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c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 1 a n p e c r e s e r v e s t h e r i g h t t o m a k e c h a n g e s t o i m p r o v e r e l i a b i l i t y o r m a n u f a c t u r a b i l i t y w i t h o u t n o t i c e , a n d a d v i s e c u s t o m e r s t o o b t a i n t h e l a t e s t v e r s i o n o f r e l e v a n t i n f o r m a t i o n t o v e r i f y b e f o r e p l a c i n g o r d e r s . l i + b a t t e r y c h a r g e r w i t h t h e r m a l r e g u l a t i o n p r o g r a m m a b l e c h a r g e c u r r e n t u p t o 5 0 0 m a c h a r g e s t a t u s o u t p u t p i n s o f t - s t a r t l i m i t s i n r u s h c u r r e n t 4 . 2 v c h a r g e t e r m i n a t i o n v o l t a g e w i t h 1% accuracy 4 5 m a p r e - c h a r g e c u r r e n t ( r s e t = 2 k ) t h e r m a l r e g u l a t i o n s i m p l i f i e s b o a r d d e s i g n e n a b l e / d i s a b l e c o n t r o l a v a i l a b l e i n a s o t - 2 3 - 5 p a c k a g e lead free and green devices available (rohs compliant) the APL3202 is a constant-current/constant-voltage lin- ear charger for single cell li+ batteries. the APL3202 needs no external mosfets or diodes, and accepts in- put voltages up to 6.5v. the small package and low ex- ternal component counts make the APL3202 an idea part for portable applications. f e a t u r e s g e n e r a l d e s c r i p t i o n a p p l i c a t i o n s b l u e t o o t h a p p l i c a t i o n s m p 3 p l a y e r s c e l l p h o n e s w i r e l e s s a p p l i a n c e s p i n c o n f i g u r a t i o n on-chip thermal regulation protects the APL3202 from excessive temperature and optimizes the board design for compact size and typical thermal conditions. when the junction temperature reaches the thermal regulation threshold, the charger does not shut down but simply reduces the charge current. charge current can be pro- grammed by connecting an external resistor from iset pin to gnd. using an external mosfet to disconnect the resistor from ground shuts down the charger, and re- duces the input supply current down to 25 m a. the APL3202 also has the stat pin to indicate charge status. the APL3202 is available in a sot-23-5 package, and operates over the -40c to +85c temperature range. s i m p l i f i e d a p p l i c a t i o n c i r c u i t vin iset stat batt gnd APL3202 li+ battery 5v adapter gnd 2 5 iset batt 3 4 vin stat 1 sot-23-5 (top view) APL3202
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 2 symbol parameter rating unit v in vin to gnd - 0.3 to 7 v v set , v stat , v batt iset, stat, batt to gnd - 0.3 to 7 v i chg charge current 0.8 a t j maximum junction temperature 150 c t stg storage temperature range - 65 to 150 c t sdr maximum lead soldering t emperature , 10 s ec onds 260 c a b s o l u t e m a x i m u m r a t i n g s ( n o t e 1 ) n o t e 1 : s t r e s s e s b e y o n d t h o s e l i s t e d u n d e r " a b s o l u t e m a x i m u m r a t i n g s " m a y c a u s e p e r m a n e n t d a m a g e t o t h e d e v i c e . t h e s e a r e s t r e s s r a t i n g s o n l y a n d f u n c t i o n a l o p e r a t i o n o f t h e d e v i c e a t t h e s e o r a n y o t h e r c o n d i t i o n s b e y o n d t h o s e i n d i c a t e d u n d e r " r e c o m - m e n d e d o p e r a t i n g c o n d i t i o n s " i s n o t i m p l i e d . e x p o s u r e t o a b s o l u t e m a x i m u m r a t i n g c o n d i t i o n s f o r e x t e n d e d p e r i o d s m a y a f f e c t d e v i c e r e l i a b i l i t y . t h e r m a l c h a r a c t e r i s t i c s symbol parameter typical value unit q ja junction to ambient resistance (note 2) sot - 23 - 5 125 c/w r e c o m m e n d e d o p e r a t i n g c o n d i t i o n s ( n o t e 3 ) symbol parameter range unit v in vin to gnd 4.35 to 6.5 v i chg charge current 0.1 to 0.5 a t j junction temperature - 40 to 125 c t a ambient temperature - 40 to 85 c note 2: q ja is measured with the component mounted on a high effective thermal conductivity test board in free air. n o t e 3 : r e f e r t o t h e t y p i c a l a p p l i c a t i o n c i r c u i t . o r d e r i n g a n d m a r k i n g i n f o r m a t i o n n o t e : a n p e c l e a d - f r e e p r o d u c t s c o n t a i n m o l d i n g c o m p o u n d s / d i e a t t a c h m a t e r i a l s a n d 1 0 0 % m a t t e t i n p l a t e t e r m i n a t i o n f i n i s h ; w h i c h a r e f u l l y c o m p l i a n t w i t h r o h s . a n p e c l e a d - f r e e p r o d u c t s m e e t o r e x c e e d t h e l e a d - f r e e r e q u i r e m e n t s o f i p c / j e d e c j - s t d - 0 2 0 d f o r m s l c l a s s i f i c a t i o n a t l e a d - f r e e p e a k r e f l o w t e m p e r a t u r e . a n p e c d e f i n e s ? g r e e n ? t o m e a n l e a d - f r e e ( r o h s c o m p l i a n t ) a n d h a l o g e n f r e e ( b r o r c l d o e s n o t e x c e e d 9 0 0 p p m b y w e i g h t i n h o m o g e n e o u s m a t e r i a l a n d t o t a l o f b r a n d c l d o e s n o t e x c e e d 1 5 0 0 p p m b y w e i g h t ) . APL3202 package code b : sot-23-5 operating ambient temperature range i : -40 to 85 o c handling code tr : tape & reel assembly material g : halogen and lead free device handling code temperature range package code APL3202 b: 302x x - date code assembly material
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 3 refer to the typical application circuit. these specifications apply over v in =5v, t a = -40~85 c , unless otherwise specified. typical values are at t a =25 c. e l e c t r i c a l c h a r a c t e r i s t i c s APL3202 symbol parameter test conditions min . typ . max . unit supply current charge mode, r set =10k - 300 600 standby mode (charge terminated) - 200 500 i in vin supply current (note 4) shutdown mode (r set not connected, v in c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 4 refer to the typical application circuit. these specifications apply over v in =5v, t a = -40~85 c , unless otherwise specified. typical values are at t a =25 c. e l e c t r i c a l c h a r a c t e r i s t i c s ( c o n t . ) APL3202 symbol parameter test conditions min . typ . max . unit stat pin and thermal regulation v stat stat output low voltage i stat = 5ma - 0.35 0.6 v stat off - leakage current v stat =5v - - 1 m a t lim thermal regulation threshold - 120 - c soft - sta rt and timing t ss soft - start interval i chg =0a to full c harging c urrent t a =25 c - 100 - m s t recharge recharge comparator filter time v batt high to low, t a =25 c 0.75 2 4.5 ms t term termination comparator filter time i chg falling below i term, t a =25 c 0.4 1 2.5 ms n o t e 4 : s u p p l y c u r r e n t i n c l u d e s i s e t p i n c u r r e n t b u t d o e s n o t i n c l u d e a n y c u r r e n t d e l i v e r e d t o t h e b a t t e r y t h r o u g h t h e b a t t p i n .
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 5 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s i s e t p i n v o l t a g e v s . v i n s u p p l y v o l t a g e i s e t p i n v o l t a g e v s . j u n c t i o n t e m p e r a t u r e c h a r g e c u r r e n t v s . i s e t p i n v o l t a g e i s e t p i n p u l l - u p c u r r e n t v s . j u n c t i o n t e m p e r a t u r e i s e t p i n p u l l - u p c u r r e n t v s . i s e t p i n v o l t a g e refer to the typical application circuit, v in =5v, t a = 25 c , unless otherwise specified. b a t t c h a r g e t e r m i n a t i o n v o l t a g e v s . j u n c t i o n t e m p e r a t u r e i s e t p i n v o l t a g e ( v ) vin supply voltage (v) v batt = 4v r set = 10k 0.985 0.990 1.000 1.005 1.015 0.995 1.010 4 4.5 5 5.5 6 c h a r g e c u r r e n t ( a ) iset pin voltage (v) v in = 5v r set = 2k 0 0.1 0.2 0.3 0.4 0.5 0 0.2 0.4 0.6 0.8 1 i s e t p i n v o l t a g e ( v ) junction temperature ( o c) v in = 5v v batt = 4v r set = 10k 0.96 0.97 0.98 0.99 1 1.01 1.02 1.03 1.04 -50 -25 0 25 50 75 100 junction temperature ( o c) i s e t p i n p u l l - u p c u r r e n t ( m a ) -50 -25 0 25 50 75 100 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 v in = 6.5v v batt = 4.3v v set = 0v b a t t c h a r g e t e r m i n a t i o n v o l t a g e ( v ) junction temperature ( o c) v in = 5v r set = 10k -50 -25 0 25 50 75 100 4.1 4.15 4.2 4.25 4.3 i s e t p i n p u l l - u p c u r r e n t ( m a ) iset pin voltage (v) v in = 5v v batt = 4.3v 0 1 2 3 4 5 0 0.5 1 1.5 2 2.5 3
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 6 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) b a t t c h a r g e t e r m i n a t i o n v o l t a g e v s . v i n s u p p l y v o l t a g e s t a t p i n i - v c u r v e s t a t p i n c u r r e n t v s . j u n c t i o n t e m p e r a t u r e p r e - c h a r g e c u r r e n t v s . j u n c t i o n t e m p e r a t u r e p r e - c h a r g e t h r e s h o l d v o l t a g e v s . j u n c t i o n t e m p e r a t u r e p r e - c h a r g e c u r r e n t v s . v i n s u p p l y v o l t a g e refer to the typical application circuit, v in =5v, t a = 25 c , unless otherwise specified. vin supply voltage (v) r set = 10k 4.1 4.12 4.14 4.16 4.18 4.2 4 4.5 5 5.5 6 6.5 7 b a t t c h a r g e t e r m i n a t i o n v o l t a g e ( v ) s t a t p i n s i n k c u r r e n t ( m a ) stat pin voltage (v) v in = 5v v batt = 4v 0 1 2 3 4 5 0 5 10 15 20 25 30 s t a t p i n c u r r e n t ( m a ) junction temperature ( o c) v in = 5v v batt = 4v v stat = 1v -50 -25 0 25 50 75 100 0 4 8 12 16 20 p r e - c h a r g e c u r r e n t ( m a ) junction temperature ( o c) v in = 5v v batt = 2.5v r set = 2k r set = 10k 0 10 20 30 40 50 60 -50 -25 0 25 50 75 100 p r e - c h a r g e c u r r e n t ( m a ) vin supply voltage (v) v batt = 2.5v r set = 2k r set = 10k 0 10 20 30 40 50 60 70 4 4.5 5 5.5 6 6.5 7 p r e - c h a r g e t h r e s h o l d v o l t a g e ( v ) junction temperature ( o c) v in = 5v r set = 10k -50 -25 0 25 50 75 100 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 7 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) c h a r g e c u r r e n t v s . b a t t v o l t a g e r e c h a r g e t h r e s h o l d v o l t a g e v s . j u n c t i o n t e m p e r a t u r e c h a r g e c u r r e n t v s . v i n - v b a t t p o w e r f e t o n r e s i s t a n c e v s . j u n c t i o n t e m p e r a t u r e refer to the typical application circuit, v in =5v, t a = 25 c , unless otherwise specified. batt voltage (v) v in = 5v r set = 2k c h a r g e c u r r e n t ( m a ) 2.7 3 3.3 3.6 3.9 4.2 4.5 0 100 200 300 400 500 600 junction temperature ( o c) p o w e r f e t o n r e s i s t a n c e ( w ) 0.3 0.5 0.7 0.9 1.1 1.3 1.5 v in = 4.2v i chg = 0.1a -50 0 50 100 150 r e c h a r g e t h r e s h o l d v o l t a g e ( v ) junction temperature ( o c) v in = 5v r set = 10k 3.99 4.01 4.03 4.05 4.07 4.09 4.11 -50 -25 0 25 50 75 100 c h a r g e c u r r e n t ( a ) v in -v batt (v) r set = 2k 0 0.1 0.2 0.3 0.4 0.5 0 0.2 0.4 0.6 0.8 1
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 8 o p e r a t i n g w a v e f o r m s refer to the typical application circuit, v in =5v, t a = 25 c , unless otherwise specified. v i n p o w e r o n ch1: v in , 2v/div, dc ch4: i chg , 0.2a/div, dc time: 0.1 ms/div r set = 2k, v batt =3.8v 4 1 4 v in i chg ch2: v set , 2v/div, dc ch4: i chg , 0.2a/div, dc time: 0.1 ms/div ch3: v stat , 5v/div, dc r set = 2k, v batt =3.8v s t a r t - u p ( r e c o n n e c t i n g r s e t t o g n d ) 4 4 3 2 i chg v stat v set s h u t d o w n ( d i s c o n n e c t i n g r s e t f r o m g n d ) ch2: v set , 2v/div, dc ch4: i chg , 0.2a/div, dc time: 0.1 ms/div ch3: v stat , 5v/div, dc r set = 2k, v batt =3.8v 4 3 2 i chg v stat v set
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 9 pin no. name function 1 stat open - drain charge s tat u s o utput p in. when the battery is charging, the stat pin is pulled low by an internal switch. in other states the stat pin is in a high impedance state. 2 gnd ground. 3 batt charger o utput p in. conn ect this pin to the positive terminal of a li+ battery. 4 vin input supply pin. provides power to the charger, v in can range from 4.35v to 6.5v and should be bypassed with a 4.7 m f capacitor. 5 iset c harging c urrent s etting and shutdown p in. connecting a resistor from this pin to gnd to set the charge current. disconnecting the r set from gnd allows an internal 2.5 m a current to pull the iset pin high, and when the iset pin voltage exceeds the shutdown threshold voltage, the ic enters shutdown mode. e n a b l e i n c h a r g e d o n e p i n d e s c r i p t i o n b l o c k d i a g r a m 1.21v charge control circuit batt gnd iset stat vin 2.9v 1.21v thermal regulation uvlo 2.5 m a v in 1v 0.1v constant voltage loop amp. constant current loop amp. pre-charge comp. s h u t d o w n
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 1 0 t y p i c a l a p p l i c a t i o n c i r c u i t designation description c1 4.7 m f, 10v, x5r, 0 805 murata grm1 88 r61a 475 k q1 sot - 23, n - channel mosfet anpec ap m2300ca murata website: www.murata.com vin iset stat batt gnd apl 3202 li + battery 4 . 7 m f 2 k w 10 k to 100 k w on off c 1 r 1 r 2 q 1 1 3 2 5 4 4 . 35 ~ 6 . 5 v r 3 2 k w ( option )
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 1 1 f u n c t i o n d e s c r i p t i o n charge cycle when the APL3202 is powered with a battery connected, the ic firstly detects if the cell voltage is ready for full charge current. if the battery voltage is below pre-charge threshold (2.9v typ.), the device supplies 1/10 the pro- grammed charge current. on the contrary, when the bat- tery voltage is over the pre-charge threshold, the device supplies the full charge current, as programmed by r set from iset pin to gnd. when the battery voltage ap- proaches the 4.2v termination voltage, the device enters constant-voltage mode and the full charge current gradu- ally decreases until the charge current drops to the termi- nation current threshold, which is equal to 1/10 full charg- ing current, and the ic stops charging (see figure 1). f u l l c h a r g e c u r r e n t s e t t i n g t h e f u l l c h a r g e c u r r e n t i s p r o g r a m m e d b y c o n n e c t i n g a r e s i s t o r f r o m t h e i s e t p i n t o g r o u n d . t h e f u l l c h a r g e c u r - r e n t i s 1 0 0 0 t i m e s o f t h e c u r r e n t f l o w i n g o u t o f t h e i s e t p i n a n d c a n b e c a l c u l a t e d b y t h e f o l l o w i n g e q u a t i o n : set set set chg r v k i = w h e r e v s e t i s i s e t r e g u l a t i o n v o l t a g e ( 1 v , t y p i c a l ) . k s e t i s t h e c h a r g i n g c u r r e n t s e t f a c t o r ( 1 0 0 0 , t y p i c a l ) . t h e c h a r g i n g c u r r e n t s e t f a c t o r a n d t h e i s e t r e g u l a t i o n v o l t a g e a r e s h o w n i n t h e e l e c t r i c a l c h a r a c t e r i s t i c s . t h e i s e t r e g u l a t i o n v o l t a g e i s r e d u c e d b y t h e r m a l r e g u l a t i o n f u n c t i o n . c h a r g e t e r m i n a t i o n d e t e c t i o n a n d r e c h a r g e c h a r g i n g i s t e r m i n a t e d w h e n i c h g f a l l s t o 1 0 % o f t h e f u l l c h a r g e c u r r e n t s e t b y r s e t a n d t h e c h a r g e r i s i n v o l t a g e m o d e ( v b a t t i s n e a r l y 4 . 2 v ) . t h e c h a r g e t e r m i n a t i o n i s d e t e c t e d b y m o n i t o r i n g t h e i s e t p i n . w h e n t h e i s e t p i n v o l t a g e f a l l s b e l o w 0 . 1 v a n d t a k e s l o n g e r t h a n t t e r m ( 1 m s , t y p i c a l ) , c h a r g i n g i s t e r m i n a t e d . t h e s t a t o u t p u t k e e p s h i g h s t a t e w h e n t h e c h a r g e r o p e r a t e s i n s t a n d b y m o d e . a f t e r c h a r g e t e r m i n a t i o n , t h e b a t t e r y v o l t a g e i s m o n i t o r e d b y t h e a p l 3 2 0 2 c o n t i n u o u s l y . i f t h e b a t t e r y v o l t a g e d r o p s b e l o w 4 . 0 5 v a n d t a k e s l o n g e r t h a n t r e c h a r g e ( 2 m s , t y p i c a l ) , a n e w c h a r g e c y c l e s t a r t s t o r e c h a r g e t h e b a t t e r y . m a n u a l s h u t d o w n t h e i s e t p i n p r o v i d e s t w o f u n c t i o n s : c o n n e c t i n g t h e r e - s i s t o r r s e t f r o m t h e i s e t p i n t o g r o u n d t o s e t t h e f u l l c h a r g e c u r r e n t ; a n d d i s c o n n e c t i n g t h e r s e t f r o m g n d t o s h u t d o w n t h e d e v i c e . o n c e t h e r s e t i s d i s c o n n e c t e d , a n i n t e r n a l 2 . 5 m a c u r r e n t p u l l s t h e i s e t p i n h i g h . w h e n t h e i s e t p i n v o l t a g e r e a c h e s t h e 1 . 2 1 v s h u t d o w n t h r e s h o l d v o l t a g e , t h e d e v i c e e n t e r s s h u t d o w n m o d e . i n s h u t d o w n m o d e , t h e c h a r g i n g s t o p s , t h e v i n s u p p l y c u r r e n t d r o p s t o 2 5 m a a n d t h e b a t t e r y d r a i n c u r r e n t i s b e l o w 1 m a . r e - c o n n e c t i n g r s e t t o g r o u n d e n a b l e s t h e c h a r g e r t o o p e r a - t i o n n o r m a l l y . t h e s t a t o u t p u t k e e p s h i g h s t a t e w h e n t h e c h a r g e r i s t u r n e d t o s h u t d o w n m o d e . t h e r m a l r e g u l a t i o n the APL3202 is thermally regulated to keep the junction temperature at 120 c . when the junction temperature reaches 120 c , the charger does not shut down but re- duces charge current to keep the junction temperature at 120 c . this feature protects the APL3202 from exces- sive temperature and allows the charger to operate with maximum power dissipation by reudcing the charge cur- rent and optimizes the board design for compact size and typical thermal conditions. c h a r g e s t a t u s o u t p u t ( s t a t ) t h e s t a t i s a n o p e n - d r a i n o u t p u t . w h e n t h e c h a r g e r i s i n c h a r g e m o d e , t h e s t a t o u t p u t i s i n p u l l - l o w s t a t e . u n t i l t h e c h a r g e c u r r e n t d r o p s t o t h e t e r m i n a t i o n c u r r e n t t h r e s h o l d , t h e c h a r g i n g s t o p s , a n d t h e s t a t o u t p u t i s i n h i g h i m p e d a n c e s t a t e .
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 1 2 f u n c t i o n d e s c r i p t i o n ( c o n t . ) stat output mode v in v batt v set low charge mode v in >v uvlo & v in >v ba t t +v asd v bat t <4.2v 0.1v1.2v standby mode v in >v uvlo & v in >v bat t +v asd v bat t >4.2v - high sleep mode v in c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 1 3 a p p l i c a t i o n i n f o r m a t i o n i n p u t a n d o u t p u t c a p a c i t o r s typically, a 4.7 m f ceramic capacitor is used to connect from vin to gnd. place the capacitor as close as pos- sible to the vin pin and gnd pin for well operation. in some start-up conditions, it maybe necessary to protect the device against a hot plug input voltage. adding a 6v input zener diode between the vin pin and gnd clamps the input voltage peak. in most applications, it is also recommended to connect an x5r ceramic capacitor (1 m f, typical) from batt to gnd for proper stability. s t a t p i n t h e s t a t p i n c a n b e u s e d t o d r i v e a l e d o r c o m m u n i c a t e w i t h t h e h o s t p r o c e s s o r t o s h o w t h e c h a r g e s t a t u s . w h e n t h e s t a t u s i s d i s p l a y e d b y a l e d , w h i c h h a s a c u r r e n t r a t i n g l e s s t h a n 5 m a , a r e s i s t o r s h o u l d b e s e l e c t e d t o c o n n e c t t h e l e d i n s e r i e s , f o r p r o g r a m m i n g a t t h e d e - s i r e d c u r r e n t v a l u e . t h e r e s i s t o r i s c a l c u l a t e d b y t h e f o l - l o w i n g e q u a t i o n : led on - led in led i ) v v ( r - = when stat pin is monitored by a processor, there should be a 10k w to 100k w pull-up resistor to connect the stat pin and the supply voltage of the processor. t h e r m a l c o n s i d e r a t i o n the most common measure of package thermal perfor- mance is thermal resistance measured from the device junction to the air surrounding the package surface ( q ja ). the q ja can be calculated by the following equation: d a j ja p t t - = q where: t j = device junction temperature, maximum t j =120 c t a = ambient temperature p d = device power dissipation the device power dissipation, p d , is a function of the charge rate and the voltage drop across the internal fet. it can be calculated by the following equation: p c b l a y o u t c o n s i d e r a t i o n connect the battery to batt as close as possible to pro- vide accurate battery voltage sensing. the input and out- put decoupling capacitors and the programmed resistor r set should be placed as close as possible to the device. the high-current charge paths into vin and from the batt pins must be short and wide to minimize voltage drops. r e c o m m e n d e d m i n i m u m f o o t p r i n t 0 . 0 5 0.02 0 . 1 0.038 0.076 unit : inch sot-23-5 chg batt in d i ) v v ( p - =
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 1 4 p a c k a g e i n f o r m a t i o n s o t - 2 3 - 5 max. 0.057 0.051 0.024 0.006 0.009 0.020 0.012 l 0.30 0 e e1 e1 e d c b 0.08 0.30 0.60 0.012 0.95 bsc 1.90 bsc 0.22 0.50 0.037 bsc 0.075 bsc 0.003 min. millimeters s y m b o l a1 a2 a 0.00 0.90 sot-23-5 max. 1.45 0.15 1.30 min. 0.000 0.035 inches 8 0 8 0 b c e1 0 l view a 0 . 2 5 gauge plane seating plane a a 2 a 1 e d e e 1 see view a 1.40 2.60 1.80 3.00 2.70 3.10 0.122 0.071 0.118 0.102 0.055 0.106 note : 1. follow jedec to-178 aa. 2. dimension d and e1 do not include mold flash, protrusions or gate burrs. mold flash, protrusion or gate burrs shall not exceed 10 mil per side.
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 1 5 application a h t1 c d d w e1 f 178.0 ? 2.00 50 min. 8.4+2.00 - 0.00 13.0+0.50 - 0.20 1.5 min. 20.2 min. 8.0 ? 0.30 1.75 ? 0.10 3.5 ? 0.05 p 0 p1 p 2 d 0 d1 t a 0 b 0 k 0 sot - 23 - 5 4.0 ? 0.10 4.0 ? 0.10 2.0 ? 0.05 1.5+0.10 - 0.00 1.0 min. 0.6+0.00 - 0.4 0 3.20 ? 0.20 3.10 ? 0.20 1.50 ? 0.20 (mm) d e v i c e s p e r u n i t c a r r i e r t a p e & r e e l d i m e n s i o n s package type unit quantity sot - 23 - 5 tape & reel 3000 a e 1 a b w f t p0 od0 b a0 p2 k0 b 0 section b-b section a-a od1 p1 h t1 a d
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 1 6 t a p i n g d i r e c t i o n i n f o r m a t i o n user direction of feed s o t - 2 3 - 5 c l a s s i f i c a t i o n p r o f i l e
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 1 7 c l a s s i f i c a t i o n r e f l o w p r o f i l e s profile feature sn - pb eutectic assembly pb - free assembly preheat & soak temperature min (t smin ) temperature max (t smax ) time (t smin to t smax ) ( t s ) 100 c 150 c 60 - 120 seconds 150 c 200 c 60 - 1 2 0 seconds average ramp - up rate (t smax to t p ) 3 c/second ma x. 3 c/second max. liquidous temperature ( t l ) time at l iquidous (t l ) 183 c 60 - 150 seconds 217 c 60 - 150 seconds peak package body temperature (t p ) * see classification temp in table 1 see classification temp in table 2 time (t p ) ** within 5 c of the spec ified c lassification t emperature ( t c ) 2 0 ** seconds 3 0 ** seconds average r amp - down rate (t p to t smax ) 6 c/second max. 6 c/second max. time 25 c to p eak t emperature 6 minutes max. 8 minutes max. * tolerance for peak profile temperature (t p ) is defined a s a supplier minimum and a user maximum. ** tolerance for time at peak profile temperature (t p ) is defined as a supplier minimum and a user maximum. table 2. pb - free process ? classification temperatures (tc) package thickness volume mm 3 <350 volume mm 3 350 - 2000 volume mm 3 >2000 <1.6 mm 260 c 260 c 260 c 1.6 mm ? 2.5 mm 260 c 250 c 245 c 3 2.5 mm 250 c 245 c 245 c table 1. snpb eutectic process ? classification temperatures (tc) package thickness volume mm 3 <350 volume mm 3 3 350 <2.5 mm 235 c 22 0 c 3 2.5 mm 220 c 220 c test item method description solderability jesd - 22, b102 5 sec, 245 c holt jesd - 22, a108 1000 hrs, bias @ tj=125 c pct jesd - 22, a102 168 hrs, 100 % rh, 2atm , 121 c tct jesd - 22, a104 500 cycles, - 65 c~150 c hbm mil - std - 883 - 3015.7 vhbm ? 2kv mm jesd - 22, a1 15 vmm ? 200v latch - up jesd 78 10ms, 1 tr ? 100ma r e l i a b i l i t y t e s t p r o g r a m
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 3 - m a r . , 2 0 1 2 a p l 3 2 0 2 w w w . a n p e c . c o m . t w 1 8 c u s t o m e r s e r v i c e a n p e c e l e c t r o n i c s c o r p . head office : no.6, dusing 1st road, sbip, hsin-chu, taiwan, r.o.c. tel : 886-3-5642000 fax : 886-3-5642050 t a i p e i b r a n c h : 2 f , n o . 1 1 , l a n e 2 1 8 , s e c 2 j h o n g s i n g r d . , s i n d i a n c i t y , t a i p e i c o u n t y 2 3 1 4 6 , t a i w a n t e l : 8 8 6 - 2 - 2 9 1 0 - 3 8 3 8 f a x : 8 8 6 - 2 - 2 9 1 7 - 3 8 3 8

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