|
|
EDA365欢迎您登录！
您需要 登录 才可以下载或查看，没有帐号？注册
x
DESCRIPTION
! M' ^0 f. b" r' {0 n# K: F1 fThe AP6067 is a constant current, constant voltage Li-Ion battery charger controller that uses a current mode PWM step-down (buck) switching architecture. With a 500kHz switching frequency, the AP6067 provides a small, simple and efficient solution to fast charge one (4.2V) or two (8.4V) cell lithium-ion batteries. The AP6067 charges the battery in three phases: conditioning, constant current, and constant voltage. An external sense resistor sets the charge current with ±10% accuracy. An internal resistor divider and precision reference set the final float voltage to 4.2V per cell with ±( t! `# r6 a" W4 n% R$ s* A' Z2 m
1% accuracy. An internal comparator detects the near end-of-charge condition while an internal timer sets the total charge time and terminates the charge cycle. The AP6067 automatically re-starts the charge if the b attery voltage falls below an internal threshold, 4.05V per cell. The AP6067 also automatically enters sleep mode wh en DC supplies are removed. The AP6067 is available in the 8-lead SOP and 10-l ead TDFN packages. ; V: b. e% }/ E/ _$ A
2 D3 ]& X3 _3 x, G* |+ k# ]1 ]
! I/ T1 q+ }4 M6 D. ~) S. p. y6 eFEATURES
% E7 |3 i8 J; x9 i$ j$ B( Q; d Wide Input Supply Voltage Range: 4.8V to 20V – 4.2 Version 8.9V to 20V – 8.4 Version 8.9V to 20V – 8.4A Version
2 ?4 {4 s1 h) h# c/ w 500kHz Switching Frequency
* _) Z# Q3 F; _$ y End-of-Charge Current Detection Output
y+ g9 W. u, ? s) k% B, Y8 R 7 Hour Charge Termination Timer# o4 Z6 E* d. ]+ |3 K
±1% Charge Voltage Accuracy. v+ G `: `( N/ j7 a$ ]
±10% Charge Current Accuracy5 R3 ?( }* b1 t6 x- B' B3 S
Low 10μA Reverse Battery Drain Current6 P) \, O# _2 H) P, e/ C8 t- u/ b
Automatic Battery Recharge3 ]/ c+ n0 C% e/ I* W* v
Automatic Trickle Charging of Low Voltage Batteries8 H, i8 L1 D& j; I& M
Automatic Sleep Mode for Low Power Consumption: m8 a" e u7 R! {! a a$ Z
Battery Temperature Sensing5 J U- A4 |' Z+ T4 C3 F4 m
Stable with Ceramic Output Capacitor2 l: c$ U. b* j' w: G `
Support up to 3A Charge Current6 d( }- B1 ^, n5 v" \" k
8-Lead SOP and 10-Lead TDFN Packages! O2 z6 e2 i/ G( u1 n
RoHS Compliant and 100% Lead (Pb)-Free Halogen-Free
! ]& j, X2 V \; t& `! @! n: rAPPLICATIONS0 y1 O% _& a V
Small Notebook Computer2 F! a+ O z, F; {. g
Portable DVD
! o' v5 \( f0 E& y, [, { Handheld Instruments 1 Z& c8 z; e- M' W0 h3 M4 d
$ h9 T! r K2 L1 \! h, v% u
) ~( h8 d+ g- z5 t: z, a
, V; G: m$ | m4 ? |
|
/1 
发表于 2022-12-7 11:09
收藏
淘帖
支持！
反对！
楼主