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DESCRIPTION D! q4 F4 T# h9 q( c
The 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 ±, h( |/ D# v2 }$ D
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. 2 x2 P3 Y2 {# f. L
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7 @0 @4 o" g+ X" c HFEATURES
) o0 j- l \" ]& k1 Z( |$ s 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
- B5 D' H3 `5 H4 k, D7 a 500kHz Switching Frequency
9 E3 w0 A, i* N" L& @" ] End-of-Charge Current Detection Output8 A* z5 k* e0 A$ ]/ r
7 Hour Charge Termination Timer. Y" a$ I0 L5 q' I* G: i$ U; ]
±1% Charge Voltage Accuracy- Z% b4 _5 O; V9 ^2 t# }2 ?6 r+ `; h
±10% Charge Current Accuracy& t+ M9 o! s1 _# U( p# e
Low 10μA Reverse Battery Drain Current
$ A8 s7 Z3 F9 t7 p/ ? Automatic Battery Recharge( O! f8 d9 k8 X" L. {
Automatic Trickle Charging of Low Voltage Batteries
) i6 g; K2 V% v$ {4 [; e' J Automatic Sleep Mode for Low Power Consumption2 e0 s/ L+ @8 g0 O- X8 g
Battery Temperature Sensing# [5 T; X S6 |6 ~
Stable with Ceramic Output Capacitor
$ v3 m, w1 s8 ~, J3 J8 L1 z2 m Support up to 3A Charge Current2 `; D% I7 q4 {7 d
8-Lead SOP and 10-Lead TDFN Packages: L, e" O* a) J' m9 Q7 u
RoHS Compliant and 100% Lead (Pb)-Free Halogen-Free; v0 O5 M; Q- }8 m8 N$ ]
APPLICATIONS7 z: p. D1 H* l, k6 L8 Z
Small Notebook Computer
* c# `: s) ]. d$ I h$ S Portable DVD
! d5 k' T9 z0 C3 C3 |( R7 P Handheld Instruments
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发表于 2022-12-7 11:09
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