AAT3670(2007) データシートの表示（PDF） - Advanced Analogic Technologies

部品番号

コンポーネント説明

メーカー

AAT3670
(Rev.:2007)

1.6A Dynamic Battery Charger and Power Manager

Advanced Analogic Technologies 

AAT3670

1.6A Dynamic Battery Charger

and Power Manager

Pin Descriptions

Pin #

1

2, 3

4, 5

6

7

8

9

10

11

12

13

14

15

16

17

Name

USBSEL

OUT

BAT

ADP

VTS

TS

BATS

CHRADP

ADPLIM

USBLIM

ADPSET

USBSET

GND

TERM

EN

Type

I

O

I/O

I

O

I

I

I/O

I

I

I

I

I/O

I

I

Function

Logic input. High for 100% USB charge current set by USBSET; low for 20% (con-

stant current charge mode) or 50% (trickle charge mode) charge current set by the

USBSET resistor.

System load output; a capacitor with a minimum value of 10µF (including all capaci-

tance on the load of OUT) is required.

Battery pack input/output. For best operation, a 1µF ceramic capacitor should be

placed between BAT and GND.

AC adapter input, source of system load and battery charging. Minimum 1µF input

capacitor.

Voltage reference for battery temperature sensing.

Battery temperature sensing input. Use an NTC resistor from TS pin to ground and

a 1% standard resistor that has equal resistance of the NTC at 25°C from VTS to

TS for battery temperature sensing. Tie TS pin to ground to disable the temperature

sensing function.

Battery sense pin.

ADP voltage sensed charge reduction programmable pin. A resistor divider from

ADP to this pin and GND sets the charge reduction threshold. When this pin is

open, the charge reduction threshold is 4.6V. If this pin is tied to the ADP pin, the

charge reduction is disabled.

Connect a resistor to this pin to set the ADP input current limit (including load switch

and charger currents).

Connect a resistor to this pin to set the USB input current limit (including load switch

and charger currents).

Connect a resistor to this pin to set the ADP charge current (for trickle charge and

constant current charge). The CC current set by this pin should be less than the

current limit set by ADPLIM, otherwise the CC current will be limited by ADPLIM.

Connect a resistor to this pin to set the USB charge current (for trickle charge and

constant current charge). The CC current set by this pin should be less than the

current limit set by USBLIM, otherwise the CC current will be limited by USBLIM.

Common ground.

Connect a resistor to this pin to program the charge termination current threshold.

No termination current setting when this pin is pulled up to a logic high level.

ADP/USB enable input. High or floating (internal pull-up) to enable ADP/USB

switch and ADP/USB battery charging; low to disable ADP/USB switch and

ADP/USB battery charging.

2

3670.2007.02.1.1

Share Link: