ADP2291_15 Datasheet, PDF (6/20 Pages) Analog Devices – Compact, 1.5 A Linear Charger for Single-Cell Li Battery

ADP2291
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
DRV 1
GND 2
BAT 3
CS 4
ADP2291
TOP VIEW
(Not to Scale)
8 CHG
7 TIMER
6 IN
5 ADJ
DRV 1
GND 2
BAT 3
CS 4
PIN 1
INDICATOR
ADP2291
TOP VIEW
(Not to Scale)
8 CHG
7 TIMER
6 IN
5 ADJ
Figure 2. 8-Lead MSOP Pin Configuration
Figure 3. 8-Lead LFCSP Pin Configuration
Table 3. Pin Function Descriptions
Pin No. Mnemonic
Description
1
DRV
Base Driver Output. Controls the base of an external PNP pass transistor.
2
GND
Ground.
3
BAT
Battery Voltage Sense Input.
4
CS
Current Sense Resistor Negative Input.
5
ADJ
Charging Current Adjust and Charger Shutdown Input.
6
IN
Power Input and Current Sense Resistor Positive Input.
7
TIMER
Timer Programming Input/Disable.
8
CHG
LED Charge Status Indicator. This is an open-collector output.
Rev. A | Page 6 of 20