BQ24001 Datasheet, PDF (6/23 Pages) Texas Instruments – SINGLE-CELL Li-ION CHARGE MANAGEMENT IC FOR PDAs AND INTERNET APPLIANCES

bq24001
bq24002
bq24003
SLUS462D – SEPTEMBER 2000 – REVISED MAY 2002
bq24001
RGW PACKAGE
(TOP VIEW)
bq24002, bq24003
RGW PACKAGE
(TOP VIEW)
www.ti.com
EN 6
VSEL 7
GND 8
CR 9
N/C 10
20 N/C
19 N/C
18 N/C
17 OUT
16 OUT
EN 6
VSEL 7
GND 8
CR 9
N/C 10
20 N/C
19 N/C
18 N/C
17 OUT
16 OUT
N/C – Do Not Connect
Terminal Functions
TERMINAL
NAME
NO.
I/O
NO.
DESCRIPTION
AGND
16
14
Ground pin; connect close to the negative battery terminal.
APG/THERM
7
5
I Adapter power good input/thermistor sense input
CR
12
9
I Internal regulator bypass capacitor
EN
8
6
I Charge-enableinput. Active-high enable input with internal pull down. Low-current stand-by mode
active when EN is low.
GND/HEATSINK 10
8
Ground pin; connect to PowerPAD heat-sink layout pattern.
IN
2, 3
1, 2
I Input voltage. This input provides the charging voltage for the battery.
ISNS
5
4
I Current sense input
N/C
1, 6, 11, 10, 13,
No connect. These pins must be left floating. Pin 15 is N/C on bq24001PWP only. Pin 13 is N/C on
15, 20 18–20
bq24001RGW only.
OUT
18, 19 16, 17 O Charge current output
STAT1
14
12 O Status display output 1
STAT2
15
13 O Status display output 2 (for bq24002 and bq24003 only)
TMR SEL
13
11
I Charge timer selection input
VCC
VSEL
4
3
I Supply voltage
9
7
I 4.1 V or 4.2 V charge regulation selection input
VSENSE
17
15
I Battery voltage sense input
6