Datasheet

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SLUS462E − SEPTEMBER 2000 − REVISED NOVEMBER 2004
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6
20
19
18
17
16
6
7
8
9
10
N/C − Do Not Connect
EN
VSEL
GND
CR
N/C
N/C
N/C
N/C
OUT
OUT
11 12 13 14 15
5 4 3 2 1
TMR SEL
STAT1
N/C
AGND
VSENSE
bq24001
RGW PACKAGE
(TOP VIEW)
APG/THERM ISNS V
CC
IN IN
bq24002, bq24003
RGW PACKAGE
(TOP VIEW)
20
19
18
17
16
6
7
8
9
10
EN
VSEL
GND
CR
N/C
N/C
N/C
N/C
OUT
OUT
11 12 13 14 15
5 4 3 2 1
TMR SEL
STAT1 STAT2
AGND
VSENSE
APG/THERM ISNS V
CC
IN IN
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME NO. NO.
I/O
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-enable input. 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,
15, 20
10, 13,
18−20
No connect. These pins must be left floating. Pin 15 is N/C on bq24001PWP only. Pin 13 is N/C on
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
V
CC
4 3 I Supply voltage
VSEL 9 7 I 4.1 V or 4.2 V charge regulation selection input
VSENSE 17 15 I Battery voltage sense input