Datasheet
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
N/C
IN
IN
VCC
ISNS
N/C
APG/THERM
EN
VSEL
GND/HEATSINK
N/C
OUT
OUT
VSENSE
AGND
N/C
STAT1
TMR SEL
CR
N/C
bq24004
PWP PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
N/C
IN
IN
VCC
ISNS
N/C
APG/THERM
EN
VSEL
GND/HEATSINK
N/C
OUT
OUT
VSENSE
AGND
STAT2
STAT1
TMR SEL
CR
N/C
bq24005, bq24006
PWP PACKAGE
(TOP VIEW)
N/C - Do not connect
bq24004
bq24005
bq24006
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SLUS476F –DECEMBER 2000–REVISED MAY 2012
PIN ASSIGNMENTS
TERMINAL FUNCTIONS
TERMINAL
I/O DESCRIPTION
NAME NO.
AGND 16 Ground pin; connect close to the negative battery terminal.
APG/THERM 7 I Adapter power good input/thermistor sense input
CR 12 I Internal regulator bypass capacitor
EN 8 I Charge-enable input. Active-high enable input with internal pull down. Low-current stand-by mode
active when EN is low.
GND/HEATSIN 10 Ground pin; connect to PowerPAD heat-sink layout pattern.
K
IN 2, 3 I Input voltage. This input provides the charging voltage for the battery.
ISNS 5 I Current sense input
N/C 1, 6, 11, No connect. These pins must be left floating. Pin 15 is N/C on bq24004PWP only.
15, 20
OUT 18, 19 O Charge current output
STAT1 14 O Status display output 1
STAT2 15 O Status display output 2 (for bq24005 and bq24006 only)
TMR SEL 13 I Charge timer selection input
VCC 4 I Supply voltage
VSEL 9 I 8.2-V or 8.4-V charge regulation selection input
VSENSE 17 I Battery voltage sense input
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Product Folder Link(s): bq24004 bq24005 bq24006