Datasheet

bq24640
SLUSA44 –MARCH 2010 www.ti.com
ABSOLUTE MAXIMUM RATINGS
(1)
over operating free-air temperature range (unless otherwise noted)
VALUE UNIT
MIN MAX
VCC, SRP, SRN, STAT, PG, CE –0.3 33
PH –2 33
VFB
(3)
–0.3 16
Voltage range
(2)
REGN, LODRV, TS –0.3 7
V
BTST, HIDRV with respect to GND –0.3 39
VREF, ISET –0.3 3.6
Maximum SRP–SRN –0.5 0.5
difference voltage
Electrostatic Discharge (HBM) QSS 009-105 (JESD22-A114A) 2 kV
Electrostatic Discharge (CDM) QSS 009-147 (JESD22-C101B.01) 500 V
Temperature T
J
–40 155
°C
T
stg
–55 155
(1) Must have a series resistor between output to VFB if output voltage is expected to be greater than 16V. Usually the resistor divider top
resistor will take care of this.
(2) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability
(3) All voltages are with respect to GND if not specified. Currents are positive into, negative out of the specified terminal. Consult the
Package Option Addendum at the end of the data sheet for thermal limitations and considerations.
RECOMMENDED OPERATING CONDITIONS
VALUE / UNIT
VCC, SRP, SRN, STAT, PG, CE –0.3 V to 28 V
PH –2 V to 30 V
VFB –0.3 V to 14 V
Voltage range
REGN, LODRV, TS –0.3 V to 6.5 V
(with respect to GND)
BTST, HIDRV with respect to GND –0.3 V to 34 V
ISET –0.3 V to 3.3 V
VREF 3.3 v
Maximum difference voltage SRP–SRN –0.2 V to 0.2 V
Junction temperature range, T
J
0°C to 125°C
Storage temperature range, T
stg
–55°C to 155°C
ELECTRICAL CHARACTERISTICS
5.0 V ≤ V(VCC) ≤28 V, 0°C < T < +125°C, typical values are at T
A
= 25°C, with respect to GND (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
OPERATING CONDITIONS
V
VCC_OP
VCC input voltage operating range 5 28 V
QUIESCENT CURRENTS
Total output discharge current (sum
I
OUT
of currents into VCC, BTST, PH, V
UVLO
< V
VCC
< V
SRN
(SLEEP) 15 µA
SRP, SRN, VFB), VFB ≤ 2.1V
V
VCC
> V
SRN
, V
VCC
> V
UVLO
,
1 1.5 mA
CE = LOW
V
VCC
> V
SRN
, V
VCC
> V
VCCLOWV
,
2 5 mA
I
AC
Adapter supply current into VCC pin CE = HIGH, charge done
V
VCC
> V
SRN
, V
VCC
> V
VCCLOWV
,
CE = HIGH, Charging, Qg_total = 20 nC, 25 mA
V
VCC
= 20 V
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