BQ24640 Datasheet, PDF (4/25 Pages) Texas Instruments – High-Efficiency Synchronous Switch-Mode Super Capacitor Charger

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
Voltage range ⁽²⁾
PH
VFB ⁽³⁾
REGN, LODRV, TS
BTST, HIDRV with respect to GND
–2
33
–0.3
16
–0.3
7
V
–0.3
39
VREF, ISET
–0.3
3.6
Maximum
SRP–SRN
difference voltage
–0.5
0.5
Electrostatic Discharge (HBM) QSS 009-105 (JESD22-A114A)
2
kV
Electrostatic Discharge (CDM) QSS 009-147 (JESD22-C101B.01)
500
V
Temperature
T_J
T_stg
–40
155
°C
–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
VCC, SRP, SRN, STAT, PG, CE
PH
Voltage range
(with respect to GND)
VFB
REGN, LODRV, TS
BTST, HIDRV with respect to GND
ISET
VREF
Maximum difference voltage
SRP–SRN
Junction temperature range, T_J
Storage temperature range, T_stg
VALUE / UNIT
–0.3 V to 28 V
–2 V to 30 V
–0.3 V to 14 V
–0.3 V to 6.5 V
–0.3 V to 34 V
–0.3 V to 3.3 V
3.3 v
–0.2 V to 0.2 V
0°C to 125°C
–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
QUIESCENT CURRENTS
5
28 V
Total output discharge current (sum
I_OUT
of currents into VCC, BTST, PH,
V_UVLO < V_VCC < V_SRN (SLEEP)
SRP, SRN, VFB), VFB ≤ 2.1V
15 µA
V_VCC > V_SRN, V_VCC > V_UVLO,
CE = LOW
1 1.5 mA
V_VCC > V_SRN, V_VCC > V_VCCLOWV,
I_AC
Adapter supply current into VCC pin CE = HIGH, charge done
2
5 mA
V_VCC > V_SRN, V_VCC > V_VCCLOWV,
CE = HIGH, Charging, Qg_total = 20 nC,
V_VCC = 20 V
25
mA
4
Submit Documentation Feedback
Product Folder Link(s): bq24640
Copyright © 2010, Texas Instruments Incorporated