CAT3224HV3-GT2 Datasheet, PDF (3/14 Pages) ON Semiconductor – 4 Amp Supercapacitor Flash LED Driver

CAT3224
ELECTRICAL OPERATING CHARACTERISTICS
V_IN = 3.6V, EN = 1.3V, T_AMB = 25°C unless otherwise stated.
Symbol Name
IQVIN Quiescent Current on VIN pin (IIN – 2 x IOUT)
IQCAP Quiescent Current on CAP pin
IQSHDN
GFLASH
GTORCH
GCHARGE
VRX
IRX_MAX
IIN_MAX
VC_OFF
VC_HYST
VF_ON
VF_HYST
RLEDAB
Shutdown Current
Flash Gain (IFLASH / IRF)
Torch Gain (ITORCH / IRT)
Input Current Limit Gain (ICHRG / IRC)
RSET Regulated Voltage (VRF VRT VRC)
Rset Current limit (IRF IRT IRC)
Input current limit in charge mode
CAP Charge off voltage
CAP Charge Hysteresis
CAP voltage FLAG pulled low
CAP voltage FLAG Hysteresis
LEDA/B Combined Dropout Resistance
RCP Charge Mode Resistance
FOSC
TFLASH
VFLAG
REN
VEHI
VELO
VBAL
TSD
THYS
VUVLO
Charge Pump Frequency
Flash Timeout Duration
Flag low voltage threshold (Open Drain)
CHRG, FLASH, TORCH Pin
• Internal Pull-down Resistor
• Logic High Level
• Logic Low Level
Active Balance Control (VCAP / 2)
Thermal Shutdown
Thermal Hysteresis
Undervoltage lockout (UVLO) threshold
Conditions
Min Typ Max Units
CAP Charged & idle
80
µA
CAP Charging 2x Mode
6
mA
CAP Charged & idle
10
µA
Shutdown mode
3
µA
Shutdown, VIN = 0V
3
µA
CHRG=FLASH=TORCH=0V
1 µA
IFLASH = 2A
900
ITORCH = 200mA
120
ICHARGE = 400mA
400
IRX = 0.1mA
0.59 0.6 0.61 V
VRX = 0V
3.5
mA
VRC = 0V
1.4
A
RC = 2kΩ
5.4
V
0.2
V
5.2
V
0.2
V
IFLASHAB = 4A
110
mΩ
1x mode
2
Ω
2x mode, VIN = 3.5V
4
Ω
800
kHz
300
ms
FLAG Driven low 100uA pull-up
0.2 V
± 5mA Load on BAL
150
kΩ
1.3
V
0.4 V
-2
+2 %
150
°C
20
°C
1.9
V
© 2009 SCILLC. All rights reserved.
3
Characteristics subject to change without notice
Doc. No. MD-5043 Rev. A