CAT3224 Datasheet, PDF (3/13 Pages) ON Semiconductor – 4 Amp Supercapacitor Flash LED Driver

CAT3224
Table 5. ELECTRICAL OPERATING CHARACTERISTICS (V_IN = 3.6 V, EN = 1.3 V, T_AMB = 25°C unless otherwise stated.)
Symbol
Name
Conditions
Min Typ Max Units
I_QVIN
Quiescent Current on VIN pin (I_IN – 2 x I_OUT)
CAP Charged & idle
CAP Charging 2x Mode
80
mA
6
mA
I_QCAP
Quiescent Current on CAP pin
CAP Charged & idle
Shutdown mode
10
mA
3
mA
Shutdown, VIN = 0 V
3
mA
I_QSHDN
G_FLASH
G_TORCH
G_CHARGE
V_RX
I_{RX_MAX}
I_{IN_MAX}
V_{C_OFF}
V_{C_HYST}
V_{F_ON}
V_{F_HYST}
R_LEDAB
R_CP
Shutdown Current
Flash Gain (I_FLASH / I_RF)
Torch Gain (I_TORCH / I_RT)
Input Current Limit Gain (I_CHRG / I_RC)
RSET Regulated Voltage (V_RF V_RT V_RC)
Rset Current limit (I_RF I_RT I_RC)
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
Charge Mode Resistance
F_OSC
T_FLASH
V_FLAG
R_EN
V_EHI
V_ELO
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
CHRG = FLASH = TORCH = 0 V
1
mA
I_FLASH = 2 A
I_TORCH = 200 mA
I_CHARGE = 400 mA
I_RX = 0.1 mA
V_RX = 0 V
V_RC = 0 V
R_C = 2 kW
900
120
400
0.59 0.6 0.61
V
3.5
mA
1.4
A
5.4
V
0.2
V
5.2
V
0.2
V
I_FLASHAB = 4 A
1x mode
110
mW
2
W
2x mode, V_IN = 3.5 V
4
W
800
kHz
300
ms
FLAG Driven low 100 mA pull−up
0.2
V
150
kW
1.3
V
0.4
V
V_BAL
T_SD
T_HYS
V_UVLO
Active Balance Control (VCAP / 2)
Thermal Shutdown
Thermal Hysteresis
Undervoltage lockout (UVLO) threshold
±5 mA Load on BAL
−2
+2
%
150
°C
20
°C
1.9
V
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