CAT3612 Datasheet, PDF (2/13 Pages) Catalyst Semiconductor – Programmable 300mA Camera Flash LED Driver

CAT3612
ABSOLUTE MAXIMUM RATINGS
Parameter
VIN, LED1, LED2 voltage
VOUT, C1±, C2± voltage
EN/DIM voltage
Storage Temperature Range
Junction Temperature Range
Lead Temperature
Rating
Unit
6
V
7
V
VIN + 0.7V
V
-65 to +160
°C
-40 to +125
°C
300
°C
RECOMMENDED OPERATING CONDITIONS
Parameter
VIN
Ambient Temperature Range
I_LED per LED pin
Total Output Current
Range
Unit
3 to 5.5
V
-40 to +85
°C
0 to 150
mA
0 to 300
mA
Typical application circuit with external components is shown on page 1.
ELECTRICAL OPERATING CHARACTERISTICS
(over recommended operating conditions unless specified otherwise) VIN = 3.6V, EN = High, ambient
temperature of 25ºC.
Symbol Parameter
Conditions
Min Typ Max
I_Q
Quiescent Current
1x mode, no load
0.5
1.5x mode, no load
3
I_QSHDN Shutdown Current
V_EN = 0V
1
I_LED-ACC LED Current Accuracy
5mA ≤ I_LED ≤ 150mA
±3
I_LED-DEV LED Channel Matching
(I_LED - I_LEDAVG) / I_LEDAVG
±3
R_OUT
Output Resistance (open loop) 1x mode, I_OUT = 100mA
0.4
1.5x mode, I_OUT = 100mA
2.6
F_OSC
Charge Pump Frequency
0.8 1 1.3
I_{SC_MAX} Output short circuit Current Limit VOUT < 0.5V
60
I_{IN_MAX}
Input Current Limit
EN/DIM Pin
1x mode, VOUT > 1V
350
I_EN/DIM
V_HI
V_LO
• Input Leakage
• Logic High Level
• Logic Low Level
-1
1
1.3
0.4
T_SD
Thermal Shutdown
165
T_HYS
Thermal Hysteresis
20
V_UVLO Undervoltage lock out (UVLO)
2
Threshold
Unit
mA
mA
µA
%
%
Ω
Ω
MHz
mA
mA
µA
V
V
ºC
ºC
V
Doc. No. 5016 Rev. A
2
© 2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice