CAT4134 Datasheet, PDF (2/13 Pages) Catalyst Semiconductor – 500mA Dual Channel Movie/Flash LED Driver

CAT4134
ABSOLUTE MAXIMUM RATINGS
Parameters
SW voltage
VIN voltage
EN, FLASH, RSET, RFLASH voltage
LED1, LED2 voltage
Output Current per Channel
Storage Temperature Range
Junction Temperature Range
Lead Temperature
ESD Rating – Human Body Model (HBM)
Ratings
20
8
VIN + 0.6V
8
300
-65 to +160
-40 to +125
300
2000
Units
V
V
V
V
mA
°C
°C
°C
V
RECOMMENDED OPERATING CONDITIONS
Parameter
VIN
Ambient Temperature Range
Flash mode current per channel
Movie mode current per channel
Range
2.8 to 4.2
-40 to +85
25 to 250
5 to 50
Units
V
°C
mA
mA
ELECTRICAL OPERATING CHARACTERISTICS
Over recommended operating conditions unless specified otherwise.
V_IN = 3.6V, EN = V_IN and at ambient temperature of 25ºC.
Symbol Parameter
I_Q Quiescent Current
(not switching)
Conditions
V_LED1 > 0.5V, V_LED2 > 0.5V
I_SD Shutdown Current
I_SW Switch Current Limit
EN = 0V
Movie Mode (FLASH = Low)
Flash Mode (FLASH = High)
R_SW
I_LK
F_OSC
Switch Resistance
Switch Leakage Current
Oscillator Frequency
I_SW = 1000mA
Switch Off, V_SW = 5V
Movie Mode
Flash Mode
V_OVP
η
T_SD
T_HYST
V_UVLO
OVP pin threshold
Efficiency
Thermal Shutdown
Thermal Hysteresis
Undervoltage Lock Out
(UVLO) Threshold
V_OUT = 10V, Load = 200mA
Disabled when V_IN < V_UVLO
Min Typ Max Unit
100
250
µA
1
µA
0.5
1
A
1.7
2
0.3
0.5
Ω
5
µA
1.2
MHz
0.9
1.10 1.20 1.30
V
85
%
150
ºC
20
ºC
1.9
2.2
V
EN LOGIC CONTROL INPUT
V_SDHI
V_SDLO
I_SDBIAS
Logic High Threshold
Logic Low Threshold
Input Bias current
EN > V_SDHI Enables Device
EN = 3V
0.7
1.5
V
0.4
0.7
10
40
µA
© 2006 Catalyst Semiconductor, Inc.
2
Characteristics subject to change without notice.
Doc. No. 5021 Rev. A