CAT3637HV3-GT2 Datasheet, PDF (2/14 Pages) ON Semiconductor – 6-Channel Programmable High Efficiency Quad-Mode LED Driver

CAT3637
ABSOLUTE MAXIMUM RATINGS
Parameter
VIN, LEDx, C1±, C2± voltage
VOUT Voltage
EN/SET Voltage
Storage Temperature Range
Junction Temperature Range⁽¹⁾
Lead Temperature
Rating
Unit
6
V
7
V
VIN + 0.7V
V
-65 to +160
°C
-40 to +150
°C
300
°C
RECOMMENDED OPERATING CONDITIONS
Parameter
VIN
Ambient Temperature Range⁽¹⁾
I_LED per LED pin
Total Output Current
Range
Unit
2.5 to 5.5
V
-40 to +85
°C
0 to 30
mA
0 to 180
mA
ELECTRICAL OPERATING CHARACTERISTICS
(over recommended operating conditions unless specified otherwise) V_IN = 3.6V, EN = High, T_AMB = 25°C
Symbol Name
Conditions
Min Typ Max Units
I_Q
Quiescent Current
1x mode, V_IN = 4.2V
1.33 x mode, V_IN = 3.3V
1.5x mode, V_IN = 2.8V
2x mode, V_IN = 2.5V
1.5
mA
2.8
mA
3.7
mA
3.8
mA
I_QSHDN Shutdown Current
V_EN = 0V
1
µA
I_LED-ACC LED Current Accuracy
2mA ≤ I_LED ≤ 30mA
±3
%
I_LED-DEV LED Channel Matching
I_LED − I_LEDAVG
I_LED
±1
%
1x mode, I_OUT = 120mA
0.5
Ω
R_OUT Output Resistance (open loop)
1.33x mode, I_OUT = 120mA
1.5x mode, I_OUT = 120mA
3.5
3.5
Ω
Ω
2x mode, I_OUT = 120mA
6
Ω
F_OSC Charge Pump Frequency
1.33x and 2x mode
1.5x mode
0.6 0.8 1.1 MHz
0.8 1.1 1.4 MHz
I_{SC_MAX} Output short circuit Current Limit
1x to 1.33x or 1.33x to 1.5x or
V_OUT < 0.5V
80
mA
LED_TH 1.5x to 2x Transition Thresholds at
any LEDx pin
150
mV
V_HYS 1.33x to 1x Transition Hysteresis
V_IN - Highest LED V_F
400
mV
T_DF
I_{IN_MAX}
Mode Transition Filter Delay
Input Current Limit
EN/DIM Pin
V_OUT > 1V
120
µs
450
mA
R_EN/DIM
V_HI
V_LO
• Internal Pull-down Resistor
• Logic High Level
• Logic Low Level
100
kΩ
1.3
V
0.4 V
T_SD
T_HYS
V_UVLO
Thermal Shutdown
Thermal Hysteresis
Undervoltage lockout (UVLO) threshold
150
°C
20
°C
2
V
Typical application circuit with external components is shown on page 1.
Notes:
(1) Package thermal resistance is below 50°C/W when mounted on FR4 board.
Doc. No. MD-5033 Rev. C
2
© 2008 SCILLC. All rights reserved.
Characteristics subject to change without notice