SP7601
FEATURES
- Wide Input Voltage Range 4.5V
- 29V
- 1.2MHz Constant Frequency Operation
- Low 0.2V Reference Voltage
- Adjustable Overcurrent Protection
- PWM Dimming and Power sequencing Control ..
- Ro HS pliant, Lead Free Packaging: Small 6-Pin TSOT Package DESCRIPTION
The SP7601 is a high current DC to DC Switching Buck LED Driver that features low ponent count and high efficiency due to a very low 0.2V reference voltage. High 1.2MHz switching frequency allows use of very small external ponents. The SP7601 is patible with PWM dimming up to a frequency of 1k Hz at 10% Duty Cycle. TYPICAL APPLICATION CIRCUIT
M1 L1
Cin 1 Vin
Vo / LED + up to 29V
2 Gate 6 LX D1 Rs
LED1
C1 0.1u F 3
SP7601 LEDn
VDR GND D2 5 Dimming and Power sequencing FB 4 Rf b Rset
Sept25-07 Rev D
SP7601 29V High Voltage LED Driver Page 1
© 2007 Exar Corporation
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only, and functional operation of the device at these ratings or any other above those...
