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SP7601

Part Number	SP7601
Manufacturer	Exar Corporation
Description	29V High Voltage LED Driver
Published	Jan 12, 2009
Detailed Description	SP7601 29V High Voltage LED Driver FEATURES Wide Input Voltage Range 4.5V – 29V 1.2MHz Constant Frequency Operation...
Datasheet	SP7601 PDF File

Overview

SP7601 29V High Voltage LED Driver 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 www.
DataSheet4U.
com RoHS Compliant, 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 component count and high efficiency due to a very low 0.
2V reference voltage.
High 1.
2MHz switching frequency allows use of very small external components.
The SP7601 is compatible with PWM dimming up to a frequency of 1kHz at 10% Duty Cycle.
TYPICAL APPLICATION CIRCUIT M1 L1 VIN Cin 1 Vin Vo / LED + up to 29V 2 Gate 6 LX D1 Rs LED1 GND C1 0.
1uF 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 indicated in the operation sections of the specifications below is not implied.
Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.
Input Voltage….
.
.
.
-0.
3V to 30V Lx………………………………………………….
…-2V to 30V FB……………-0.
3V to 5.
5V Storage Temperature.
.
…………….
….
.
……-65 °C to 150 °C Junction Temperature-40°C to 125°C Lead Temperature (Soldering, 10 sec)….
….
……….
.
300 °C ESD Rating……….
.
.
……1kV LX, 2kV all other nodes, HBM ELECTRICAL SPECIFICATIONS Specifications are for TAMB=TJ=25°C, and those denoted by ♦ apply over the full operating range, -40°C< Tj <125°C.
Unless otherwise specified: VIN = 4.
5V to 29V, CIN = 4.
7μF.
www.
DataSheet4U.
com PARAMETER UVLO Turn-On Threshold UVLO Turn-Off Threshold UVLO Hysteresis Operating Input Voltage Range Operating Input Voltage Range Opera...

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