Current setting initialization node to program the maximum LED drive current. REF Internal voltage reference output or decoupling pin. 8 FB
The SN51DP is engineered for efficiency in tight spaces, typically housed in an or MSOP-10 package. Specification Details Type LED Driver / Power Management IC Package 10-pin SSOP / MSOP Applications LCD TV & Monitor Backlighting, DC Motor Control Max Operating Temp Up to 85°C Compliance RoHS Compliant Pinout Configuration
Controls an external N-channel MOSFET, which in turn controls the switching current through the inductor to boost the voltage. sn51dp datasheet pdf
Compensation node for the error amplifier loop stability. Pin 9 (OVP): Over-Voltage Protection input terminal.
Overvoltage Protection (OVP) and Electrostatic Discharge (ESD) shielding Troubleshooting Backlight Failures Current setting initialization node to program the maximum
: Check if the switching MOSFET connected to Pin 3 (GATE) has shorted out or failed.
The SN51DP is suitable for a wide range of applications, including: Specification Details Type LED Driver / Power Management
The following voltage measurements were taken from a working SN51DP in a PPTV 40C2 power supply board . These readings can be valuable references for diagnosing a non-functional backlight.
This table is non-negotiable. It lists voltage, current, and temperature limits that, if exceeded—even for a microsecond—can destroy the device.
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In the world of power electronics and embedded system design, few components offer the blend of ruggedness, simplicity, and versatility as the Darlington transistor array. Among the various members of this component family, the stands out as a reliable workhorse for driving high-current, high-voltage loads from low-power logic circuits.