Sn51dp Datasheet Verified «1000+ PREMIUM»
Over-Voltage Protection Sense Pin (Monitors boost voltage outputs via a resistor divider) GND System Ground Reference 5 CS
The is a high-performance LED backlight driver IC , commonly used in the power supply or scaler boards of modern LED TVs to control the brightness and efficiency of the display panel. The Story of the SN51DP: Reviving a VU LED TV
In a typical display board, the SN51DP operates within a boost converter topology. It samples the current coming back from the LED strings via the Feedback (FB) pin and switches the external MOSFET at high frequencies to maintain consistent illumination. Common Failure Modes sn51dp datasheet verified
is a specialized integrated circuit (IC) primarily used as a backlight driver for LED TVs
It is designed to handle high-speed, precise pulse width modulation tasks, ensuring low jitter operation. The IC is frequently packaged in an (Small Outline Package) or MSOP-10 format, making it ideal for compact PCB designs. Key Features of the SN51DP High-Speed PWM: Designed for precision PWM control systems. Programmable Resolution: Supports up to 8-bit resolution. Common Failure Modes is a specialized integrated circuit
The is a dedicated PWM (Pulse Width Modulation) Controller IC specifically designed for driving LED backlights in liquid crystal displays (LCD) and LED televisions. It is frequently used in TV power supply boards (scaler boards) to control the high-voltage boost converter that powers the backlight strips.
Main Input Power Supply (Typically accepts localized system rail distribution up to 12V) GATE Programmable Resolution: Supports up to 8-bit resolution
Often includes Over-Voltage Protection (OVP) and Thermal Shutdown to protect LED arrays. Pinout Configuration (SOP-10)
If testing reveals a voltage stuck near the input level (e.g., approximately 25V instead of a boosted 60V–100V), the driver IC is likely failing to pulse the MOSFET gate.
Constant current backlight driving for LCD monitors and laptop screens. Lighting Control: Precision dimming for LED lamps.