SC658ULTRT

Voltage - Output:	2.5 V ~ 5.25 V
Supplier Device Package:	14-MLPQ-UT (2x2)
Package / Case:	14-UFQFN
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Applications:	Backlight
Dimming:	--
Frequency:	250kHz
Current - Output / Channel:	25mA
Series:	SemPulse®
Voltage - Supply (Max):	5.5V
Voltage - Supply (Min):	2.9V
Number of Outputs:	4
Internal Switch(s):	Yes
Topology:	Switched Capacitor (Charge Pump)
Type:	DC DC Regulator
Part Status:	Active
Packaging:	Tape & Reel (TR)

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SC658ULTRT Application Field and Working Principle

SC658ULTRT is a PMIC – LED drivers, manufactured by Samplight Corporation. Its application area includes high-value LEDs, panel backlight applications and automotive lighting applications. It works by providing the necessary power supply to drive the LEDs and providing a high-efficiency, low-temperature, long-lasting power solution.The SC658ULTRT PMIC – LED driver is based on a wide range of device characteristics and application requirements. It has a comprehensive range of programs and control algorithms, which optimize the performance under various operating conditions. It adopts dual-independent programmable architectures and integrated, high-performance LEDs driving PWM controllers which ensure a high safety level and optimal adjustment of the LED lighting effects.The system has an on-chip thermal protection for LED display and chip temperature control, which ensures the LED life and the signal stability. The chip temperature control is effective in preventing LED damage caused by temperature excess, improving the reliability of LED lighting applications. The chip temperature detection is set at an appropriate value to guarantee the working stability of the LEDs at different temperatures.The SC658ULTRT PMIC – LED driver also has three adjustable programmable RGB LED operating modes and operates with a selectable temperature range of 0°C to 40°C. The output current is adjustable using a dedicated external resistor. At turn-off, the voltage on the output is pulled down to the safety level, ensuring that the LEDs are safely turned off.It is designed with a high-efficiency, high-performance synchronous boost regulator, which enables the circuit to drive high-current, high-efficiency LEDs with a constant-current technique. The regulator offers fast transient response and a wide adjustable output voltage range up to 6V. This is the perfect solution for driving a variety of LEDs with different characteristics, including Blue and White for backlight applications, Warm White and Cold White LEDs for automotive lighting applications, and High Intensity and Ultra-Bright LED arrays.The SC658ULTRT PMIC - LED driver also contains a latch-up and ESD protection, which minimizes the impact of device malfunctions and may help extend the life of the LED drivers. The device has a built-in fail-safe protection to ensure the LED drivers are operational even in extreme conditions. Overall, the SC658ULTRT is a reliable, high-efficiency, long-lasting LED driver that is ideal for a wide range of applications.

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