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SP5518F
The SP5518F is a high-efficiency, boost-type LED driver control chip. It uses a fixed off-time control mode, with a switching frequency of up to 1MHz. The off-time can be adjusted via an external capacitor, and the LED current can be set via an external resistor.
- Product Description
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- Commodity name: SP5518F
- 封装: SOP8
- 品牌: Wuxi Silicon Power Microelectronics
The SP5518F is a high-efficiency, boost-type LED driver control chip. It uses a fixed off-time control mode, with a switching frequency of up to 1MHz. The off-time can be adjusted via an external capacitor, and the LED current can be set via an external resistor.
The SP5518F is a high-efficiency, boost-type LED driver control chip that uses a fixed off-time control mode. Its switching frequency can reach 1MHz, and the off-time can be adjusted via an external capacitor. The LED current can be set via an external resistor.
The SP5518F provides a soft-start function upon power-up and various self-recoverable protection functions, including overcurrent protection (OCP) and undervoltage lockout (UVLO).
Typical Application Diagram
Features
● Soft start upon power-up
● Built-in leading edge blanking (LEB) function
● Cycle-by-cycle current limiting protection (OCP)
● Undervoltage lockout (UVLO)
● Wide LED current range:
● Up to 90% efficiency
● 1MHz switching frequency
● Wide input voltage range: 6.5V~24V
● SOP8 lead-free package
Applications
● LCD backlight driver
● LED lighting
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