SD6835 650V 7A Power Switch IC | DIP-8 | Silan Microelectronics

SD6835 – Current Mode PWM+PFM Controller with Integrated High-Voltage MOSFET for SMPS Applications

The SD6835 is a high-performance current-mode PWM + PFM controller designed for switch mode power supplies (SMPS). Featuring an integrated high-voltage MOSFET and external sense resistor configuration, it delivers efficient and reliable power conversion in a compact design.

Optimized for low standby power and low startup current, the SD6835 automatically enters burst mode operation during light-load or standby conditions to minimize power dissipation. Its load-dependent switching frequency ranges from 25 kHz to 67 kHz, ensuring high efficiency across varying loads. Additionally, a built-in frequency jitter function helps reduce electromagnetic interference (EMI), improving overall system compliance.

Key Features:

• Integrated high-voltage MOSFET for compact, cost-effective SMPS designs

• Current-mode PWM + PFM control for enhanced efficiency

• Low standby power with burst mode operation

• Low startup current for faster system response

• Switching frequency: 25–67 kHz (load-dependent)

• Frequency jitter technology for reduced EMI

Ideal for use in adapters, chargers, and standby power supplies, the SD6835 offers an excellent balance of efficiency, EMI performance, and cost-effectiveness for modern low-power SMPS designs.