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Secondary side feedback（SSR）

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AC-DC power management chip

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The AC-DC power management chip product line of Yacheng Micro covers functional products such as primary side feedback, secondary side feedback, synchronous rectification, etc. It achieves fast current switching and control through built-in or external power devices, and the entire product line meets the sixth level energy efficiency standard.

Secondary side feedback（SSR）

Part Number Built - in Power Transistor Package Typical Power(W)/Max(W) Functional characteristics
RM6555CH 700V/650mΩ（VDMOS） TO220F-6L 75W/270W Integrated Input Overvoltage & Undervoltage Protection，QR Quasi-Resonant，Valley Lockout
RM6550SD Extrapolation SOP8 120W/120W Integrated Input Overvoltage & Undervoltage Protection，QR Quasi-Resonant，Valley Lockout
RM6550TL Extrapolation SOT23-6 120W/120W Integrated Input Overvoltage & Undervoltage Protection，QR Quasi-Resonant，Valley Lockout
RM6550T Extrapolation SOT23-6 120W/120W Integrated Input Overvoltage & Undervoltage Protection，QR Quasi-Resonant，Valley Lockout
RM6527DHE 650V/1K2(VDMOS) DIP8 30W/36W Integrated GaN，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz，QR Quasi-Resonant
RM6527DHE 650V/1K2(VDMOS) DIP8 30W/36W Integrated GaN，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz，QR Quasi-Resonant
RM6526DHE 650V/1K8(VDMOS) DIP8 24W/30W Integrated High-Voltage MOSFET，Ultra-Wide VCC Voltage Tolerance，QR Quasi-Resonant，Fixed Frequency at 65kHz
RM6524SAE 650V/1K0(SJ) SOP7 20W/25W Integrated High-Voltage MOSFET，Ultra-Wide VCC Voltage Tolerance，QR Quasi-Resonant，Fixed Frequency at 65kHz
RM6523SAE 650V/1K8(SJ) SOP7 20W/25W Integrated High-Voltage MOSFET，Ultra-Wide VCC Voltage Tolerance，QR Quasi-Resonant，Fixed Frequency at 65kHz
RM6524SE 650V/1K0(SJ) SOP8 20W/25W Integrated High-Voltage MOSFET，Ultra-Wide VCC Voltage Tolerance，QR Quasi-Resonant，Fixed Frequency at 65kHz
RM6527AS 650V/650(SJ) ASOP6 30W/33W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz
RM6522SAH 650V/2K4(VDMOS) SOP7 18W/24W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz
RM6520SDE Extrapolation SOP8 120W/120W Integrated High-Voltage Start-Up，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance
RM6520SE Extrapolation SOP8 120W/120W External-Drive Power MOSFET，Ultra-Wide VCC Voltage Tolerance，Quasi-Resonant QR Mode
RM6520TE Extrapolation SOT23-6 120W/120W External-Drive Power MOSFET，Ultra-Wide VCC Voltage Tolerance，Quasi-Resonant QR Mode
RM6534S 650V/1K0(SJ) SOP8 20W/25W Secondary-Side Feedback，Integrated High-Voltage MOSFET，Ultra-Wide VCC Voltage Tolerance
RM6534SL 650V/1K3(SJ) SOP8 20W/22W Secondary-Side Feedback，Integrated High-Voltage MOSFET，Ultra-Wide VCC Voltage Tolerance
RM6533S 650V/1K8(SJ) SOP8 18W/20W Secondary-Side Feedback，Integrated High-Voltage MOSFET，Ultra-Wide VCC Voltage Tolerance
RM6522SA 650V/3K0(VDMOS) SOP7 15W/18W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz
RM6526D 650V/1K6(VDMOS) DIP7 25W/30W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz
RM6524D 650V/2K2(VDMOS) DIP7 18W/20W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz
RM6523D 650V/3K0(VDMOS) DIP7 20W/25W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz
RM6522D 650V/4K0(VDMOS) DIP7 12W/15W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz
RM6524SAL 650V/950(SJ) SOP7 20W/25W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance
RM6524SA 650V/950(SJ) SOP7 20W/25W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz
RM6523SAL 650V/1K8(SJ) SOP7 20W/25W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance
RM6523SAH 650V/1K3(SJ) SOP7 20W/25W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz
RM6523SA 650V/1K8(SJ) SOP7 20W/25W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz
RM6523SL 650V/1K8(SJ) SOP8 20W/25W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance
RM6524SL 650V/950(SJ) SOP8 20W/25W Integrated High-Voltage MOSFET，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance
RM6528NS 650V/800(GaN) ESOP8 20W/25W Integrated GaN，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz，QR Quasi-Resonant
RM6524ND 650V/480(GaN) DFN5*6 35W/45W Integrated GaN，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz，QR Quasi-Resonant
RM6522ND 650V/260(GaN) DFN8*8 60W/65W Integrated GaN，Ultra-Wide VCC Voltage Tolerance，Maximum Operating Frequency of 100kHz，QR Quasi-Resonant
RM6520SDQ Extrapolation SOP8 120W/120W Integrated High-Voltage Start-Up，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance
RM6520NDQ GaN Extrapolation SOP8 120W/120W Integrated High-Voltage Start-Up，Quasi-Resonant QR Mode，Ultra-Wide VCC Voltage Tolerance
RM6520SL Extrapolation SOP8 120W/120W External-Drive Power MOSFET，Ultra-Wide VCC Voltage Tolerance，Quasi-Resonant QR Mode
RM6520TN GaN extrapolation SOT23-6 120W/120W External-Drive Power MOSFET，Ultra-Wide VCC Voltage Tolerance，Quasi-Resonant QR Mode
RM6520TL Extrapolation SOT23-6 120W/120W External-Drive Power MOSFET，Ultra-Wide VCC Voltage Tolerance，Quasi-Resonant QR Mode
RM6520T SJ Extrapolation SOT23-6 120W/120W External-Drive Power MOSFET，Ultra-Wide VCC Voltage Tolerance，Quasi-Resonant QR Mode
RM6520S SJ extrapolation SOP8 120W/120W External-Drive Power MOSFET，Ultra-Wide VCC Voltage Tolerance，Quasi-Resonant QR Mode