Hi-Power Controller

ac dc controller

Leadtrend is committed to the vision of "Green your power, green the world", and provides high-performance and high-quality AC-DC application solutions with innovative technologies. High-power application products include power factor correction, integrated PFC+QR flyback controller, and LLC resonant controller which have different designs to meet various power supply design requirements.

Transition Mode PFC Controller

Part No. Start-Up (µA) UVLO ON (V) UVLO OFF (V) Driving Cap. (mA) Switching Freq.(KHz) Protection LEB (ns) Package Application
OVP OLP BNO OTP
LD7593AA/AB 1 16.0 8.5 700 Variable Auto - - Inter.(Auto) 350 SOT-26 TV, Monitor
LD7593DA 1 12.0 8.5 700 Variable Auto - - Inter.(Auto) 350 SOP-8 TV, Monitor
LD7597 1 12.0 7.5 +500/-800 Variable Auto - Auto Inter.(Auto) 300 SOP-8 LED Lighting
LD7597A 1 12.0 7.5 +500/-800 Variable Auto - Auto Inter.(Auto) 300 SOP-8 Lighting, Charger
LD7597B 1 12.0 7.5 +500/-800 Variable Auto - Auto Inter.(Auto) 300 SOP-8 Lighting, Charger

PFC with QR Controller

Part No. HV Current Source for VCC Startup (mA) UVLO OFF (V) Driving Cap. (mA) Switching Freq.(KHz) Protection LEB (ns) Package Application
OCP OVP OLP Ext. OTP BNO
LD7793B 3 8 500/-1000 (PFC) 700/-1000 (Flyback) 350/100 Auto Auto Auto Auto Yes 300/350 SOP-16 TV, Monitor,Adaptor
LD7798KD 3.0 8.0 550/-1000 (PFC) 350/-1000 (Flyback) 400/130 Auto Latch Auto Latch Yes 400/275 SOP-16 PD,Adaptor
LD7798OD 3 8 550/-1000 (PFC) 350/-1000 (Flyback) 400/130 Auto Latch Auto Latch Yes 300/275 SOP-16 PD,Adaptor

AHB Controller

Part No. HV Current Source for VCC Startup (mA) UVLO OFF (V) Driving Cap. (mA) Switching Freq.(KHz) Protection HWC Package Application
OCP OVP OLP Ext. OTP BNO
LD7710 3 10.1 500/-2000 300 Auto /Latch Auto /Latch Auto /Latch Auto /Latch Yes Yes SOP-16 PD,Adaptor

PFC with LLC Controller

Part No. HV Current Source for VCC Startup (mA) UVLO ON (V) UVLO OFF (V) Driving Cap. (mA) Switching Freq.(KHz) Protection HWC Package Application
OCP OVP & UVP OLP Ext. OTP BNO Ext. PRO
LD7771 1.5 25 13.4 1000/-1500 300/300 Auto /Latch Auto/Latch & Auto/Latch Auto /Latch NA Yes Auto /Latch Yes SOP-16 TV, Monitor, Adaptor, Networking
LD7771F 1.5 25 13.4 1000/-1500 300/300 Auto /Latch Auto/Latch & NA Auto /Latch Latch/ Stop Switching Yes Auto /Latch Yes TSSOP-20, SOP-20 TV, Monitor, Adaptor, Networking
LD7771T 1.5 25 13.4 1000/-1500 300/300 Auto /Latch Auto/Latch & NA Auto /Latch NA Yes Auto /Latch Yes TSSOP-20, SOP-20 TV, Monitor, Adaptor, Networking

Interleaved Transition Mode PFC Controller

Part No. Start-Up (µA) UVLO ON (V) UVLO OFF (V) Driving Cap. (mA) Switching Freq.(KHz) Protection HWC Package Application
OVP OLP BNO OTP
LD7580R 35 12 8.5 +700/-1200 Variable Auto - Auto Inter.(Auto) Yes SOP-16 TV, Monitor

Transition Mode PFC Controller

Part No. Start-Up (µA) UVLO ON (V) UVLO OFF (V) Driving Cap. (mA) Switching Freq.(KHz) Protection LEB (ns) Package Application
OVP OLP BNO OTP
LD7593DA 1 12.0 8.5 700 Variable Auto - - Inter.(Auto) 350 SOP-8 TV, Monitor
LD7597B 1 12.0 7.5 +500/-800 Variable Auto - Auto Inter.(Auto) 300 SOP-8 Lighting, Charger

PFC with QR Controller

Part No. HV Current Source for VCC Startup (mA) UVLO OFF (V) Driving Cap. (mA) Switching Freq.(KHz) Protection LEB (ns) Package Application
OCP OVP OLP Ext. OTP BNO
LD7797BD 3.0 8.0 15/-150 (PFC) 15/-150 (Flyback) 400/200 Auto Latch Auto Latch Yes 300/275 SOP-16 PD,Adaptor
LD7798KD 3.0 8.0 550/-1000 (PFC) 350/-1000 (Flyback) 400/130 Auto Latch Auto Latch Yes 400/275 SOP-16 PD,Adaptor

AHB Controller

Part No. HV Current Source for VCC Startup (mA) UVLO OFF (V) Driving Cap. (mA) Switching Freq.(KHz) Protection HWC Package Application
OCP OVP OLP Ext. OTP BNO
LD7710 3 10.1 500/-2000 300 Auto /Latch Auto /Latch Auto /Latch Auto /Latch Yes Yes SOP-16 PD,Adaptor

PFC with LLC Controller

Part No. HV Current Source for VCC Startup (mA) UVLO ON (V) UVLO OFF (V) Driving Cap. (mA) Switching Freq.(KHz) Protection HWC Package Application
OCP OVP & UVP OLP Ext. OTP BNO Ext. PRO
LD7771 1.5 25 13.4 1000/-1500 300/300 Auto /Latch Auto/Latch & Auto/Latch Auto /Latch NA Yes Auto /Latch Yes SOP-16 TV, Monitor, Adaptor, Networking
LD7771F 1.5 25 13.4 1000/-1500 300/300 Auto /Latch Auto/Latch & NA Auto /Latch Latch/ Stop Switching Yes Auto /Latch Yes TSSOP-20, SOP-20 TV, Monitor, Adaptor, Networking
LD7771T 1.5 25 13.4 1000/-1500 300/300 Auto /Latch Auto/Latch & NA Auto /Latch NA Yes Auto /Latch Yes TSSOP-20, SOP-20 TV, Monitor, Adaptor, Networking
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