FSDH0370RNB

On Time (Max) :
Off Time (Max) :
Operating Supply Voltage :
Maximum Operating Temperature : + 85 C
Number of Outputs : 1
Mounting Style : Through Hole
On Resistance (Max) : 4 Ohms
Supply Current (Max) : 3 mA
Package / Case : PDIP-8


Features:

·Internal Avalanche Rugged 700V Sense FET
·Consumes only 0.8W at 230 VAC & 0.5W load with
·Burst-Mode Operation
·Frequency Modulation for EMI Reduction
·Precision Fixed Operating Frequency, 100kHz
·Internal Start-up Circuit and Built-in Soft Start
·Pulse-by-Pulse Current Limiting and Auto-Restart Mode
·Over Voltage Protection (OVP), Over Load Protection (OLP), Internal Thermal Shutdown Function (TSD)
·Under Voltage Lockout (UVLO)
·Low Operating Current (3mA)
·Adjustable Peak Current Limit


Application

·Auxiliary Power Supply for PC and Server
·SMPS for VCR, SVR, STB, DVD & DVCD Player
·SMPS for Printer, Facsimile & Scanner
·Adapter for Camcorder


Pinout




Specifications

Characteristic		Symbol	Value	Unit
Drain Pin Voltage		VDRAIN	700	V
Vstr Pin Voltage		VSTR	700	V
Drain Current Pulsed5	FSDH0170RNB	IDM	4	A
	FSDH0270RNB	IDM	8	A
	FSDH0370RNB	IDM	12	A
Single Pulsed Avalanche Energy6	FSDH0170RNB	EAS	50	mJ
	FSDH0270RNB	EAS	140	mJ
	FSDH0370RNB	EAS	230	mJ
Supply Voltage		VCC	20	V
Feedback Voltage Range		VFB	-0.3 to VCC	V
Total Power Dissipation		PD	1.5	W
Operating Junction Temperature		TJ	Internally limited	°C
Operating Ambient Temperature		TA	-25 to +85	°C
Storage Temperature		TSTG	-55 to +150	°C

Description

The FSDH0170RNB/FSDH0270RNB/FSDH0370RNB consists of an integrated current mode Pulse Width Modulator (PWM) and an avalanche rugged 700V Sense FET. FSDH0170RNB/FSDH0270RNB/FSDH0370RNB are specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external components. The integrated PWM controller features include: a fixed oscillator with frequency modulation for reduced EMI, Under Voltage Lock Out (UVLO) protection, Leading Edge Blanking (LEB), an optimized gate turn-on/ turn-off driver, Thermal Shut Down (TSD) protection, and temperature compensated precision current sources for loop compensation and fault protection circuitry. Compared to a discrete MOSFET and controller or RCC switching converter solution, the FSDH0170RNB/FSDH0270RNB/FSDH0370RNB reduces total component count, design size, and weight while increasing effi-ciency, productivity, and system reliability. These devices provide a basic platform that is well suited for the design of cost-effective flyback converters, as in PC auxiliary power supplies.