ACTIVE

STR3A461HL

The STR3A46xHL/HDL series are power ICs for switching power supplies, incorporating a power MOSFET and a current mode PWM controller IC.
The low standby power is accomplished by the automatic switching between the PWM operation in normal operation and the burst-oscillation under light load conditions. The product achieves high cost-performance power supply systems with few external components.

Features

    • Pb-free
    • Low Thermal Resistance Package
    • Improving circuit efficiency
      (Since the step drive control can keep VRM of secondary rectification diodes low, the circuit efficiency can be improved by low VF)
    • Noise Reduction
    • Current Mode Type PWM Control
    • Soft Start Function
    • Automatic Standby Function
       No Load Power Consumption < 15mW
    • Operation Mode
       Normal Operation PWM Mode
       Light Load Operation Green-Mode
       Standby Burst Oscillation Mode
    • Random Switching Function
    • Slope Compensation Function
    • Leading Edge Blanking Function
    • Bias Assist Function
    • Protections
       Overcurrent Protection (OCP)
       Overload Protection (OLP)
       Overvoltage Protection (OVP)
       Thermal Shutdown (TSD)

Application

    • AC/DC adapter
    • White goods
    • Other SMPS

Specifications

Control Method PWM
Type Power IC
Output Current 26 W
RDS(ON) (max.) 4.200 Ω
VDSS (min.) 700 V
VCC (max.) 32 V
Oscillating Frequency(typ.) 100 kHz
OCP YES
OLP Auto Restart
OVP Latch
Brown-in / out NO
TSD Latch
Power Consumption at No Load <15mW
Package Weight (Typ.) 0.51 g

Typical Application

Typical Application

Block Diagram

Block Diagram

Pin Configuration Definitions

Pin Configuration Definitions

Physical Dimensions

Physical Dimensions

Selection Guide

STR3A46xHL/HDL Series
ProductsVDSSRONPOUT
(Open Frame)
OVP, TSD
STR3A461HDL700V4.2Ω26WAuto-restart
STR3A461HL4.2Ω26WLatched shutdowon
STR3A462HDL3.2Ω30WAuto-restart
STR3A463HDL2.2Ω34WAuto-restart

Questions or Comments?

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