ACTIVE
STR3A461HL
Package : DIP8
RoHS : YES
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.
Data Download
Design Support
- Technical Documents
- Related Information
Technical Documents
Related Information
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 |
| Automotive Qualified | NO |
Typical Application
Block Diagram
Pin Configuration Definitions
Physical Dimensions
Selection Guide
STR3A46xHL/HDL Series| Products | VDSS | RON | POUT (Open Frame) | OVP, TSD |
|---|---|---|---|---|
| STR3A461HDL | 700V | 4.2Ω | 26W | Auto-restart |
| STR3A461HL | 4.2Ω | 26W | Latched shutdowon | |
| STR3A462HDL | 3.2Ω | 30W | Auto-restart | |
| STR3A463HDL | 2.2Ω | 34W | Auto-restart |
Questions or Comments?
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