STR6A169HZ
STR6A169HZ is Off-Line PWM Controllers manufactured by Sanken.
- Part of the STR6A100HZ comparator family.
- Part of the STR6A100HZ comparator family.
Description
The STR6A100HZ series are power ICs for switching power supplies, incorporating a MOSFET and a current mode PWM controller IC.
To enhance efficiency in all load ranges, the IC automatically shifts its operation to the green mode or burst oscillation mode, depending on the load.
The product achieves high cost-performance power supply systems with few external ponents.
Features
- 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)
- Current Mode Type PWM Control
- Brown-in and Brown-out Function
- No Load Power Consumption, PIN < 25m W
- Automatically changed operation mode in response to load conditions
- Fixed switching frequency mode, 100 k Hz (typ.) in normal operation.
- Green mode, 25 k Hz (typ.) to 100 k Hz (typ.) in middle to light load.
- Burst oscillation mode in light load.
- Random Switching Function
- Slope pensation Function
- Leading Edge Blanking Function
- Bias Assist Function
- Protections
- Two Types of Overcurrent Protection (OCP): Pulse-by-Pulse, built-in pensation circuit to minimize OCP point variation on AC input voltage
- Overload Protection with timer (OLP): Ato restart
- Overvoltage Protection (OVP): Latch shutdown
- Thermal Shutdown (TSD): Latch shutdown
Typical Application
Package
DIP8
Not to Scale.
Selection Guide
- Electrical Characteristics f OSC(AVG) = 100 k Hz
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- Output Power, POUT-...
