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- Quasi-Resonant Power Supply ICs
Quasi-Resonant Power Supply ICs
▼MS1003SH/1004SH/1007SH
Realize standby power reduction
high efficiency, and low noise
Realize standby power reduction
high efficiency, and low noise
MS1003SH/1004SH/1007SH
■Standby power improvement function
■Allows for easier efficiency improvement, and noise countermeasures
■Timer latch overcurrent protection
■Allows for easier efficiency improvement, and noise countermeasures
■Timer latch overcurrent protection
Easier to efficiency improvement, and noise countermeasures
Allows for easier efficiency improvement, and noise countermeasures through control of oscillation frequency under light load and reduction of switching loss.
Timer latch overcurrent protection
When entering an overloaded state, the output voltage drop time will be counted for approximately 2 seconds, and then a latch stop will occur.
Can reduce standby power
2 types of standby function can reduce standby power.
| Standby mode | Features | AC100V input | AC200V input |
|---|---|---|---|
| Auto burst | Can reduce standby power without any additional components. | 59.1mW | 62.0mW |
| Super standby | Can reduce standby power by switching to feedback control via the primary side control coil. | 29.8mW | 33.0mW |
※Input power at no load
Product Specifications
| MS1003SH | MS1004SH | MS1007SH NEW |
|
|---|---|---|---|
| Package | SOP8/7J | ||
| HV Startup | 〇 | ||
| Standby function | Auto | ||
| Standby mode | Super standby | ー | |
| Bottom skip function | 1 time | 2 time | 1 time |
| Overcurrent protection |
Timer latch (2sec) |
Automatic recovery | |
| Soft start function | 〇 | ||
| Overcurrent input correction | 〇 | ||
