This SCM1212A (in SOT23-5 format) is functionally the same as the SCM1201A (in SOT23-6 format) except for format compatibility, so the chip meets the market demand for different pin formats.
The SCM1212A features a geminated power MOS and can operate at a low input voltage as low as 4.5VDC without being damaged by a high input voltage of 40VDC. The internal power MOS exhibits high conduction symmetry, thus reducing the degree of bias in the push-pull topology.
The chip incorporates three key technologies:
1. Soft-start function. This prevents damage caused by high current during startup and ensures normal startup under full load in DC charging mode.
2. Output short-circuit protection. This protection is highly consistent and unaffected by parameter deviations during power processing or by high and low temperature test conditions.
3. Over-temperature protection. When the specified temperature range is exceeded, the chip automatically enters a sleep state and automatically resumes operation when the temperature drops back to the set value.
It can be used in isolated power supplies, industrial process control, isolated communication power, medical equipment, telecommunications equipment, and other fields.
Product Features
● Input voltage range of 4.5~8VDC.
● Integrated geminated power semiconductor MOS.
● High symmetry conduction by MOS.
● Built-in soft start.
● Short circuit protection at the output.
● Over-temperature protection.
● Operating junction temperature: -40~+125°C.
● Providing a suitable transformer (TTB05xx-1T series recommended) to complete the circuit.
