製品概要
概要
The PM7050A is a smart device that integrates a high-side and low-side MOSFET, and a high performance driver with integrated bootstrap FET. The PM7050A offers high accuracy current and temperature monitors that can be provided to the controller of a multiphase DC/DC system. They simplify design and increase performance by eliminating the DCR sensing network and associated thermal compensation. An industry leading, thermally enhanced, 4 x 5 mm package allows minimal overall PCB real estate and low profile construction.
The device features a 3.3 V compatible tri-state PWM input that, together with multiphase controllers, provides a robust solution in the event of abnormal operating conditions. The PM7050A also integrates UVLO monitoring and fault protections such as overtemperature, overcurrent and HS MOSFET short failures.
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特徴
- Input range: 4.5 V to 18 V
- Supports 50 A DC current
- Compatible with 3.3 V tri-state PWM
- Down slope current sensing
- ± 3 % accuracy current monitor (IMON) with REFIN input
- 8 mV /°C temperature monitor with OT flag
- Dedicated low-side FET control input
- Fault protection:
- High-side FET short and overcurrent protection
- Overtemperature protection
- VCC and VIN undervoltage lockout (UVLO)
- Open drain fault reporting output
- Up to 2 MHz switching frequency
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STマイクロエレクトロニクス - PM7050A
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