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RT7755GEK Datasheet Pwm Controller

Manufacturer: Richtek

Overview: RT7755GEK PWM Controller for Programmable Power Converter (USBPD).

General Description

The RT7755GEK series is specifically designed to work with controllers, such as the RT7206, to provide a total solution for USB PD or a programmable power adapter.

This RT7755GEK not only provides a high power efficiency control scheme, but also gives a 50mW very low standby power control under 5V standby condition.

The RT7755GEK is such a special design to achieve a wide-range of output voltage by utilizing several innovations, including (1) By using DMAG pin, the RT7755GEK senses output voltage to adjust loop gain for system stability, to adjust output over-voltage protection threshold voltage to protect external devices, and to adjust current limit to meet Limited Power Source (LPS) safety requirements;

Key Features

  • including bulk-capacitor brown-in/brown-out protection, VDD over-voltage protection (VDD OVP), output overvoltage/under-voltage protection (Output OVP/UVP), secondary rectifier short-circuit protection (SRSP), and external over-temperature protection (External OTP); (3) For constant output power regulation, a resistor connected to CS pin can be used to achieve accurate line compensation across the universal input voltage range; and (4) The RT7755GEK also provides various features to protect aga.

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RT7755GEK Distributor