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RT7791 - PWM Controller

Description

The RT7791 series is specifically designed to work with controllers, such as the RT7202, to provide a total solution for USB PD or a programmable power adapter.

The RT7791 can achieve high efficiency, meet safety standards, and consume less than 50mW of power in a 5V standby condition.

Features

  • including Bulk-Capacitor brown-in /brown-out protection, VDD over-voltage protection (VDD OVP), output over-voltage/under-voltage protection (Output OVP/UVP), secondary rectifier short-circuit protection (SRSP), and external over-temperature protection (External OTP). 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. The RT7791 also provides various features to protect against any fail.

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Datasheet Details

Part number RT7791
Manufacturer Richtek
File Size 120.31 KB
Description PWM Controller
Datasheet download datasheet RT7791 Datasheet

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Full PDF Text Transcription

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RT7791 PWM Controller for Programmable Power Converter (USBPD) General Description The RT7791 series is specifically designed to work with controllers, such as the RT7202, to provide a total solution for USB PD or a programmable power adapter. The RT7791 can achieve high efficiency, meet safety standards, and consume less than 50mW of power in a 5V standby condition. The RT7791 includes several innovations in order to provide a solution with a wide range of output voltage. By way of DMAG pin, the RT7791 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.
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