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uP1674 - 3/2-Phase SDPWM Controller

General Description

The uP1674 is a Simulated Digital PWM controller that integrates a 3/2-phase PWM controller.

uP1674 accurately reports output voltages and output currents to comply with VR12 specification.

The uP1674 integrates 2 bootstrapped drivers that support 12V + 12V driving capability.

Key Features

  • include adjustable soft start, transient boost function, under/over voltage protection and over current protection. The uP1674 is available in VQFN5x5-32L package.

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Datasheet Details

Part number uP1674
Manufacturer uPI Semiconductor
File Size 732.78 KB
Description 3/2-Phase SDPWM Controller
Datasheet download datasheet uP1674 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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uP1674 3/2-Phase SDPWM Controller with SMBus for VR12 General Description The uP1674 is a Simulated Digital PWM controller that integrates a 3/2-phase PWM controller. uP1674 accurately reports output voltages and output currents to comply with VR12 specification. The uP1674 integrates 2 bootstrapped drivers that support 12V + 12V driving capability. 3/2 phase operation is enabled by a logic level PWM output, achieving optimal balance between cost and flexibility. The uP1674 supports phase adding/dropping that is activated by PSI command from SVID or by PS state from SMBUS. The uP1674 operates in diode emulation mode at extreme light load condition and achieves maximum efficiency over entire load current range.