Texas Instruments UCCx8C5x/UCCx8C5x-Q1 Current-Mode PWM Controllers

Texas Instruments UCCx8C5x/UCCx8C5x-Q1 Current-Mode PWM Controllers offer a high-performance solution that can drive both Si and SiC MOSFETs in various applications. The UCCx8C5x/UCCx8C5x-Q1 is a more efficient and robust version of the UCCx8C4x/UCCx8C4x-Q1. The devices provide unique UVLO thresholds that enable a reliable SiC MOSFET operation (UCC28C56-59) and existing UVLO thresholds for continued Si MOSFET support (UCCx8C50-55).

The TI UCCx8C5x/UCCx8C5x-Q1 current-mode PWM controllers are available in 8-pin VSSOP (DGK) and 8-pin SOIC (D) packages.

Features

Undervoltage lockout options to support both Si and SiC MOSFET applications
1MHz maximum fixed frequency operation
50μA startup current, 75μA maximum
Low operating current of 1.3mA (at f_OSC = 52kHz)
Fast 35ns, cycle-by-cycle overcurrent limiting
±1A peak driving current
Rail-to-rail output
- 25ns rise time
- 20ns fall time

30V VDD absolute maximum voltage
±1% accurate 2.5V error amplifier reference
Pin-to-pin compatible and drop-in replacement for UCCx8C4x
Functional safety-capable
Documentation available to aid functional safety system design
AEC-Q100 qualified with the following results (-Q1)
- -40°C to +125°C Device temperature grade 1
- ±2kV Device HBM classification level 2
- 750V Device CDM classification level C4B

Applications

General purpose single-ended DC-DC or off-line isolated power converters
Auxiliary power supply for solar power inverters, motor drives, and energy storage systems
Isolated power supply for EV charging stations

Texas Instruments UCCx8C5x/UCCx8C5x-Q1 Current-Mode PWM Controllers

Features

Applications

Simplified Application

Typical Automotive Application

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