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UCC38C53

ACTIVE

Commercial, 30-V, low-power current-mode PWM controller, 8.4-V/7.6-V UVLO, 100% duty cycle

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Data sheet

UCC38C53

ACTIVE
Data sheet Order now

Product details

Operating temperature range (°C) 0 to 85 Control mode Current Topology Boost, Buck, Flyback, Forward, SEPIC Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Multi-topology, Programmable max duty cycle Duty cycle (max) (%) 100
Operating temperature range (°C) 0 to 85 Control mode Current Topology Boost, Buck, Flyback, Forward, SEPIC Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Multi-topology, Programmable max duty cycle Duty cycle (max) (%) 100
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Undervoltage lockout options to support both Si and SiC MOSFET applications
  • 30-V VDD absolute maximum voltage
  • 1-MHz maximum fixed frequency operation
  • 50-µA startup current, 75-µA maximum
  • Low operating current: 1.3 mA (at f OSC = 52 kHz)
  • Fast 35-ns, cycle-by-cycle overcurrent limiting
  • ±1-A peak driving current
  • Rail-to-rail output
    • 25-ns rise time
    • 20-ns fall time
  • ±1% accurate 2.5-V error amplifier reference
  • Pin-to-pin compatible and drop-in replacement for UCCx8C4x
  • Functional Safety-Capable
  • Undervoltage lockout options to support both Si and SiC MOSFET applications
  • 30-V VDD absolute maximum voltage
  • 1-MHz maximum fixed frequency operation
  • 50-µA startup current, 75-µA maximum
  • Low operating current: 1.3 mA (at f OSC = 52 kHz)
  • Fast 35-ns, cycle-by-cycle overcurrent limiting
  • ±1-A peak driving current
  • Rail-to-rail output
    • 25-ns rise time
    • 20-ns fall time
  • ±1% accurate 2.5-V error amplifier reference
  • Pin-to-pin compatible and drop-in replacement for UCCx8C4x
  • Functional Safety-Capable

The UCCx8C5x family of devices are high-performance current-mode PWM controllers that can drive both Si and SiC MOSFETs in various applications. The UCCx8C5x family is a more efficient and robust version of the UCCx8C4x.

The UCCx8C5x family has new UVLO thresholds that allow for reliable SiC MOSFET operation (UCC28C56-59), in addition to existing UVLO thresholds for continued Si MOSFET support (UCCx8C50-55).

VDD absolute maximum voltage rating is extended from 20 V to 30 V for optimally driving the gate of 20-V gs, 18-V gs, or 15-V gs SiC MOSFETs, while also allowing for the exclusion of an external LDO.

The UCCx8C5x family is offered in 8-pin VSSOP (DGK), and 8-pin SOIC (D) packages.

The UCCx8C5x family of devices are high-performance current-mode PWM controllers that can drive both Si and SiC MOSFETs in various applications. The UCCx8C5x family is a more efficient and robust version of the UCCx8C4x.

The UCCx8C5x family has new UVLO thresholds that allow for reliable SiC MOSFET operation (UCC28C56-59), in addition to existing UVLO thresholds for continued Si MOSFET support (UCCx8C50-55).

VDD absolute maximum voltage rating is extended from 20 V to 30 V for optimally driving the gate of 20-V gs, 18-V gs, or 15-V gs SiC MOSFETs, while also allowing for the exclusion of an external LDO.

The UCCx8C5x family is offered in 8-pin VSSOP (DGK), and 8-pin SOIC (D) packages.
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Technical documentation

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* Data sheet UCCx8C5x Low-Power Current-Mode High-Performance PWM Controller for Si and SiC MOSFETs datasheet (Rev. C) PDF | HTML 23 Mar 2023

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

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User guide: PDF | HTML
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Test report: PDF
Schematic: PDF
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SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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