Automotive economy single ended 1MHz current mode PWM controller with 7.2V/6.9V UVLO 100% duty cycle

Automotive economy single ended 1MHz current mode PWM controller with 7.2V/6.9V UVLO 100% duty cycle



Product details


Topology Boost, Flyback, Forward Control mode Current Duty cycle (Max) (%) 100 Supply voltage (Max) (V) 11 UVLO thresholds on/off (V) 7.2/6.9 Features Adjustable Switching Frequency, Current Limiting, Dead Time Control, Error Amplifier, Leading Edge Blanking, Multi-topology, Soft Start Operating temperature range (C) -40 to 125 Rating Automotive Frequency (Max) (kHz) 1000 Gate drive (Typ) (A) 1 open-in-new Find other PWM controllers

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 open-in-new Find other PWM controllers


  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C TA
    • Device HBM classification level 2: ±2 kV
    • Device CDM classification level C5: >1000 V
  • 100-µA typical starting supply current
  • 500-µA typical operating supply current
  • Operation to 1 MHz
  • Internal soft start
  • Internal fault soft start
  • Internal leading-edge blanking of the current-sense signal
  • 1-A totem-pole output
  • 70-ns typical response from current-sense to gate-drive output
  • 1.5% tolerance voltage reference
  • Same pinout as the UCC3802 device, UC3842 device, and UC3842A device families
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The UCC2813-x-Q1 device family of high-speed, low-power integrated circuits contains all of the control and drive components required for off-line and DC-to-DC fixed-frequency current-mode switching power supplies with minimal parts count.

These devices have the same pin configuration as the UC284x device family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC2813-x-Q1 device family offers a variety of package options, choice of maximum duty cycle, and choice of critical voltage levels. Devices with lower reference voltage such as the UCC2813-3-Q1 and UCC2813-5-Q1 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC2813-2-Q1 device and UCC2813-4-Q1 device make these ideal choices for use in off-line power supplies.

The UCC2813-x-Q1 device series is specified for operation from –40°C to 125°C.

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Technical documentation

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* Data sheet UCC2813-x-Q1 Low-Power Economy BiCMOS Current-Mode PWM datasheet (Rev. E) Jul. 25, 2017

Design & development

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

Design tools & simulation

SLUM068B.ZIP (88 KB) - PSpice Model
SLUM512.ZIP (6 KB) - PSpice Model

Reference designs

Flyback, Linear Regulator for Medical Pack (5.75V @ 10mA)
PMP2187 — This design provides isolated 5V (x2), 3.3V, 2.5V and -5V outputs. All outputs are noise filtered using Low Drop Out (LDO) linear regulators for noise sensitive applications such as medical imaging and data acquisition.
document-generic Schematic
Design files

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options

Ordering & quality

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