UCC2813-1-Q1

ACTIVE

Automotive economy single ended 1MHz current mode PWM controller with 9.4V/7.4V UVLO 50% duty cycle

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Automotive economy single ended 1MHz current mode PWM controller with 9.4V/7.4V UVLO 50% duty cycle

UCC2813-1-Q1

ACTIVE

Product details

Parameters

Topology Boost, Flyback, Forward Control method Current VCC (Min) (V) 9.4 VCC (Max) (V) 11 Duty cycle (Max) (%) 50 UVLO thresholds on/off (V) 9.4/7.4 Frequency (Max) (kHz) 1000 Operating temperature range (C) -40 to 125 Gate drive (Typ) (A) 1 Features Adjustable Switching Frequency, Current Limiting, Dead Time Control, Error Amplifier, Leading Edge Blanking, Multi-topology, Soft Start Rating Automotive open-in-new Find other PWM controllers & resonant controllers

Package | Pins | Size

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

Features

  • Qualified for Automotive Applications
  • ESD Protection Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
  • 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 UC3802, UC3842, and UC3842A

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Description

The UCC2813-0/-1/-2/-3/-4/-5 family of high-speed, low-power integrated circuits contain 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 UC2842/3/4/5 family and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC2813-0/-1/-2/-3/-4/-5 family offers choice of maximum duty cycle and critical voltage levels. Lower reference parts such as the UCC2813-3 and UCC2813-5 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC2813-2 and UCC2813-4 make these ideal choices for use in off-line power supplies.

The UCC2813-xQ-Q1 series is specified for the automotive temperature range of –40°C to 125°C.

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Technical documentation

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Type Title Date
* Datasheet Low-Power BICMOS Current-Mode PWM datasheet (Rev. D) Apr. 30, 2008

Design & development

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

Design tools & simulation

SIMULATION MODELS Download
SLUM069B.ZIP (87 KB) - PSpice Model
SIMULATION MODELS Download
SLUM513.ZIP (6 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
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.
Design files
REFERENCE DESIGNS Download
Design files

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options

Ordering & quality

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