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UCC3808-1
  • UCC3808-1
  • UCC3808-1
  • UCC3808-1

UCC3808-1

ACTIVE

Low power current mode push-pull PWM with 12.5/8.3V UVLO, 0°C to 70°C

Texas Instruments UCC3808-1 Product Info

1 April 2026 3

Parameters

Topology

Push pull

Control mode

Current

Features

Error amplifier, Multi-topology, Soft start

Duty cycle (max) (%)

49

Package

PDIP (P)-8-92.5083 mm² 9.81 x 9.43

Features

  • Dual output drive stages in push-pull configuration
  • 130µA typical starting current
  • 1mA typical run current
  • Operation to 1MHz
  • Internal soft-start
  • On-chip error amplifier with 2MHz gain bandwidth product
  • On-chip VDD clamping
  • Output drive stages capable of 500mA peak source current, 1A peak sink current
  • Dual output drive stages in push-pull configuration
  • 130µA typical starting current
  • 1mA typical run current
  • Operation to 1MHz
  • Internal soft-start
  • On-chip error amplifier with 2MHz gain bandwidth product
  • On-chip VDD clamping
  • Output drive stages capable of 500mA peak source current, 1A peak sink current

Description

The UCCx808-x is a family of BiCMOS push-pull pulse-width modulators that are high-speed and low-power. The UCCx808 contains all of the control and drive circuitry required for offline or DC-to-DC fixed frequency current-mode switching power supplies with a minimal external parts count.

The UCCx808-x dual output drive stages are arranged in a push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop. The dead time between the two outputs is typically 60ns to 200ns, depending on the values of the timing capacitor and resistors, thus limiting each output stage duty cycle to less than 50%.

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