Home Power management AC/DC & isolated DC/DC switching regulators PWM controllers

UCC2808-2

ACTIVE

Low power current mode push-pull PWM with 4.3/4.1V UVLO, -40°C to 85°C

Product details

Topology Push pull Control mode Current Duty cycle (max) (%) 49 Switching frequency (max) (kHz) 1000 Features Error amplifier, Multi-topology, Soft start UVLO thresholds on/off (V) 4.3/4.1 Operating temperature range (°C) -40 to 85 Rating Catalog Gate drive (typ) (A) 1 Vin (max) (V) 14
Topology Push pull Control mode Current Duty cycle (max) (%) 49 Switching frequency (max) (kHz) 1000 Features Error amplifier, Multi-topology, Soft start UVLO thresholds on/off (V) 4.3/4.1 Operating temperature range (°C) -40 to 85 Rating Catalog Gate drive (typ) (A) 1 Vin (max) (V) 14
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Dual Output Drive Stages in Push-Pull
    Configuration
  • 130-µA Typical Starting Current
  • 1-mA Typical Run Current
  • Operation to 1-MHz
  • Internal Soft-Start
  • On-Chip Error Amplifier With 2-MHz Gain
    Bandwidth Product
  • On-Chip VDD Clamping
  • Output Drive Stages Capable Of 500-mA Peak
    Source Current, 1-A Peak Sink Current
  • Dual Output Drive Stages in Push-Pull
    Configuration
  • 130-µA Typical Starting Current
  • 1-mA Typical Run Current
  • Operation to 1-MHz
  • Internal Soft-Start
  • On-Chip Error Amplifier With 2-MHz Gain
    Bandwidth Product
  • On-Chip VDD Clamping
  • Output Drive Stages Capable Of 500-mA Peak
    Source Current, 1-A Peak Sink Current

The UCCx808-x is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. 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 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 60 ns to 200 ns depending on the values of the timing capacitor and resistors, thus limiting each output stage duty cycle to less than 50%.

The UCCx808-x is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. 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 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 60 ns to 200 ns depending on the values of the timing capacitor and resistors, thus limiting each output stage duty cycle to less than 50%.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Data sheet UCCx808-x Low Power Current Mode Push-Pull PWM datasheet (Rev. E) PDF | HTML 31 Aug 2015

Design & development

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

Package Pins Download
SOIC (D) 8 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos