UCC3808-1 Low Power Current Mode Push-Pull PWM | TI.com

UCC3808-1 (ACTIVE)

Low Power Current Mode Push-Pull PWM

 

Description

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%.

Features

  • 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

Parametrics

Compare all products in PWM controllers & resonant controllers Email Download to Excel
Part number Order Topology Control method VCC (Min) (V) VCC (Max) (V) Frequency (Max) (kHz) UVLO thresholds on/off (V) Duty cycle (Max) (%) Gate drive (Typ) (A) Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
UCC3808-1 Order now Push-Pull     Current     13     14     1000     12.5/8.3     49     1     Error Amplifier
Multi-topology
Soft Start    
Catalog     0 to 70     PDIP | 8
SOIC | 8    
See datasheet (PDIP)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
UCC3808-2 Order now Push-Pull     Current     5     14     1000     4.3/4.1     49     1     Error Amplifier
Multi-topology
Soft Start    
Catalog     0 to 70     PDIP | 8
SOIC | 8    
See datasheet (PDIP)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
UCC3808A-1 Order now Push-Pull     Current     13     14     1000     12.5/8.3     49     1     Error Amplifier
Multi-topology
Soft Start    
Catalog     0 to 70     PDIP | 8
SOIC | 8    
See datasheet (PDIP)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
UCC3808A-2 Order now Push-Pull     Current     5     14     1000     4.3/4.1     49     1     Error Amplifier
Multi-topology
Soft Start    
Catalog     0 to 70     PDIP | 8
SOIC | 8
TSSOP | 8    
See datasheet (PDIP)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8TSSOP: 19 mm2: 6.4 x 3 (TSSOP | 8)