Product Summary

The UCC2895DW is a phase-shift PWM controller that implements control of a full-bridge power stage by phase shifting the switching of one half-bridge with respect to the other. It allows constant frequency pulse-width modulation in conjunction with resonant zero-voltage switching to provide high efficiency at high frequencies. The part can be used either as a voltage-mode or current-mode controller. The applications of the UCC2895DW include Phase-Shifted Full-Bridge Converters, Off-Line, Telecom, Datacom and Servers, Distributed Power Architecture and High-Density Power Modules. It operates with dramatically less supply current than it is bipolar counterparts. The UCC2895DW can operate with a maximum clock frequency of 1 MHz.

Parametrics

UCC2895DW absolute maximum ratings: (1)Supply voltage (IDD < 10 mA): 17 V; (2)Supply current: 30mA; (3)Reference current: 15 mA; (4)Output crrent: 100mA; (5)Analog inputs EAP, EAN, EAOUT, RAMP, SYNC, ADS, CS, SS/DISB --0.3 V to REF+0.3 V; (6)Drive outputs OUTA, OUTB, OUTC, OUTD: -0.3 V to VCC + 0.3 V; (7)Power dissipation at TA= 25℃: 650 mW; (8)Storage temperature range, Tstg: -65 to 150℃; (9)Junction temperature range, TJ: -55 to 150℃; (10)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 300℃.

Features

UCC2895DW features: (1)Programmable Output Turn-on Delay; (2)Adaptive Delay Set; (3)Bidirectional Oscillator Synchronization; (4)Voltage-Mode, Peak Current-Mode, or Average Current-Mode Control; (5)Programmable Softstart/Softstop and Chip Disable via a Single Pin; (6)0% to 100% Duty-Cycle Control; (7)7MHz Error Amplifier; (8)Operation to 1 MHz; (9)Typical 5-mA Operating Current at 500 kHz; (10)Very Low 150-μA Current During UVLO.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
UCC2895DW
UCC2895DW

Texas Instruments

Soft Switching PWM Controllers BiCMOS Adv Phase Shft Resonant Cntrlr

Data Sheet

0-1: $4.99
1-25: $4.54
25-100: $4.10
100-250: $3.77
UCC2895DWG4
UCC2895DWG4

Texas Instruments

Soft Switching PWM Controllers BiCMOS Adv Phase Shft Resonant Cntrlr

Data Sheet

0-1: $4.99
1-25: $4.54
25-100: $4.10
100-250: $3.77
UCC2895DWTRG4
UCC2895DWTRG4

Texas Instruments

Soft Switching PWM Controllers BiCMOS Adv Phase Shft Resonant Cntrlr

Data Sheet

0-1485: $2.51
1485-2000: $2.42
UCC2895DWTR
UCC2895DWTR

Texas Instruments

Soft Switching PWM Controllers BiCMOS Adv Phase Shft Resonant Cntrlr

Data Sheet

0-1485: $2.51
1485-2000: $2.42