UCC2893PWR
Active110-V ACTIVE CLAMP CURRENT MODE PWM CONTROLLER WITH N-CHANNEL CLAMP FET AND 0.75V CS THRESHOLD
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UCC2893PWR
Active110-V ACTIVE CLAMP CURRENT MODE PWM CONTROLLER WITH N-CHANNEL CLAMP FET AND 0.75V CS THRESHOLD
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Technical Specifications
Parameters and characteristics for this part
| Specification | UCC2893PWR |
|---|---|
| Clock Sync | True |
| Control Features | Ramp, Soft Start, On Time Control, Enable, Current Limit |
| Duty Cycle (Max) [Max] | 70 % |
| Frequency - Switching | 250 kHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive, Isolation Capable |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 16-TSSOP |
| Package / Case [x] | 0.173 in |
| Package / Case [y] | 4.4 mm |
| Supplier Device Package | 16-TSSOP |
| Synchronous Rectifier | False |
| Topology | Forward Converter, Flyback |
| Voltage - Supply (Vcc/Vdd) [Max] | 16 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 8.5 V |
UCC2893 Series
110-V active clamp current mode PWM controller with N-channel clamp FET and 0.75V CS threshold
| Part | Synchronous Rectifier | Clock Sync | Supplier Device Package | Number of Outputs | Output Type | Topology | Operating Temperature [Max] | Operating Temperature [Min] | Voltage - Supply (Vcc/Vdd) [Min] | Voltage - Supply (Vcc/Vdd) [Max] | Package / Case | Package / Case [x] | Package / Case [y] | Control Features | Function | Duty Cycle (Max) [Max] | Mounting Type | Frequency - Switching | Output Configuration | Output Phases |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Texas Instruments | 16-SOIC | 1 | Transistor Driver | Flyback Forward Converter | 85 °C | -40 °C | 8.5 V | 16 V | 16-SOIC | 0.154 in | 3.9 mm | Current Limit Enable On Time Control Ramp Soft Start | Step-Up/Step-Down | 70 % | Surface Mount | 250 kHz | Isolation Capable Positive | 1 | ||
 Texas Instruments | 16-SOIC | 1 | Transistor Driver | Flyback Forward Converter | 85 °C | -40 °C | 8.5 V | 16 V | 16-SOIC | 0.154 in | 3.9 mm | Current Limit Enable On Time Control Ramp Soft Start | Step-Up/Step-Down | 70 % | Surface Mount | 250 kHz | Isolation Capable Positive | 1 | ||
 Texas Instruments | 16-TSSOP | 1 | Transistor Driver | Flyback Forward Converter | 85 °C | -40 °C | 8.5 V | 16 V | 16-TSSOP | 0.173 in | 4.4 mm | Current Limit Enable On Time Control Ramp Soft Start | Step-Up/Step-Down | 70 % | Surface Mount | 250 kHz | Isolation Capable Positive | 1 | ||
Texas Instruments | 16-TSSOP | 1 | Transistor Driver | Flyback Forward Converter | 85 °C | -40 °C | 8.5 V | 16 V | 16-TSSOP | 0.173 in | 4.4 mm | Current Limit Enable On Time Control Ramp Soft Start | Step-Up/Step-Down | 70 % | Surface Mount | 250 kHz | Isolation Capable Positive | 1 |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 3.48 | |
| 10 | $ 3.12 | |||
| 25 | $ 2.95 | |||
| 100 | $ 2.56 | |||
| 250 | $ 2.43 | |||
| 500 | $ 2.18 | |||
| 1000 | $ 1.84 | |||
| Digi-Reel® | 1 | $ 3.48 | ||
| 10 | $ 3.12 | |||
| 25 | $ 2.95 | |||
| 100 | $ 2.56 | |||
| 250 | $ 2.43 | |||
| 500 | $ 2.18 | |||
| 1000 | $ 1.84 | |||
| Tape & Reel (TR) | 2000 | $ 1.74 | ||
| Texas Instruments | LARGE T&R | 1 | $ 2.62 | |
| 100 | $ 2.30 | |||
| 250 | $ 1.61 | |||
| 1000 | $ 1.30 | |||
Description
General part information
UCC2893 Series
The UCC2891/2/3/4 family of PWM controllers is designed to simplify implementation of the various active clamp/reset switching power topologies.
The UCC289x is a peak current-mode, fixedfrequency, high-performance pulse width modulator. It includes the logic and the drive capability for the auxiliary switch with a simple method of programming the critical delays for proper active clamp operation.
The UCC2891/3 includes a 110-V start-up regulator for initial start-up and to provide keep-alive power during stand-by.
Documents
Technical documentation and resources