Texas Instruments UC3851DWTR Microcontrollers
Programmable off-line PWM controller 18-SOIC 0 to 70
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
UC3851DWTR
Detailed Description
Programmable off-line PWM controller 18-SOIC 0 to 70
Package
18-SOIC (0.295", 7.50mm Width)
Lifecycle Status
Active
Datasheet
UC3851DWTR Datasheet
Quick Jump:
Technical Specifications
Texas Instruments UC3851DWTR Microcontrollers technical specifications.
General
Package / Case
18-SOIC
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C (TA)
Supply Voltage
7.8V ~ 32V
Lifecycle Status
Active
Internal Switch S
No
Switching Frequency
Up to 500kHz
Topology
Boost, Buck, Flyback, Forward
Voltage Start Up
8 V
Duty Cycle
50%
Alternate Parts Comparison (UC3851DWTR vs UC3526ADWG4 vs UC2526ADW vs UC2841DW)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 18-SOIC | 18-SOIC | 18-SOIC | 18-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | -25°C ~ 85°C (TA) | -25°C ~ 85°C (TA) |
| Supply Voltage | 7.8V ~ 32V | 7V ~ 35V | 7V ~ 35V | 8V ~ 32V |
| Switching Frequency | Up to 500kHz | 1Hz ~ 600kHz | 1Hz ~ 600kHz | 500kHz |
| Lifecycle Status | Active | Active | Active | Active |
| Control Features | Frequency Control, Soft Start | Enable, Frequency Control, Reset, Soft Start | Enable, Frequency Control, Reset, Soft Start | Current Limit, Enable, Frequency Control, Ramp, Reset, Soft Start |
| Topology | Boost, Buck, Flyback, Forward | Buck, Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Boost, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull | Buck, Boost, Flyback, Forward Converter |
| Clock Sync | -- | Yes | Yes | No |
| Duty Cycle Max | -- | 49% | 49% | 95% |
| Function | -- | Step-Up, Step-Down, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down |
| Number of Outputs | -- | 2 | 2 | 1 |
| Action |
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