Texas Instruments UC3851DW 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)
UC3851DW
Detailed Description
Programmable off-line PWM controller 18-SOIC 0 to 70
Package
18-SOIC (0.295", 7.50mm Width)
Lifecycle Status
Active
Datasheet
UC3851DW Datasheet
Quick Jump:
Technical Specifications
Texas Instruments UC3851DW 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 (UC3851DW vs UCC27201DDAR vs UCC28250PW vs UCC27201ADDAR)
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 | 8-PowerSOIC | 20-TSSOP | 8-PowerSOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 70°C (TA) | -40°C ~ 140°C (TJ) | -40°C ~ 125°C (TJ) | -40°C ~ 140°C (TJ) |
| Supply Voltage | 7.8V ~ 32V | 12V | 12V | 12V |
| Lifecycle Status | Active | Active | Active | Active |
| Fall Time | -- | 7ns | 8ns | 7ns |
| Height | -- | 1.7mm | 1.05mm | 1.7mm |
| Lead Free | -- | Lead Free | Lead Free | Lead Free |
| Length | -- | 4.89mm | 6.6mm | 4.89mm |
| Max Supply Current | -- | 5.5mA | 3.4mA | 5.5mA |
| Number of Outputs | -- | 2 | 1 | 2 |
| Output Current | -- | 3A | 20mA | 3A |
| Action |
More Parts in Microcontrollers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
MAX222CDWRTexas Instruments5-V Dual RS-232 Line Driver/Receiver with +/-15 kV ESD Protection 18-SOIC 0 to 70
TRS222IDWRTexas Instruments5-V Dual RS-232 Line Driver/Receiver With +/-15-kV ESD Protection 18-SOIC -40 to 85
