onsemi UC3845BD1R2G Microcontrollers
PWM Controller, 1A, 500kHz, SOIC, Boost/Flyback
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
UC3845BD1R2G
Base Model
Detailed Description
PWM Controller, 1A, 500kHz, SOIC, Boost/Flyback
Package
8-SOIC (0.154", 3.90mm Width)
Lifecycle Status
Active
Datasheet
UC3845BD1R2G Datasheet
Quick Jump:
Technical Specifications
onsemi UC3845BD1R2G Microcontrollers technical specifications.
General
RoHS
Yes
Package / Case
8-SOIC
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C (TA)
Supply Voltage
7.6V ~ 30V
Lifecycle Status
Active
Output Type
Transistor Driver
Switching Frequency
Up to 500kHz
Number of Outputs
1
Topology
Boost, Flyback
Alternate Parts Comparison (UC3845BD1R2G vs UC3845BD1R2G vs UC3845BD1 vs UC3845BD1013TR)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Supply Voltage | 7.6V ~ 30V | 7.6V ~ 30V | 7.6V ~ 30V | 7.6V ~ 30V |
| Switching Frequency | Up to 500kHz | Up to 500kHz | Up to 500kHz | Up to 500kHz |
| RoHS | Yes | Yes | Yes | Yes |
| Lifecycle Status | Active | Active | Active | Active |
| Clock Sync | No | No | No | No |
| Control Features | Frequency Control | Frequency Control | Frequency Control | Frequency Control |
| Duty Cycle Max | 48% | 48% | 48% | 48% |
| Function | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down |
| Number of Outputs | 1 | 1 | 1 | 1 |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
This part is listed as a cross for
UC3845BD1013TRSTMicroelectronicsDirectonsemi
Pin YesPkg YesElec Yes
PWM DC/DC Controller, 500kHz, 5.1V, 1A, SO, SM
TL3845BDR-8Texas InstrumentsDirectonsemi
Pin YesPkg YesElec Yes
30-V, 0.2A high Performance 500KHz current mode PWM with 8.4V/7.6V UVLO, 50% duty cycle, 0C to 70C 8-SOIC 0 to 70
UC3845AD8TRTexas InstrumentsDirectonsemi
Pin YesPkg YesElec Yes
PWM Controller, 5V 1A, 500kHz, 30V, 8-Pin SOIC
MIC38C45YMMicrochip TechnologyDirectonsemi
Pin YesPkg YesElec Yes
IC REG CTRLR MULT TOPOLOGY 8SOIC
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Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
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