onsemi UC3845BDR2G DC DC Switching Controllers
Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 14-SOIC
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
UC3845BDR2G
Detailed Description
IC REG CTRLR BOOST/FLYBK 14SOIC
Package
14-SOIC (0.154", 3.90mm Width)
Key Features
Package / Case: 14-SOIC (0.154", 3.90mm Width); Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
UC3845BDR2G Datasheet
Quick Jump:
Technical Specifications
onsemi UC3845BDR2G DC DC Switching Controllers technical specifications.
General
Package / Case
14-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
Control Features
Frequency Control
Related Parts Comparison (UC3845BDR2G vs UC3845BVDR2G vs UC2843BDG vs UC3843BDG)
Side-by-side specifications of related catalog parts.
Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.
| This Part | Related Part | Related Part | Related Part | |
|---|---|---|---|---|
| Package / Case | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 70°C (TA) | -40°C ~ 105°C (TA) | -25°C ~ 85°C (TA) | 0°C ~ 70°C (TA) |
| 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 |
| Lifecycle Status | Active | Active | Last Shipments | Last Shipments |
| Clock Sync | No | No | No | No |
| Control Features | Frequency Control | Frequency Control | Frequency Control | Frequency Control |
| Duty Cycle Max | 48% | 48% | 96% | 96% |
| 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 |
| Output Configuration | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable | Positive, Isolation Capable |
| 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
TL3845BDRTexas 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 14-SOIC 0 to 70
UC3845BDGonsemiDirectonsemi
Pin YesPkg YesElec Yes
Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 14-SOIC
TL3845BDTexas InstrumentsDirectonsemi
Pin YesPkg YesElec Yes
IC REG CTRLR MULT TOP 14SOIC
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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.
UC2843BDGonsemiBoost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 14-SOIC
CS2841BEDR14GonsemiBoost, Flyback Regulator Positive Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 14-SOIC