onsemi UC3843BD1R2G Microcontrollers
PWM Controller, DC/DC, Current Mode, SOIC-8, 52kHz, 30V
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
UC3843BD1R2G
Base Model
Detailed Description
PWM Controller, DC/DC, Current Mode, SOIC-8, 52kHz, 30V
Package
8-SOIC (0.154", 3.90mm Width)
Lifecycle Status
Active
Datasheet
UC3843BD1R2G Datasheet
Quick Jump:
Technical Specifications
onsemi UC3843BD1R2G 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 (UC3843BD1R2G vs UC3843BD1 vs UC3843BDG vs UC3843BDR2)
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 | 14-SOIC | 14-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°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 | Obsolete |
| Clock Sync | No | No | No | No |
| Control Features | Frequency Control | Frequency Control | Frequency Control | Frequency Control |
| Duty Cycle Max | 96% | 96% | 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
TL3843BDR-8Texas InstrumentsDirectonsemi
Pin YesPkg YesElec Yes
30V, 0.2A high Performance 500KHz current mode PWM with 8.4V/7.6V UVLO, 100% duty cycle, 0C to 70C 8-SOIC 0 to 70
UC3843AD8TRTexas InstrumentsDirectonsemi
Pin YesPkg YesElec Yes
30-V, 1A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle 0°C to 70°C 8-SOIC 0 to 70
ISL6843IBZRenesasSimilaronsemi
Pin YesPkg YesElec Mixed
IC REG CTRLR BOOST/FLYBACK 8SOIC
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UC3843BD1R2onsemiBoost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC
