onsemi UC3843BVD1R2G Microcontrollers
PWM Controller IC, SOIC-8, 500kHz, 25V, 1A
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
UC3843BVD1R2G
Detailed Description
PWM Controller IC, SOIC-8, 500kHz, 25V, 1A
Package
8-SOIC (0.154", 3.90mm Width)
Lifecycle Status
Active
Datasheet
UC3843BVD1R2G Datasheet
Quick Jump:
Technical Specifications
onsemi UC3843BVD1R2G Microcontrollers technical specifications.
General
RoHS
Yes
Package / Case
8-SOIC
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 105°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 (UC3843BVD1R2G vs LM2904EDR2G vs MC33071DR2G vs MC33077DR2G)
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 | -40°C ~ 105°C (TA) | -40°C ~ 105°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Lifecycle Status | Active | Active | Active | Active |
| RoHS | Yes | Yes | -- | Yes |
| Package | SOIC-8 | SOIC-8 | -- | SOIC-8 |
| Amplifier Type | -- | General Purpose | General Purpose | General Purpose |
| Current Input Bias | -- | 45 nA | 100 nA | 280 nA |
| Current Output Channel | -- | 40 mA | 30 mA | 33 mA |
| Current Supply | -- | 1.5mA (x2 Channels) | 1.9mA | 3.5mA |
| Gain Bandwidth Product | -- | 1 MHz | 4.5 MHz | 37 MHz |
| Number of Circuits | -- | 2 | 1 | 2 |
| 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
TL2843D-8Texas InstrumentsDirectonsemi
Pin YesPkg YesElec Upgrade
Economy single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle, -40-85C 8-SOIC -40 to 85
UC3843BVD1GonsemiDirectonsemi
Pin YesPkg YesElec Yes
Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC
CS5126XDR8onsemiSimilaronsemi
Pin NoPkg YesElec Mixed
Flyback, Forward Converter Regulator Positive, Isolation Capable Output Step-Up/Step-Down DC-DC Controller IC 8-SOIC
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