Texas Instruments UC3844D8 Microcontrollers
Single ended 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0C to 70C 8-SOIC 0 to 70
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
UC3844D8
Detailed Description
Single ended 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, 0C to 70C 8-SOIC 0 to 70
Package
8-SOIC (0.154", 3.90mm Width)
Lifecycle Status
Active
Datasheet
UC3844D8 Datasheet
Quick Jump:
Technical Specifications
Texas Instruments UC3844D8 Microcontrollers technical specifications.
General
RoHS
Yes
Package / Case
8-SOIC
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C (TA)
Supply Voltage
12V ~ 28V
Lifecycle Status
Active
Output Type
Transistor Driver
Switching Frequency
Up to 500kHz
Number of Outputs
1
Topology
Boost, Buck, Buck-Boost, Flyback, Forward
Related Parts Comparison (UC3844D8 vs UCC27201DDAR vs UCC28250PW vs UCC27201ADDAR)
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 | 8-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 | 12V ~ 28V | 12V | 12V | 12V |
| RoHS | Yes | Yes | Yes | Yes |
| Lifecycle Status | Active | Active | Active | Active |
| Number of Outputs | 1 | 2 | 1 | 2 |
| Package | SOIC (D)-8 | HSOP | TSSOP | HSOP |
| 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 |
| 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 .
Suggested replacements
UC3844BD1R2GonsemiSimilaronsemi
Pin YesPkg YesElec Mixed
Current Mode PWM Controller, SOIC-8, 275kHz, 30V
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