Texas Instruments UC3846QTR DC DC Switching Controllers
IC REG CTRLR MULT TOP 20PLCC
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
UC3846QTR
Detailed Description
IC REG CTRLR MULT TOP 20PLCC
Package
20-LCC (J-Lead)
Key Features
Package / Case: 20-LCC (J-Lead); Mounting Type: Surface Mount
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
UC3846QTR Datasheet
Quick Jump:
Technical Specifications
Texas Instruments UC3846QTR DC DC Switching Controllers technical specifications.
General
Package / Case
20-LCC
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C (TA)
Supply Voltage
6.95V ~ 40V
Output Type
Transistor Driver
Switching Frequency
500kHz
Number of Outputs
2
Topology
Boost, Flyback, Forward Converter, Half-Bridge, Push-Pull
Control Features
Current Limit, Enable, Frequency Control, Soft Start
Output Configuration
Positive
Alternate Parts Comparison (UC3846QTR vs UC2846QTR vs UC3823QTR vs UC3825Q)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 20-LCC | 20-LCC | 20-LCC | 20-LCC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | 0°C ~ 70°C (TA) | -40°C ~ 85°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Supply Voltage | 6.95V ~ 40V | 6.95V ~ 40V | 8.4V ~ 30V | 8.4V ~ 30V |
| Switching Frequency | 500kHz | 500kHz | 340kHz ~ 460kHz | 340kHz ~ 460kHz |
| Clock Sync | Yes | Yes | No | No |
| Control Features | Current Limit, Enable, Frequency Control, Soft Start | Current Limit, Enable, Frequency Control, Soft Start | Current Limit, Enable, Frequency Control, Ramp, Soft Start | Current Limit, Enable, Frequency Control, Ramp, Soft Start |
| Duty Cycle Max | 50% | 50% | 85% | 85% |
| Function | Step-Up, Step-Up/Step-Down | Step-Up, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down | Step-Up, Step-Down, Step-Up/Step-Down |
| Number of Outputs | 2 | 2 | 1 | 2 |
| Output Configuration | Positive | Positive | Positive | Positive |
| Output Phases | 1 | 1 | 1 | 1 |
| Action |
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