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UC3845AD8TR TI DC DC Switching Controllers
The UC3845A is a high-performance current-mode PWM controller optimized for DC-DC converters. It operates from 7.2V to 30V and features a trimmed oscillator frequency (52 kHz typical). The device includes a 1A totem-pole output for driving power MOSFETs and incorporates UVLO with hysteresis (8.4V on, 7.6V off). It is specifically designed for off-line and DC-DC converter applications requiring low start-up current (0.5 mA). Selection is ideal for flyback and forward converters. Applications include AC-DC adapters, battery chargers, and isolated telecom power supplies requiring cost-effective current-mode control. In stock at HL Electronics – request a quote for fast delivery.
Pricing (USD)
| Quantity | Unit Price |
|---|---|
| 1+ | $ 0.57 |
| 100+ | $ 0.47 |
| 1250+ | $ 0.43 |
| 2500+ | $ 0.41 |
| 37500+ | $ 0.41 |
| 50000+ | $ 0.41 |
Technical Specifications
- Part No.UC3845AD8TR
- Model UC3845AD8TR
- Category Integrated Circuits (ICs) > Power Management (PMIC) > DC DC Switching Controllers
- Manufacturer Texas Instruments
- Packaging Tape & Reel (TR)
- Part Status Active
- Output Type Transistor Driver
- Function Step-Up, Step-Down, Step-Up/Step-Down
- Topology Buck, Boost, Flyback, Forward
- Number of Outputs 1
- Output Phases 1
- Voltage - Supply (Vcc/Vdd) 7.6 V ~ 30 V
- Frequency - Switching Up to 500 kHz
- Duty Cycle (Max) 48%
- Synchronous Rectifier No
- Clock Sync No
- Control Features Frequency Control
- Operating Temperature 0°C ~ 70°C (TA)
- Mounting Type Surface Mount
- Supplier Device Package 8-SOIC
- Base Product Number UC3845
- RoHS ROHS3 Compliant
- Standard Package 2500