| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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5,000 pcs
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5000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
3 pcs
|
3 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Clock Sync | |
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| Duty Cycle (Max) | |
| Frequency | |
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| Operating Voltage | |
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| Synchronous Rectifier | |
| Topology | |
| Voltage |
The UC3845D8 from Texas Instruments is a versatile current-mode Pulse Width Modulation (PWM) controller IC. It is optimized for use in off-line and DC-to-DC converter applications, requiring a minimal number of external components for implementation.
Key electrical features include a wide operating voltage range of 12V to 28V and operation at frequencies up to 500kHz. The controller supports various topologies such as Boost, Buck, Buck-Boost, Flyback, and Forward configurations. It offers a maximum duty cycle of 48% and features like low start-up current (<1mA), automatic feedforward compensation, pulse-by-pulse current limiting, and undervoltage lockout with hysteresis.
This device is housed in an 8-SOIC package, suitable for surface mount applications. The operating temperature range is from 0°C to 70°C. The UC3845D8 provides a high-current totem-pole output and an internally trimmed bandgap reference, making it a robust choice for power management designs.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.56 | $0.56 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
12V to 28V.
0°C to 70°C.
8-SOIC (0.154", 3.90mm Width).
Up to 500kHz.
48%.
Boost, Buck, Buck-Boost, Flyback, Forward.
Frequency control, automatic feedforward compensation, pulse-by-pulse current limiting, undervoltage lockout with hysteresis, double-pulse suppression, high-current totem-pole output, internally trimmed bandgap reference, and error amplifier with low output resistance.