| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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89,140 pcs
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89140 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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6,500 pcs
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6500 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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1,000 pcs
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1000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Manufacturer Name | |
| Clock Sync | |
| Control Features | |
| Duty Cycle (Max) | |
| Frequency | |
| Function | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Output Configuration | |
| Output Phases | |
| Output Type | |
| Supplier Device Package | |
| Synchronous Rectifier | |
| Topology | |
| Voltage |
The UC3845BDR2G from ON Semiconductor is a versatile current mode controller suitable for off-line and DC-DC converter applications. It offers a wide operating voltage range from 7.6V to 30V and supports switching frequencies up to 500kHz, with a maximum duty cycle of 48%.
This controller integrates key features such as an oscillator, a temperature-compensated reference, a high-gain error amplifier, and a high-current totem pole output. Protective features include undervoltage lockout with hysteresis and cycle-by-cycle current limiting. The device is available in a 14-SOIC package, designed for surface mounting.
Its topology supports Boost and Flyback configurations, functioning as a step-up or step-up/step-down converter. The output type is a transistor driver, and it is capable of positive and isolation configurations. The operating temperature range is 0°C to 70°C.
Key specifications include an oscillator frequency guaranteed at 250 kHz and adjustable output deadtime from 50% to 70%. The UC3845B variant is tailored for lower voltage applications with specific UVLO thresholds.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.78 | $0.78 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage range is 7.6V to 30V.
The UC3845BDR2G supports operating frequencies up to 500kHz.
The maximum duty cycle for the UC3845BDR2G is 48%.
The operating temperature range is 0°C to 70°C.
The UC3845BDR2G is supplied in a 14-SOIC package.
The UC3845BDR2G functions as a Step-Up and Step-Up/Step-Down controller, supporting Boost and Flyback topologies.
Yes, the UC3845BDR2G features undervoltage lockout with hysteresis and specific thresholds of 8.5V (on) and 7.6V (off).
