| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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200,000 pcs
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200000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
97 pcs
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97 pcs | On Request | 1 | On Request | On Request | 06+ | On Request | On Request |
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The TL3845 from Texas Instruments is a current-mode Pulse Width Modulation (PWM) controller designed for efficient off-line and DC-to-DC power conversion applications. It offers a fixed operating frequency of 500 kHz, enabling compact designs. The controller features a low start-up current of less than 1 mA, which is beneficial for power efficiency.
Key internal circuits include an undervoltage lockout (UVLO) with hysteresis, automatic feed-forward compensation, and pulse-by-pulse current limiting. The device also provides double-pulse suppression and a high-current totem-pole output stage suitable for driving N-channel MOSFETs. The maximum duty cycle is specified at 50%.
The TL3845 is designed to be interchangeable with the UC2842 and UC3842 series. It is available in SOIC and PDIP packages, supporting various mounting requirements. This controller is optimized for applications requiring precise current control and enhanced load-response characteristics.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.78 | $0.78 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The TL3845 operates at a nominal frequency of 500 kHz.
The TL3845 has a low start-up current of less than 1 mA.
The maximum duty cycle for the TL3845 is 50%.
The TL3845 features undervoltage lockout at 8.4V and 7.6V, with hysteresis.
The TL3845 is available in SOIC and PDIP packages.
