| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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27,878 pcs
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27878 pcs | On Request | 1 | On Request | On Request | 18+ | On Request | On Request | |
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2,328 pcs
|
2328 pcs | On Request | 1 | On Request | On Request | 15+ | On Request | On Request | |
|
1,100 pcs
|
1100 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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| Synchronous Rectifier | |
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| Voltage |
The TL2843BDR-8 from Texas Instruments is a current-mode Pulse Width Modulation (PWM) controller IC. It is designed to facilitate the implementation of off-line or DC-to-DC fixed-frequency current-mode control schemes with minimal external components.
Key electrical specifications include an operating voltage range of 7.6V to 30V and an operating frequency of up to 500kHz. The device features a low start-up current of less than 0.5mA and internally trimmed reference voltage with undervoltage lockout. It supports a maximum duty cycle of 100% and offers features like latching PWM for cycle-by-cycle current limiting and automatic feed-forward compensation.
This controller is suitable for applications such as switching regulators of any polarity and transformer-coupled DC/DC converters. The TL2843BDR-8 is available in an 8-SOIC package, designed for surface mount applications.
The TL284xB series, including the TL2843BDR-8, is characterized for operation from -40°C to 85°C, making it suitable for various environmental conditions.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.78 | $0.78 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The supply voltage range is 7.6V to 30V. The undervoltage lockout turn-on threshold is 8.4V and turn-off is 7.6V.
The TL2843BDR-8 is available in an 8-SOIC (0.154", 3.90mm width) surface mount package.
The operating ambient temperature range is -40°C to 85°C.
It supports Boost, Flyback, and Forward topologies.
The switching frequency can be set up to 500kHz.
The maximum duty cycle is 96%.
It includes adjustable switching frequency, current limiting, error amplifier, fixed frequency, and multi-topology support.