| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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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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50 pcs
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50 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-16 21:33:16 |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| Automotive Grade | |
| Clock Sync | |
| Control Features | |
| Duty Cycle (Max) | |
| Frequency | |
| Function | |
| Halogen Free | |
| Industrial Grade | |
| Lead Style | |
| Medical Grade | |
| Military Grade | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Output Configuration | |
| Output Phases | |
| Output Type | |
| SVHC Present | |
| Supplier Device Package | |
| Supplier Package | |
| Synchronous Rectifier | |
| Topology | |
| Voltage |
The UC3844AD8 from Texas Instruments is a current mode Pulse Width Modulation (PWM) controller. It is optimized for off-line and DC-DC converter applications, offering features such as adjustable switching frequency up to 500kHz and a maximum duty cycle of 48%.
Key electrical characteristics include a wide operating voltage range of 10V to 30V and a standard operating temperature range of 0°C to 70°C. The device incorporates several control features like frequency control, pulse-by-pulse current limiting, and undervoltage lockout with hysteresis. It also provides a high-current totem pole output and an internally-trimmed bandgap reference.
This controller is available in an 8-SOIC package, suitable for surface mount applications. Its design facilitates step-up, step-down, and step-up/step-down topologies, making it versatile for various power supply designs. The UC3844AD8 is an improved version of the UCx84x family, featuring low start-up current and enhanced load response characteristics.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.61 | $0.61 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The UC3844AD8 operates from 10V to 30V.
The maximum switching frequency is 500kHz.
The maximum duty cycle is 48%.
The operating temperature range is 0°C to 70°C.
The UC3844AD8 is available in an 8-SOIC surface mount package.
It supports boost, buck, flyback, and forward topologies.
Yes, it includes undervoltage lockout with hysteresis.