| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
51,657 pcs
|
51657 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
|
142 pcs
|
142 pcs | On Request | 1 | On Request | On Request | 1127+ | On Request | On Request | |
| On Request | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| AEC Qualified | |
| Automotive Grade | |
| Clock Sync | |
| Control Features | |
| Duty Cycle (Max) | |
| Frequency | |
| Function | |
| Industrial Grade | |
| Lead Style | |
| Medical Grade | |
| Military Grade | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Output Configuration | |
| Output Phases | |
| Output Type | |
| Supplier Device Package | |
| Synchronous Rectifier | |
| Topology | |
| Voltage |
The UC2843ADTR is a current-mode PWM controller from Texas Instruments designed for DC-DC conversion in boost, buck, flyback, and forward topologies. It operates with a switching frequency up to 500kHz and a maximum duty cycle of 96%. The undervoltage lockout (UVLO) threshold is set at 7.6V (minimum) and 8.4V (maximum), ensuring reliable startup and shutdown.
The controller provides a single transistor driver output with positive or isolation-capable configuration, making it suitable for both isolated and non-isolated power supplies. It operates over a temperature range of -40°C to 85°C, accommodating industrial and automotive environments.
The device is housed in a 14-SOIC surface-mount package (0.154", 3.90mm width), which is compact and suitable for automated assembly. Its versatility across multiple topologies and robust electrical characteristics make it a common choice for power supply designs.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.34 | $0.34 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The UVLO threshold is 7.6V (minimum) and 8.4V (maximum).
The device is available in a 14-SOIC surface-mount package.
The operating temperature range is -40°C to 85°C.
The maximum switching frequency is 500kHz.
The maximum duty cycle is 96%.
It supports boost, buck, flyback, and forward topologies.
The output configuration is positive and isolation capable.