| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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42,500 pcs
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42500 pcs | On Request | 1 | On Request | On Request | 25+ | On Request | On Request | |
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5,000 pcs
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5000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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800 pcs
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800 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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78 pcs
|
78 pcs | On Request | 1 | On Request | On Request | 1636 | On Request | On Request | |
| On Request | 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) | |
| Features | |
| Frequency | |
| Function | |
| Industrial Grade | |
| Mounting Type | |
| Number of Outputs | |
| Operating Temperature | |
| Output Configuration | |
| Output Phases | |
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| Supplier Device Package | |
| Synchronous Rectifier | |
| Topology | |
| Voltage |
The Texas Instruments UCC28C45DR is a BiCMOS low-power current-mode PWM controller. It is designed for high-performance applications and offers features such as adjustable switching frequency, current limiting, and dead time control.
This controller supports multiple topologies including Boost, Buck, Flyback, and Forward converters. It has a maximum duty cycle of 48% and operates at frequencies up to 1MHz. Key electrical characteristics include a wide operating voltage range of 7.6V to 18V, a low startup current of 50µA maximum, and a low operating current of 2.3mA at 52kHz.
The UCC28C45DR features fast, cycle-by-cycle overcurrent limiting in 35ns and a peak driving current of ±1A. The output has a rail-to-rail characteristic with a 25ns rise time and 20ns fall time. It includes a ±1% accurate 2.5V error amplifier reference and trimmed oscillator discharge current. Undervoltage lockout protections are also integrated.
Packaged in an 8-SOIC (0.154", 3.90mm Width) surface mount package, the UCC28C45DR is an enhanced replacement for the UCx84x and UCx84xA families, offering pin-to-pin compatibility. Its compact VSSOP-8 package option minimizes board space.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.40 | $0.40 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The UCC28C45DR operates within a voltage range of 7.6V to 18V.
The maximum duty cycle for the UCC28C45DR is 48%.
The operating temperature range is -40°C to 105°C (TJ).
It supports Boost, Buck, Flyback, Forward, and SEPIC topologies.
The UCC28C45DR can operate at frequencies up to 1MHz.
The maximum startup current is 50µA.
It is available in an 8-SOIC package.