UCC28C45D Texas Instruments power-management (SOIC-8) In Stock
UCC28C45D is a BiCMOS current-mode PWM controller from Texas Instruments, operating up to 1MHz with 1A totem-pole gate drive output, SOIC-8 package, -40C to 85C range. In stock from $0.55, MOQ 315, global shipping.
- Manufacturer
- Texas Instruments
- Package
- SOIC-8
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UCC28C45D Datasheet PDF
- Category
- power-management
- Price
- From $0.5512(MOQ 315)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Applications
UCC28C45D is widely used in offline flyback and forward converters, DC-DC power supplies, and telecom power modules requiring precise current-mode control. Its 1MHz capability suits compact, high-efficiency SMPS designs in industrial, telecom, and consumer electronics.
Specifications
| Supply Voltage (Vcc) | 10V to 25V |
| Switching Frequency | up to 1MHz |
| Output Current | 1A peak (totem-pole) |
| Operating Temperature | -40C to +85C |
| Package | SOIC-8 |
| Control Topology | Current Mode PWM |
| Startup Current | less than 1mA |
| Max Duty Cycle | 100% adjustable |
| Package | SOIC-8 |
Compliance & Regulatory
| RoHS Status | Compliant |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UCC28C45D:
Frequently Asked Questions
What is the maximum switching frequency of UCC28C45D?
The UCC28C45D supports switching frequencies up to 1MHz, set by an external resistor and capacitor on the RT/CT pins. This high-frequency capability enables smaller magnetics and more compact power supply designs compared to legacy 500kHz controllers.
What package and pin count does UCC28C45D come in?
UCC28C45D is available in an 8-pin SOIC (Small Outline Integrated Circuit) package with 1.27mm pitch. This standard footprint is fully compatible with UC3845 and similar current-mode PWM controllers, simplifying drop-in replacements on existing PCB layouts.
What are common applications for UCC28C45D?
UCC28C45D is commonly used in offline flyback converters, forward converters, DC-DC buck/boost regulators, and telecom rectifiers. Its current-mode control with cycle-by-cycle limiting makes it ideal for power supplies requiring tight regulation and built-in overcurrent protection.
What is the operating temperature range of UCC28C45D?
UCC28C45D operates over an industrial temperature range of -40C to +85C, making it suitable for demanding industrial, telecommunications, and commercial applications where wide ambient temperature variation is expected.
What are compatible alternates for UCC28C45D?
Compatible alternatives include UC3845D (TI, pin-compatible, 500kHz), NCP1200 (ON Semiconductor), and UC2842B (STMicroelectronics). All share current-mode PWM topology with SOIC-8 pinout, though frequency range and BiCMOS process details differ — verify datasheet before substitution.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 315+ | $0.6360 | $200.34 |
| 410+ | $0.6148 | $252.07 |
| 545+ | $0.5512 | $300.40 |
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