UCC3801D Texas Instruments power-management (SOIC-8) In Stock
UCC3801D is a BiCMOS current-mode PWM controller by Texas Instruments in SOIC-8, operating 5V to 15V supply, up to 1MHz switching frequency; from $1.56/unit, in-stock, ships globally, 1-piece MOQ.
- Manufacturer
- Texas Instruments
- Package
- SOIC-8
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UCC3801D Datasheet PDF
- Category
- power-management
- Price
- From $1.5600(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Applications
UCC3801D is widely used in AC/DC flyback converters, DC/DC boost and buck regulators, and battery charger circuits. Its low startup current and current-mode control make it ideal for energy-efficient switching power supplies in industrial, telecom, and consumer electronics designs.
Specifications
| Supply Voltage | 5 to 15 V |
| Switching Frequency | Up to 1 MHz |
| Output Gate Drive | 10 mA peak |
| Operating Temperature | -40 to 85 C |
| Control Method | Current Mode PWM |
| Startup Current | 100 uA max |
| Package | SOIC-8 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UCC3801D:
Frequently Asked Questions
What is the UCC3801D and what does it do?
The UCC3801D is a BiCMOS current-mode PWM controller from Texas Instruments. It regulates switching power supplies by sensing inductor or transformer current and adjusting duty cycle accordingly, enabling precise output voltage regulation with inherent cycle-by-cycle current limiting. It operates from a 5V to 15V supply and supports switching frequencies up to 1MHz.
What is the package type and pin count of UCC3801D?
The UCC3801D comes in an SOIC-8 (Small Outline Integrated Circuit, 8-pin) package with 3.9mm body width. This compact SMD package is suited for space-constrained PCB designs. The 8 pins cover COMP, FB, CS, RC, GND, OUT, VCC, and soft-start functions.
What are typical applications for the UCC3801D?
The UCC3801D is commonly used in AC/DC flyback converters, offline SMPS designs, DC/DC boost regulators, and battery charger controllers. Its ultra-low startup current makes it particularly suitable for green-mode power supplies and industrial equipment where standby power consumption must be minimized.
What are good alternatives to UCC3801D?
Pin-compatible and functionally similar alternatives include the UCC3802D (same family, adjustable frequency), UC3842BD (ST Microelectronics, voltage-mode), and NCP1200 (ON Semiconductor, for offline converters). The UCC3801D is part of the UCC380x family which offers variations in supply voltage range and features.
Is the UCC3801D RoHS compliant?
Yes, the UCC3801D is RoHS compliant and lead-free. It operates over an industrial temperature range of -40C to 85C, making it suitable for both commercial and light industrial environments. The extended temperature variant UCC2801D covers -40C to 105C.
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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 |
|---|---|---|
| 1+ | $2.5400 | $2.54 |
| 10+ | $1.8880 | $18.88 |
| 104+ | $1.6900 | $175.76 |
| 297+ | $1.5600 | $463.32 |
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