UC1525AN Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The UC1525AN is a high-performance PWM switching controller IC from Texas Instruments designed for switch-mode power supplies. It features an oscillator with adjustable frequency up to 400 kHz, internal reference voltage, and soft-start control for reliable power conversion. Available in DIP package, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- UC1525AN Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Adjustable oscillator frequency up to 400 kHz enabling high-frequency switch-mode power supply designs
- Built-in soft-start control and shutdown pin for safe power sequencing and overcurrent protection
- Dual-In-Line DIP package with wide operating temperature range suitable for industrial power converter applications
Applications
The UC1525AN is widely used in switch-mode power supply (SMPS) designs including forward converters, flyback converters, and push-pull topology power systems. It is commonly deployed in industrial power equipment, telecom power supplies, and DC-DC converters requiring precise PWM control. The integrated oscillator and reference voltage make it a versatile controller for offline and isolated power conversion circuits.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UC1525AN:
Switching Controller, Voltage-mode, 0.5A, 500kHz Switching Freq-Max, BIPolar, CDIP16
Frequently Asked Questions
What is the maximum oscillator frequency of the UC1525AN?
The UC1525AN oscillator frequency is adjustable and can reach up to 400 kHz by selecting appropriate timing resistor and capacitor values, enabling compact high-frequency switch-mode power supply transformer designs.
What package does the UC1525AN come in?
The UC1525AN is available in a 16-pin Dual-In-Line (DIP) through-hole package, which is easy to prototype with and well-suited for industrial environments where through-hole assembly is preferred over surface-mount.
What are common applications for the UC1525AN?
The UC1525AN is commonly used in forward converter, flyback, push-pull, and half-bridge switch-mode power supply topologies. It is also suitable for motor drives and DC-DC converter designs requiring adjustable duty cycle PWM control with soft-start capability.
Is the UC1525AN compatible with other UC25xx family controllers?
Yes, the UC1525AN is part of the UC15xx/UC25xx/UC35xx PWM controller family from Texas Instruments. It is functionally equivalent to UC2525A and UC3525A with the main difference being the operating temperature range, making cross-family substitution straightforward in many designs.
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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.
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