UC3524AN Texas Instruments In Stock
UC3524AN is a high-performance regulating pulse width modulator (PWM) controller IC by Texas Instruments. Key specs: 100kHz oscillator frequency, 5.1V reference voltage, dual output drivers with 100mA sink/source capability. From $1.38, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $1.3800(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Regulated PWM output with adjustable duty cycle up to 45% per output
- Integrated 5.1V precision voltage reference for stable operation
- Dual totem-pole output drivers capable of 100mA sink and source current
- Built-in oscillator with frequency set by external R/C network up to 100kHz
- Current limiting and shutdown protection for robust power supply designs
- Wide supply voltage range of 8V to 40V for versatile application support
Applications
UC3524AN is widely used in DC-DC converter and switching power supply designs, including push-pull, half-bridge, and full-bridge topologies. It is commonly deployed in offline AC-DC power supplies, battery chargers, and industrial motor drive controllers where precise PWM regulation is required. The IC also finds use in UPS systems and telecom power modules demanding high reliability and adjustable frequency control.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum oscillator frequency of the UC3524AN?
The UC3524AN supports an oscillator frequency of up to 100kHz, set by an external resistor and capacitor connected to the RT and CT pins. This allows designers to optimize switching frequency for efficiency and component size in power supply applications.
What are the typical applications for the UC3524AN?
The UC3524AN is commonly used in switching power supplies, DC-DC converters (push-pull, half-bridge, full-bridge), offline AC-DC power supplies, battery chargers, UPS systems, and industrial motor drive controllers. Its dual PWM outputs make it ideal for transformer-coupled topologies.
What is the output drive capability of the UC3524AN?
The UC3524AN features dual totem-pole output drivers, each capable of sinking and sourcing up to 100mA of current. This allows direct drive of power MOSFETs or bipolar transistors without additional buffer stages in most low-to-medium power designs.
What is the supply voltage range for the UC3524AN?
The UC3524AN operates over a wide supply voltage range of 8V to 40V, making it suitable for a broad range of industrial and commercial power conversion applications where input voltages may vary significantly.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.2900 | $2.29 |
| 4+ | $2.1450 | $8.58 |
| 500+ | $1.5600 | $780.00 |
| 1000+ | $1.4700 | $1470.00 |
| 10000+ | $1.3800 | $13800.00 |
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