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Power Circuits / Switching Regulator or Controllers / UC3525ADW
Datasheets
UC3525ADW by:
Unitrode Corporation
Texas Instruments
Unitrode Corporation
Not Found

Switching Controller, Voltage-mode, 0.5A, 400kHz Switching Freq-Max, BIPolar, PDSO16, SOIC-16

Part Details for UC3525ADW by Unitrode Corporation

Results Overview of UC3525ADW by Unitrode Corporation

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Applications Consumer Electronics Energy and Power Systems Renewable Energy

UC3525ADW Information

UC3525ADW by Unitrode Corporation is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Available Datasheets

Part # Manufacturer Description Datasheet
UC3525ADWG4 Texas Instruments Regulating Pulse Width Modulators 16-SOIC 0 to 70
UC3525ADWTR Texas Instruments Regulating Pulse Width Modulators 16-SOIC 0 to 70
UC3525ADWTRG4 Texas Instruments Regulating Pulse Width Modulators 16-SOIC 0 to 70

Price & Stock for UC3525ADW

Part # Distributor Description Stock Price Buy
Rochester Electronics UC3525A Regulating Pulse Width Modulators RoHS: Compliant Status: Active Min Qty: 1 22
  • 1 $1.2500
  • 25 $1.2300
  • 100 $1.1800
  • 500 $1.1300
  • 1,000 $1.0600
$1.0600 / $1.2500 Buy Now
ComSIT USA REGULATING PULSE WIDTH MODULATOR Switching Controller, Voltage-mode, 0.5A, 400kHz Switching Freq-Max... , BIPolar, PDSO16 more RoHS: Not Compliant ECCN: EAR99 Stock DE - 305
Stock ES - 0
Stock US - 0
Stock MX - 0
Stock CN - 0
Stock HK - 0
RFQ
Vyrian Other Function Semiconductors 1889
RFQ

Part Details for UC3525ADW

UC3525ADW CAD Models

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UC3525ADW Part Data Attributes

Parametric Data
UC3525ADW Unitrode Corporation
Buy Now Datasheet
Compare Parts:
UC3525ADW Unitrode Corporation Switching Controller, Voltage-mode, 0.5A, 400kHz Switching Freq-Max, BIPolar, PDSO16, SOIC-16
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Rohs Code No
Part Life Cycle Code Transferred
Ihs Manufacturer UNITRODE CORP
Package Description SOIC-16
Reach Compliance Code unknown
Analog IC - Other Type SWITCHING CONTROLLER
Control Mode VOLTAGE-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 35 V
Input Voltage-Min 8 V
Input Voltage-Nom 20 V
JESD-30 Code R-PDSO-G16
JESD-609 Code e0
Number of Functions 1
Number of Terminals 16
Operating Temperature-Max 70 °C
Operating Temperature-Min
Output Current-Max 0.5 A
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP16,.4
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Qualification Status Not Qualified
Surface Mount YES
Switcher Configuration PUSH-PULL
Switching Frequency-Max 400 kHz
Technology BIPOLAR
Temperature Grade COMMERCIAL
Terminal Finish Tin/Lead (Sn/Pb)
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL

UC3525ADW Related Parts

UC3525ADW Frequently Asked Questions (FAQ)

  • The UC3525ADW is a high-frequency switching regulator, and as such, it requires careful PCB design and layout to minimize noise and ensure reliable operation. A recommended layout includes keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and loops. Additionally, it's essential to follow the datasheet's guidelines for pin connections and component placement.

  • Choosing the right inductor for the UC3525ADW involves considering factors such as inductance value, current rating, and core material. A good starting point is to use the inductor selection guide provided in the datasheet, which recommends inductors with a minimum inductance value of 10uH and a current rating of at least 1A. Additionally, consider using a shielded inductor to minimize EMI.

  • While the datasheet specifies a maximum input voltage of 40V, it's essential to note that the IC can handle higher voltages for short durations. However, prolonged exposure to voltages above 40V can cause damage to the IC. It's recommended to add input voltage protection, such as a voltage clamp or a transient voltage suppressor, to ensure reliable operation.

  • Compensating the voltage feedback loop of the UC3525ADW involves adding a compensation network to ensure stability and regulate the output voltage. A recommended compensation network consists of a series resistor and capacitor connected between the output voltage sense pin and the ground pin. The values of these components can be calculated using the datasheet's compensation formula or by using a compensation calculator tool.

  • The UC3525ADW's soft-start feature is a built-in functionality that gradually ramps up the output voltage during startup, reducing inrush current and minimizing the risk of voltage overshoot. To use the soft-start feature, connect a capacitor between the soft-start pin and the ground pin, and adjust the capacitor value to set the desired soft-start time.