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LM3525

Features: ` 1 ms Fault Flag Delay During Hot-Plug Events` Smooth Turn-On Eliminates Inrush Induced Voltage Drop` UL Recognized Component: REF # 205202` 1A Nominal Short Circuit Output Current Protects Notebook PC Power Supplies` Thermal Shutdown Protects Device in Direct Short Condition` 500mA Min...

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SeekIC No. : 004395370 Detail

LM3525: Features: ` 1 ms Fault Flag Delay During Hot-Plug Events` Smooth Turn-On Eliminates Inrush Induced Voltage Drop` UL Recognized Component: REF # 205202` 1A Nominal Short Circuit Output Current Protec...

LM3525 Data Sheet

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Part Number:
LM3525
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/26

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Product Details

Description



Features:

` 1 ms Fault Flag Delay During Hot-Plug Events
` Smooth Turn-On Eliminates Inrush Induced Voltage Drop
` UL Recognized Component: REF # 205202
` 1A Nominal Short Circuit Output Current Protects Notebook PC Power Supplies
` Thermal Shutdown Protects Device in Direct Short Condition
` 500mA Minimum Continuous Load Current
` Small SO-8 Package Minimizes Board Space
` 2.7V to 5.5V Input Voltage Range
`Switch Resistance £ 120 mW Max. at VIN = 5V
` 1A Max Standby Current
` 100 A Max Operating Current
` Undervoltage Lockout (UVLO)




Application

·Universal Serial Bus (USB) Root Hubs including Desktop and Notebook PC
· USB Monitor Hubs
· Other Self-Powered USB Hub Devices
· High Power USB Devices Requiring Inrush Limiting
· General Purpose High Side Switch Applications




Pinout

Connection Diagram




Specifications

Channels 1 Channels
Switch On Resistance 0.08 Ohm
Output Current 500 mA
Input Min Voltage 2.7 Volt
Input Max Voltage 5.5 Volt
Quiescent Current 0.001 mA
Enable Control Active Low, Active High
Temperature Min -40 deg C
Temperature Max 125 deg C
RegType Switch
View Using Catalog


Supply Voltage ........ −0.3V to 6.0V
Output Voltage........ −0.3V to 6.0V
Voltage at All Other Pins ..−0.3V to 5.5V
Power Dissipation (TA = 25°C)
(Note 2) .............. 700 mW
TJMAX (Note 2)............ 150°C




Description

The LM3525 provides Universal Serial Bus standard power switch and over-current protection for all host port applications. The single port device is ideal for Notebook PC and Handheld PC applications that supply power to one port.

A 1 ms delay on fault flag output prevents erroneous overcurrent reporting caused by inrush currents during the hot-plug events.

The LM3525 accepts an input voltage between 2.7V and 5.5V allowing use as a device-based inrush current limiter for 3.3V USB peripherals, as well as Root and Self-Powered Hubs at 5.5V. The Enable input accepts both 3.3V and 5.0V logic thresholds.

The small size, low RON, and 1 ms fault flag delay make the LM3525 a good choice for root hubs as well as ganged power control in space-critical self-powered hubs.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM3525M-H CS065 2 34108 59 0 3862000 1 1095853045
LM3525M-L CS065 2 34108 59 0 3862000 1 1095853045
LM3525MX-H CS065 2 34108 59 0 3862000 1 1095853045
LM3525MX-L CS065 2 34108 59 0 3862000 1 1095853045

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


More Application Notes

Title Size in Kbytes Date
AN-292: Application Note 292 Applications of the LM3524 Pulse-Width-Modulator 239 Kbytes 3-Oct-02 Download
AN-715: Application Note 715 LM385 Feedback Provides Regulator Isolation 50 Kbytes 3-Oct-02 Download
AN-1823: Application Note 1823 LM3528 Evaluation Board 869 Kbytes 4-Aug-08 Download
AN-272: Application Note 272 Op Amp Booster Designs 382 Kbytes 2-Oct-02 Download
AN-288: Application Note 288 System-Oriented DC-DC Conversion Techniques 405 Kbytes 3-Oct-02 Download
AN-293: Application Note 293 Control Applications of CMOS DACs 385 Kbytes 4-Oct-04 Download
AN-694: Application Note 694 A DMOS 3A, 55V, H-Bridge: The LMD18200 408 Kbytes 26-Sep-02 Download
AN-694 (Japanese): Application Note 694 A DMOS 3A, 55V, H-Bridge: The LMD18200
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram">		 400 Kbytes

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