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TPS61061

Features: · LED Driver With Integrated Overvoltage and Short-Circuit Protection · 2.7-V to 6.0-V Input Voltage Range· 500-mV/250-mV Feedback Voltage· TPS61060 Powers Up to 3 LEDs · TPS61061 Powers Up to 4 LEDs · TPS61062 Powers Up to 5 LEDs · Digital Still Camera · Handheld Devices· Digital Bright...

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SeekIC No. : 004527060 Detail

TPS61061: Features: · LED Driver With Integrated Overvoltage and Short-Circuit Protection · 2.7-V to 6.0-V Input Voltage Range· 500-mV/250-mV Feedback Voltage· TPS61060 Powers Up to 3 LEDs · TPS61061 Powers U...

TPS61061 Data Sheet

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Part Number:
TPS61061
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

· LED Driver With Integrated Overvoltage and  Short-Circuit Protection
· 2.7-V to 6.0-V Input Voltage Range
· 500-mV/250-mV Feedback Voltage
· TPS61060 Powers Up to 3 LEDs
· TPS61061 Powers Up to 4 LEDs
· TPS61062 Powers Up to 5 LEDs
· Digital Still Camera
· Handheld Devices
· Digital Brightness Control on ILED
· 1.0-MHz Fixed Switching Frequency
· 400-mA Internal Power MOSFET Switch
· LEDs Disconnected During Shutdown
· Operates With Small-Output Capacitors Down to 220 nF


Application

· White LED Driver
· Cellular Phones
· PDA, Pocket PC, and Smart Phones
· Digital Still Camera
· Handheld Devices


Pinout

Connection Diagram


Specifications

    UNIT
VIN(2) SupplyVvoltages on pin 0.3 to 7 V
EN, ILED, FB(2) Voltages on pins 0.3 V to 7 V
OUT(2) Voltage on pin 33 V
  Voltage on pin 33 V
  Continuous power dissipation See Dissipation Rating Table
  Operating junction temperature range 40°C to 150°C
  Storage temperature range 55°C to 150°C
  Lead temperature (soldering, 10 sec) 260°C



Description

The TPS61060/61/62 is a high-frequency, synchronous boost converter with constant current output to drive up to 5 white LEDs. For maximum safety, the TPS61060/61/62 features integrated overvoltage and an advanced short-circuit protection when the output is shorted to ground. The device operates with 1-MHz fixed switching frequency to allow small external components and to simplify possible EMI problems. The TPS61060/61/62 comes with three different overvoltage protection thresholds (14 V/18 V/23 V) to allow inexpensive and small-output capacitors with lower
voltage ratings. The LED current is initially set with the external sense resistor Rs, and the feedback voltage is regulated to 500 mV or 250 mV, depending on the ILED pin configuration. Digital brightness control is implemented by applying a simple digital signal to the ILED pin. Alternatively, a PWM signal up to 1 kHz can be applied to the enable pin to control the LED brightness. During shutdown, the output of TPS61060/61/62 is disconnected from the input to avoid leakage current through the LEDs.




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