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TB62731FUG

Features: • Maximum output voltage: Vo 28 V• Mean LED current values set according to external resistor14 mA (typ.) @R_sens = 2.7 20 mA (typ.) @R_sens = 1.8 • Supply power: Up to 320 mW supported• Compact package: SSOP6-P-0.95B, 6 pins• Built-in temperature derating ...

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SeekIC No. : 004512708 Detail

TB62731FUG: Features: • Maximum output voltage: Vo 28 V• Mean LED current values set according to external resistor14 mA (typ.) @R_sens = 2.7 20 mA (typ.) @R_sens = 1.8 • Supply power: Up to ...

TB62731FUG Data Sheet

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Part Number:
TB62731FUG
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:

• Maximum output voltage: Vo 28 V
• Mean LED current values set according to external resistor
14 mA (typ.) @R_sens = 2.7
20 mA (typ.) @R_sens = 1.8
• Supply power: Up to 320 mW supported
• Compact package: SSOP6-P-0.95B, 6 pins
• Built-in temperature derating function: LED current derated automatically depending on temperature
• High power efficiency
Up to 80% of peak power efficiency achieved using recommended components
Ron = 2.0 (typ.) @VIN = 3.2~5.5 V
Built-in low Ron power MOS switch


Pinout

Connection Diagram


Specifications

Characteristics Symbol Rating Unit
Supply voltage

Input voltage		 VCC

VIN		 −0.3~+6.0

−0.3~+VCC + 0.3		 V

V
Pin A (anode) current

Pin A voltage		 Io (A)

Vo (A)		 +270

−0.3~+28		 mA

V
Power dissipation PD 0.41 (IC only)

0.47 (IC mounted on PCB)
(Note)		 W
Saturation thermal resistance Rth (j-a) 1

Rth (j-a) 2		 300 (IC only)

260 (IC mounted on PCB)		 /W
Operating temperature range

Storage temperature range

Maximum junction temperature		 Topr

Tstg

Tj		 −40~+85

−40~+150

125




Note: The power dissipation is derated by 3.8 mW/ from the maximum rating for every 1 exceeding the ambient temperature of 25 (when the IC is mounted on a PCB).




Description

The TB62731FUG is an LED driver that uses a high power efficiency step-up DC-DC converter. The converter turns on/off 2 to 6 white LEDs in series.

The IC incorporates an N-channel MOSFET transistor used for coil-switching and a function that reduces the LED current in response to increase in temperature.

The mean LED current can be easily set using an external resistor.

The IC is ideal as a driver for LED light sources used as liquid crystal backlights for PDAs, cellular phones, and handy terminals.




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