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STCF06TBR Datasheet

  • STCF06TBR

  • 1.5 A white LED driver with IC interface

  • 33頁(yè)

  • STMICROELECTRONICS   STMICROELECTRONICS

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STCF06
1.5 A white LED driver with I虜C interface
Features
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Buck-boost DC-DC converter
Drives one power LED up to:
鈥?1.5 A between 3.5 V to 5.5 V
鈥?1.3 A between 3.0 V to 5.5 V
鈥?1 A between 2.7 V to 5.5 V
Efficiency up to 80%
Output current control
1.8 MHz fixed frequency PWM
Full I虜C control
Operational modes:
鈥?Shutdown mode
鈥?Ready mode + auxiliary red LED
鈥?Ready mode + NTC
鈥?Flash mode: up to 1.5 A
鈥?Torch mode: up to 370 mA
Soft and hard triggering of flash
Flash and torch dimming with 16 exponential
values
Dimmable red LED indicator auxiliary output
Internally or externally timed flash operation
Digitally programmable safety time-out in flash
mode
LED over temperature detection and protection
with external NTC resistor
Open and shorted LED failure detection and
protection
Chip over temperature detection and protection
< 1 碌A(chǔ) shutdown current
Package 3x3 mm TFBGA25
TFBGA25 (3x3)
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Applications
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Cell phones and smart phones
Camera flashes/strobe
PDAs and digital still cameras
Description
The STCF06 is a high efficiency power supply
solution to drive a single flash LED in camera
phones, PDAs and other battery powered
devices. It is a buck-boost converter able to
guarantee a proper LED current control over all
possible conditions of battery voltage and LED
forward voltage. The output current control
ensures a good current regulation over the
forward voltage spread characteristics of the flash
LED.
All the functions of the device are controlled
through the I虜C bus which helps to reduce logic
pins on the package and to save PCB tracks on
the board. Hard and soft-triggering of flash are
both supported. The device includes many
functions to protect the chip and the power LED,
such as: soft start control, chip over temperature,
open and shorted LED detection and protection.
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Table 1. Device summary
Order code
STCF06TBR
Package
TFBGA25 (3x3 mm)
Packaging
3500 parts per reel
May 2008
Rev 2
1/33
www.st.com
33

STCF06TBR 產(chǎn)品屬性

  • STCF06 View All Specifications

  • 3,500

  • 集成電路 (IC)

  • PMIC - LED 驅(qū)動(dòng)器

  • -

  • -

  • -

  • 1

  • 是

  • 閃燈/白光

  • 白色 LED

  • 1.8MHz

  • 2.7 V ~ 5.5 V

  • 2.5 V ~ 5 V

  • 表面貼裝

  • 25-µTFBGA

  • 25-TFBGA（3x3）

  • 帶卷 (TR)

  • -40°C ~ 85°C

  • 497-10051-ND - BOARD EVAL LED DRIVER STCF06

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