A5974DTR STMicroelectronics, A5974DTR Datasheet - Page 33

• Manufacturer Part Number: A5974DTR
• Description: IC BUCK ADJ 2.5A 8SOIC
• Manufacturer: STMicroelectronics
• Series: -r
• Type: Step-Down (Buck)r

Specifications of A5974DTR

• Internal Switch(s): -
• Synchronous Rectifier: -
• Number Of Outputs: -
• Voltage - Output: 1.235 V ~ 35 V
• Current - Output: 2.5A
• Frequency - Switching: 250kHz
• Voltage - Input: 4 V ~ 36 V
• Operating Temperature: -
• Mounting Type: *
• Package / Case: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-11424-2

reduce logic pins on the package and to save PCB tracks on the board.
STCF06
The STCF06 is a high-efficiency power supply solution to drive a single-LED flash
in camera phones, PDAs and other battery-powered devices. It is a buck-boost
converter able to guarantee correct LED current control over all possible conditions
of battery voltage and LED forward voltage. The output current control ensures
correct current regulation over the forward voltage spread characteristics of the
flash LED.
All the functions of the device are controlled through the I
Key features
Q
Q
Q
Q
Q
Q
Q
Application example
STEVAL-TLL006V1
Q
Q
Q
Q
Q
Q
Q
1.8 MHz fixed frequency PWM control
Efficiency up to 80%
Full I
LED over-temperature detection and protection with external NTC resistor
Open and shorted LED failure detection and protection
Chip over-temperature detection and protection
Less than 1 μA standby current
Sales code
2
C control
V IN
C I
Board
High-power LED driver demo board for single flash with I
STCF06 (includes motherboard based on uPSD)
AUXL
TMSK
TRIG
ATN
SLC
SDA
ADD PGND PGND
VBAT
PVBAT
2
C bus which helps to
GND
Description
VLX1A
STCF06
VLX1B
RX
2
C interface based on
VLX2
VOUT
FB2S
NTC
FB1
FB2
Power
white
LED
NTC
AN2730: High power LED driver for single
Flash with I
Technical documents
2
C interface
(3 x 3 mm)
TFBGA25
33