參數(shù)資料
型號: ISL97632
廠商: Intersil Corporation
元件分類: LED驅(qū)動器
英文描述: White LED Driver with Digital Dimming(白色LED驅(qū)動器)
中文描述: 白光LED與數(shù)字調(diào)光(白色發(fā)光二極管驅(qū)動器驅(qū)動程序)
文件頁數(shù): 3/9頁
文件大小: 175K
代理商: ISL97632
3
FN9239.2
April 10, 2007
Block Diagram
Pin Descriptions
PWM LOGIC
CONTROLLER
GM
AMPLIFIER
10 - 186mV
PWM
COMPARATOR
VIN
EN
LX
GND
FB
RSET
C
OUT
L
VIN (2.4V to 5.5V)
2 to 6 LEDs
CIN
ISL97632
V
OUT
SERIAL
INTERFACE
BANDGAP
REFERENCE
GENERATOR
SDIN
FBSW
EN
FET
DRIVER
GM AMP
COMPENSATION
CURRENT
SENSE
1.4MHZ OSCILLATOR AND RAMP
GENERATOR
PIN
NUMBER
PIN
NAME
DESCRIPTION
1
GND
Ground Pin. Connect to local ground.
2
VIN
Input Supply Pin. Connect to the input supply voltage, the inductor and the input supply decoupling
capacitor.
3
EN
Enable Pin. Connect to enable signal to turn-on or off the device. Active High.
4
SDIN
Single-Wire XSD Digital Interface.
5
FB
Feedback Pin. Connect to the cathode of bottom LED and the sense resistor.
6
FBSW
Optional FB Disconnect Switch.
7
VOUT
Output Pin. Connect to the anode of the top LED and the output filter capacitor.
8
LX
Switching Pin. Connect to inductor.
ISL97632
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