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參數(shù)資料
| 型號： | ISL97801ARZ-TK |
| 廠商： | INTERSIL CORP |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | High Power LED Driver |
| 中文描述： | LED DISPLAY DRIVER, PQCC20 |
| 封裝： | 4 X 4 MM, ROHS COMPLIANT, PLASTIC, QFN-20 |
| 文件頁數(shù)： | 9/19頁 |
| 文件大?。?/td> | 707K |
| 代理商： | ISL97801ARZ-TK |
9
FN6428.1
April 2, 2007
Pin Descriptions
PIN
NAME
DESCRIPTION
1
VDC
Internally regulated 5V supply, tracks V
IN
for input voltages less than 5V. LDO output can also be biased with
external supply if VIN is <5.5V. A minimum of 3.3μF decoupling capacitor is needed in this pin.
2
VHI
Power FET gate drive supply. Can be biased with external supply if Vin is <5.5V
3
OVP
Overvoltage monitor input; tie to VOUT for normal operation
4
SWD1
NMOS power FET drain
5
SWD2
NMOS power FET drain
6
BUCK/BOOSTN Tie to GND for BOOST operation and to VDC for Buck operation
7
LEVEL
Sets LED bias current level; VFB(nominal) = VLEVEL/5
8
TEMP
Temperature reference, tie to GND to disable temperature compensation
9
FB
LED current feedback
10
TMAX
Maximum LED temperature set point; if TEMP voltage exceeds TMAX, FB set point will be reduced
11
SWS2
NMOS power FET source
12
SWS1
NMOS power FET source
13
EN/PWM
Chip enable and light modulation PWM dimming input
14
MODE
Digital Input; tie to GND to set FB reference to 400mV, tie to VDC to control FB reference with LEVEL input
15
ENL
LED load isolation MOS gate driver
16
VBAT
Input supply monitor
17
NC
Leave floating (internally connected)
18
GND
Ground return and FB ground reference
19
FAULT
Gate drive of fault protection FET. Driven low under fault conditions
20
VIN
Input supply
ISL97801
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