ISL97672IRZ 데이터 시트보기 (PDF) - Renesas Electronics
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ISL97672IRZ Datasheet PDF : 17 Pages
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ISL97672
Block Diagram
VIN = 4.5V~26V
45V*,4205mmAA per string
78 (6x13) LEDs
EN
VDC
/FLAG
VIN
REG
Bias
OSC &
fsw
RAMP
Comp
Fau lt
Fla g
(Optional Q1)
FAULT
10uH/3A
O/P Short
Fault
Flag
Imax ILIMIT
Boost SW
Logic
FET
Driver
LX
4.7uF/50V
OVP
OVP
PGND
COMP
RSET
GND
GM
AMP
VSET
+ REF
-
GEN
REF_OVP REF_VSC
Fault/Status Control
Highest VF
String Detect
+
-
PWM0
+
-
Open Ckt,pe Short Ckt
Detects
0
Temp
Sensor
CH0
CH1
CH5
Fault
Flag
1
PWM1
PWM
PWM
GENERATOR
ISL97672
+
-
PWM5
V* VINin >> 61V2V
5
FIGURE 2. ISL97672 BLOCK DIAGRAM
FN7632 Rev.4.00
Sep 8, 2017
Page 2 of 17
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