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ISL6721 Datasheet(PDF) 3 Page - Renesas Technology Corp

Part # ISL6721
Description  Flexible Single-Ended Current Mode PWM Controller
PDF  23 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL6721 Datasheet(HTML) 3 Page - Renesas Technology Corp

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ISL6721
FN9110 Rev 9.00
Page 3 of 23
May 20, 2016
Functional Block Diagram
FIGURE 1. FUNCTIONAL BLOCK DIAGRAM
VREF
SS
12k
ON
ON
ON
30k
100k
5k
4.5k
20k
VCC
ISENSE
ISET
COMP
SS
OV
UV
GATE
SLOPE
VFB
PGND
VC
SYNC
RTCT
LGND
VREF
SOFT-START
CHARGE
CURRENT
FAULT
LATCH
PWM
COMPARATOR
SET DOMINANT
SS LOW
0.8
OVERCURRENT
SHUTDOWN
DELAY
SS CLAMP
2.5V
ENABLE
OC LATCH
SS LOW
COMPARATOR
VREF
UV COMPARATOR
4.65V
4.375V
1mA
4V
3.0V
1.5V
OSCILLATOR
COMPARATOR
70µA
3.0V
BLANKING
COMPARATOR
OC DETECT
SS CHARGED
+
-
START/STOP
UV COMPARATOR
VREF
5V
1%
+-
BG
+
-
100mV
+
+
S
0.1
53µA
+
-
ERROR
AMPLIFIER
+
-
1/3
VREF
+
-
ON
VREF
+
-
VREF
15µA
+
-
25µA
S
R
Q
Q
+
-
270mV
S
R
Q
Q
+
-
OVERCURRENT
COMPARATOR
100ns
BLANKING
+
-
START
+
-
VREF
+
-
2.50V
1.45V
BG
+
-
36k
+
-
2V
Q
Q
50µs
RETRIGGERABLE
ONE SHOT
SYNC IN
SYNC OUT
EXT SYNC BLANKING
NO EXT SYNC
CLK OUT
BI-DIRECTIONAL
SYNCHRONIZATION
OSC IN
SS CHARGE
VOLTAGE CLAMP
THERMAL
PROTECTION
RESTART
DELAY
S
R
Q
Q



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