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L4992 Datasheet(PDF) 2 Page - STMicroelectronics

Part # L4992
Description  TRIPLE OUTPUT POWER SUPPLY CONTROLLER
PDF  26 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4992 Datasheet(HTML) 2 Page - STMicroelectronics

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ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VIN
Power Supply Voltage on VIN
0 to 25
V
VI
Maximum Pin Voltage to Pins 1, 24, 25, 32
-0.5 to (VIN +5)
V
IIN
Input Current Except V13IN and VIN
-1 to +1
mA
IOUT
Output Current Digital Output
-15 to +15
mA
TJ
Junction Temperature
-55 to 150
°C
THERMAL DATA
Symbol
Parameter
Value
Unit
RTH J-amb
Thermal Resistance Junction -Ambient
60
°C/W
SLOPE
+
-
+
-
+
-
∑
ERROR SUMMING
I5SNS
V5SNS
6
5
VREF
7
COMP5
1
32
31
H5STRAP
H5GATE
H5SRC
30
29
R5GATE
PGND5
Hside
Lside
CONTROL
LOGIC
OVER CURRENT
COMPARATOR
ZERO CROSSING
COMPARATOR
PULSE SKIPPING
COMPARATOR
+
-
+
-
+
-
SOFT
I5SNS
V5SNS
8
SOFT5
SLOPE
+
-
+
-
+
-
∑
ERROR SUMMING
I3SNS
V3SNS
19
20
VREF
18
COMP3
24
25
26
H3STRAP
H3GATE
H3SRC
27
28
R3GATE
PGND3
Hside
Lside
CONTROL
LOGIC
OVER CURRENT
COMPARATOR
ZERO CROSSING
COMPARATOR
PULSE SKIPPING
COMPARATOR
+
-
+
-
+
-
SOFT
I3SNS
V3SNS
17
SOFT3
LINEAR
REGULATOR
SWITCH
COMPARATOR
V5SNS
4.7V
W5SW
REG5
3
4
2
VIN
VREF
VREF BUFFER
OVERVOLT
COMPARATOR
UNDERVOLT
COMPARATOR
POWER MANAGEMENT
&
SYSTEM SUPERVISOR
12
VREF
13
SGND
13V
+
-
+
-
13V UV Comp
16
11
10
14
9
RUN3
RUN5
PWROK
NOSKIP
CRST
V13IN
21
+
-
REG12
22
VREF
OSCILLATOR &
SYNCHRONIZATION
OSC
15
REG12
LDO
D96IN375
+
-
REG5
REG5
BLOCK DIAGRAM
1
2
3
5
6
4
7
8
11 12 13 14 15 16
32
30
31
29 28 27 26 25
19
18
17
24
23
22
20
21
I5SNS
V5SNS
V5SW
VIN
H5STRAP
REG5
COMP5
SOFT5
I3SNS
COMP3
SOFT3
H3STRAP
(*)
REG12
V3SNS
V13IN
D96IN377
910
(*)TO BE CONNECTED TO PIN13
PIN CONNECTION (Top view)
L4992
2/26



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