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L5994 Datasheet(PDF) 2 Page - STMicroelectronics

Part # L5994
Description  ADJUSTABLE TRIPLE OUTPUT POWER SUPPLY CONTROLLER
PDF  8 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L5994 Datasheet(HTML) 2 Page - STMicroelectronics

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ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
VIN
Power Supply Voltage on VIN
0to 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
I1SNS
V1SNS
6
5
VREF
7
COMP1
1
32
31
H1STRAP
H1GATE
H1SRC
30
R1GATE
Hside
Lside
CONTROL
LOGIC
OVER CURRENT
COMPARATOR
ZERO CROSSING
COMPARATOR
PULSE SKIPPING
COMPARATOR
+
-
+
-
+
-
SOFT
I1SNS
V1SNS
8
SOFT1
SLOPE
+
-
+
-
+
-
∑
ERROR SUMMING
I2SNS
V2SNS
19
20
VREF
18
COMP2
24
25
26
H2STRAP
H2GATE
H2SRC
27
28
R2GATE
PGND
Hside
Lside
CONTROL
LOGIC
OVER CURRENT
COMPARATOR
ZERO CROSSING
COMPARATOR
PULSE SKIPPING
COMPARATOR
+
-
+
-
+
-
SOFT
I2SNS
V2SNS
17
SOFT2
LINEAR
REGULATOR
SWITCH
COMPARATOR
V5SW
4.7V
W5SW
PREG5
29
SREG5
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
RUN2
RUN1 PWROK1
NOSKIP
CRST
V13IN
21
REG12
22
VREF
OSCILLATOR &
SYNCHRONIZATION
OSC
15
REG12
LDO
D98IN864
+
-
REG5
PREG5
23
PWROK2
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
I1SNS
V1SNS
V5SW
VIN
H1STRAP
SREG5
COMP1
SOFT1
I2SNS
COMP2
SOFT2
H2STRAP
PWROK2
REG12
V2SNS
V13IN
D98IN863A
910
PIN CONNECTION (Top view)
L5994
2/8



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