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L5993 Datasheet(PDF) 4 Page - STMicroelectronics

Part # L5993
Description  CONSTANT POWER CONTROLLER
PDF  22 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L5993 Datasheet(HTML) 4 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (continued.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
OUTPUT SECTION
Collector Leakage
VCC = 20V VC = 24V
2
20
µA
Fall Time
CO = 1nF
CO = 2.5nF
20
35
60
ns
ns
Rise Time
CO = 1nF
CO = 2.5nF
50
70
100
ns
ns
UVLO Saturation
VCC =0V to VCCON;Isink = 10mA
1.0
V
SUPPLY SECTION
VCCON
Startup voltage
14
15
16
V
VCCOFF
Minimum Operating Voltage
9
10
11
V
Vhys
ULVO Hysteresis
4.5
5
V
IS
Start Up Current
Before Turn-on at:
VCC =VCCON - 0.5V
40
75
120
µA
Iop
Operating Current
CT = 1nF,RT = 13.3k
Ω,CO
=1nF
913
mA
Iq
Quiescent Current
(After turn on), CT = 1nF,
RT = 13.3k
Ω,CO = 0nF
7.0
10
mA
VZ
Zener Voltage
I8 = 20mA
21
25
30
V
SYNCHRONIZATION SECTION
Master Operation
V1
Clock Amplitude
ISOURCE = 0.8mA
4
V
I1
Clock Source Current
Vclock = 3.5V
3
7
mA
Slave Operation
V1
Sync Pulse
Low Level
1
V
High Level
3.5
V
I1
Sync Pulse Current
VSYNC = 3.5V
0.5
mA
OVER CURRENT PROTECTION
Vt
Fault Threshold Voltage
1.1
1.2
1.3
V
DISABLE SECTION
Shutdown threshold
2.4
2.5
2.6
V
ISH
Shutdown Current
VCC = 15V
330
µA
CONSTANT POWER
6
8
20
30
V14 = 0, Pin2 = open
Tj = 25
°C
04
8
12
16
20
24
0
0.05
0.1
0.15
0.2
4
Vcc [V]
Iq [mA]
28
Figure 1. Quiescent current vs. input voltage.
0
4
8
12162024
0
50
100
150
200
250
300
350
Vcc [V]
Iq [
µA]
V 14 = Vref
Tj = 25
°C
Figure 2. Quiescent current vs. input voltage
(after disable).
L5993
4/22



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