參數(shù)資料
型號(hào): L5993
廠商: 意法半導(dǎo)體
英文描述: CONSTANT POWER CONTROLLER
中文描述: 恒功率控制器
文件頁數(shù): 4/22頁
文件大?。?/td> 200K
代理商: L5993
ELECTRICAL CHARACTERISTICS
(continued.)
Symbol
OUTPUT SECTION
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Collector Leakage
Fall Time
V
CC
= 20V V
C
= 24V
C
O
= 1nF
C
O
= 2.5nF
C
O
= 1nF
C
O
= 2.5nF
V
CC
= 0V to V
CCON
; I
sink
= 10mA
2
20
60
μ
A
ns
ns
ns
ns
V
20
35
50
70
Rise Time
100
UVLO Saturation
1.0
SUPPLY SECTION
V
CCON
V
CCOFF
V
hys
I
S
Startup voltage
Minimum Operating Voltage
ULVO Hysteresis
Start Up Current
14
9
4.5
40
15
10
5
75
16
11
V
V
V
μ
A
Before Turn-on at:
V
CC
= V
CCON
- 0.5V
CT = 1nF,R
T
= 13.3k
, C
O
=1nF
(After turn on), CT = 1nF,
R
T
= 13.3k
, C
O
= 0nF
I
8
= 20mA
120
I
op
Operating Current
9
13
mA
I
q
Quiescent Current
7.0
10
mA
V
Z
Zener Voltage
21
25
30
V
SYNCHRONIZATION SECTION
Master Operation
I
SOURCE
= 0.8mA
Vclock = 3.5V
Slave Operation
Low Level
High Level
VSYNC = 3.5V
V
1
I
1
Clock Amplitude
Clock Source Current
4
3
V
7
mA
V
1
Sync Pulse
1
V
V
3.5
0.5
I
1
Sync Pulse Current
mA
OVER CURRENT PROTECTION
V
t
Fault Threshold Voltage
DISABLE SECTION
Shutdown threshold
I
SH
Shutdown Current
CONSTANT POWER
1.1
1.2
1.3
V
2.4
2.5
330
2.6
V
μ
A
V
CC
= 15V
6
8
20
30
V14 = 0, Pin2 = open
Tj = 25
°
C
0
4
8
12
16
20
24
0
0.05
0.1
0.15
0.2
4
Vcc [V]
Iq [mA]
28
Figure 1. Quiescentcurrent vs. inputvoltage.
0
4
8
12
16
20
24
0
50
100
150
200
250
300
350
Vcc [V]
Iq [
μ
A]
V14 = Vref
Tj = 25
°
C
Figure2. Quiescentcurrent vs.input voltage
(afterdisable).
L5993
4/22
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