參數(shù)資料
型號(hào): L4992
廠商: 意法半導(dǎo)體
英文描述: TRIPLE OUTPUT POWER SUPPLY CONTROLLER
中文描述: 三路輸出電源控制器
文件頁(yè)數(shù): 5/26頁(yè)
文件大?。?/td> 296K
代理商: L4992
ELECTRICAL CHARACTERISTICS
(Continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
HIGH AND LOW SIDE GATE DRIVER (BOTH SECTIONS)
I
25
, I
27,
I
32
, I
30
Sink Output Peak Current
R
H
R
DSON
Resistance (or Impedance)
R
L
R
DSON
resistance (or Impedance)
V
OH
Output High Voltage
Source Output Peak Current
C
LOAD
= 1nF
C
LOAD
= 1nF
Driver OUT HIGH
Driver OUT LOW
HSTRAP = REG5
I
SOURCE
= 10mA; HSRC = GND
HSTRAP = REG5
I
SINK
= 10mA HSRC = GND
0.2
0.2
0.5
0.5
A
A
V
7
5
4.40
5.3
5.61
V
OL
Output Low Voltage
0.5
V
T
CC
Cross-Conduction Delay
30
75
130
ns
12V LINEAR REGULATOR SECTION
V
21
Input Voltage Range
V
22
Output Voltage
I
22
Current Limiting
Short Circuit Current
V
CP
Input Voltage Clamp
"One Shot" Activation Threshold
"One Shot" Pulse
13
20
V
V
I
22
= 0 to 120mA
V
REG12
= 12V
V
REG12
= 0V
I
CLAMP
= 100
μ
A
V
13IN
Falling
11.54
120
150
16
12.88
12.0
12.48
mA
mA
V
V
μ
s
13.7
14.52
1.5
INTERNAL REGULATOR (VREG5) AND REFERENCE VOLTAGE
V
3
VREG5 Output Voltage
V
IN
= 5.5 to 20V
I
LOAD
= 0 to 5mA
VREG5 = 5.3V
V
REG5
= 6V
4.5
5.3
5.61
V
I
3
Total Current Capability
25
70
4.3
3.35
3.32
mA
Switch-Over Threshold Voltage
Reference Voltage
4.53
3.39
3.39
4.7
3.43
3.46
V
V
V
V
12
V
IN
= 5.5 to 20V
I
LOAD
= 1 to 5mA
I
12
Source Current at Reference
Voltage
5
mA
POWER GOOD AND ENABLE FUNCTION
V
16
, V
11
RUN3, RUN5, Enable Voltage
V
16
, V
11
RUN3, RUN5, Disable Voltage
T
10
Power Good Delay
T
27
, T
30
Shutdown Delay Time before
Low Side Activation
(Except Over-Voltage Fault)
CRST Timing Rate
Power Good High Level
Power Good LowLevel
SYNCHRONIZATION
Synchronisation Pulse Width
Synchronisation Input Voltage
(Falling Edge Transition)
HIGH LEVEL
LOW LEVEL
C
CRST
= 100nF
C
CRST
= 100nF,
2.4
V
V
0.8
240
240
160
160
200
200
ms
ms
2
ms/nF
V
V
I
PWROK
= 40
μ
A
I
PWROK
= 320
μ
A
4.1
0.4
400
5
ns
V
L4992
5/26
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