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參數(shù)資料
| 型號： | L9820D |
| 廠商： | 意法半導體 |
| 英文描述： | HIGH SIDE DRIVER |
| 中文描述： | 高邊驅(qū)動器 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大?。?/td> | 58K |
| 代理商： | L9820D |
PIN FUNCTIONS
N.
1
4
5
Name
Description
POWER OUTPUT
POWER SUPPLY
ENABLE INPUT
The device is provided with short circuit protection.
Supply voltage input.
TTL compatible input. High level on this pin means output current ON.
The low level voltage switches off the charge pump, the power stage and
the diagnostic output reducing to the minimum value the quiescent current.
This pin must be connected to ground.
The diagnostic circuit is active in input high level condition. This output
detects with Tipically 50
μ
s delay at T
amb
= 25
°
C the following faults:
– Overvoltage condition.
– Thermal shutdown.
– Short circuit. The power stage current isinternally limited at 1.5A.
The diagnostic output is activelow. The diagnostic delay timeallows to
avoid spurious diagnosys(i.e.: turnON overcurrent, overvoltage spikes etc.).
7
8
GROUND
DIAGNOSTIC FEEDBACK
ELECTRICAL CHARACTERISTICS
(V
S
= 14.4V, –40
°
C
≤
T
j
≤
+85
°
C, unlessotherwisespecified.)
Symbol
V
S
R
on
Parameter
Test Condition
Min.
6
Typ.
Max.
25
0.8
1.2
130
300
4
0.8
Unit
V
μ
A
μ
A
mA
V
V
μ
A
μ
A
V
Operating Supply Voltage
On Resistance
Input > 2V, T
j
= 25
°
C
Input > 2V, Full T range
T
j
< 35
°
C
T
j
= 85
°
C
0.6
I
off
Off State Supply Current
I
on
V
EL
V
EH
I
E
I
leakd
V
satd
On State Supply Current
Enable Low Level
Enable High Level
Enable Current
Diagnostic Output Leakage Current
Diagnostic Output Saturated
Voltage
Diagnostic Delay Time
Output ON Delay Time
Output ON Rise Time
Output OFF Delay Time
Output OFF Fall Time
Overvoltage Detection ON
Overvoltage Hysteresis
Overcurrent Detection ON
Overtemperature Detection ON
Overtemperature Hysteresis
2
0V < Vi <5V
V
CC
= 5V Diagnostic Output High
Isink < 3.5mA
10
10
0.4
t
dd
t
don
t
r
t
doff
t
f
V
don
V
dh
I
don
T
don
T
dh
T
j
= 25
°
C
T
j
= 25
°
C
Tj = 25
°
C
Tj = 25
°
C
Tj = 25
°
C
30
30
100
80
100
μ
s
μ
s
μ
s
μ
s
μ
s
V
V
A
°
C
°
C
25
2
0.5
150
5
1.5
25
50
L9820
3/6
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