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ST890_05 PDF预览

ST890_05

更新时间: 2022-04-23 23:00:11
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意法半导体 - STMICROELECTRONICS /
页数 文件大小 规格书
9页 444K
描述
1.2A CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWN

ST890_05 数据手册

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ST890  
Table 6: Electrical Characteristics (V =3V, T = T  
to T , unless otherwise specified. Typical val-  
MAX  
IN  
A
MIN  
ues are at T = 25 °C)  
A
Symbol  
Parameter  
Test Conditions  
Min.  
Typ.  
Max.  
5.5  
Unit  
V
V
Operating Voltage  
I
=1mA  
D
2.7  
I
I
ON Quiescent Supply  
Current  
V = 5V,  
ON=GND  
I =0  
O
13  
25  
µA  
CC  
I
I
OFF Quiescent Supply  
Current  
ON=IN  
V = V =5.5V  
OUT  
1
5
µA  
(CCOFF)  
I
ON=IN  
V = 5.5V  
V =0  
O
I
V
Undervoltage Lockout  
Rising Edge  
2.0  
2.4  
2.6  
V
ULO  
V
Undervoltage Lockout  
Hysteresys  
100  
mV  
HYST  
R
ON Resistance  
V = 4.5V  
75  
90  
120  
130  
mΩ  
ON  
I
V = 3V  
I
V
Reference Voltage to Turns  
The Switch OFF  
I
=100mA V  
rise until V - V > 0.8V  
1.178  
970  
1.24  
1.302  
V
A
A
SET  
O
SET  
I
O
I
Maximum Output Current  
Limit  
1.2  
MAX  
I
Short Circuit Current Limit  
1.2 I  
LIM  
SC  
I /I  
I
to I  
Current Ratio  
I
=500mA V > 1.6V  
1110  
1300  
0.8  
O
SET  
IL  
O
SET  
O
O
V
ON Input Low Level Voltage V = 2.7 to 5.5V  
V
V
I
V
ON Input High Level  
Voltage  
V = 2.7 to 3.6V  
2.0  
2.4  
IH  
I
V = 4.5 to 5.5V  
I
I
ON Input Leakage Current V = 5.5V  
1
3
µA  
µA  
V
I
I
I
I
Bias Current  
V
= 1.24V I =0A  
V = V  
0.5  
SET  
SET  
SET  
O
I
O
V
FAULT Output Low Voltage  
I
=1mA V  
SET  
= 1.4V  
V
0.15  
OL  
SINK  
I
FAULT Output High Voltage V  
Thermal Protection  
=5.5V  
= 1V  
SET  
1
µA  
°C  
°C  
OH  
FAULT  
T
T
130  
15  
PROT  
HYST  
Thermal Hysteresys  
Table 7: Timing Characteristics (V =3V, T = T  
to T  
, unless otherwise specified. Typical val-  
IN  
A
MIN  
MAX  
ues are at T = 25 °C)  
A
Symbol  
Parameter  
Test Conditions  
20% Current Overdrive, V = 5V  
Min.  
Typ.  
Max.  
Unit  
t
Slow Current Loop  
Response Time  
5
µs  
RESP  
CC  
Fast Current Loop  
Response Time  
2
µs  
µs  
t
Turn ON Time  
V = 5V,  
I
I
=500mA  
=500mA  
25  
50  
2
50  
10  
ON  
I
O
O
V = 3V,  
I
t
Turn OFF Time  
V = 5V  
1
µs  
OFF  
I
3/9  

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