st890b STMicroelectronics, st890b Datasheet - Page 7

• Manufacturer Part Number: st890b
• Description: 1.2 A Current Limited High Side Power Switch With Thermal Shutdown
• Manufacturer: STMicroelectronics

ST890B, ST890C, ST890D
Table 8.
1. V
I
Symbol
I
SET
LIM
V
T
T
V
V
I
R
V
IN
PROT
HYST
HYST
MAX
I
V
I
V
ULO
OH
SET
SC
ON
/I
I
OL
IH
IL
I
= 3 V, T
bias
SET
A
Electrical characteristics (continued)
Undervoltage
lockout
Undervoltage
lockout hysteresis
ON resistance
Reference voltage
to turn the switch
OFF
Maximum
programmable
output over
current limit
Short circuit
current limit
I
ratio
ON input low level
voltage
ON input high
level voltage
ON input leakage
current
I
FAULT output low
voltage
FAULT output high
voltage
Thermal
protection
Thermal
hysteresis
LIM
SET
= T
Parameter
MIN
to I
bias current
SET
to T
MAX
current
, unless otherwise specified. Typical values are at T
Rising edge
V
V
I
V
0.8V
VI = 5V, OUT connected
to GND, device enabled
into short circuit
I
V
V
V
V
V
V
I
V
I
V
V
V
O
O
O
SINK
SET
FAULT
SET
O
I
I
SET
I
I
I
I
SET
I
= 4.5 V
= 3 V
= 100 mA
= 500 mA
= 2.7 to 5.5 V
= 2.7 to 3.6 V
= 2.7 to 5.5 V
= 5.5 V
= 0
= V
> 1.6 V
Test condition
= 1.4 V
= 1 V
= 1 mA
rise until V
= 1.24 V
A
O
= 5.5 V
I
- V
(1)
O
>
1.178
Min
970
2.0
2.0
2.4
T
A
A
Value
1.2 I
= 25°C
= 25°C
1110
1.24
0.15
Typ
100
130
1.2
0.5
2.4
75
90
15
LIM
Maximum rating
1.5 I
1.302
1300
Max
120
130
2.6
0.8
1
3
1
LIM
Unit
mV
mΩ
mΩ
μA
μA
μA
°C
°C
7/17
V
V
A
A
V
V
V
V