ST890D Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
ST890D Datasheet PDF : 17 Pages
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ST890B, ST890C, ST890D
Maximum rating
Table 8. Electrical characteristics (continued)
Value
Symbol
Parameter
Test condition(1)
TA = 25°C
Min
Typ
VULO
Undervoltage
lockout
Rising edge
2.0
2.4
VHYST Undervoltage
100
lockout hysteresis
RON
VSET
ON resistance
VI = 4.5 V
VI = 3 V
Reference voltage IO = 100 mA
to turn the switch VSET rise until VI - VO >
OFF
0.8V
1.178
75
90
1.24
IMAX
Maximum
1.2
programmable
output over
current limit
ISC
Short circuit
current limit
VI = 5V, OUT connected
to GND, device enabled
into short circuit
1.2 ILIM
ILIM/ISET
VIL
ILIM to ISET current IO = 500 mA
ratio
VO > 1.6 V
ON input low level
voltage
VI = 2.7 to 5.5 V
970
1110
VIH
ON input high
VI = 2.7 to 3.6 V
2.0
level voltage
VI = 2.7 to 5.5 V
2.4
II
ON input leakage
current
VI = 5.5 V
ISET bias
VOL
IOH
TPROT
ISET bias current
VSET = 1.24 V
IO = 0A
VI = VO
FAULT output low ISINK = 1 mA
voltage
VSET = 1.4 V
FAULT output high VFAULT = 5.5 V
voltage
VSET = 1 V
Thermal
protection
0.5
0.15
130
THYST
Thermal
hysteresis
15
1. VIN = 3 V, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = 25°C
Unit
Max
2.6
V
mV
120 mΩ
130 mΩ
1.302
V
A
1.5 ILIM A
1300
0.8
V
V
V
1
μA
3
μA
V
1
μA
°C
°C
7/17
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