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Pin connections ST2054
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2 Pin connections
Figure 2. Pin connections (top view)
Table 2. Pin functions
Pln N° Symbol Description
1 GNDA Ground
2 IN1 Input voltage
3 EN1 Enable input. Logic high turns on power switch IN-OUT1
4 EN2 Enable input. Logic high turns on power switch IN-OUT2
5 GNDB Ground
6 IN2 Input voltage
7 EN3 Enable input. Logic high turns on power switch IN-OUT3
8 EN4 Enable input. Logic high turns on power switch IN-OUT4
9 OC4 Overcurrent. Logic output active low IN-OUT4
10 OUT4 Power switch output
11 OUT3 Power switch output
12 OC3 Overcurrent. Logic output active low IN-OUT3
13 OC2 Overcurrent. Logic output active low IN-OUT2
14 OUT2 Power switch output
15 OUT1 Power switch output
16 OC1 Overcurrent. Logic output active low IN-OUT1
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ST2054 Electrical ratings
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3 Electrical ratings
3.1 Absolute maximum ratings
Stressing the device above the rating listed in the “Absolute Maximum Ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of
this specification is not implied. Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
3.2 Recommended operating conditions
Table 3. Absolute maximum ratings
Symbol Parameter Value Unit
V
I
Input voltage range
(1)
1. All voltage are referred to GND
-0.3 to 6 V
V
O
Output voltage range
(1)
-0.3 - (V
I
+ 0.3) V
V
IENX
EN Input voltage range -0.3 to 6 V
I
O
Continuous output current Internally Limited
ESD Electrostatic discharge 2 kV
T
J
Junction Operating Temperature -40 to 125 C
Table 4. Recommended operating conditions
Symbol Parameter Min Typ Max Unit
V
I
Input voltage range
(1)
1. All voltage are referred to GND
2.7 5.5 V
V
O
Output voltage range
(1)
05.5V
I
O
Continuous output current (Per switch) 0 500 mA
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Electrical characteristics ST2054
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4 Electrical characteristics
V
I
= 5.5V, I
O
= rated current, V
IEN
= V
I
, T
J
= 25°C, unless otherwise specified. (See Note 1)
Table 5. Power switch electrical characteristics
Symbol Parameter Test conditions Min Typ Max Unit
R
DS(on)
Static drain-source
ON-state resistance
V
I
= 5V I
O
= 0.5A 80 100
m
V
I
= 5V I
O
= 0.5A, T
J
= 85°C 90 120
V
I
= 5V I
O
= 0.5A, T
J
=125°C 100 135
V
I
= 3.3V I
O
= 0.5A 90 125
V
I
= 3.3V I
O
= 0.5A, T
J
= 85°C 110 145
V
I
= 3.3V I
O
= 0.5A, T
J
= 125°C 120 160
t
r
Output rise time
V
I
= 5.5V
R
L
= 10, C
L
= 1µF
2.5
ms
V
I
= 2.7V 3
t
f
Output fall time
V
I
= 5.5V 0.3
ms
V
I
= 2.7V 0.2
Table 6. Enable Input ENx characteristics
Symbol Parameter Test conditions Min Typ Max Unit
V
IH
High level input
voltage
V
I
= 2.7V to 5.5V 2 V
V
IL
Low level input
voltage
V
I
= 4.5V to 5.5V 0.8
V
V
I
= 2.7V to 4.5V 0.4
I
I
Input current V
IENX
= V
I
or 0V -0.5 0.5 µA
t
on
Turn-on time R
L
= 10 C
L
=100µF20ms
t
off
Turn-off time R
L
= 10 C
L
=100µF40ms
Table 7. Current limit characteristics
Symbol Parameter Test conditions Min Typ Max Unit
I
OS
Short circuit output
current
V
I
= 5V, OUT connected to GND,
device enabled into short circuit
0.7 1 1.3 A
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ST2054BD

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
IC POWER DISTRIB SW 500MA 16SOIC
Lifecycle:
New from this manufacturer.
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