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A2557ELB Datasheet(PDF) 3 Page - Allegro MicroSystems

Part No. A2557ELB
Description  PROTECTED QUAD LOW-SIDE DRIVER WITH FAULT DETECTION & SLEEP MODE
Download  12 Pages
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Maker  ALLEGRO [Allegro MicroSystems]
Homepage  http://www.allegromicro.com
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A2557ELB Datasheet(HTML) 3 Page - Allegro MicroSystems

 
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2557
PROTECTED QUAD DRIVER
WITH FAULT DETECTION
& SLEEP MODE
www.allegromicro.com
3
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Output Leakage Current*
ICEX
VO = 60 V, VI = 0.8 V, VOE = 2.0 V
30
100
µA
VO = 60 V, VI = 2.0 V, VOE = 0.8 V
<1.0
100
µA
Output Sustaining Voltage
VO(SUS)
IO = 100 mA, VI = VOE = 0.8 V, VCC = Open
40
V
Output Saturation Voltage
VO(SAT)
IO = 100 mA
65
200
mV
IO = 300 mA
180
300
mV
Over-Current Limit
IOM
5 ms PulseTest, VO = 5.0 V
500
mA
Input Voltage
VIH
INn or ENABLE
2.0
V
VIL
INn or ENABLE
0.8V
Input Current
IIH
INn or ENABLE, VIH = 2.0 V
10
µA
IIL
INn or ENABLE, VIL = 0.8 V
-10
µA
Fault Output Leakage Current
IFLT
VFLT = 60 V
4.0
15
µA
VFLT = 5 V
<1.0
2.0
µA
Fault Output Current
IFLT
VFLT = 5 V, Driver Output Open,
VI = 0.8 V, VOE = 2.0 V
40
60
80
µA
Fault Output Saturation Voltage
VFLT(SAT)
IFLT = 30 µA
0.1
0.4
V
Clamp Diode Forward Voltage
VF
IF = 500 mA
1.2
1.7
V
IF = 750 mA
1.5
2.1
V
Clamp Diode Leakage Current
IR
VR = 60 V
50
µA
Turn-On Delay
tPHL
IO = 300 mA, 50% VI to 50% VO
0.6
10
µs
From Sleep, IO = 300 mA, 50% VI to 50% VO
3.0
µs
IO = 300 mA, 50% VOE to 50% VO
1.3
10
µs
Turn-Off Delay
tPLH
IO = 300 mA, 50% VI to 50% VO
2.0
10
µs
IO = 300 mA, 50% VOE to 50% VO
1.4
10
µs
Total Supply Current
ICC
All Outputs Off
0.075
0.1
mA
Any One Output On
12
20
mA
Two Outputs On
1830
mA
Three Outputs On
24
40
mA
All Outputs On
30
50
mA
Thermal Limit
TJ
165
°C
ELECTRICAL CHARACTERISTICS over operating temperature range, VCC = 4.75 V to 5.25 V
Typical Data is at TA = +25°C and VCC = 5 V and is for design information only.
Negative current is defined as coming out of (sourcing) the specified terminal.
As used here, -100 is defined as greater than +10 (absolute magnitude convention) and the minimum is implicitly zero.
* Measurement includes output fault-sensing pull-down current.


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