A2557 Ver la hoja de datos (PDF) - Allegro MicroSystems
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A2557 Datasheet PDF : 12 Pages
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2557
PROTECTED QUAD DRIVER
WITH FAULT DETECTION
& SLEEP MODE
ELECTRICAL CHARACTERISTICS over operating temperature range, VCC = 4.75 V to 5.25 V
Characteristic
Output Leakage Current*
Symbol
ICEX
Output Sustaining Voltage
Output Saturation Voltage
VO(SUS)
VO(SAT)
Over-Current Limit
IOM
Input Voltage
VIH
VIL
Input Current
IIH
IIL
Fault Output Leakage Current
IFLT
Fault Output Current
IFLT
Fault Output Saturation Voltage
Clamp Diode Forward Voltage
VFLT(SAT)
VF
Clamp Diode Leakage Current
IR
Turn-On Delay
tPHL
Turn-Off Delay
tPLH
Total Supply Current
ICC
Thermal Limit
TJ
Test Conditions
VO = 60 V, VI = 0.8 V, VOE = 2.0 V
VO = 60 V, VI = 2.0 V, VOE = 0.8 V
IO = 100 mA, VI = VOE = 0.8 V, VCC = Open
IO = 100 mA
IO = 300 mA
5 ms PulseTest, VO = 5.0 V
INn or ENABLE
INn or ENABLE
INn or ENABLE, VIH = 2.0 V
INn or ENABLE, VIL = 0.8 V
VFLT = 60 V
VFLT = 5 V
VFLT = 5 V, Driver Output Open,
VI = 0.8 V, VOE = 2.0 V
IFLT = 30 µA
IF = 500 mA
IF = 750 mA
VR = 60 V
IO = 300 mA, 50% VI to 50% VO
From Sleep, IO = 300 mA, 50% VI to 50% VO
IO = 300 mA, 50% VOE to 50% VO
IO = 300 mA, 50% VI to 50% VO
IO = 300 mA, 50% VOE to 50% VO
All Outputs Off
Any One Output On
Two Outputs On
Three Outputs On
All Outputs On
Min.
—
—
40
—
—
—
2.0
—
—
—
—
—
Limits
Typ. Max.
30
100
<1.0 100
—
—
65
200
180 300
500
—
—
—
—
0.8
—
10
—
-10
4.0
15
<1.0 2.0
40
60
80
—
0.1
0.4
—
1.2
1.7
—
1.5
2.1
—
—
50
— 0.6
10
— 3.0
—
— 1.3
10
— 2.0
10
— 1.4
10
— 0.075 0.1
—
12
20
—
18
30
—
24
40
—
30
50
— 165
—
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.
Units
µA
µA
V
mV
mV
mA
V
V
µA
µA
µA
µA
µA
V
V
V
µA
µs
µs
µs
µs
µs
mA
mA
mA
mA
mA
°C
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