8958 Ver la hoja de datos (PDF) - Allegro MicroSystems
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8958 Datasheet PDF : 8 Pages
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8958
VOICE COIL
MOTOR DRIVER
ELECTRICAL CHARACTERISTICS (continued)
Characteristic
Current Sense Amplifier
Input Offset Voltage
Input Offset Drift
Symbol
Test Conditions
VIO
∆VIO
VCM = 6 V
VCM = 0 V to 12 V
Voltage Gain
Output Saturation Voltage
Park Function
AVS
VSAT
VID = -1 V to +1 V, VCM = 6 V
VOUT, IOUT(SINK) = 1.5 mA
VCC - VOUT, IOUT(SOURCE) = -1.5 mA
PARK DRIVE Leakage Current
PARK DRIVE Saturation Voltage
PARK Input Threshold
PARK Input Current
PARK VOLTAGE Input Current
Under-Voltage Protection
ICEX
VCE(SAT)
VPARK
IPARK
IPARK V
VCEX = 20 V
IC = 200 mA
VPARK = 1.7 V
UV Threshold
UV Threshold Hysteresis
UV Input Current
PWR OK Saturation Voltage
PWR OK Leakage Current
Auxiliary Functions
VUV
∆VUV
IUV
VCE(SAT)
ICEX
Low-to-High Trans., Other Input = 6 V
VUV = 1 V
IC = 5 mA
VCEX = 20 V
LIMIT Input Voltage
VLIMIT(L)
VLIMIT(H)
VLIMIT
OUTA forced Low
OUTA forced High
Limit inactive
Open circuit
LIMIT Input Resistance
INHIBIT Input Threshold
INHIBIT Input Current
RLIMIT
V2
I2
VLIMIT = 1.2 V to 1.8 V
V2 = 1.7 V
Negative current is defined as coming out of (sourcing) the specified device terminal.
Typical Data is for design information only.
Min.
Limits
Typ. Max.
Units
—
— 2.0
—
— 3000
—
— 8.0
1.95 2.00 2.05
—
300 500
—
400 700
mV
µV/V
µV/°C
—
mV
mV
—
— 100
µA
—
300 500
mV
0.7
1.1 1.7
V
—
— 100
µA
— -150 -500
nA
1.48 1.50 1.52
V
15
25 45
mV
—
-0.5 -1.5
µA
—
— 450
mV
—
— 5.0
µA
0.7
0.8
—
V
—
2.2 2.3
V
1.2
— 1.8
V
1.45 1.50 1.55
V
—
10
—
kΩ
0.7
1.1 1.7
V
—
— 200
µA
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
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