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A1391 Datasheet(PDF) 4 Page - Allegro MicroSystems

Part No. A1391
Description  Micro Power 3 V Linear Hall Effect Sensors withTri-State Output and User-Selectable Sleep Mode
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Maker  ALLEGRO [Allegro MicroSystems]
Homepage  http://www.allegromicro.com
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A1391 Datasheet(HTML) 4 Page - Allegro MicroSystems

 
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Micro Power 3 V Linear Hall Effect Sensor ICs
with Tri-State Output and User Selectable Sleep Mode
A1391, A1392,
A1393, and A1395
4
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
OUTPUT CHARACTERISTICS valid through full operating ambient temperature range, unless otherwise noted
Characteristic
Symbol
Test Conditions
Min.
Typ.1
Max.
Units
Linear Output Voltage
Range
VOUTH
VCC = VCCN, VREF ≤ VCC
–VREF – 0.1
V
VOUTL
VCC = VCCN, VREF ≤ VCC
0.1
V
Maximum Voltage Applied
to Output
VOUTMAX VSLEEP < VINL
––
VCC + 0.1
V
Sensitivity2
Sens
A1391 TA = 25°C, VCC = VREF = VCCN
1.25
mV/G
A1392 TA = 25°C, VCC = VREF = VCCN
2.50
mV/G
A1393 TA = 25°C, VCC = VREF = VCCN
5
mV/G
A1395 TA = 25°C, VCC = VREF = VCCN
10
mV/G
Quiescent Output
VOUTQ
TA = 25°C, B = 0 G
0.500 × VREF
–V
Output Resistance3
ROUT
fout = 1 kHz, VSLEEP > VINH, active mode
20
Ω
fout = 1 kHz, VSLEEP < VINL, sleep mode
4M
Ω
Output Load Resistance
RL
Output to ground
15
Output Load Capacitance
CL
Output to ground
10
nF
Output Bandwidth
BW
–3 dB point, VOUT = 1 Vpp sinusoidal,
VCC = VCCN
10
kHz
Noise4,5
Vn
1391
Cbypass = 0.1 μF,
BWexternalLPF = 2 kHz
6
12
mVpp
Cbypass = 0.1 μF, no load
20
mVpp
1392
Cbypass = 0.1 μF, no load
40
mVpp
1393
Cbypass = 0.1 μF,
BWexternalLPF = 2 kHz
–12
24
mVpp
Cbypass = 0.1 μF, no load
40
mVpp
1395
Cbypass = 0.1 μF, no load
80
mVpp
1Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions, such as TA = 25°C. Performance
may vary for individual units, within the specified maximum and minimum limits.
2For VREF values other than VREF = VCCN, the sensitivity can be derived from the following equation: K × VREF, where K =0.416 for the A1391, K= 0.823
for the A1392, K = 1.664 for the A1393, and K = 3.328 for the A1395.
3f OUT is the output signal frequency
4Noise specification includes digital and analog noise.
5Values for BWexternalLPF do not include any noise resulting from noise on the externally-supplied VREF voltage.


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