3421 Datasheet, PDF (3/12 Pages) Allegro MicroSystems – HALL-EFFECT, DIRECTION-DETECTION SENSORS

3421 AND 3422
HALL-EFFECT,
DIRECTION-DETECTION
SENSORS
ELECTRICAL CHARACTERISTICS over operating temperature range.
Characteristic
Supply Voltage Range
Output Leakage Current
Output Saturation Voltage
Power-On State
Under-Voltage Lockout
Under-Voltage Hysteresis
Power-On Time
Output Rise Time
Output Fall Time
Direction Change Delay
Supply Current
Symbol Test Conditions
V_CC
I_OFF
V_OUT(SAT)
POS
V_CC(UV)
V_CC(hys)
t_po
t_r
t_f
t_d
Operating, T_J < 165°C¹
V_OUT = V_CC = 18 V
I_OUT = 20 mA
V_CC = 0 → 5 V,
B_RP1 < B < B_OP1, B_RP2 < B < B_OP2
I_OUT = 20 mA, V_CC = 0 → 5 V
Lockout (V_CC(UV)) - Shutdown
V_CC > 4.5 V
C_L = 20 pF, R_L = 820 Ω
C_L = 20 pF, R_L = 820 Ω
C_L = 20 pF, R_L = 820 Ω
I_CC
V_CC = 8 V, All outputs OFF
Min.
4.5
—
—
OFF
—
—
—
—
—
0.5
5.0
Limits
Typ. Max.
—
18
<1.0
10
0.21 0.50
OFF OFF
Units
V
µA
V
—
3.5
—
V
0.5
—
V
—
50
µs
200
—
ns
200
—
ns
1.0
5.0
µs
9.0
18
mA
NOTES:1. Maximum supply voltage must be adjusted for power dissipation and ambient temperature.
2. Typical Data is at V_CC = 12 V and T_A = +25°C and is for design information only.
0.6
0.5
0.4
0.3
RθJA = 164°C/W
0.2
0.1
0
25
50
75
100
125
150
175
TEMPERATURE IN °C
Dwg. GH-069
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