A3962 Ver la hoja de datos (PDF) - Allegro MicroSystems
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A3962 Datasheet PDF : 8 Pages
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3962
DUAL FULL-BRIDGE
PWM MOTOR DRIVER
ELECTRICAL CHARACTERISTICS at TA = +25°C, VBB = 30 V, VCC = 4.75 V to 5.25 V, VSENSE = 0
V, 30 kΩ & 1000 pF RC to Ground (unless noted otherwise) (cont.)
Characteristic
Symbol Test Conditions
Min.
Limits
Typ. Max.
Units
Control Logic (Continued)
Reference Output Voltage
Reference Output Current
Ref. Input Offset Current
Comparator Input Offset Volt.
Comparator Input Volt. Range
PWM RC Fixed Off-time
PWM Propagation Delay Time
PWM Minimum On Time
Propagation Delay Times
VREF OUT
IREF OUT
IOS
VIO
VREF
tOFF RC
tPWM
tON (min)
tpd
Thermal Shutdown Temp.
TJ
Thermal Shutdown Hysteresis
∆TJ
UVLO Disable Threshold
VCC = 5.0 V, IREF OUT = 90 to 900 µA
3 kΩ ≤ RD = R1 + R2 ≤ 15 kΩ
VREF IN = 1 V
VREF = 0 V
Operating
2.45
150
-2.5
-6.0
-0.3
CT = 1000 pF, RT = 30 kΩ
27
Comparator Trip to Source OFF
—
CT = 1000 pF ± 5%, RT ≥ 15 kΩ, VCC = 5 V —
IOUT = ±800 mA, 50% to 90%:
ENABLE ON to Source ON
—
ENABLE OFF to Source OFF
—
ENABLE ON to Sink ON
—
ENABLE OFF to Sink OFF
—
PHASE Change to Sink ON
—
PHASE Change to Source ON
—
PHASE Change to Sink OFF
—
PHASE Change to Source OFF
—
—
—
2.5
UVLO Hysteresis
0.7
Logic Supply Current
ICC(ON)
VENABLE1 = VENABLE2 = 0.8 V
—
ICC(OFF)
VENABLE1 = VENABLE2 = 2.4 V
—
Logic Supply Current
∆ICC(ON)
VENABLE 1 = VENABLE 2 = 0.8 V
—
Temperature Coefficient
NOTES: 1. Typical Data is for design information only.
2. Negative current is defined as coming out of (sourcing) the specified device terminal.
2.50
—
0
0
—
30
1.2
2.5
3.2
1.2
3.2
0.7
3.2
3.2
0.7
1.2
165
15
2.7
0.9
60
11
0.18
2.55
V
900
µA
1.0
µA
6.0
mV
1.0
V
33
µs
2.0
µs
3.6
µs
—
µs
—
µs
—
µs
—
µs
—
µs
—
µs
—
µs
—
µs
—
°C
—
°C
2.9
V
1.1
V
85
mA
17
mA
—
mA/°C
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
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