A3969
Dual Full-Bridge PWM Motor Driver
ELECTRICAL CHARACTERISTICS at TA = +25°C, VBB = 30 V, VCC = 3.0 V to 3.6 V, VREF = 1.7 V,
VS = 0 V, 56 kΩ and 680 pF RC to Ground (unless noted otherwise) (cont.)
Characteristic
Control Logic (continued)
Symbol Test Conditions
Min.
Limits
Typ. Max.
Units
PWM RC Frequency
PWM Propagation Delay Time
Cross-Over Dead Time
Propagation Delay Times
Thermal Shutdown Temp.
Thermal Shutdown Hysteresis
UVLO Enable Threshold
UVLO Hysteresis
Logic Supply Current
fosc
tPWM
CT = 680 pF, RT = 56 kΩ
Comparator Trip to Source OFF
Cycle Reset to Source ON
22.9 25.4
27.9
kHz
—
1.0
1.4
μs
—
0.8
1.2
μs
tcodt
100 Ω Load to 15 V
0.2
1.3
3.0
μs
tpd
IOUT = ±650 mA, 50% to 50%; VBB = 15 V:
ENABLE ON to Source ON
—
125
—
ns
ENABLE OFF to Source OFF
—
500
—
ns
ENABLE ON to Sink ON
—
200
—
ns
ENABLE OFF to Sink OFF
—
200
—
ns
PHASE Change to Sink ON
—
1500
—
ns
PHASE Change to Sink OFF
—
200
—
ns
PHASE Change to Source ON
—
1500
—
ns
PHASE Change to Source OFF
—
200
—
ns
TJ
ΔTJ
VT(UVLO)+
VT(UVLO)hys
ICC(ON)
ICC(OFF)
Increasing VCC
VENABLE 1 = VENABLE 2 = 0.8 V
VENABLE 1 = VENABLE 2 = 2.4 V
—
165
—
°C
—
15
—
°C
—
2.75
3.0
V
0.07 0.10
—
V
—
—
50
mA
—
—
9.0
mA
NOTES:
1. Typical Data is for design information only.
2. Negative current is defined as coming out of (sourcing) the specified device terminal.
Allegro MicroSystems, Inc.
5
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com