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| DRV8834 Datasheet, PDF (6/30 Pages) Texas Instruments – DUAL BRIDGE STEPPER OR DC MOTOR DRIVER | |||
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DRV8834
SLVSB19A â FEBRUARY 2012 â REVISED MARCH 2012
ELECTRICAL CHARACTERISTICS
TA = 25°C, over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
POWER SUPPLY
IVM
VM operating supply current
IVMQ
VM sleep mode supply current
VUVLO
VM undervoltage lockout voltage
INTERNAL REGULATORS
VM = 5 V, excluding winding current
VM = 10 V, excluding winding current
VM = 5 V
VM = 10 V
VM falling
VINT
VINT voltage
VREFO
VREF voltage
LOGIC-LEVEL INPUTS
VM > 3.3 V, IOUT = 0 A to 1 mA
IOUT = 0 A to 400 µA
VIL
Input low voltage
nSLEEP
All other digital input pins
VIH
Input high voltage
nSLEEP
All other digital input pins
VHYS
Input hysteresis
nSLEEP
All except nSLEEP
nSLEEP
RPD
Input pull-down resistance
All except nSLEEP, M0
IIL
Input low current
IIN
Input current (M0)
IIH
Input high current
VIN = 0
VIN = 3.3 V, nSLEEP
VIN = 3.3 V, all except nSLEEP
tDEG
Input deglitch time
nFAULT OUTPUT (OPEN-DRAIN OUTPUT)
VOL
Output low voltage
IOH
Output high leakage current
H-BRIDGE FETS
IO = 5 mA
VO = 3.3 V
HS FET on resistance
RDS(ON)
LS FET on resistance
IOFF
Off-state leakage current
MOTOR DRIVER
VM = 5 V, I O = 500 mA, TJ = 25°C
VM = 5 V, IO = 500 mA, TJ = 85°C
VM = 2.7 V, I O = 500 mA, TJ = 25°C
VM = 2.7 V, IO = 500 mA, TJ = 85°C
VM = 5 V, I O = 500 mA, TJ = 25°C
VM = 5 V, IO = 500 mA, TJ = 85°C
VM = 2.7 V, I O = 500 mA, TJ = 25°C
VM = 2.7 V, IO = 500 mA, TJ = 85°C
fPWM
Current control PWM frequency
tBLANK
Current sense blanking time
tR
Rise time
tF
Fall time
PROTECTION CIRCUITS
Internal PWM frequency
VREF > 375 mV or DAC codes > 29%
VREF < 375 mV or DAC codes < 29%
VM = 5 V, 16 Ω to GND, 10% to 90% VM
VM = 5 V, 16 Ω to GND, 10% to 90% VM
IOCP
Overcurrent protection trip level
tOCP
Overcurrent protection period
VREF > 375 mV or DAC codes > 29%
VREF < 375 mV or DAC codes < 29%
6
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Product Folder Link(s): DRV8834
www.ti.com
MIN
2.85
1.9
2.5
2
-20
312
â2
2
TYP
MAX UNIT
2.4
4
mA
2.75
0.6
2
μA
9.6
2.39
V
3
3.15
V
2
2.1
V
0.5
V
0.7
V
0.2
V
0.4
500
kΩ
200
1
μA
20
µA
6.6
13
μA
16.5
33
468
ns
0.5
V
1
μA
160
250
190
200
295
240
mâ¦
145
240
180
190
285
235
2
μA
42.5
kHz
2.4
µs
1.6
120
ns
100
ns
A
1.6
µs
1.1
Copyright © 2012, Texas Instruments Incorporated
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