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DRV8809 Datasheet(PDF) 11 Page - Texas Instruments

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Part # DRV8809
Description  COMBINATION MOTOR DRIVERS WITH DC-DC CONVERTERS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

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Serial Interface
DRV8809
DRV8810
www.ti.com ............................................................................................................................................................... SLVS854A – JULY 2008 – REVISED JULY 2008
ELECTRICAL CHARACTERISTICS (continued)
TJ = 0°C to 120°C, VM = 7 V to 40 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Stepper and DC Motor Drivers
tr
Rise time
VM = 27 V
100
300
ns
tf
Fall time
20% to 80%
100
300
ns
Enable or strobe detection to
tPDOFF
50
150
400
ns
sink or source gate off delay
Crossover delay time, to prevent
tCOD
100
600
1000
ns
shoot through
Enable or strobe detection to
tPDON
750
ns
sink or source gate on delay
DC Motor Drivers
TBLNK = (0,0) for Min, (1,1) for Max,
tblank
Blanking time
1.6
5.65
µs
fCHOP = 100 kHz
twPminp
Minimum pulse duration (phase)
1
µs
twPmine
Minimum pulse duration (enable)
1
µs
Serial Interface
f(CLK)
Clock frequency
1
25
MHz
twh(CLK)
Minimum high-level pulse width
10
ns
twl(CLK)
Minimum low-level pulse width
10
ns
tsu
Setup time, data to CLK
10
ns
th
Hold time, CLK
↓ to data
10
ns
tcs
CLK
↓ to STROBE↑
10
ns
tsc
STROBE
↓ to CLK↑
10
ns
tw(STRB)
Minimum strobe pulse duration
20
ns
tss_min
Strobe mask time from nSLEEP
1.5
4
µs
Serial Interface: ID Monitor Function at LOGIC_OUT, Extended Setup Mode
0 data output delay bit 3 to bit 0
From strobe rise to LOGIC_OUT,
tODL
4000
ns
(ext-setup) = (1100)
1 k
Ω to external 3.3 V
1 data output delay bit 3 to bit 0
From strobe rise to LOGIC_OUT,
tODH
4000
ns
(ext-setup) = (1111)
1 k
Ω to external 3.3 V
The device has two serial interface circuit blocks for stepper motor driving control. These two serial interfaces
provide controls to each motor driver independently.
CLKAB
Serial clock for H-bridge A, B
DATAAB
Serial data for H-bridge A, B
STROBEAB
Strobe input for H-bridge A, B
CLKCD
Serial clock for H-bridge C, D
DATACD
Serial data for H-bridge C, D
STROBECD
Strobe signal for H-bridge C, D
Copyright © 2008, Texas Instruments Incorporated
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