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DRV3204E-Q1 Datasheet(数据表) 23 Page - Texas Instruments

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部件型号  DRV3204E-Q1
说明  Three-Phase Brushless Motor Driver
下载  39 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
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DRV3204E-Q1 Datasheet(HTML) 23 Page - Texas Instruments

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 23 page
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VCC
VO_0
VLine
=´Y/´X
Imotor
0A
´X
´Y
ADTH
Imotor
0A
OVAD
ALFB/2
ALV
DRV3204E-Q1
www.ti.com
SLVSCB5A – OCTOBER 2013 – REVISED JANUARY 2013
Table 7. Motor Current-Sense Electrical Characteristics
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VB = 12 V, TA = –40°C to 150℃
℃ (unless otherwise specified)
MOTOR CURRENT SENSE
VOfs
Input offset voltage
–5
5
mV
0.5
1
VO_0
Output voltage, ALV
Imotor = 0 A, SPI register CSCFG. CSOFFSET
1.5
V
2
2.5
Rshunt = 1 m
Ω,
VLine
Linearity, ALV
R11 = R12 = 1 k
Ω,
29.4
30
30.6
mV/A
R21 = R22 = 30 k
Ω
VGain
Gain
10
30
V/V
Rshunt = 1 m
Ω, VGain = 30, CL = 100 pF,
Tset_TR1(1)
Settling time (rise), ALV ±1%
Imotor = 0 A
→ 30 A,
1
2.5
µs
(ALV: 1 V
→ 1.9 V, AREF = 1 V)
Rshunt = 1 m
Ω, VGain = 30, CL = 100 pF,
Tset_TR2(1)
Settling time(rise), ALV ±1%
Imotor = 0 A
→ 100 A,
1
2.5
µs
(ALV: 1 V
→ 4 V, AREF = 1 V)
Rshunt = 1 m
Ω, VGain = 30, CL = 100 pF,
Tset_TF1(1)
Settling time(fall), ALV ±1%
Imotor = 30 A
→0,
1
2.5
µs
(ALV: 1.9 V
→ 1 V, AREF = 1 V)
Rshunt = 1 m
Ω, VGain = 30, CL = 100 pF,
Tset_TF2(1)
Settling time(fall), ALV ±1%
Imotor = 100 A
→0,
1
2.5
µs
(ALV: 0.4 V
→ 1 V, AREF = 1 V)
Rshunt = 1 m
Ω, VGain = 30, AREF = 1 V,
ADTH = 2.5 V, SPI register FLTCFG. MTOCTH,
OVADth
Overcurrent threshold
119.7
133
146.3
A
OVADth = (2 × ADTH - AREF) / (Rshunt × VGain)
Propagation delay
TDEL_OVAD
1.5
µs
(1)
(rise or fall)
tfiltMTOC
filtering time
OSC1 = 9 MHz-11 MHz
0.8
1
1.2
µs
(1)
Specified by design.
Figure 16. Motor-Current Sense and Overcurrent
Copyright © 2013, Texas Instruments Incorporated
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