DRV3202-Q1_15 Datasheet, PDF (23/39 Pages) Texas Instruments – 3-Phase Brushless Motor Driver

DRV3202-Q1
www.ti.com
SLVSBJ4A – OCTOBER 2012 – REVISED DECEMBER 2012
MOTOR CURRENT SENSE ELECTRICAL CHARACTERISTICS⁽¹⁾ (continued)
VB = 12 V, T_A = –40°C to 125°C (unless otherwise specified)
PARAMETER
CONDITIONS
MIN TYP
V_Line
Linearity (ALV)
VB = 5.3 ~ 18 V,
R_shunt = 1 mΩ,
R11 = R12 = 1 kΩ, R21 = R22 = 30 kΩ
–2%
30
V_Gain
T_{set_TR1}
Gain
Settling time (Rise) ALV ±1%
T_{set_TR2}
Settling time (Rise) ALV ±1%
T_{set_TF1}
Settling time (Fall) ALV ±1%
T_{set_TF2}
Settling time (Fall) ALV ±1%
OVAD
Overcurrent threshold
TDEL_OVAD⁽³⁾ Propagation delay (Rise or fall)
10
VB = 5.3 ~ 18 V,
R_shunt = 1 mΩ, C1 = 4.7 pF, C_L = 100 pF,
R11 = R12 = 1 kΩ, R21 = R22 = 30 kΩ,
–
1
I_motor = 0 → 30 A, (ALV : 1→1.9 V)
VB = 5.3 ~ 18 V,
R_shunt = 1 mΩ, C1 = 4.7 pF, C_L = 100 pF,
R11 = R12 = 1 kΩ, R21 = R22 = 30 kΩ,
–
1
I_motor = 0 → 100 A, (ALV : 1 → 4 V)
VB = 5.3 ~ 18 V,
R_shunt = 1 mΩ, C1 = 4.7 pF, C_L = 100 pF,
R11 = R12 = 1 kΩ, R21 = R22 = 30 kΩ,
–
1
I_motor = 30 → 0 A, (ALV : 1.9 → 1 V)
VB = 5.3 ~ 18 V,
R_shunt = 1 mΩ, C1 = 4.7 pF, C_L = 100 pF,
R11 = R12 = 1 kΩ, R21 = R22 = 30 kΩ,
–
1
I_motor = 100 → 0 A, (ALV : 4 → 1 V)
150-A detection,
R_shunt = 1 mΩ,
R11 = R12 = 1 kΩ, R21 = R22 = 30 kΩ,
–10%
150
R3 = 8.2 kΩ, R4 = 10 kΩ
–
–
MAX UNITS
2% mV/A
30
2.5
µs
2.5
µs
2.5
µs
2.5
µs
10%
A
1.5
µs
(3) Specified by design
ALV
ALFB / 2
V_CC
V_{O_0}
V_Line
= ûY / ûX
ûY
ûX
ADTH
0A
I_motor
0A
OVAD
I_motor
*ALFB up to VB
Figure 18. Motor Current Sense and Overcurrent
Copyright © 2012, Texas Instruments Incorporated
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