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DRV8301_14 Datasheet, PDF (10/28 Pages) Texas Instruments – Three Phase Pre-Driver with Dual Current Shunt Amplifiers and Buck Regulator | |||
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DRV8301
SLOS719B â AUGUST 2011 â REVISED AUGUST 2013
CURRENT SHUNT AMPLIFIER CHARACTERISTICS
TC = 25°C unless otherwise specified
PARAMETER
TEST CONDITIONS
G1
Gain option 1
Tc = -40°C-125°C
G2
Gain option 2
Tc = -40°C-125°C
G3
Gain Option 3
Tc = -40°C-125°C
G4
Gain Option 4
Tc = -40°C-125°C
Tsettling Settling time to 1%
Tc = 0-60°C, G = 10, Vstep = 2 V
Tsettling Settling time to 1%
Tc = 0-60°C, G = 20, Vstep = 2 V
Tsettling Settling time to 1%
Tc = 0-60°C, G = 40, Vstep = 2 V
Tsettling Settling time to 1%
Tc = 0-60°C, G = 80, Vstep = 2 V
Vswing
Output swing linear range
Slew Rate
G = 10
DC_offset Offset error RTI
G = 10 with input shorted
Drift_offset Offset drift RTI
Ibias
Input bias current
Vin_com Common input mode range
Vin_dif
Differential input range
Vo_bias
Output bias
With zero input current, Vref up to 6 V
CMRR_OV
Overall CMRR with gain resistor
mismatch
CMRR at DC, gain = 10
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MIN
TYP
9.5
10
18
20
38
40
75
80
300
600
1.2
2.4
0.3
10
10
â0.15
â0.3
â0.5%
0.5ÃVref
MAX
10.5
21
42
85
5.7
4
100
0.15
0.3
0.5%
UNIT
V/V
V/V
V/V
V/V
ns
ns
µs
µs
V
V/µs
mV
µV/C
µA
V
V
V
70
85
dB
BUCK CONVERTER CHARACTERISTICS
TC = 25°C unless otherwise specified
PARAMETER
TEST CONDITIONS
VUVLO
ISD(PVDD2)
INON_SW(PVDD2)
Internal undervoltage lockout threshold
Shutdown supply current
Operating: nonswitching supply current
VEN_BUCK
Enable threshold voltage
No voltage hysteresis, rising and falling
EN = 0 V, 25°C, 3.5 V ⤠VIN ⤠60 V
VSENSE = 0.83 V, VIN = 12 V
No voltage hysteresis, rising and falling,
25°C
RDS_ON
ILIM
OTSD_BK
On-resistance
Current limit threshold
Thermal shutdown
VIN = 3.5 V, BOOT-PH = 3 V
VIN = 12 V, TJ = 25°C
Fsw
Switching frequency
RT = 200 kâ¦
VSENSE falling
PWRGD
VSENSE threshold
VSENSE rising
VSENSE rising
VSENSE falling
Hysteresis
VSENSE falling
Output high leakage
VSENSE = VREF, V(PWRGD) = 5.5 V,
25°C
On resistance
I(PWRGD) = 3 mA, VSENSE < 0.79 V
MIN TYP MAX UNIT
2.5
V
1.3
4 µA
116 136 µA
0.9 1.25 1.55 V
300
1.8 2.7
182
450 581
92%
94%
109%
107%
2%
mâ¦
A
°C
720 kHz
10
nA
50
â¦
SPI CHARACTERISTICS (Slave Mode Only)
PARAMETER
TEST CONDITIONS
tSPI_READY
SPI ready after EN_GATE transitions to
HIGH
PVDD > 6 V
tCLK
tCLKH
tCLKL
Minimum SPI clock period
Clock high time
Clock low time
MIN TYP MAX UNIT
5
10 ms
100
ns
40
40
10
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