DRV8308_15 Datasheet, PDF (8/60 Pages) Texas Instruments – DRV8308 Brushless DC Motor Controller

DRV8308
SLVSCF7A – FEBRUARY 2014 – REVISED OCTOBER 2014
7.5 Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VM SUPPLY
I_VM
VM active current
ENABLE = active,
VREG and VSW open
I_STBY
V_RESET
VM standby current
VM logic reset voltage
ENABLE = inactive
VM falling
VM rising
VREG SUPPLY
V_VREG
Output voltage
I_VREG
Output current
VSW SUPPLY
I_OUT = 1 to 30 mA
R_DS(ON) VSW switch on-resistance
I_VSW
Output current
INTERNAL CLOCK OSCILLATOR
I_OUT = 1 to 30 mA
f_CLK50
Internal CLK50 clock frequency
LOGIC-LEVEL INPUTS AND OUTPUTS
V_IL
Low-level input voltage
V_IH
High-level input voltage
I_IL
Low-level input current
I_IH
High-level input current
V_IN = 3.3 V, RESET,
DIR, BRAKE, CLKIN,
SCS, SCLK, SDATAI,
SMODE
V_HYS
R_PD
Input hysteresis voltage
Input pulldown resistance
V_IN = 3.3 V, ENABLE
RESET, DIR, BRAKE,
CLKIN, SCS, SCLK,
SDATAI, SMODE
ENABLE
OPEN DRAIN OUTPUTS
V_OL
Low-level output voltage
I_OH
Output leakage current
FG AMPLIFIER AND COMPARATOR
I_OUT = 2.0 mA
V_OUT = 3.3 V
V_IO
I_IB
V_ICM
A_V
GBW
FG amplifier input offset voltage
FG amplifier input bias current
FG amplifier input common mode voltage range
FG amplifier open loop voltage gain
FG amplifier gain bandwidth product
V_REF+
FG comparator positive reference voltage
V_IT+
FG comparator positive threshold
V_IT-
FG comparator negative threshold
HALL SENSOR INPUTS
V_HYS
∆V_HYS
V_ID
V_CM
Hall amplifier hysteresis voltage
Hall amplifier hysteresis difference
Hall amplifier input differential
Hall amplifier input common mode voltage
range
Between U, V, W
I_IN
t_HDEG
Input leakage current
Hall deglitch time
H_x+ = H_x-
8
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MIN
TYP
12
5
4.75
5
9
50
1.5
–50
20
6
0.1
0.3
50
100
350
–7
–1
1.5
45
500
–20%
–20%
–20%
V_VREG / 2
V_VREG / 1.8
V_VREG / 2
15
20
–5
50
1.5
–10
20
MAX UNIT
18 mA
120 µA
4.6
V
5.25 V
30 mA
20 Ω
30 mA
MHz
0.8 V
5.5 V
50 µA
100
µA
9
0.5 V
150
kΩ
550
0.5 V
1 µA
7 mV
1 μA
3.5 V
dB
kHz
20% V
20% V
20% V
25 mV
5 mV
mV
3.5 V
10 μA
μs
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