DRV8872_15 Datasheet, PDF (5/25 Pages) Texas Instruments – DRV8872 3.6-A Brushed DC Motor Driver With Fault Reporting (PWM Control)

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6.5 Electrical Characteristics
T_A = 25°C, over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
POWER SUPPLY (VM)
VM
VM operating voltage
I_VM
VM operating supply current
I_VMSLEEP
t_ON ⁽¹⁾
VM sleep current
Turn-on time
LOGIC-LEVEL INPUTS (IN1, IN2)
VM = 12 V
VM = 12 V
VM > V_UVLO with IN1 or IN2 high
V_IL
Input logic low voltage
V_IH
Input logic high voltage
V_HYS
Input logic hysteresis
I_IL
Input logic low current
I_IH
Input logic high current
R_PD
Pulldown resistance
t_PD
Propagation delay
t_sleep
Time to sleep
MOTOR DRIVER OUTPUTS (OUT1, OUT2)
V_IN = 0 V
V_IN = 3.3 V
To GND
INx to OUTx change (see Figure 6)
Inputs low to sleep
R_DS(ON)
High-side FET on resistance
R_DS(ON)
Low-side FET on resistance
t_DEAD
Output dead time
V_d
Body diode forward voltage
CURRENT REGULATION
VM = 24 V, I = 1 A, T_A = 25°C
VM = 24 V, I = 1 A, T_A = 25°C
I_OUT = 1 A
V_TRIP
ISEN voltage for current
chopping
t_OFF
PWM off-time
t_BLANK
PWM blanking time
PROTECTION CIRCUITS
V_UVLO
VM undervoltage lockout
VM falls until UVLO triggers
VM rises until operation recovers
V_UV,HYS
I_OCP
VM undervoltage hysteresis
Overcurrent protection trip
level
Rising to falling threshold
t_OCP
t_RETRY
T_SD
Overcurrent deglitch time
Overcurrent retry time
Thermal shutdown
temperature
T_HYS
Thermal shutdown hysteresis
nFAULT OPEN DRAIN OUTPUT
V_OL
Output low voltage
I_O = 5 mA
I_OH
Output high leakage current V_O = 3.3 V
(1) t_ON applies when the device initially powers up, and when it exits sleep mode.
DRV8872
SLVSCZ0A – AUGUST 2015 – REVISED AUGUST 2015
MIN
TYP
MAX UNIT
6.5
45
V
3
10
mA
10
µA
40
50
µs
0.5
V
1.5
V
0.5
V
-1
1
μA
33
100
μA
100
kΩ
0.7
1
μs
1
1.5
ms
307
360
mΩ
258
320
mΩ
220
ns
0.8
1
V
0.32
0.35
0.38
V
25
μs
2
µs
6.1
6.3
100
180
3.7
4.5
1.5
3
150
175
40
6.4
V
6.5
mV
6.4
A
μs
ms
°C
°C
0.5
V
1
µA
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