DRV8840
SLVSAB7D –MAY 2010–REVISED DECEMBER 2015
www.ti.com
6.5 Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
POWER SUPPLIES
I
VM
VM operating supply current V
M
= 24 V, f
PWM
< 50 kHz 5 8 mA
I
VMQ
VM sleep mode supply current V
M
= 24 V 10 20 μA
V
UVLO
VM undervoltage lockout voltage V
M
rising 7.8 8.2 V
V3P3OUT REGULATOR
V
3P3
V3P3OUT voltage IOUT = 0 to 1 mA 3.2 3.3 3.4 V
LOGIC-LEVEL INPUTS
V
IL
Input low voltage 0.6 0.7 V
V
IH
Input high voltage 2.2 5.25 V
V
HYS
Input hysteresis 0.3 0.45 0.6 V
I
IL
Input low current VIN = 0 –20 20 μA
I
IH
Input high current VIN = 3.3 V 33 100 μA
R
PD
Internal pulldown resistance 100 kΩ
nFAULT OUTPUT (OPEN-DRAIN OUTPUT)
V
OL
Output low voltage I
O
= 5 mA 0.5 V
I
OH
Output high leakage current V
O
= 3.3 V 1 μA
DECAY INPUT
V
IL
Input low threshold voltage For slow decay (brake) mode 0 0.8 V
V
IH
Input high threshold voltage For fast decay (coast) mode 2 V
I
IN
Input current ±40 μA
R
PU
Internal pullup resistance 130 kΩ
R
PD
Internal pulldown resistance 80 kΩ
H-BRIDGE FETS
V
M
= 24 V, I
O
= 1 A, T
J
= 25°C 0.1
R
DS(ON)
HS FET on resistance Ω
V
M
= 24 V, I
O
= 1 A, T
J
= 85°C 0.13 0.16
V
M
= 24 V, I
O
= 1 A, T
J
= 25°C 0.1
R
DS(ON)
LS FET on resistance Ω
V
M
= 24 V, I
O
= 1 A, T
J
= 85°C 0.13 0.16
I
OFF
Off-state leakage current –40 40 μA
MOTOR DRIVER
Internal current control PWM
f
PWM
50 kHz
frequency
t
BLANK
Current sense blanking time 3.75 μs
t
R
Rise time 30 200 ns
t
F
Fall time 30 200 ns
PROTECTION CIRCUITS
I
OCP
Overcurrent protection trip level 6 A
t
TSD
Thermal shutdown temperature Die temperature 150 160 180 °C
CURRENT CONTROL
I
REF
VREF input current VREF = 3.3 V –3 3 μA
V
TRIP
ISENSE trip voltage VREF = 3.3 V, 100% current setting 635 660 685 mV
VREF = 3.3 V, 5% current setting –25% 25%
VREF = 3.3 V, 10% - 34% current setting –15% 15%
Current trip accuracy
ΔI
TRIP
(relative to programmed value)
VREF = 3.3 V, 38% - 67% current setting –10% 10%
VREF = 3.3 V, 71% - 100% current setting –5% 5%
A
ISENSE
Current sense amplifier gain Reference only 5 V/V
6 Submit Documentation Feedback Copyright © 2010–2015, Texas Instruments Incorporated
Product Folder Links: DRV8840
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