DRV8844 Datasheet, PDF (5/17 Pages) Texas Instruments – QUAD 1/2-H-BRIDGE DRIVER IC

DRV8844
www.ti.com
SLVSBA2 – JULY 2012
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range, all voltages relative to VNEG terminal (unless otherwise noted)
V_M
I_V3P3
Motor power supply voltage range⁽¹⁾
V3P3OUT load current
MIN
NOM
8
0
(1) All V_M pins must be connected to the same supply voltage.
MAX
60
10
UNIT
V
mA
ELECTRICAL CHARACTERISTICS
T_A = 25°C, over operating free-air temperature range, all voltages relative to VNEG terminal (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
POWER SUPPLIES
I_VM
VM operating supply current
I_VMQ
VM sleep mode supply current
V_UVLO
VM undervoltage lockout voltage
V3P3OUT REGULATOR
V_M = 24 V, f_PWM < 50 kHz
V_M = 24 V
V_M rising
1
5 mA
500
800 μA
6.3
8V
V_3P3
V3P3OUT voltage
LOGIC-LEVEL INPUTS
IOUT = 0 to 1 mA
3.18
3.3
3.52 V
V_IL
Input low voltage
V_IH
Input high voltage
V_HYS
Input hysteresis
I_IL
Input low current
I_IH
Input high current
R_PD
Internal pulldown resistance
nFAULT OUTPUT (OPEN-DRAIN OUTPUT)
VIN = LGND
VIN = LGND + 3.3 V
LGND + 0.6 LGND + 0.7 V
LGND + 2.2
5.25 V
50
600 mV
–5
5 μA
100 μA
100
kΩ
V_OL
Output low voltage
I_OH
Output high leakage current
H-BRIDGE FETS
I_O = 5 mA
V_O = LGND + 3.3 V
LGND + 0.5 V
1 μA
R_DS(ON)
HS FET on resistance
LS FET on resistance
I_OFF
Off-state leakage current
PROTECTION CIRCUITS
V_M = 24 V, I_O = 1 A, T_J = 25°C
V_M = 24 V, I_O = 1 A, T_J = 85°C
V_M = 24 V, I_O = 1 A, T_J = 25°C
V_M = 24 V, I_O = 1 A, T_J = 85°C
0.24
0.29
0.39
Ω
0.24
0.29
0.39
–2
2 μA
I_OCP
t_DEAD
t_OCP
T_TSD
Overcurrent protection trip level
Output dead time
Overcurrent protection deglitch time
Thermal shutdown temperature
Die temperature
3
A
90
ns
5
µs
150
160
180 °C
Copyright © 2012, Texas Instruments Incorporated
Product Folder Link(s): DRV8844
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