LMD18245_06 Datasheet, PDF (3/21 Pages) National Semiconductor (TI) – 3A, 55V DMOS Full-Bridge Motor Driver

Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
DC Voltage at:
OUT 1, V_CC, and OUT 2
COMP OUT, RC, M4, M3, M2, M1, BRAKE,
DIRECTION, CS OUT, and DAC REF
DC Voltage PGND to SGND
Continuous Load Current
Peak Load Current (Note 2)
Junction Temperature (T_J(max))
Power Dissipation (Note 3) :
+60V
+12V
±400mV
3A
6A
+150˚C
TO-220 (T_A = 25˚C, Infinite Heatsink)
TO-220 (T_A = 25˚C, Free Air)
ESD Susceptibility (Note 4)
25W
3.5W
1500V
Storage Temperature Range (T_S)
−40˚C to +150˚C
Lead Temperature (Soldering, 10 seconds)
300˚C
Operating Conditions (Note 1)
Temperature Range (T_J) (Note 3)
Supply Voltage Range (V_CC)
CS OUT Voltage Range
DAC REF Voltage Range
MONOSTABLE Pulse Range
−40˚C to +125˚C
+12V to +55V
0V to +5V
0V to +5V
10 µs to 100 ms
Electrical Characteristics (Note 2)
The following specifications apply for V_CC = +42V, unless otherwise stated. Boldface limits apply over the operating tem-
perature range, −40˚C ≤ T_J ≤ +125˚C. All other limits apply for T_A = T_J = 25˚C.
Symbol
Parameter
Conditions
Typical
Limit
Units
(Note 5)
(Note 5)
(Limits)
I_CC
Quiescent Supply Current
DAC REF = 0V, V_CC = +20V
8
mA
15
mA (max)
POWER OUTPUT STAGE
R_DS(ON)
Switch ON Resistance
I_LOAD = 3A
0.3
0.4
Ω (max)
0.6
Ω (max)
I_LOAD = 6A
0.3
0.4
Ω (max)
0.6
Ω (max)
V_DIODE
Body Diode Forward Voltage
I_DIODE = 3A
1.0
V
1.5
V(max)
T_rr
Q_rr
t_D(ON)
Diode Reverse Recovery Time
Diode Reverse Recovery Charge
Output Turn ON Delay Time
Sourcing Outputs
Sinking Outputs
t_D(OFF)
Output Turn OFF Delay Time
Sourcing Outputs
Sinking Outputs
t_ON
Output Turn ON Switching Time
Sourcing Outputs
Sinking Outputs
t_OFF
Output Turn OFF Switching Time
Sourcing Outputs
Sinking Outputs
t_pw
Minimum Input Pulse Width
t_DB
Minimum Dead Band
CURRENT SENSE AMPLIFIER
I_DIODE = 1A
I_DIODE = 1A
I_LOAD = 3A
I_LOAD = 3A
I_LOAD = 3A
I_LOAD = 3A
I_LOAD = 3A
I_LOAD = 3A
I_LOAD = 3A
I_LOAD = 3A
Pins 10 and 11
(Note 6)
80
ns
40
nC
5
µs
900
ns
600
ns
400
ns
40
µs
1
µs
200
ns
80
ns
2
µs
40
ns
Current Sense Output
I_LOAD = 1A (Note 7)
200
µA (min)
250
175
µA (min)
300
µA (max)
325
µA (max)
Current Sense Linearity Error
0.5A ≤ I_LOAD ≤ 3A (Note 7)
±6
%
±9
%(max)
3
www.national.com