MLX10402
Motor Driver IC
3901010402
Page 1
Aug/02
Rev. 003
Features and Benefits
Small package (SOIC16)
Current limitation
Low power consumption
Thermal Overload protection
Microcontroller compatible
Applications
Small DC inductive motor driver
Lamp driver
Ordering Information
Part No.
Temperature Suffix
Package
MLX10402
C ( 0C to +70C )
DF (SOIC 16)
1. Functional Diagram
CONTROL
CIRCUIT
VCC
VDD
IN1
IN2
M1
M2
TEMPERATURE
PROTECTION
AUTO
OVERTEMP
10402 Motor Driver IC
2. Description
The IC drives directly small DC inductive or active
loads like electric motors, lamps, etc. There are four
main driving modes. These are set by digital inputs
"In1" and "In2" :
IN1
IN2
M1
M2
Driving Mode
1
0
1
0
Forward
0
1
0
1
Reverse
1
1
0
0
Brake (Motor shorted)
0
0
Z
Z
Off (Motor disabled)
The current of the output-drivers is limited for all
kinds of overload- and short-circuit conditions and in
the whole supply voltage- and temperature range.
The outputs "M1" and "M2" need to be off-chip
protected with against motor inductances by
standard Si-diodes.
If the temperature of the chip exceeds a certain
value (changable with pin "Auto"), the temperature-
overload protection-circuit disables the outputs,
preventing the chip from being overheated. In
addition, this so called "temp ovl"-state is signaled
with a low level at the "overtemp"-pin.
MLX10402
Motor Driver IC
3901010402
Page 2
Aug/02
Rev. 003
Table of Contents
Features and Benefits ................................................................................................... 1
Applications................................................................................................................... 1
Ordering Information..................................................................................................... 1
1. Functional Diagram................................................................................................ 1
2. Description.............................................................................................................. 1
3. Electrical Characteristics....................................................................................... 3
4. Absolute Maximum Ratings .................................................................................. 3
5. Pin-out..................................................................................................................... 4
6. Typical application circuit ..................................................................................... 4
7. Reliability Information............................................................................................ 5
8. ESD Precautions .................................................................................................... 5
9. Disclaimer ............................................................................................................... 6
MLX10402
Motor Driver IC
3901010402
Page 3
Aug/02
Rev. 003
3. Electrical Characteristics
Following characteristics are valid at
0C to 70C
Characteristics
Test Conditions
Limits
Min
Typ
Max
Units
Supply voltage Vcc
5
9
12
V
Supply voltage Vdd
4.5
5.0
5.5
V
Mean motor current
Vcc=9V
330
mA
Vcc=6V
300
mA
Motor current limit
Vcc=9V
550
mA
Vcc=6V
500
mA
Brake current
Vcc=9V
240
mA
Vcc=6V
180
mA
Voltage drop at the 2
Vcc=9V, Icc=300mA
1.2
V
output transistors together
Vcc=6V, Icc=260mA
1.2
V
Supply current Icc
FORW, REVERSE,
BRAKE, TEMP OVL
5.0
mA
OFF mode
10.0
A
Supply current Idd
FORW, REVERSE,
BRAKE, TEMP OVL
1.0
mA
OFF mode
10.0
A
Inputs "In1" & "In2"
Logic level
TTL,
1.4
V
Input "Auto"
(Pull up)
Current sourced
(if tied to GND)
25
uA
Output "overtemp"
TEMP OK output
HiZ
(Open DRAIN)
TEMP OVL output
@1mA sink
0.4
V
Temperature characteristics
Characteristics
Conditions
Limits
Min
Typ
Max
Units
TEMP OVL-Protection
1.1.1.1
"Auto" = 1 or
floating
122
C
turn on Temperature
"Auto" = 0
155
C
TEMP OVL-Protection
"Auto" = 1 or floating
93
C
turn off Temperature
"Auto" = 0
105
C
4. Absolute Maximum Ratings
Vcc
+16V
Maximum Output Current
700mA
Die Temperature
+160C
Storage Temperature
-55C to 125C
MLX10402
Motor Driver IC
3901010402
Page 4
Aug/02
Rev. 003
5. Pin-out
Pin 1: M2
Pin 16: AUTO
Pin 2: VCC
Pin 15: N.C.
Pin 3: N.C.
Pin 14: GND (logic)
Pin 4: GND
Pin 13: OVERTEMP
Pin 5: GND
Pin 12: VDD
Pin 6: N.C.
Pin 11: N.C.
Pin 7: VCC
Pin 10: IN1
Pin 8: M1
Pin 9: IN2
Note: N.C. = must be "not connected".
6. Typical application circuit
V C C
V D D
I N 1
I N 2
M 1
M 2
L o g i c G N D
G N D
A U T O
C O N T R O L L E R
p u
C O N T R O L
&
P R O T E C T I O N
C I R C U I T
O V E R T E M P
M O T O R
MLX10402
Motor Driver IC
3901010402
Page 5
Aug/02
Rev. 003
7. Reliability Information
Melexis devices are classified and qualified regarding suitability for infrared, vapor phase and wave
soldering with usual (63/37 SnPb-) solder (melting point at 183degC).
The following test methods are applied:
IPC/JEDEC J-STD-020A (issue April 1999)
Moisture/Reflow Sensitivity Classification For Nonhermetic Solid State Surface Mount Devices
CECC00802 (issue 1994)
Standard Method For The Specification of Surface Mounting Components (SMDs) of Assessed Quality
MIL 883 Method 2003 / JEDEC-STD-22 Test Method B102
Solderability
For all soldering technologies deviating from above mentioned standard conditions (regarding peak
temperature, temperature gradient, temperature profile etc) additional classification and qualification tests
have to be agreed upon with Melexis.
The application of Wave Soldering for SMD's is allowed only after consulting Melexis regarding assurance
of adhesive strength between device and board.
For more information on manufacturability/solderability see quality page at our website:
http://www.melexis.com/
8. ESD Precautions
Electronic semiconductor products are sensitive to Electro Static Discharge (ESD).
Always observe Electro Static Discharge control procedures whenever handling semiconductor products.
MLX10402
Motor Driver IC
3901010402
Page 6
Aug/02
Rev. 003
9. Disclaimer
Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in
its Term of Sale. Melexis makes no warranty, express, statutory, implied, or by description regarding the
information set forth herein or regarding the freedom of the described devices from patent infringement.
Melexis reserves the right to change specifications and prices at any time and without notice. Therefore,
prior to designing this product into a system, it is necessary to check with Melexis for current information.
This product is intended for use in normal commercial applications. Applications requiring extended
temperature range, unusual environmental requirements, or high reliability applications, such as military,
medical life-support or life-sustaining equipment are specifically not recommended without additional
processing by Melexis for each application.
The information furnished by Melexis is believed to be correct and accurate. However, Melexis shall not
be liable to recipient or any third party for any damages, including but not limited to personal injury,
property damage, loss of profits, loss of use, interrupt of business or indirect, special incidental or
consequential damages, of any kind, in connection with or arising out of the furnishing, performance or
use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow
out of Melexis' rendering of technical or other services.
2002 Melexis NV. All rights reserved.
For the latest version of this document,
go to our website at:
www.melexis.com
Or for additional information contact Melexis Direct:
Europe and Japan:
All other locations:
Phone: +32 13 67 04 95
Phone: +1 603 223 2362
E-mail: sales_europe@melexis.com
E-mail: sales_usa@melexis.com
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