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PDF MLX81100 Data sheet ( Hoja de datos )
| Número de pieza | MLX81100 | |
| Descripción | DC-Motor Controller | |
| Fabricantes | Melexis | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MLX81100 (archivo pdf) en la parte inferior de esta página. Total 19 Páginas | ||
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MLX81100
DC-Motor Controller
Features
CPU
o
o
MelexCM CPU (Dual RISC CPU – 5MIPS)
o LIN protocol controller
o 16-bit application CPU90
Internal RC-Oscillator
Memories
o 2kbyte RAM, 30kbyte Flash, 128 byte EEPROM
o Flash for series production
Periphery
o Three 16-bit timer with capture and compare
o Full duplex SPI interface
o 100-kBaud UART
o 2 high and 2 low side FET driver with protection
o Over temperature control
o Short circuit protection
o Current control
o 8-bit PWM control with programmable base frequency of 100Hz to 100kHz
o 8 high voltage I/Os
o 16-channel 10-bit ADC with high voltage option
o Independent analog watchdog
o Temperature sensor
Voltage Regulator
o Direct powered from 12V boardnet with low voltage detection
o Operating voltage VS = 7.3V to 18V
o External Load transistor for higher 5V loads or higher ambient temperature possible
o Very low standby current, < 50µA in sleep mode
Bus Interface
o LIN transceiver
o Supporting of LIN 2.x and SAE J2602
o LIN protocol software provided by Melexis
o Wake up by LIN traffic or local sources
Additional Features
o On-chip CPU debugger
o Jump start and 45V load dump protected
o Available in two package variants QFN 6x6 40 and TQFP EP 48L
MLX81100 – Product Abstract
Page 1 of 19
June 2012
Rev 021
Free Datasheet http://www.Datasheet4U.com
1 page  
MLX81100
DC-Motor Controller
2. Electrical Characteristics
2.1 Operating Conditions
Following characteristic is valid over the temperature -40deg C<TA<125deg C and supply voltage range of
7.3<VS<18V, unless otherwise noted. With VS ≤ VSmin but above reset state or inside a temperature range
125deg C<TA<150grdC the controller works correctly, analogue parameters can not be fully guaranteed. If
several pins are charged with transients above VS and below VSS, the summary of all substrate currents of
the influenced pins must not exceed 10mA for correct operation of the device. All voltages refer to ground of
IC, which is built by short of all existing ground pins, which were split to meet EMC performance and lowest
possible noise influence.
Parameter
Supply Voltage Range
Ambient Temperature
Operation current
Stand by current
Max. voltage difference
between SHNT_L and GND
Symbol
VS
TA
I_VS
I_SBY
SHNT_L
Condition/Remark
see note (*) below
No DC-load on pins
VS=13V, TA≤ 85deg
VS=18V, TA≤ 85deg
to be minimized for
optimum ADC accuracy
Min
7.3
-40
Limit
Typical
15
Max
18
125 (150*)
30
50
120
400
Unit
V
deg C
mA
uA
uA
mV
Table 1 - Operating Conditions
(*) Target temperature after qualification: With temperature applications at TA>125deg C a reduction of chip
internal power dissipation with external supply transistor is obligatory. The extended temperature range is
only allowed for a limited periods of time, customers mission profile has to be agreed by Melexis as an
obligatory part of the Part Submission Warrant (PSW). Some analogue parameter will drift out of limits, but
chip function can be guaranteed.
MLX81100 – Product Abstract
Page 5 of 19
June 2012
Rev 021
Free Datasheet http://www.Datasheet4U.com
5 Page 
MLX81100
DC-Motor Controller
3.6 Human Interface Device with DC-Motor
In this sample application the IC can realize the driving of a feedback DC motor via an external power N-FET
bridge. The high side N-FET driver is created with a bootstrap output stage. The current control of the motor
is done via shunt measurement and the reverse polarity protection of the bridge must be realized with an
external power FET connected to the ground line.
Short circuits of the bridge will be detected from fast comparators and in this case the bridge will be switched
off. Weak short circuits are monitored with an external temperature sensor. Detecting rotation direction and
positions of a rotating encoder can be easy done via the timer capture inputs. The 6 high voltage pins SW[n]
make it possible to implement a switch matrix up to 3x3 or 6 single switches.
VBAT
4.7 ..10uF
47uF
1uF
100nF
VS
RTG
VDD5V
100nF
V1V8
100nF
PS
SW0
SW1
SW3
SW4
SW5
VCC
Temperature
sensor
VCC
VCC
Rotation-
encoder
SW6
SW7
IO0
IO1
IO2
IO3
IO4
IO5
10
LIN
180p
LIN
GND
GND
VDRV
CLKO
HSBC2
HS2
BRMID2
100nF
VBAT
100nF
HSBC1
HS1
BRMID1
100nF
M
LS1
LS2
SW2
GND
SHNT_L
CWD
TI0
TI1
TO
GND
GND
CWD
Shunt
VBAT
Reverse
Polarity
Protection
Figure 7 - Application circuitry for human interface device with DC-motor
MLX81100 – Product Abstract
Page 11 of 19
June 2012
Rev 021
Free Datasheet http://www.Datasheet4U.com
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet MLX81100.PDF ] | |
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