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IRMCF143TY Datasheet(PDF) 10 Page - International Rectifier

Part # IRMCF143TY
Description  High Performance Position Servo Control IC
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IRMCF143TY Datasheet(HTML) 10 Page - International Rectifier

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IRMCF143S
10
www.irf.com
© 2013 International Rectifier
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SDA/CS0
Input/output, I
2C Data line or SPI chip select 0
I
2C/SPI Interface
SCL/SO-SI
Output, I
2C clock output, or SPI data
SDA/CS0
Input/output, I
2C data line or SPI chip select 0
P1.3/SYNC/SCK
Input/output port 1.3, can be configured as SYNC output or SPI clock output
P3.0/CS1
Input/output port 3.0, can be configured as SPI chip select 1
4.2
Motion Peripheral Interface Group
PWM
PWMUH
Output, PWM phase U high
side gate signal, internally pulled down by 58kΩ,
configured high true at a power up
PWMUL
Output, PWM phase U low side gate signal, internally pulled down by 58kΩ,
configured high true at a power up
PWMVH
Output, PWM phase V high side gate signal, intern
ally pulled down by 58kΩ,
configured high true at a power up
PWMVL
Output, PWM phase V low side gate signal, internally pulled down by 58kΩ,
configured high true at a power up
PWMWH
Output, PWM phase W high side gate signal, internally pulled down by 58kΩ,
configured high true at a power up
PWMWL
Output, PWM phase W low side gate signal, internally pulled down by 58kΩ,
configured high true at a power up
BRAKE
Output, BRAKE
output signal, internally pulled up by 70kΩ, configured low true at a
power up
Fault
GATEKILL
Input, upon assertion this negates all six PWM signals, active low, internally pulled
up by 70kΩ
BRAKEGK
Input, upon assertion, this negates BRAKE signal, active low, internally pulled up by
70kΩ
4.3
Analog Interface Group
AVSS
Analog power return, (analog internal 1.8V power is shared with VDDCAP)
AREF
0.6V buffered output
CMEXT
Unbuffered 0.6V, input to the AREF buffer, capacitor needs to be connected.
OP1+
Input, Operational amplifier positive input for application sensing
OP1-
Input, Operational amplifier negative input for application sensing
OP1O
Output, Operational amplifier output for application sensing
IFBU+
Input, Operational amplifier positive input for U phase current sensing
IFBU-
Input, Operational amplifier negative input for U phase current sensing
IFBUO
Output, Operational amplifier output for U phase current sensing
IFBV+
Input, Operational amplifier positive input for V phase current sensing
IFBV-
Input, Operational amplifier negative input for V phase current sensing
IFBVO
Output, Operational amplifier output for V phase current sensing
VDCBUS
Input, Analog input channel (0 – 1.2V), allocated for DC bus voltage input
AIN1
Input, Analog input channel 1 (0 – 1.2V), allocated by MCE as speed input, needs to
be pulled down to AVSS if unused


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