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Digital Pulsed Outputs (DPO)
Digital Pulsed Outputs are capable of producing
pulsed waveforms with varying duty and
frequency.
When a Digital Pulsed Output is activated by the
ECU the output will switch to ground.
The pull-up voltage specifies the waveforms
maximum voltage output eg 0 to 12V or 0 to 5V.
DPOs can be used to control various low-
current devices such as shift lights, bypass
air control valves, boost control solenoids,
tachometers etc.
Specs:
• Individual software-selectable 12V or 5V
4k7 pull-up
• Flyback protected
• Capable of switching 3A to ground
• 10kHz switching speed
• Automatic overcurrent protection
• 0 to 27V voltage feedback
DPO
HCO
Ensure the High Current Output (8A or 25A)
used to power solenoids and other devices is
capable of supplying the required current.
HBO 1
HBO 2
HBO 3
HBO 4
Example wiring connection
Half Bridge Outputs (HBO)
Half Bridge Outputs are push-pull pulse width
modulated (PWM) outputs. If not being used as
push-pull drivers, Half Bridge Outputs can be
used as generic high/low PWM outputs capable
of sinking 8A to ground and driving 8A to 12V at
2.2kHz.
TO OTHER
Example wiring connection
DEVICES
17
HBOs can be used to control any push-pull type
device such as DBW throttle motors (max of 2
wired separately) and stepper motors.
When used as generic high/low switched or
PWM outputs, Half Bridge Outputs can be
used as generic low-side DPOs or to control
devices such as high-side driven solenoids (e.g.
VTEC Solenoids), high side switched automatic
transmission solenoids etc.
Specs:
• Capable of sinking 8A to ground and
BOOST
CONTROL
driving 8A to 12V
SOLENOID
• Automatic Overcurrent and
Overtemperature Protection
• 0 to 27V voltage feedback
• High side current feedback
• 18kHz switching speed in DBW mode
• Capable of 0-100% duty cycle
DBW THROTTLE 1
DBW THROTTLE 2
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