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IGN4 Ignition Module
IGN4 Ignition Module
IGN4 Ignition Module
Part No: #41212

OVERVIEW

The IGN4 Ignition Module - 4 Channel is a high current ignition coil driver for use with most inductive ignition coils.

This device does not incorporate dwell control, current limiting or current sensing, so should only be used in systems which offer precise dwell control using multi-tooth crankshaft reference sensors.

When using the IGN4, dwell tables for existing ignition modules (for example Bosch BIM-series) are not appropriate. The IGN4 should only be used with coils and data provided by MoTeC. Contact MoTeC with specific coil and engine data before choosing this device for an application. CAUTION: the IGN4 module must only be used in applications approved by MoTeC. Incorrect use may cause serious damage to the coils and IGN4 unit.

FEATURES

  • Four independent 20 ampere circuits with common ground
  • Very fast, 12 µs switching time
  • Fully sealed case suitable for under bonnet mounting

COMPATIBILITY

MoTeC ECU Models
  • M1 Series (package dependant).

APPLICATIONS

  • Coil-on-Plug coils (e.g. Denso 129700­4410, 129700-3960, 129700-5150, 129700 -3881)
  • Coils with primary resistance > 1 Ohm

SPECIFICATIONS

Electrical

4 identical channels, each with:

  • Output current:
    • Continuous at 50 °C (case temp) - 20 A
    • Pulsed - 40 A
  • Switching time - 12 μs
  • Input threshold:
    • minimum 1.0 V
    • maximum 2.4 V
  • Input impedance - 15 kΩ to ground
  • Primary side clamping voltage 410 V
  • Maximum stored coil energy at peak current 700 mJ
Physical
  • Size: 38.0 x 31.4 x 14.0 mm
  • Weight: approx 60 g plus connectors
  • Connectors:
    • Input: 4 pin DTM male
    • Output: 6 pin DTM male
  • Maximum case temperature 125 °C

DIMENSIONS AND MOUNTING

It is preferable to mount the IGN4 to a metal heat sinking surface; for example an engine bulkhead.

CONNECTOR PINOUTS

Connector 1 – Input

4 pin DTM connector.

Mating connector #68054

Pin Name Function
1 IGN1 Ignition 1 input signal from ECU
2 IGN2 Ignition 2 input signal from ECU
3 IGN3 Ignition 3 input signal from ECU
4 IGN4 Ignition 4 input signal from ECU
Connector 2 – Output

6 pin DTM connector.

Mating connector #68056

Pin Name Function
1 COIL 1 Ignition coil number 1 output
2 COIL 2 Ignition coil number 2 output
3 COIL 3 Ignition coil number 3 output
4 COIL 4 Ignition coil number 4 output
5 GND Ground
6 GND Ground

CONFIGURATION

This procedure describes the configuration for the GPR package using M1 Tune.

On the Initial Setup Ignition Configuration worksheet:

Parameter Value
Ignition Driver Firing Edge Falling Edge
Ignition Driver Delay 12 µS
Ignition Driver Current 40 mA
Ignition Charge Time Ignition Coil Specific

IGN4 TRUTH TABLE

Input Output4
Low Unswitched (high impedance)
High Switched to ground

WIRING

Refer to the relevant M1 datasheet for the default ECU pinout.

The M1 designation is IGN_LS (Low Side Ignition).

In addition to the information here; from the Help menu in M1 Tune, see the Firmware Wiring help for the ECU Pin List.

IGN4 Connector 1 IGN4 Connector 2
IGN4 Pin IGN4 Name M1 ECU Name IGN4 Pin IGN4 Name M1 ECU Name Coil Coil Pin Coil Name
1_1 IGN1 IGN_LS1 2_1 COIL1 — # 1 - VE Coil -
1_2 IGN2 IGN_LS2 2_2 COIL2 — # 2 - VE Coil -
1_3 IGN3 IGN_LS3 2_3 COIL3 — # 3 - VE Coil -
1_4 IGN4 IGN_LS4 2_4 COIL4 — # 4 - VE Coil -
2_5 GND BAT_NEG — — —
2_6 GND BAT_NEG — — —

PURCHASING

If you are interested in purchasing this product contact an Authorised MoTeC Dealer.

DOWNLOADS

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OVERVIEW

FEATURES

COMPATIBILITY

APPLICATIONS

SPECIFICATIONS

DIMENSIONS AND MOUNTING

CONNECTOR PINOUTS

CONFIGURATION

IGN4 TRUTH TABLE

WIRING

PURCHASING

DOWNLOADS