Ignition Controller for Motorcycle
HSiN Semiconductor Pte Ltd
HS2981
www.hsin.com.sg
1. Overview
The HS2981 is an ignition controller IC for large power motorcycle. It has features of high
reliability, convenience and simple circuit.
Low number of external components
Easy adjustment
Low quiescent current (Typ 15mA) and low power dissipation
Ignition time and power is set according to the motor rotation speed
DIP24
2. Block Diagram and Pin Description
2.1 Block Diagram
7
8
9
10
11
22
Vref
1
Vref
Angle
ADJ
19
AMP
Pulse
ADJ
Ignition
Pulse
Generation
Output Pulse
Adjustment
Ignition
Pulse
Output
15
Bias Adjustment
21
24
16
14
Bias Adjustment
2
3
6
20
4
5
23
18
17
13
12
2.2
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
Symbol
V
ref1
ADJ
V1
V
ref2
ADJ
V2
ADJ
V3
V
ref3
ADJ
I1
ADJ
I2
ADJ
I3
ADJ
I4
ADJ
I5
GND
Description
Reference Voltage 1
Voltage Adjustment 1
Reference Voltage 2
Voltage Adjustmen2
Voltage Adjustmen3
Voltage Adjustmen3
Current Adjustment 1
Current Adjustment 2
Current Adjustment 3
Current Adjustment 4
Current Adjustment 5
GND
Pin No.
13
14
15
16
17
18
19
20
21
22
23
24
Symbol
GND
ADJ
VO1
V
O
ADJ
VO2
GND
NC
V
in
NC
V
CC
DISCHG
CHG
V
ref4
Description
GND
Output Adjustment 1
Output
Output Adjustment 2
GND
NC
Input
NC
Supply Voltage
Discharge
Charge
Reference Voltage 4
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