L482 STMicroelectronics, L482 Datasheet - Page 4

• Manufacturer Part Number: L482
• Description: HALL.EFFECT PICKUP IGNITION CONTROLLER
• Manufacturer: STMicroelectronics

PIN FUNCTIONS (continued)
(*) These pins refer only to the DIP package type.
ELECTRICAL CHARACTERISTICS (V
figure 3 regarding DIP-16 package version)
L482
4/11
For the SO 16 version the permanent conduction reset output signal is not available and the pin 9 becomes the current sensing input. Pin 10
replaces the pin 11 function, pin 11 becomes the power supply input and pin 12 is used as the signal ground.
(V
Symbol
V
I
V
3C
14
V
N
13
14
15
16
V
CE sat
I
I
V
I
SENS
V
V
I
V
3D
3C
OVZ
HZ
t
I
–V
/I
Hz
S
d
I
S
Z
7
I
3D
16
)
DRIVER COLLECTOR
Operating Supply Voltage
Supply Current
Zener Voltage (pin 12)
Sensor Input (pin 2)
LOW Voltage
HIGH
Sensor Input Current (pin 2)
Hall-cell Supply Zener Voltage
(pin5)
Hall-cell Supply Zener Current
(pin5)
Series Darlington Driver Sat.
Voltage
Current Limit. Sensing Voltage
(pin10)
C2 Discharge Current
C2 Charge Current
External Darlington Overvoltage
Protection Zener Voltage
Reference Voltage
Desaturation Time
DRIVING STAGE
OVERVOLTAGE
LIMITATION
GROUND
OUTPUT
Name
Parameter
This pin must be connected to ground.
The collector current for the internal driver which drives the external
darlington is supplied through this pin. The external resistor R
dissipation in the IC. The value of the resistor depends is a function of the
darlington used and on the limiting current in the coil.
The external is protected against overvoltage by means of an internal
zener available at this pin. The external divider R
value, given as first approximation by:
V
Current Driver for the External Darlington. To ensure stability and precision
of Tdesat C
order not to change the open loop gain of the system.
R
situations.
C
external darlington type.
ovp
C
3
S
and RC values ranges are 1 to 100nF and 5 to 30K
may be added to C
= 14 V, – 40 C
V
I
V
V
I
t = 10ms
T
I
I
V
V
(*) Note 1
I
T
f = 40Hz V
30
R
Z
Hz
o
o
OVZ
AMB
AMB
12
I
S
S
S
5
= 70mA
= 150mA
= 80mA
= LOW
= 6 to 16V
= 10mA
= 6 to 16V
= 6 to 16V
= 4.5V
= 5mA to 15mA
3
5 10
= 25 C
= 25 C
and R
Test Conditions
S
3
3
= 14V
must be used. Recommended value for R3 is 2K
R
6
3
to obtain greater flexibility in various application
T
30
j
125 C referred to application circuit of
Function
Min.
–12
100
200
6.5
2.5
0.2
2.5
0.6
19
25
6
5
6
5
/R
Typ.
0.4
1.2
22
30
6
defines the limitation
depending on the
Max.
1.57
400
8.8
0.5
0.6
1.0
3.4
3.5
28
25
–1
25
20
35
35
10
limits the
Unit
mA
mA
mA
mV
ms
V
V
V
V
V
V
V
V
V
A
A
in