l9473 STMicroelectronics, l9473 Datasheet - Page 3

• Manufacturer Part Number: l9473
• Description: Car Alternator Voltage Regulator
• Manufacturer: STMicroelectronics

Table 5. ELECTRICAL CHARACTERISTCS
(T
Notes: 1. The Field Drive capability shall not decrease as a function of temperature between 25°C and 150°C, at a rate faster than -0.024A/
Symbol
F
case
V
V
I
I
I
I
F
TURBO
G-MIN
DF-LK
V
V
V
V
V
F-LIM
F-LIM
V
V
V
I
V
I
F-ON
F-ON
T
D-R
OSC
SB
D-F
OS
OS
SP
SP
NB
LR
SR
DF
C
= -35°C to +150°C continuous unless otherwise specified)
°C (for example, Field Drive shall be capable of ≥7.2A at 100°C).
Operating Supply Voltage
Operating Supply Voltage
Stand-By Current
Regulator Set-Point
Regulator Set-Point
Generator Output, No Battery
Thermal Compensation
Load Regulation
Speed Regulation
Output Saturation Voltage
Output Saturation Voltage
Field Limit Current
Field Limit Current
Min. Generator Current Load
Field Discharge Diode
Diode Reverse Current
Oscillation Frequency
DF Saturation Voltage
DF Output Leakage Current
Internal Clock Frequency
Parameter
1
1
T
T
V
V
Grounded; L, DF, & P
unconnected; Regulator NOT
Activated.
10kΩ between V
NTC thermistor with R
10kΩ; T
No battery, I
Max. Load
Voltage @ V
6500 grpm, 10% to 95% load
15A load, 2000 to 20,000 grpm
I
25°C
I
125°C
Current F+ Terminal to Gnd.
@ T
Current F+ Terminal to Gnd.
@ T
Current measured @ generator
output
I
V
During LRC operation
I
V
V
F
F
F
DF
case
case
GO
GO
R
DF
DF
= 6A, V
= 5A, V
= 6A, T
= 20V
≤ 10mA
case
case
< 25V
= 32 - 35V; thru 2.2kΩ
= 12.6V; T
to TS; F+, G & Tab (Slug)
= +25°C to =150°C
= -40°C to +25°C
j
≤ 25°C
= +150°C
Test Condition
= 90°C
GO
GO
case
OUT
GO
= 14.0V, T
= 13.5V, T
= 25°C
case
GO
= 2A to 50%
= 25°C; 10kΩ
and TS
25°C
case
case
=
=
=
V
(with MURATA NTC NTH4G39A1)
Min.
SP
340
9.0
6.0
0.5
10
8
Curves shown in Figs.4, 5
- 2
Curves shown in Fig. 3
Curve shown in Fig. 2
Typ.
400
4X
V
Max.
1.85
300
300
100
750
850
460
Vov
Vov
0.8
SP
10
2
1
+
L9473
Unit
mV
mV
mV
mV
mA
µA
Hz
µA
Hz
V
V
V
A
A
A
V
V
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