3/8

L9468

Notes:

1. 20 Volts is the maximum operating voltage because above this level the FAILSAFE feature shuts down the output stage.

2. Thermal slopes are shown in fig. 2

3. This value is present when the voltage sensed at the " S" or "VGO" terminal is between VUV and VOV. When the voltage sensed

at the "S" or "VGO" terminal is above VOV the Minimum Field Duty-Cycle will be 0 %.

Figure 4. Reverse B+ Test Circuit

Table 5. Electrical Characteristcs

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Operating Supply Voltage

8

V

Operating Supply Voltage

10

20

V

Stand-by Current

400

µA

Stand-by Current

1

mA

Regulator Set-Point

@ 71°C ± 3°C

14.1

V

Generator output, no battery

Load

V

Thermal compensation

V

Load Regulation

6500 grpm, 10% to 95% load

300

mV

Speed Regulation

15A load, 2,000 to 10,000 grpm

100

mV

Output Saturation Voltage

750

mV

Output Saturation Voltage

850

mV

Field limit current

F terminal shorted to GND @ 25°C

8.3

A

F terminal shorted to GND @ 150°C

5

A

Field Discharge Rectifier

1.85

V

Diode Reverse Current

1

mA

Oscillation frequency

During LRC operation

340

400

460

Hz

MFDC

Minimum Field Duty-Cycle

3

6.25

%

5

15

K

Ω

1.8

Ω

FIELD

ASVR

S

F

L

I

P

F

G

INCANDESCENT

LOAD 14

Ω

D02AT505

POWER SUPPLY

6V

+-

POWER SUPPLY

2.5V

-+