L9484 datasheet(3/8 Pages) STMICROELECTRONICS

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3/8

L9484

°C (for example, Field Drive shall be capable of

≥7.2A at 100°C).

ELECTRICAL CHARACTERISTCS

(Tcase = -35°C to +150°C continuous unless otherwise specified)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

VOS

Operating Supply Voltage

Tcase = +25°C to =150°C8

Vov

VOS

Operating Supply Voltage

Tcase = -40°C to +25°C

Vov

ISB

Stand-By Current

VGO = 12.6V; Tcase = 25°C; 10kΩ

VGO to TS; F+, G & Tab (Slug)

Grounded; L, DF, & P

unconnected; Regulator NOT

Activated.

300

µA

VSP

Regulator Set-Point

10k

Ω between VGO and TS

Curve shown in Fig. 2

VSP

Regulator Set-Point

NTC thermistor with R25°C =

10k

Ω; Tj = 90°C

Curves shown in Fig. 3

(with MURATA NTC NTH4G39A1)

VNB

Generator Output, No Battery

No battery, IOUT = 2A to 50%

Max. Load

VSP - 2

VSP +

Thermal Compensation

Voltage @ VGO

Curves shown in Figs. 2, 3

VLR

Load Regulation

6500 grpm, 10% to 95% load

300

VSR

Speed Regulation

15A load, 2000 to 20,000 grpm

100

VF-ON

Output Saturation Voltage

IF = 6A, VGO = 14.0V, Tcase =

°C

750

VF-ON

Output Saturation Voltage

IF = 5A, VGO = 13.5V, Tcase =

125

°C

850

IF-LIM

Field Limit Current1

Current F+ Terminal to Gnd.

@ Tcase ≤ 25°C

9.0

IF-LIM

Field Limit Current1

Current F+ Terminal to Gnd.

@ Tcase = +150°C

6.0

IG-MIN

Min. Generator Current Load

Current measured @ generator

output

0.5

VD-F

Field Discharge Diode

IF = 6A, Tcase = 25°C1.85

ID-R

Diode Reverse Current

VR = 20V

FOSC

Oscillation Frequency

During LRC operation

340

400

460

VDF

DF Saturation Voltage

IDF ≤ 10mA

0.8

IDF-LK

DF Output Leakage Current

VDF < 25V

µA

FTURBO

Internal Clock Frequency

VDF = 32 - 35V; thru 2.2kΩ

FTURBO

IRD, SS, LRC Rate

VDF = 32 - 35V; thru 2.2kΩ÷ 16

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