L9911(2005) Ver la hoja de datos (PDF) - STMicroelectronics

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componentes Descripción

Fabricante

L9911
(Rev.:2005)

CAR ALTERNATOR MULTIFUNCTION SMART VOLTAGE REGULATOR

STMicroelectronics 

L9911

Table 5. ELECTRICAL CHARACTERISTCS (continued)

(Tj = -40°C to 150°C; unless otherwise specified)

Symbol

Parameter

Test Condition

Min. Typ. Max. Unit

DUTY-PR Phase regulation max field

ON duty

Fig. 8

26.56 31.25 35.94 %

VH_SAT High Side Driver Saturation With driver Isource=500mA

Voltage (Fig. 10)

1.5

V

VL_SAT Low Side Driver Saturation With driver Isink=500mA

Voltage (Fig. 10)

1.5

V

VLSB Selfbias without supply Lamp B+ open; L connected to 12V

driver Voltage

through a 50 Ohm resistor

4

V

IHSC

High Side Driver short circuit B+ = 12.5V; L = GND

current protection

1.2

3

A

ILSC

Low Side Driver short circuit B+ = L = 12.5V

current (see fig. 16)

1

2

A

VthL

Enable Regulator Supply

Voltage Threshold

0.8

1.15

Ipd_L

L terminal Pull-down Current VL = 0.6V

when the generator is not

rotating

0.4

3.5

mA

I_L_sink L sink current when the

generator is rotating

P frequency 500Hz; VB+ = 12V

100

µA

t-D

Diagnostic Alarm Delay Time

0.2

0.5

s

Vcan-DFM Test mode to cancel soft

start/ attack (voltage)

(Fig. 11)

30

50

V

tcan-DFM Test mode delay time

(Fig. 11)

25

ms

VPHL1 Enable control voltage input square wave f = 1KHz

high threshold

0.35

V

VPHL2 Enable control voltage input square wave f = 1KHz

low threshold

0.25

V

t_PHL1 Enable Control Voltage

Phase Filtering Time

50

115

µs

VPHH1 Diagnosis phase loss input

high threshold

8

9

10

V

VPHH2_1 Diagnosis phase loss input

low threshold

6.4

7.4

8.4

V

tPHd

Diagnostic Phase Filtering

Time

50

100

µs

I_Pd-P1 Phase Pull-down Current

VP = 0.8V

1

8

mA

f-dfm

DFM Output open drain

switching freq.

Ialt=1A~0.9*Inom;1400rpm<rpm<R 125

PMMAX; I_sink=14mA

200 Hz

VL-DFM Output low voltage saturation I-sink=14mA

1.5

V

I-SC_DFM Short circuit current

protection

VB+ = VDFM = 12.5V

50

400 mA

Ilk-DFM Output leakage current

VDFM=16V at DFM driver OFF

5

µA

t-TM Output voltage rise time

R=1K Ohm (Fig. 7)

0.5

50

µs

t-TD Output voltage fall time

R=1K Ohm (Fig. 7)

0.5

50

µs

4/15

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