L9911F datasheet(9/19 Pages) STMICROELECTRONICS

9 / 19 page

L9911

Electrical specification

Doc ID10990 Rev 12

9/19

If_leak

Output field driver leakage current B+ = 24 V; VF+ = 0

A

DUTY-PR

Phase regulation max field ON

duty

see Figure 7

26.56

31.25

35.94

VH_SAT

High side driver saturation

Voltage (see Figure 9)

With driver Isource = 500 mA

1.5

VL_SAT

Low side driver saturation voltage

(see Figure 9)

With driver Isink = 500 mA

1.5

VLSB

Self bias without supply lamp

driver voltage

B+ open; L connected to 12 V

through a 50 Ohm resistor

IHSC

High side driver short circuit

current protection

B+ = 12.5 V; L = GND

1.2

ILSC

Low side driver short circuit

current (see Figure 15)

B+ = L = 12.5 V

VthL

Enable regulator supply voltage

threshold

-0.8

1.15

Ipd_L

L terminal pull-down current when

the generator is not rotating

VL = 0.6 V

0.4

3.5

IL_sink

L sink current when the generator

is rotating

P frequency 500 Hz; VB+ = 12 V

100

µA

t-D

Diagnostic alarm delay time

0.2

0.5

Vcan-DFM

Test mode to cancel soft start/

attack (voltage)

(see Figure 10)

tcan-DFM

Test mode delay time

VPHL1

Enable control voltage input high

threshold

0.40

VPHL2

Enable control voltage input low

threshold

0.25(1)

tPHL1

Enable Control Voltage Phase

Filtering Time

-50

115

s

VPHH1

Diagnosis phase loss input high

threshold

-8

VPHH2_1

Diagnosis phase loss input low

threshold

-6.4

7.4

8.4

tPHd

Diagnostic phase filtering time

100

µs

IPd-P1

Phase pull-down current

VP = 0.8 V

f-dfm

DFM output open drain switching

freq.

Ialt =1 A~0.9 · Inom;

1400 rpm < rpm < RPMMAX;

Isink = 4 mA

125

200

VL-DFM

Output low voltage saturation

I-sink = 14 mA

1.5

I-SC_DFM

Short circuit current protection

VB+ = VDFM = 12.5 V

400

Ilk-DFM

Output leakage current

VDFM =16 V at DFM driver OFF

µA

Table 5.

Electrical characteristics (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

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