L9678P datasheet(186/203 Pages) STMICROELECTRONICS

186 / 203 page

Electrical characteristics

L9678P, L9678P-S

186/203

DocID029274 Rev 3

15.18

Remote sensor interface

All electrical characteristics are valid for the following conditions unless otherwise noted.

-40 °C

 Ta  +95 °C, VINGOOD2(max)  VIN  35V, VSUP(min)  VSUP  VSUP(max).

Table 52. Remote sensor I/F DC parameters

N°

Symbol

Parameter

Condition

Min

Typ

Max

Unit

1IS_LOW

Interface quiescent

current (low signal

current level)

According to PSI-5 v1.3,

section 5.1.2 - parameter #4

Design info

-19

-4

Is

Delta signal current

IS_HIGH - IS_LOW

According to PSI-5 v1.3,

section 5.4 - parameter #6

Design Info

3VLIM_RSU

Output voltage

limitation

VSUP = VIN

According to PSI-5 v1.3,

section 5.1.1 - parameter #1

4RDSON_RSU

RSU power switch

resistance

(VVSUP – VRSU) / IRSU

IRSUx = 4-50 mA

According to PSI-5 v1.3,

section 6.2 - parameter #3

12.5

Ω

5VSTB_RSU

Output short to

battery threshold

100

6ISTB_RSU

Static reverse

current into RSU pin

VRSU > VVSUP + VSTB_RSU

7IOC_RSU

Over current

detection threshold

Interface disabled after

TFLT_STD_RSU

According to PSI-5 v1.3,

section 5.1.2 - parameter #8-9

-105

-50

8ILIM_RSU

Current limitation

RSU = 0

According to PSI-5 v1.3,

section 5.1.2, parameter #8-9

-105

-65

∆ILIM_OC_RSU

Difference between

current limitation and

OC threshold

ILIM_RSU - IOC_RSU

0.1

IB0_RSU

Internal base current

starting value

Default value of internal 7 bit

counter

-18

-15

-13

IS_TH_RSU

Trigger point for

signal current

threshold

IRSU = ILOW_RSU = -19mA to

-4mA

IB_RSU

(12-11%)

IB_RSU

(12+11%)

ILKGG_RSU

Trigger point for fault

current detection

Leakage to GND; detected by IB

-48

-36

ILKGB_RSU

Leakage to BATTERY;

detected by IB

-3.5

-1.5

IOL_RSU

Output open load

detection threshold

RSU open

ILKGB(min)

-ILKGB(max)

L9678P датащи(PDF) 186 Page - STMicroelectronics

L9678P датащи(HTML) 186 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL