Data Sheet

22

Rev. 1.2, 2016-01-28

TLE7186F

Interface, VDH Switch and INH Digital Output

8.2

VDHS Switch

The System IC has an integrated switch connecting the VDH pin to the VDHS pin. This allows to place an external

voltage divider for VDH voltage monitoring at the VDHS pin and to disconnect this voltage divider from VDH during

sleep mode to assure low current consumption. The VDHS switch is only deactivated when the VDD regulator is

switched off.

8.3

Digital Output INHD

The System IC provides a digital output INHD showing the logic state of INH (e.g. KL15) after a complete wake-

up of the driver (approx. 1ms). The input levels of INH for the INHD output are defined separately from the levels

for wake-up. Voltage levels for INH wake-up function please see Chapter 9.4 section Wake-up and go-to-sleep.

The output stage consists of an integrated low side switch with a pull-up resistor to VDD.

8.4

Electrical Characteristics

Electrical Characteristics - Protection and diagnostic functions

V

(unless otherwise specified)

Pos.

Parameter

Symbol

Limit Values

Unit

Conditions

Min.

Typ.

Max.

Interface - static parameters

8.4.1

IFMA input voltage high level

(for IFµC high)

V

IMHL

59

––%

of

V

Sleep Mode

8.4.2

IFMA input voltage low level

(for IFµC low)

V

IMLL

––

46

%

of

V

Sleep Mode;

8.4.3

IFMA input hysteresis

(for IFµC)

V

IMhy

0.5

–9%

of

V

Sleep Mode

8.4.4

IFMA wake up voltage high level

=

V

V

IMWH

2

–

4

V

valid in Sleep Mode

8.4.5

IFMA low time to guarantee wake-

up

t

IFlow

100

––µs

V

8.4.6

IFMA internal pull-up resistor to

V

S

R

IMu

210

340

495

k

Ω

–

8.4.7

IFMA internal pull-down resistor to

GND

R

IMd

420

700

980

k

Ω

not active in Sleep

Mode

8.4.8

IFMA input current related to VS

V

V

I

-2.0

-3.0

–

–

+2.0

+1.0

µA/V

–

8.4.9

IFµC output low voltage

V

IuLL

–

–

0.5

V

no external load

8.4.10

IFµC internal pull-up resistor to

V

8.5

–

23

k

Ω

–

Interface - dynamic parameters

8.4.11

IFµC duty cycle

d

Iu

0–

100

%

–

8.4.12

Propagation time rising edge IFµC

t

PRE

–

–

6

µs

Including rise time

to 80% of

V

C

8.4.13

Propagation time falling edge IFµC

t

PFE

–

–

5

µs

Including fall time to

20% of

V