TH8065 datasheet(9/40 Pages) MELEXIS

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TH8065

Voltage Regulator with LIN Transceiver and Watchdog

TH8065 – Datasheet

Page 9 of 40

3901008065

May 2006

Rev 003

2.4 Dynamic Characteristics

≤ VSUP ≤ 18V, -40°C ≤ TA ≤ 125°C, unless otherwise specified

Parameter

Symbol

Condition

Min

Typ

Max

Unit

[1]

RESET and Watchdog

VSUP = 12V,Vers. “A”

5.6

10.4

VSUP = 12V,Vers. “B”

2.8

5.2

VSUP = 12V,Vers. “C”

Reset time

tRes

VSUP = 12V,Vers. “D”

10.5

19.5

Reset rising time

trr

VSUP = 12V

3.0

6.5

μs

Discharge time CWD-capacity

tfCWD

CWD = 10nF,

ΔVCWD = 1V

µs

Watchdog period

tWD_per

CWD = 1nF ±1%

0.63

1.1

1.54

Watchdog reset time

tWD_R

CWD = 1 nF ±1%

100

140

µs

Wake-up and Mode Select

Wake up time

twake_BUS

150

μs

Debouncing time EN

tdeb_EN

µs

Propagation delay EN to sleep mode

tpd_EN_sleep EN = High to Low

400

µs

Propagation delay EN to normal mode

tpd_EN_norm EN = Low to High

400

µs

Setup time TxD to EN for low slew mode

tset_TxD_LS TxD = Low before

EN = L/H

µs

Hold time TxD after EN for low slew mode

thold_TxD_LS TxD = Low after

EN = L/H

µs

General LIN Parameter

Slew rate rising edge BUS

dV/dTrise

0.8

1.5

2.5

V/µs

Slew rate falling edge BUS

dV/dTfall

Normal Mode

BUS-Load:

1kOhm/1nF

-2.5

-1.5

-0.8

V/µs

Slew rate rising edge BUS

dV/dTrise

0.3

0.8

1.3

V/µs

Slew rate falling edge BUS

dV/dTfall

Low Slew Mode

BUS-Load:

1kOhm/1nF

-1.3

-0.8

-0.3

V/µs

Receiver debouncing time

tdeb_BUS

1.5

2.8

4.0

µs

Receiver propagation delay BUS->RxD

tdr_RxD

tdf_RxD

CL(RXD) = 50 pF

µs

Symmetry propagation delay BUS->RxD

tdsym_RxD

tdr_RXD - tdf_RXD

-2

µs

Internal capacity

CBUS

Pulse at BUS via

10kOhm with 0/10 V;

VSUP = open

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