TH8062KDCAD datasheet, PDF - EEWORLD Datasheet

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TH8062KDCAD: DescriptionVoltage Regulator with LIN Transceiver; File Size710KB，38 Pages; ManufacturerMelexis; Websitehttps://www.melexis.com/zh

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TH8062KDCAD Overview

Voltage Regulator with LIN Transceiver

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TH8062

Voltage Regulator with LIN Transceiver

Features

Compatible to LIN Specification 2.0 and SAE J2602

Operating voltage V

= 6 ... 18 V

Low standby current consumption of typ. 15

μA

in sleep mode

“noload” current < 200µA

Linear low drop voltage regulator 5V/70mA ±2%

Output current limitation

LIN-Bus Transceiver

Compatible to ISO9141 functions

Baud rate up to 20 kBaud

Slew rate control for best EME behavior

Low slew mode for optimized SAE J2602 transmission

High EMI immunity

High signal symmetry for using in RC – based slave nodes up to 2% clock tolerance

Current limitation

Bus input voltages -24V to 30V independent from VBat

Wake-up via LIN bus traffic

Reset output (default 8ms/4.65V)

Reset time adjustable to 4ms, 15ms and 30ms during IC final test

Over temperature shutdown

Automotive temperature range of –40°C to 125°C

CMOS compatible interface to microcontroller

Load dump protected (40V)

Small SOIC8 package

Pin compatible to the Melexis TH8061

Ordering Information

Part No.

TH8062 KDC AA

On Request

TH8062 KDC AB

TH8062 KDC AC

TH8062 KDC AD

Temperature Range

K (-40 to 125 °C)

Package

DC (SOIC8)

Version

POR-Time

A (8ms)

B (4ms)

C (30ms)

D (15ms)

General Description

The TH8062 consists of a low-drop voltage regulator 5V/70mA and a LIN bus transceiver. The LIN

transceiver is suitable for LIN bus systems conform to LIN specification revision 2.0 and SAE J2602.

The combination of voltage regulator and bus transceiver makes it possible to develop simple, but powerful

and cheap slave nodes in LIN Bus systems.

TH8062 – Datasheet

3901008062

Page 1 of 38

March 2006

Rev 002

TH8062

Voltage Regulator with LIN Transceiver

Contents

Functional Diagram ............................................................................................................................... 4

Electrical Specification.......................................................................................................................... 5

2.1

Operating Conditions ....................................................................................................................................... 5

2.2

Absolute Maximum Ratings ............................................................................................................................. 5

2.3

Static Characteristics ....................................................................................................................................... 6

2.3.1.

Voltage Regulator and Reset Unit .......................................................................................................... 6

2.3.2.

LIN Bus Interface.................................................................................................................................... 8

2.4

Dynamic Characteristics .................................................................................................................................. 9

2.5

Timing Diagrams ............................................................................................................................................ 11

Functional Description ........................................................................................................................ 13

3.1

Operating Modes............................................................................................................................................ 13

3.2

Initialization .................................................................................................................................................... 15

3.3

Wake-Up ........................................................................................................................................................ 15

3.4

VSUP under voltage reset.............................................................................................................................. 16

3.5

Overtemperature Shutdown ........................................................................................................................... 16

3.6

LIN BUS Transceiver ..................................................................................................................................... 17

3.7

Linear Regulator............................................................................................................................................. 20

3.8

RESET ........................................................................................................................................................... 21

3.8.1.

Programmability of Power-ON-Reset Delay ......................................................................................... 21

3.9

Mode Input EN ............................................................................................................................................... 22

4.1

4.2

4.3

4.4

4.5

Application Hints ................................................................................................................................. 24

Safe Operating Area ...................................................................................................................................... 24

Low Dropout Regulator .................................................................................................................................. 25

Application Circuitry ....................................................................................................................................... 27

EMI Supressing.............................................................................................................................................. 27

Connection to Flash-MCU .............................................................................................................................. 28

Operating during Disturbance............................................................................................................ 29

5.1

5.2

5.3

5.4

5.5

5.6

5.7

5.8

5.9

5.10

Operating without VSUP or GND ................................................................................................................... 29

Short Circuit BUS against VBAT .................................................................................................................... 29

Short Circuit BUS against GND...................................................................................................................... 29

Short Circuit TxD against GND ...................................................................................................................... 29

TxD open ....................................................................................................................................................... 29

Short Circuit VCC against GND ..................................................................................................................... 29

Overload of VCC ............................................................................................................................................ 29

Undervoltage VCC ......................................................................................................................................... 29

Undervoltage VSUP ....................................................................................................................................... 30

Short circuit RxD, RESET against GND or VCC ............................................................................................ 30

8.1

8.2

PIN Description .................................................................................................................................... 31

Mechanical Specification .................................................................................................................... 32

Tape and Reel Specification ............................................................................................................... 33

Tape Specification.......................................................................................................................................... 33

Reel Specification .......................................................................................................................................... 34

9.1

9.2

9.3

ESD/EMC Remarks .............................................................................................................................. 35

General Remarks ........................................................................................................................................... 35

ESD-Test ....................................................................................................................................................... 35

EMC ............................................................................................................................................................... 35

10.

11.

12.

Revision History................................................................................................................................... 36

Assembly Information ......................................................................................................................... 37

Disclaimer............................................................................................................................................. 38

TH8062 – Datasheet

3901008062

Page 2 of 38

March 2006

Rev 002

TH8062

Voltage Regulator with LIN Transceiver

List of Figures

Figure 1 - Block diagram.......................................................................................................................... 4

Figure 2 - Timing diagram for propagation delays................................................................................. 11

Figure 3 - Timing diagram for duty cycle acc. to LIN 2.0 and J2602..................................................... 11

Figure 4 - Timing Diagram for EN mode selection ................................................................................ 12

Figure 5 - State diagram of operating modes........................................................................................ 13

Figure 6 - Operating of power-on and under-voltage reset ................................................................... 15

Figure 7 - Receive mode impulse diagram............................................................................................ 17

Figure 8 - TxD input circuitry ................................................................................................................. 18

Figure 9 - RxD output circuitry............................................................................................................... 19

Figure 10 - Characteristic of current limitation VCC = f (I

VCC

) ............................................................... 20

Figure 11 - Reset behaviour .................................................................................................................. 21

Figure 12 - Output current of reset output vs. VCC voltage .................................................................. 21

Figure 13 - EN input circuitry ................................................................................................................. 22

Figure 14 - EN controlled via MCU........................................................................................................ 22

Figure 15 - Permanent normal mode..................................................................................................... 23

Figure 16 - Power dissipation LIN transceiver @ 20kbit ....................................................................... 24

Figure 17 - Save operating area............................................................................................................ 25

Figure 18 - ESR Curves for 6.8μF

≤

100μF and Frequency of 100 kHz ....................................... 26

Figure 19 - Application circuit (slave node) ........................................................................................... 27

Figure 20 – Example circuitry for connection of RxD to MCU for flash programming........................... 28

TH8062 – Datasheet

3901008062

Page 3 of 38

March 2006

Rev 002

TH8062KDCAD Related Products

	TH8062KDCAD	TH8062KDCAC	TH8062KDCAB	TH8062KDCAA	TH8062
Description	Voltage Regulator with LIN Transceiver	Voltage Regulator with LIN Transceiver	Voltage Regulator with LIN Transceiver	Voltage Regulator with LIN Transceiver	Voltage Regulator with LIN Transceiver

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