TH8062 Datasheet, PDF (2/38 Pages) Melexis Microelectronic Systems – Voltage Regulator with LIN Transceiver

TH8062
Voltage Regulator with LIN Transceiver
Contents
1. Functional Diagram ............................................................................................................................... 4
2. 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
3. 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. Application Hints ................................................................................................................................. 24
4.1
Safe Operating Area ...................................................................................................................................... 24
4.2
Low Dropout Regulator .................................................................................................................................. 25
4.3
Application Circuitry ....................................................................................................................................... 27
4.4
EMI Supressing.............................................................................................................................................. 27
4.5
Connection to Flash-MCU .............................................................................................................................. 28
5. Operating during Disturbance............................................................................................................ 29
5.1
Operating without VSUP or GND ................................................................................................................... 29
5.2
Short Circuit BUS against VBAT .................................................................................................................... 29
5.3
Short Circuit BUS against GND...................................................................................................................... 29
5.4
Short Circuit TxD against GND ...................................................................................................................... 29
5.5
TxD open ....................................................................................................................................................... 29
5.6
Short Circuit VCC against GND ..................................................................................................................... 29
5.7
Overload of VCC ............................................................................................................................................ 29
5.8
Undervoltage VCC ......................................................................................................................................... 29
5.9
Undervoltage VSUP ....................................................................................................................................... 30
5.10 Short circuit RxD, RESET against GND or VCC ............................................................................................ 30
6. PIN Description .................................................................................................................................... 31
7. Mechanical Specification .................................................................................................................... 32
8. Tape and Reel Specification ............................................................................................................... 33
8.1
Tape Specification.......................................................................................................................................... 33
8.2
Reel Specification .......................................................................................................................................... 34
9. ESD/EMC Remarks .............................................................................................................................. 35
9.1
General Remarks ........................................................................................................................................... 35
9.2
ESD-Test ....................................................................................................................................................... 35
9.3
EMC ............................................................................................................................................................... 35
10. Revision History................................................................................................................................... 36
11. Assembly Information ......................................................................................................................... 37
12. Disclaimer............................................................................................................................................. 38
TH8062 – Datasheet
3901008062
Page 2 of 38
March 2006
Rev 002