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MCP2022A Datasheet

Download or read online Microchip Technology MCP2022A LIN Transceiver With Voltage Regulator pdf datasheet.



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LIN Transceiver with Voltage Regulator
Features
• The MCP2021A/2A is compliant with:
- LIN Bus Specifications Version 1.3, and 2.x.
- SAE J2602-2
• Support Baud Rates up to 20 kBaud
• 43V Load Dump Protected
• Maximum Continuous Input Voltage of 30V
• Wide LIN Compliant Supply Voltage, 6.0 - 18.0V
• Extended Temperature Range: -40 to +125°C
®
• Interface to PIC
EUSART and Standard USARTs
• Wake-up on LIN Bus Activity or Local Wake Input
• LIN Bus Pin
- Internal Pull-up Termination Resistor and
Diode for Slave Node
- Protected Against V
Shorts
BAT
- Protected Against Loss of Ground
- High Current Drive
• TXD and LIN Bus Dominant Time-out Function
• Two Low-Power Modes
- TRANSMITTER OFF Mode: 9 µA (typical)
- POWER DOWN Mode: 4.5µA (typical)
• Output Indicating Internal RESET State (POR or
SLEEP Wake)
• MCP2021A/2A On-chip Voltage Regulator
- Output Voltage of 5.0V or 3.3V 70 mA
Capability withTolerances of ±3% Over
Temperature Range
- Internal Short Circuit Current Limit
- Only External Filter and Load Capacitors
Needed
• Automatic Thermal Shutdown
• High Electromagnetic Immunity (EMI), Low Elec-
tromagnetic Emission (EME)
• Robust ESD Performance: ±15 kV for LBUS and
VBB pin (IEC61000-4-2)
• Transient Protection for LBUS and VBB Pins in
Automotive Environment (ISO7637)
• Meets Stringent Automotive Design Requirements
Including “OEM Hardware Requirements for LIN,
CAN and FlexRay Interfaces in Automotive Appli-
cations”, Version 1.2, March 2011
• Multiple Package Options Including Small
4x4 mm DFN
 2012 Microchip Technology Inc.
MCP2021A/2A
Description
The MCP2021A/2A provides a bidirectional, half-
duplex communication physical interface to meet the
LIN bus specification Revision 2.1 and SAE J2602-2.
The device incorporates a voltage regulator with 5V or
3.3V 70 mA regulated power supply output. The device
has been designed to meet the stringent quiescent
current requirements of the automotive industry and
will survive +43V load dump transients, and double
battery jumps.
Package Types (Top View)
MCP2021A
PDIP, SOIC
RXD
1
8
2
7
CS/LWAKE
VREG
3
6
TXD
4
5
MCP2021A
4x4 DFN
RXD
1
8
CS/LWAKE
2
7
EP
VREG
9
3
6
TXD
4
5
MCP2022A
PDIP, SOIC, TSSOP
RXD
1
14
CS/LWAKE
2
13
VREG
3
12
TXD
4
11
RESET
5
10
NC
6
NC
7
* Includes Exposed Thermal Pad (EP).
FAULT/TXE
V
BB
L
BUS
V
SS
FAULT/TXE
V
BB
L
BUS
V
SS
FAULT/TXE
V
BB
L
BUS
V
SS
NC
NC
9
NC
8
DS22298A-page 1

Summary of Contents

Page 1

... CS/LWAKE VREG 3 6 TXD 4 5 MCP2021A 4x4 DFN RXD 1 8 CS/LWAKE VREG TXD 4 5 MCP2022A PDIP, SOIC, TSSOP RXD 1 14 CS/LWAKE 2 13 VREG 3 12 TXD 4 11 RESET Includes Exposed Thermal Pad (EP). FAULT/TXE BUS ...

Page 2

... DS22298A-page 2 Thermal Protection Voltage Regulator Wake-Up Logic and Bus Wakeup Power Control Slope Control Dominant Thermal and Short Circuit Protection Package Regulator Output Voltage V REG RESET (MCP2022A ONLY Ratiometric Reference 30 k L BUS Bus V SS Timer RESET Pin 5.0V No 3.3V No 5.0V Yes 3 ...

Page 3

... POWER ON RESET mode from all other OFF 1-3. until the voltage on V regulator turn on voltage V to the READY mode. In POWER-ON-RESET mode, the LIN physical layer and voltage regulator are dis- abled, and RESET output (MCP2022A only) is forced to LOW. MCP2021A/2A 1-1. CS/LWAKE1 & (3) FAULT/TXE1 & ...

Page 4

... If CS/LWAKE low level, then Power down If FAULT/TXE high, then OPERATION mode Section 1.1.6 Remote Wake-up. in BUS falls below BUS WK(LBUS) (a typical duration BDB Operation Comments > Bus Off state Normal Operation mode Lowest Power mode Bus Off state, Lower Power mode 2012 Microchip Technology Inc. ...

Page 5

... The FAULT/TXE pin sampled at a rate faster than every pin has corner- 10 µs. 1.2.9 RESET (MCP2022A ONLY) RESET OUTPUT pin. This pin is open drain with 90 k pull-up to VREG. It indicates the internal volt- age has reached a valid, stable level. As long as the internal voltage is valid (above 0.8 V remain HIGH (‘ ...

Page 6

... MCP2021A/2A TABLE 1-2: PINOUT OVERVIEW PIN Number PIN Name MCP2021A MCP2022A VREG 3 3 VSS 5 11 VBB 7 13 TXD 4 4 RXD 1 1 LBUS 6 12 CS/LWAKE 2 2 FAULT/TXE 8 14 RESET - 5 TABLE 1-3: FAULT/TXE TRUTH TABLE TXD RXD LIN Thermal BUS In Out I/O Override OFF ...

Page 7

... REG Sampling Network V REF 2012 Microchip Technology Inc. With a load current of 70 mA, the minimum input to out- put voltage differential required for the output to remain in regulation is typically 0.5V (1V maximum over the full operating temperature range). Quiescent current is less than 100 µA with a full 70 mA load current when the input to output voltage differential is greater than 3 ...

Page 8

... I I (mA) (mA) REG REG DS22298A-page 8 AT FIGURE 1-5: REG 125 300 300 3. REG REG V 12V BB 100 200 300 I (mA) REG 2012 Microchip Technology Inc. ...

Page 9

... V REG Note 1: Start-up 2012 Microchip Technology Inc. Minimum OFF V REG-NOM (4) (1) (2) (3) < regulator off BB ON > regulator on. ON Minimum V to maintain regulation BB < regulator will turn off ...

Page 10

... The 3 as well. While this protection is optional, it should be considered as good engineering practice value according to TP varies. REG and Equation 1-2 must be Equation 1-2. gives the higher constraint as shown in the following exam 8V. fulfills Equation 1-2 and Equation 1- 2012 Microchip Technology Inc. ...

Page 11

... BAT and resistive, and that the customer knows the resistive and inductive values of the connection. The following formula gives an indication of the minimum value the customer should use for C 2012 Microchip Technology Inc. EQUATION 1-4: C ------------ - C where and R ...

Page 12

... Return LIN bus LIN bus MCP205X MCP202XA Slave 1 Slave 2 µC µC Master Node Only BAT K LIN Bus (4) 43V , with no ESR REG . The R value is BAT TP supply. LIN bus LIN bus MCP2003 Slave n <16 µC 2012 Microchip Technology Inc. ...

Page 13

... Power used for programming the microcontroller can be supplied from the programmer, or from the MCP2021A/2A. The voltage on the pin VREG should not exceed the maximum value Section 2.3 DC REG Specifications . 2012 Microchip Technology Inc. MCP2021A/2A DS22298A-page 13 ...

Page 14

... MCP2021A/2A NOTES: DS22298A-page 14 2012 Microchip Technology Inc. ...

Page 15

... Some terms and names used in this data sheet deviate from those referred to in the LIN specifications. Equivalent values are shown below. LIN 2.1 Name V BAT V SUP V _ BUS LIM V BUSREC V BUSDOM 2012 Microchip Technology Inc. (Note 1)...-0.3 to 40V (Note 4) ... ±15 KV (Note 5)... ±8 KV (Note 5) ... ±4 KV (Note 6) ...±1500V (Note 7)...±200V Term used in the following tables not used ...

Page 16

... V V REG 0.3 -0.3 0.8 V -2.5 0.4 µA -10 µA 2.0 — -0.3 0.8 V 8.0 µA 2012 Microchip Technology Inc. Conditions mA, OUT L recessive BUS V 5.0V REG mA, OUT L recessive BUS V 3.3V REG mA, OUT L recessive BUS V 5.0V REG mA, OUT L recessive ...

Page 17

... V OL RXD ( High Level Output Voltage V OH RXD ( Low Level Output Voltage V OLOD (FAULT/TXE) Low Level Output Voltage V OLRST (RESET) 2012 Microchip Technology Inc. MCP2021A/2A Min. Typ. Max. Units 5.0 µA 0.2V V REG 0.8V V REG — ...

Page 18

... V < 18V, BUS V 12V BB µ GND < V < 18V BUS BUS CNT IL BUS V (L ))/2 IH BUS k (Note 2) pF (Note 2) V Wake up from POWER- DOWN mode (Note LBUS BB is used to WK(LBUS) 2012 Microchip Technology Inc. , ...

Page 19

... PSRR Reject Output Noise Voltage eN Shutdown Voltage V SD Input Voltage to Turn Off V OFF Output Input Voltage to Turn Output Note 1: For design guidance only, not tested. 2012 Microchip Technology Inc µF Min. Typ. Max. 4.85 5.00 5.15 1 — — ...

Page 20

... FIGURE 2-1: ESR CURVES FOR LOAD CAPACITOR SELECTION 10 1 Instable Unstable 0.1 0.01 0.001 0.1 DS22298A-page 20 ESR Curves Unstable Instable Stable only with Tantalum or Electrolytic cap. Stable Tantalum, Electrolytic and Ceramic cap. Instable Unstable 1 10 Load Capacitor [uF] with 1000 100 2012 Microchip Technology Inc. ...

Page 21

... Bus dominant time-out time t TO(LIN) Time to sample FAULT/TXE t FAULT for bus conflict reporting Duty Cycle 1 @20.0 kbit/sec Duty Cycle 2 @20.0 kbit/sec Duty Cycle 3 @10.4 kbit/sec Duty Cycle 4 @10.4 kbit/sec 2012 Microchip Technology Inc. MCP2021A/2A -40°C to 125°C A Min. Typ. Max. Units BB 3.5 22.5 µ ...

Page 22

... JA , and ambient temperature T JMAX Units Test Conditions µs µs (Note 1) µs (Note 2) µs µs (Note 2) µs (Note 2) µs (Note 2) µs Test Conditions C C . The maximum ) this dissipation is JMAX A JA 2012 Microchip Technology Inc. ...

Page 23

... L BUS RXD Internal TXD/RXD Match Match Compare FAULT Sampling Hold FAULT/TXE Output Stable Value FIGURE 2-3: REGULATOR BUS WAKE TIMING DIAGRAM L BUS V REG-NOM V REG 2012 Microchip Technology Inc. 50% t TRANSPDF t RECPDF 50% Match Match t FAULT Hold Stable Value V WK(LBUS BACTIVE BDB MCP2021A/2A ...

Page 24

... 12V 12V 12V 12V 18V 18V 18V 110 125 110 125 110 125 Temperature( C) Temperature( C) 2012 Microchip Technology Inc. ...

Page 25

... Temperature( C) Temperature( C) 2012 Microchip Technology Inc. VS. FIGURE 2-10: 5.2 5 4.8 4.8 4.6 4.6 4.4 4 12V 12V 18V ...

Page 26

... MCP2021A/2A NOTES: DS22298A-page 26 2012 Microchip Technology Inc. ...

Page 27

... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. 2012 Microchip Technology Inc. MCP2021A/2A Example 2021A 500EMD ...

Page 28

... MCP2021A/2A Package Marking Information (Continued) 14-Lead PDIP (300 mil) (MCP2022A) 14-Lead SOIC (.150) (MC2022A) 14-Lead TSSOP (MCP2022A) XXXXXXXX YYWW NNN Legend: XX...X Customer-specific information Y Year code (last digit of calendar year) YY Year code (last 2 digits of calendar year) WW Week code (week of January 1 is week 01) ...

Page 29

... Plastic Dual Flat, No Lead Package (MD) Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2012 Microchip Technology Inc. MCP2021A/2A 4x4x0.9 mm Body [DFN] Microchip Technology Drawing C04-131E Sheet DS22298A-page 29 ...

Page 30

... MCP2021A/2A 8-Lead Plastic Dual Flat, No Lead Package (MD) Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS22298A-page 30 4x4x0.9 mm Body [DFN] Microchip Technology Drawing C04-131E Sheet 2012 Microchip Technology Inc. ...

Page 31

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2012 Microchip Technology Inc. MCP2021A/2A DS22298A-page 31 ...

Page 32

... MCP2021A/2A /HDG 3ODVWLF 'XDO ,Q/LQH 3 ± PLO %RG >3',3@ 1RWH N NOTE 1RWHV DS22298A-page 2012 Microchip Technology Inc. ...

Page 33

... Note: 2012 Microchip Technology Inc. MCP2021A/2A DS22298A-page 33 ...

Page 34

... MCP2021A/2A Note: DS22298A-page 34 2012 Microchip Technology Inc. ...

Page 35

... PP %RG >62,&@ 1RWH 2012 Microchip Technology Inc. MCP2021A/2A DS22298A-page 35 ...

Page 36

... MCP2021A/2A Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS22298A-page 36 2012 Microchip Technology Inc. ...

Page 37

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging 2012 Microchip Technology Inc. MCP2021A/2A DS22298A-page 37 ...

Page 38

... MCP2021A/2A 1RWH DS22298A-page 38 2012 Microchip Technology Inc. ...

Page 39

... PLO %RG >3',3@ 1RWH N NOTE 1RWHV 2012 Microchip Technology Inc MCP2021A/ DS22298A-page 39 ...

Page 40

... MCP2021A/2A Note: DS22298A-page 40 2012 Microchip Technology Inc. ...

Page 41

... Note: 2012 Microchip Technology Inc. MCP2021A/2A DS22298A-page 41 ...

Page 42

... MCP2021A/2A Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS22298A-page 42 2012 Microchip Technology Inc. ...

Page 43

... MCP2021A-500E/SL: 5.0V, 8L-SOIC package d) MCP2021A-500E/P: 5.0V, 8L-PDIP package e) MCP2021AT-330E/SL: Tape and Reel, 3.3V, 8L-SOIC package f) MCP2021AT-500E/SL: Tape and Reel, 5.0V, 8L-SOIC package g) MCP2022A-330E/SL: 3.3V, 14L-SOIC package h) MCP2022A-330E/P: 3.3V, 14L-PDIP package i) MCP2022A-500E/SL: 5.0V, 14L-SOIC package j) MCP2022A-500E/P: 5.0V, 14L-PDIP package k) MCP2022AT-330E/SL: Tape and Reel, 3.3V, 14L-SOIC package l) MCP2022AT-500E/SL: Tape and Reel, 5.0V, 14L-SOIC package DS22298A-page 43 ...

Page 44

... MCP2021A/2A NOTES: DS22298A-page 44 2012 Microchip Technology Inc. ...

Page 45

... APPENDIX A: REVISION HISTORY Revision A (March 2012) Original Release of this Document. 2012 Microchip Technology Inc. MCP2021A/2A DS22298A-page 45 ...

Page 46

... MCP2021A/2A NOTES: DS22298A-page 46 2012 Microchip Technology Inc. ...

Page 47

... Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2012, Microchip Technology Incorporated, Printed in the U ...

Page 48

... Singapore Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan - Hsin Chu Tel: 886-3-5778-366 Fax: 886-3-5770-955 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-330-9305 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 2012 Microchip Technology Inc. 11/29/11 ...

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