Datasheet

MCP2021/2/1P/2P

1.5 Typical Applications

FIGURE 1-6: Typical MCP2021/MCP2021P Application.

LIN Bus

27V

(4)

VBB

LBUS

VREG

TXD

RXD

VDD

TXD

RXD

+12

CS/LWAKE

I/O

FAULT/

TXEI/O

43V

(5)

1kΩ

+12

Master Node Only

+12

220 kΩ

WAKE-UP

Note 1: See Figure 2-3 for correct capacity and ESR for stable operation..

2: C

F is the filter capacitor for the external voltage supply.

3: This diode is only needed if CS/LWAKE is connected to a 12V supply.

4: Transient suppressor diode. Vclamp L = 43V.

5: These components are required for additional load dump protection above 43V.

(3)

RTP

(5)

100 pF