ST PTB801DC User Manual

September 2013 Doc ID 14682 Rev 2 1/13

UM0547

User manual

PTB801DC

evaluation board for ABS valve drivers system

1 Overview

This document concern the main features of PTB801DC valve drivers for ABS board with
2 x L9349 devices.

1.1 Introduction

The PTB801DC is a complete demonstrator of an ABS system based on
STMicroelectronics devices. The board implements a flexible and open design
demonstrating the capability of the STMicroelectronics 16/32 bit microcontrollers and
devices for ABS applications. The PTB801DC mounts two L9349 devices and accept
external signal coming from PTB801 MB.

1.2 Main components

■ L9349 valve drivers

■ Connector for valves with supply

■ Connector for I/O, enables signals

■ Standardized CPU board connector (PTB801 MB) providing access to off board I/O,

PWM, SPI and power supply

www.st.com

Contents UM0547

2/13 Doc ID 14682 Rev 2

Contents

1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2 Evaluation board description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1.1 L9349 quad intelligent power low-side switch . . . . . . . . . . . . . . . . . . . . . 5

2.2 Board connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3 Before you start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1 How to exercise diagnostic functionality . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4 Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1 PTB801DC overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

UM0547 List of tables

Doc ID 14682 Rev 2 3/13

List of tables

Table 1. Valve connectors J5 and J6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Table 2. Valve connectors J4, J8 and J10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Table 3. Valve connectors J7, J9 and J11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 4. Valve connectors J3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Table 5. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

List of figures UM0547

4/13 Doc ID 14682 Rev 2

List of figures

Figure 1. L9349 pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 2. L9349 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 3. Valves controlled by first L9349 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 4. Valves controlled by second L9349 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 5. First L9349 signals monitoring connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 6. Second L9349 signals monitoring connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 7. Enabled status connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 8. Layout 2 x L9349 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11