UM0546
User manual
PTB801DB
Evaluation board for ABS valve drivers system
1
Description
This document concern the main features of PTB801DB valve drivers for ABS board with
2 x L9347 and L9352B devices.
1.1
Introduction
The PTB801DBis a complete demonstrator of an ABS and ESC 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 PTB801DB mounts two L9347 and L9352B devices and
accept external signal coming from PTB801 MB.
1.2
Main components
■
■
■
■
■
L9347 valve drivers
L9352B valve drivers
Connector for valves
Connector for V
BATT
power supply
Standardized CPU board connector providing access to off board I/O, PWM, SPI and
power supply
September 2013
Doc ID 14680 Rev 2
1/18
www.st.com
Contents
UM0546
Contents
1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1
1.2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2
Evaluation board description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1.1
2.1.2
L9347 quad intelligent power low-side switch . . . . . . . . . . . . . . . . . . . . . 5
L9352B quad low-side switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2
Board connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2.1
2.2.2
2.2.3
2.2.4
L9347 first valve drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
L9347 second valve drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
L9352B valve drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Oscillator block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3
Before you start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1
How to exercise diagnostic functionality . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4
Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2/18
Doc ID 14680 Rev 2
UM0546
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Valve connectors J6, J7 and J8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Valve connectors J11, J12 and J13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Valve connectors J22, J23 and J24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Valve connectors J17, J18 and J19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Oscillator connectors J20, J21 and J22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Doc ID 14680 Rev 2
3/18
List of figures
UM0546
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
L9347 pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
L9347 block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
L9352B pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
L9352B block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 valves controlled by first L9347 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 valves controlled by second L9347 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 valves controlled by L9352B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
First L9347 signals monitoring connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Second L9347 signals monitoring connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
L9352B signals monitoring connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Oscillator and clock selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Layout of 2 x L9347 and L9352B devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4/18
Doc ID 14680 Rev 2
UM0546
Evaluation board description
2
Evaluation board description
The PTB801DB is a valve drivers board for ABS and ESC system based on
STMicroelectronics devices. The board implements a flexible and open design
demonstrating the capability of the STMicroelectronics for ABS and ESC applications. The
PTB801DB mounts two L9347 and L9352B devices, the control caming from PTB801 MB.
The board has opened connectivity to external valves.
2.1
Features
General features of this board are:
●
●
Full evaluation and development system based on the system basis chip L9347 and
L9352B
Full system evaluation: integration, basic and safety functionalities
2.1.1
L9347 quad intelligent power low-side switch
The L9347 is an integrated quad low-side power switch to drive inductive loads like valves
used in ABS systems. Two of the four channels are current regulators with current range
from 250 mA to 2.25 A and an accuracy of 10 %. All channels are protected against fail
functions. They are monitored by a status output.
.
Figure 1.
L9347 pin connection (top view)
GND
PGND3
PGND3
Q3
Q3
D3
D3
Q1
Q1
Q2
Q2
D4
D4
Q4
Q4
PGND4
PGND4
N.C.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
99AT0060
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
CLK
ST3
IN1
IN3
ST1
PGND1
PGND1
VS
PGND2
PGND2
TEST
EN
ST2
IN4
IN2
ST4
VDD
VCC
Doc ID 14680 Rev 2
5/18
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