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

UM0547 Evaluation board description
Doc ID 14682 Rev 2 5/13
2 Evaluation board description
The PTB801DC is a valve drivers board for ABS system based on STMicroelectronics
devices. The board implements a flexible and open design demonstrating the capability of
the STMicroelectronics for ABS applications. The PTB801DC mounts two L9349 devices,
the control coming from UN24 mother board.
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 L9349
●Full system evaluation: integration, basic and safety functions
2.1.1 L9349 quad intelligent power low-side switch
The L9349 is a monolithic integrated quad low side driver realized in an advanced
BCDmultipower mixed technology. The device is intended to drive valves in automotive
environment.
The L9349 is a quad low-side driver with following functions:
●Quad power low side driver with 2 x 5 A and 2 x 3 A output current capability
●Low RDSON typically 200 mand 300 m@ Tj= 25 °C
●Internal output clamping structures with VFB = 50V for fast inductive load current
recirculation
●Limited output voltage slew rate for low EMI
●Protected µP compatible enable and input
●Wide operating supply voltage range 4.5 V to 32 V
Figure 1. L9349 pin connection (top view)
20 PGND
19 OUT4
D418
IN117
16 EN
GND15
IN214
13 D3
OUT312
PGND11
PGND 1
OUT1 2
3
D1
IN4 4
VS 5
6
NC
IN3 7
D2 8
9
OUT2
PGND 10
00AT0026
Heat sink connected
to pins 1, 10, 11, 20

Evaluation board description UM0547
6/13 Doc ID 14682 Rev 2
●Real time diagnostic functions:
– Output shorted to GND
– Output shorted to VSS
– Open load detection in ON and OFF condition
– Load bypass detection
– Overtemperature detection
●Device protection functions:
– Overload disable
– Selective thermal shutdown
●Signal- and power-ground-loss shutdown
Figure 2. L9349 block diagram
Diagnostic
Control
R
QS Delay
Time Overload
Overtemp
Output Control
Openload
52V
R
IO
Channel 4
Channel 1
Channel 2
Channel 3 OUT3
OUT2
OUT4
VS
OUT1
IN1
D1
EN
IN4
D4
IN2
D2
IN3
D3
GND
00AT0025

UM0547 Evaluation board description
Doc ID 14682 Rev 2 7/13
2.2 Board connections
PTB801DC has many connector to communicate with:
●UN24 mother board
●External valves
The following table describes the pin out of the valve connectors J5 and J6:
On the board, there are three connectors to monitoring the input (INx_1), output (Qx_1), and
status (STx_1) of the drivers.
Figure 3. Valves controlled by first L9349
Figure 4. Valves controlled by second L9349
Table 1. Valve connectors J5 and J6
Name Figure Description
J5 Pin 1
Figure 3.
Output Q1 of first driver
J5 Pin 2 Output Q2 of first driver
J5 Pin 3 Output Q3 of first driver
J5 Pin 4 Output Q4 of first driver
J5 Pin 5 Coil Supply
J6 Pin 1
Figure 4.
Output Q1 of second driver
J6 Pin 2 Output Q2 of second driver
J6 Pin 3 Output Q3 of second driver
J6 Pin 4 Output Q4 of second driver
J6 Pin 5 Coil Supply
Q2_1
Q3_1
Q1_1
Q4_1
1
2
3
4
5
J5
Valv e_1
Coil_Supply
Q2_2
Q3_2
Q4_2
Q1_2
1
2
3
4
5
J6
Valv e_2
Coil_Supply

Evaluation board description UM0547
8/13 Doc ID 14682 Rev 2
The following table describes the pin out of the first signals monitoring connectors J4, J8
and J10:
On the board, there are three connectors to monitoring the input (INx_2), output (Qx_2), and
status (STx_2) of the drivers.
The following table describes the pin out of the second signals monitoring connectors J7, J9
and J11:
Figure 5. First L9349 signals monitoring connectors
Table 2. Valve connectors J4, J8 and J10
Name Figure Description
J4 Pin 1
Figure 5.
Status Q1 of first driver
J4 Pin 2 Status Q2 of first driver
J4 Pin 3 Status Q3 of first driver
J4 Pin 4 Status Q4 of first driver
J8 Pin 1 Input Q1 of first driver
J8 Pin 2 Input Q2 of first driver
J8 Pin 3 Input Q3 of first driver
J8 Pin 4 Input Q4 of first driver
J10 Pin 1 Output Q1 of first driver
J10 Pin 2 Output Q2 of first driver
J10 Pin 3 Output Q3 of first driver
J10 Pin 4 Output Q4 of first driver
Figure 6. Second L9349 signals monitoring connectors
ST1_1
ST4_1
ST2_1
ST3_1
ST1_1
ST3_1
ST2_1
ST4_1
1
2
3
4
J4
STx_1
IN2_1
IN4_1
IN1_1
IN3_1
IN1_1
IN3_1
IN2_1
IN4_1
1
2
3
4
J8
INx_1
Q1_1
Q2_1
Q3_1 Q3_1
Q4_1
Q2_1
Q1_1
Q4_1
1
2
3
4
J10
Qx_1
1
2
3
4
J7
STx_2
ST4_2
ST1_2
ST2_2
ST3_2
ST1_2
ST3_2
ST2_2
ST4_2
1
2
3
4
J9
INx_2
IN2_2
IN4_2
IN3_2
IN1_2
IN1_2
IN3_2
IN4_2
IN2_2
1
2
3
4
J11
Qx_2
Q2_2
Q1_2
Q3_2 Q3_2
Q1_2
Q2_2
Q4_2
Q4_2

UM0547 Evaluation board description
Doc ID 14682 Rev 2 9/13
On the board there are a connector to monitoring the enabled status of the L9349 drivers.
The following table describes the pin out of the enable L9349 drivers:
Table 3. Valve connectors J7, J9 and J11
Name Figure Description
J7 Pin 1
Figure 6.
Status Q1 of second driver
J7 Pin 2 Status Q2 of second driver
J7 Pin 3 Status Q3 of second driver
J7 Pin 4 Status Q4 of second driver
J9 Pin 1 Input Q1 of second driver
J9 Pin 2 Input Q2 of second driver
J9 Pin 3 Input Q3 of second driver
J9 Pin 4 Input Q4 of second driver
J11 Pin 1 Output Q1 of second driver
J11 Pin 2 Output Q2 of second driver
J11 Pin 3 Output Q3 of second driver
J11 Pin 4 Output Q4 of second driver
Figure 7. Enabled status connectors
Table 4. Valve connectors J3
Name Figure Description
J3 Pin 1
Figure 7.
Enable first L9349 valve driver
J3 Pin 2 Enable second L9349 valve driver
ENA_1 ENA_1 1
2
J3
ENA
ENA_2 ENA_2

Before you start UM0547
10/13 Doc ID 14682 Rev 2
3 Before you start
This section describes operations needed before powering up the board.
Before powering up the mother board, could connect:
●Daughter board 2 x L9349
●Wheel Speed Sensor board
●µC mini module (ST10/SPC family)
3.1 How to exercise diagnostic functionality
The PTB801DC has many diagnostic features. Please see the L9349 datasheet for detail.