ST EVAL-L9177A User manual

July 2017 DocID030859 Rev 1 1/20
1
UM2263
User manual
EVAL-L9177A demo board hardware
Introduction
The EVAL-L9177A is an Evaluation Board designed to evaluate L9177A, a smart power
device designed by STMicroelectronics in advanced BCD technology.
L9177 is able to drive all the relevant loads used in one/two cylinder powertrain applications
(Injectors, Relay, stepper motor, tachometer, etc.), to interface with Variable Reluctance
Sensors and Hall sensors, to monitor diagnostic functionalities and to interact with the main
networks present in powertrain environment (K-Line).
All channels are protected against short circuit and over-temperature condition.
The board can be connected to the SPC563M-DISP, the Discovery+ board developed for
the SPC563M64L.
www.st.com

Contents UM2263
2/20 DocID030859 Rev 1
Contents
1 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Microcontroller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 L9177A pinout and pin description . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Board layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Evaluation board main components and connectors . . . . . . . . . . . . . 12
5 Jumpers & connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.1 Motherboard jumpers & connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.1 Default Jumper setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.2 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.2.1 Start up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Appendix A L9177A evaluation board schematic . . . . . . . . . . . . . . . . . . . . . . . . 18
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

DocID030859 Rev 1 3/20
UM2263 List of tables
3
List of tables
Table 1. L9177A pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 2. Motherboard jumpers and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 3. Configuration jumpers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 4. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

List of figures UM2263
4/20 DocID030859 Rev 1
List of figures
Figure 1. Application block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. L9177A pinout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 4. Board front layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 5. Board back layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 6. Board front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 7. Motherboard main components and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 8. Microcontroller connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 9. Expansion connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 10. L9177A evaluation board schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

DocID030859 Rev 1 5/20
UM2263 Hardware description
18
1 Hardware description
The EVAL-L9177A-SPI board provides maximum flexibility, access to all pins to simplify the
evaluation and debug phase.
1.1 Block diagram
Figure 1. Application block diagram
1.2 Microcontroller
Standard APG connector 4 x 36.
PWM output
Configuration and diagnostic via SPI
Possibility to easily connect the board to other microcontroller boards through a wire
adaptor.
/$ 'HPR
%RDUG
0LFUR
63,
*3,2
0LFURFRQWUROOHU
&RQQHFWRU
3&
3RZHU&RQQHFWRUV
3:0
("1(3*

Block diagram UM2263
6/20 DocID030859 Rev 1
2 Block diagram
Figure 2. Block diagram
*$3*36
63,
,1-
*1'B3B
*1'B3B
/$03
7$&+
287'
287&
*1'B,1-
*1'2+
*1'B,1-
5(/
5(/
5(/
2+
287%
287$
,1-
,1
9%
.(<
,1
95287
95,1
95,1
./B5;
./B7;
,1B5(/
,1B5(/
,/6B7$&+
(1
5(;7
3:0
5(6(7
6&.
&6
62
6,
',5
9%B
,12+
5(6(7
2SHUDWLQJPRGH
6WDQGE\PRGH
9UHJXODWRUP$
*HQHUDWRU
5HIHUHQFH
&XUUHQW
,QWHUIDFH
6HQVRU
5HOXFWDQFH
9DULDEOH
+6VZLWFKP$
9VWE\9UHJP$
P$
9WUDFNLQJ9UHJ
9'' 9''B75. 9''B6% +6B287
67(33(502725'5,9(5
/$03'5,9(5
5(/$<'5,9(5&+$11(/6
26(1625+($7(5
7$&+20(7(5'5,9(5
,1-(&725'5,9(5&+$11(/
6KRUWWR*1'9%
2YHUFXUUHQW
2SHQ/RDG
'LDJQRVLV
6KRUWWR*1'
2YHUFXUUHQW
2SHQ/RDG
'LDJQRVLV
6KRUWWR*1'
2YHUFXUUHQW
2SHQ/RDG
'LDJQRVLV
6KRUWWR*1'
2YHUFXUUHQW
2SHQ/RDG
'LDJQRVLV
6KRUWWR*1'
2YHUFXUUHQW
2SHQ/RDG
'LDJQRVLV
6KRUWWR*1'
2YHUFXUUHQW
2SHQ/RDG
'LDJQRVLV
521RKP
2YHUFXUUHQW!$
521RKP
9&ODPS
$LQUXVK
2YHUFXUUHQW!$
521RKP
9&ODPS
2YHUFXUUHQW!$
521RKP
9&ODPS
2YHUFXUUHQW!$
521RKP
2YHUFXUUHQW!$
521RKP
9&ODPS
2YHUFXUUHQW!$
./B/,1(
./,1(
*1'B$*1'B3

DocID030859 Rev 1 7/20
UM2263 L9177A pinout and pin description
18
3 L9177A pinout and pin description
Figure 3. L9177A pinout
Table 1. L9177A pin descriptions
Pin
Number Pin Name Description Class I/O Type
1 DIR Logic Input to set stepper motor direction Signal I
2 NC Not connected - -
3 VDD_TRK Tracking voltage regulator output PWR O
4 REXT External Resistor for precision current
reference Signal I
5 HS_OUT High Side Switch output PWR O
6 VRIN+ VRS positive differential input Signal I
7 VRIN- VRS negative differential input Signal I
8 VROUT VRS output Signal O
9 O2H O2 sensor Heater output PWR O
10 TACH Tachometer driver output PWR O
11 ILS_TACH Tachometer driver input Signal I












    
          











    

    










*$3*36
',5
1&
9''B75.
5(;7
+6B287
95,1
95,1
95287
2+
7$&+
,/6B7$&
*1'B2+
*1'B2+
,12+
5(6(7
,15(/
3:0
1&
9''
./B81(
./B5;
./B7;
,1-
,1
*1'B1-
*1'B1-
,1
,1-
.(<
&6
6&.
6,
(1
9%B 1&
287$ 287%
1& 1& *1' *1' 1& 1&
287&
1&
287' 9% 9''B6%
,1B5(/
1& 1&
5(/
*1'B3B
1&
5(/
1& 1& 1&
5(/
*1'B3B
1&
/$03 /$03
62

L9177A pinout and pin description UM2263
8/20 DocID030859 Rev 1
12 GND_O2H O2 sensor heater ground PWR GND
13 NC Not connected - -
14 INO2H O2 sensor Heater input Signal I
15 RESET Reset signal to the micro Signal O
16 IN_REL2 Relay 2 parallel control input Signal I
17 IN_REL1 Relay 1 parallel control input Signal I
18 NC Not connected - -
19 NC Not connected - -
20 REL2 Relay 2 driver output PWR O
21 GND_P_1 Power ground relay 1-2 PWR GND
22 NC Not connected - -
23 REL1 Relay 1 driver output PWR O
24 NC Not connected - -
25 NC Not connected - -
26 NC Not connected - -
27 REL3 Relay 3 driver output PWR O
28 GND_P_2 Power ground for lamp PWR GND
29 NC Not connected - -
30 LAMP Lamp driver output PWR O
31 LAMP Lamp driver output PWR O
32 SO SPI data out Signal O
33 Si SPI data in Signal I
34 SCK SPI clock in Signal I
35 CS SPI Chip Select Signal I
36 KEY Key signal Signal I
37 INJ1 Injector1 driver output PWR O
38 IN1 Injector1 driver input command Signal I
39 GND_INJ1 Injector1 ground PWR GND
40 GND_INJ2 Injector2 ground PWR GND
41 IN2 Injector2 driver input command Signal I
42 INJ2 Injector2 driver output PWR O
43 KL_TX K-Line TX digital IN Signal I
44 KL_RX K-Line RX digital OUT Signal O
45 KL_Line K-Line PWR I/O
Table 1. L9177A pin descriptions (continued)
Pin
Number Pin Name Description Class I/O Type

DocID030859 Rev 1 9/20
UM2263 L9177A pinout and pin description
18
46 VDD 5V voltage regulator output PWR O
47 NC Not connected - -
48 PWM Logic input for stepper motor Signal I
49 VDD_SB 5V Standby voltage regulator output PWR O
50 VB Battery line to bridge 2 PWR I
51 OUTD Output bridge 2 PWR O
52 NC Not connected - -
53 OUTC Output bridge 2 PWR O
54 NC Not connected - -
55 NC Not connected - -
56 GND Analog and power ground PWR GND
57 GND Analog and power ground PWR GND
58 NC Not connected - -
59 NC Not connected - -
60 OUTB Output bridge 1 PWR O
61 OUTA Output bridge 1 PWR O
62 NC Not connected - -
63 VB_1 Battery line bridge1 PWR I
64 EN Logic input to enable stepper motor Signal I
Table 1. L9177A pin descriptions (continued)
Pin
Number Pin Name Description Class I/O Type

L9177A pinout and pin description UM2263
10/20 DocID030859 Rev 1
3.1 Board layout
Figure 4. Board front layout
Figure 5. Board back layout