Texas Instruments UCD3138OL40EVM-032 User manual

Using the UCD3138OL40EVM-032
User's Guide
Literature Number: SLUUA80
January 2013

User's Guide
SLUUA80–January 2013
Using the UCD3138OL40EVM-032
1 Introduction
UCD3138OL40CEVM-032 EVM offers an easy to use test platform for stand-alone evaluation of Texas
Instruments’ UCD3138 highly integrated digital controller that is optimized for isolated power applications.
Featuring a 40-pin socket and comprehensive set of test points, the EVM allows hardware and firmware
engineers to manipulate signals on the different pins of the device individually and study open loop
operation. The EVM also offers the flexibility to realize simple closed loop control configurations (eg. using
RC circuits to filter PWM output signals and regulate a DC voltage in closed loop control). Hardware ports
available to communicate with the device include PMBus, UART and JTAG. The EVM accepts up to 5-V
DC input and an on-board 3.3-V LDO can be used to bias the device. Alternately, using jumpers, the
device can be biased using the PMBus communication pins.
NOTE: In order to download firmware and program the UCD3138 device in UCD3138OL40EVM-
032, a separate EVM from Texas Instruments known as the USB-TO-GPIO Adapter is
required. The USB-TO-GPIO Adapter is NOT supplied with UCD3138OL40EVM-032 and
must be purchased separately. The USB-TO-GPIO Adapter serves as a communication
interface adaptor or a bridge between a host PC and the UCD3138 via a standard type-A to
mini-B USB cable. The USB-TO-GPIO Adapter is listed below in the related products
section.
2 Description
The UCD3138OL40EVM-032 is an EVM board used to facilitate the evaluation on the UCD3138RHA
digital power controller. This EVM provides hardware needed to evaluate UCD3138 40-pin device. All pins
of UCD3138RHA are accessible through header connections, including all GPIO pins, ADC12 pins, front
end pins, DPWM pins, and Fault pins, etc. Particularly, the board has terminal of PMBus, UART DB-9
RS232, and JTAG. All headers can be jumped to configure for a particular interested evaluation need.
2.1 Typical Applications
• UCD3138RHA Function Evaluation
• Firmware Debug
• Hardware Design Assistance
2.2 Features
• Drop-In Socket to Flexible Change the Device
• External 5.0-V Supply or PMBus Bias Supply
• JTAG Connector
• UART Connector, DB-9, RS232
• LED Indicators
• PMBus Connector to PC Computer Connection Through USB-to-GPIO Adapter
• Rich Test Points to Facilitate the Device's Evaluation, System Design and Circuit and Firmware
Debugging
• Board with Jumpers (to make flexible configuration to adapt various evaluation target)
2Using the UCD3138OL40EVM-032 SLUUA80–January 2013
Submit Documentation Feedback
Copyright © 2013, Texas Instruments Incorporated

www.ti.com Electrical Specifications
3 Electrical Specifications
Table 1. UCD3138OL40EVM-032 Specifications
PARAMETER CONDITION MIN TYP MAX UNITS
Connector J1
JTAG Standard JTAG communication connection Standard
Connector J3
PMBus connector Port of connection to USB-to-GPIO, pin definition refer Standard
to TI standard USB-to-GPIO document SLLU093
Connector J4
UART Female DB-9, RS232 Standard
Connector J5
JTAG Standard JTAG communication connection Standard
Connector J38
J38-4 Port to use 3.3 V on board to bias external circuit 3.25 3.30 3.45 VDC
J38-3 External 5.0 V to board 4.90 5.00 5.10
J38-2 External 3.3 V to board 3.27 3.30 3.33
J38-1 Digital ground DGND
Operation Environment
Operating temperature range Natural convection 25 °C
Mechanical Characteristics
Dimensions Width 4.0 inches
Length 6.0
Component height 0.5
Firmware for Testing
Filename PWR032_UART0.x0
PWR032_Test_2.x0
3
SLUUA80–January 2013 Using the UCD3138OL40EVM-032
Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated

AGND
Local Decoupling
Reset
UCD3138 40 Pin Socket
C44
1000pF
C34
1uF
C45
1000pF
C26
0.1uF
C43
1uF
C37
1000pF
C25
0.1uF
C30
0.1uF
R59
20k
C31
0.1uF
S1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
XU1
40QN50S16060
R53 0
R50 0
R51 0
R52 0
R54 0
R55 0
R56 0
R57 0
V33A
[1,2,4,8]
+3_3V
[1,2,4,5,6,9]
BP18
[1,2]
/RESET
[1,2,5]
DGND
DGND
DGND
+3_3V
AGND
AD13
[2,3]
AD06
[2,3]
AD04
[2,3]
AD03
[2,3]
/RESET
[1,2,5]
PWM0/SYNC/TCAP/ADC_EXT/ADC_EXT
[2,4,5]
PMBUS_CLK
[2,5,6]
PMBUS_DATA
[2,5,6]
AD02
[2,3]
AD01
[2,3]
AD00
[2,3]
V33A
[1,2,4,8]
EAP2
[2,3]
EAP1
[2,3]
EAP0
[2,3]
BP18 [1,2]
+3_3V [1,2,4,5,6,9]
FAULT2 [2,5]
TMS [2,5]
TDI/SCI_RX0/FAULT1 [2,4,5]
TDO/SCI_TX0/FAULT0 [2,4,5]
TCK/TCAP/SYNC/PWM0 [2,4,5]
DPWM0A
[2,5,7]
DPWM0B
[2,5,7]
DPWM1A
[2,5,7]
DPWM1B
[2,5,7]
DPWM2A
[2,5,7]
DPWM2B
[2,5,7]
DPWM3A
[2,5,7]
DPWM3B
[2,5,7]
PMBUS_ALERT
[2,5,6]
PMBUS_CTRL
[2,5,6]
DGND
Schematics www.ti.com
4 Schematics
Figure 1. UCD3138OL40EVM-032 Schematics (socket) 1 of 9
4Using the UCD3138OL40EVM-032 SLUUA80–January 2013
Submit Documentation Feedback
Copyright © 2013, Texas Instruments Incorporated

Add socket orientation
Fault test jumpers
Ground strip
1
2
3
J32
1
2
3
J28
1
2
3
J29
R39
10k
R49
10k
TP17
R44
10k
1
2
3
4
5
6
7
8
J40
1
2
3
4
5
J26
1
2
3
4
5
J30
1
2
3
4
5
J36
1
2
3
4
5
J37
1
2
3
4
5
J27
1
2
3
4
5
J31
1
2
3
4
5
J24
1
2
3
4
5
J25
DGND
+3_3V
AGND
[1,2,3,4,8,9]
AD13
[1,3]
AD04
[1,3]
AD03
[1,3]
AD06
[1,3]
DPWM0A
[1,5,7]
DPWM0B
[1,5,7]
DPWM3A
[1,5,7]
DPWM3B
[1,5,7]
DPWM1A
[1,5,7]
DPWM1B
[1,5,7]
DPWM2A
[1,5,7]
DPWM2B
[1,5,7]
PMBUS_ALERT
[1,5,6]
PMBUS_CTRL
[1,5,6]
TDO/SCI_TX0/FAULT0
[1,2,4,5]
TDI/SCI_RX0/FAULT1
[1,2,4,5]
FAULT2
[1,2,5]
AGND
DGND
[1,2,4,5,6,7]
/RESET
[1,5]
PWM0/SYNC/TCAP/ADC_EXT/ADC_EXT
[1,4,5] PMBUS_CLK
[1,5,6]
PMBUS_DATA
[1,5,6]
AGND[1,2,3,4,8,9]
AGND [1,2,3,4,8,9]
BP18 [1]
+3_3V[1,2,4,5,6,9]
DGND[1,2,4,5,6,7] FAULT2 [1,2,5]
TMS [1,5]
TDI/SCI_RX0/FAULT1
[1,2,4,5]
TDO/SCI_TX0/FAULT0
[1,2,4,5]
TCK/TCAP/SYNC/PWM0
[1,4,5]
AD02 [1,3]
AD01 [1,3]
AD00 [1,3]
V33A[1,4,8]
AGND
[1,2,3,4,8,9]
EAP2 [1,3]
AGND [1,2,3,4,8,9]
EAP1[1,3]
AGND [1,2,3,4,8,9]
EAP0 [1,3]
www.ti.com Schematics
Figure 2. UCD3138OL40EVM-032 Schematics (headers) 2 of 9
5
SLUUA80–January 2013 Using the UCD3138OL40EVM-032
Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated

EADC Filters ADC12 Filters
Filter or Address Resistor Filter or Address Resistor
R38
1k
C29
100pF
R37
1k
C28
100pF
R36
1k
C27
100pF
R25
100
C16
1000pF
R24
100
C14
1000pF
R32
100
C23
1000pF
R46
100
C35
1000pF
R48
100
C39
1000pF
R43
100
C33
1000pF
R42
100
C32
1000pF
R28
22.6k
R29
44.2k
C13
1000pF
C15
1000pF
1
2
3J21
1
2
3J20
TP7
AGND
EAP0S
[8]
EAP0 [1,2]
AGND
EAP1S
[8]
EAP1 [1,2]
AGND
EAP2 [1,2]
AGND
AD00S
[8]
AGND
AD01S
[8]
AGND
AD02S
[8]
AD02 [1,2]
AGND
AD03S
[8]
AD03 [1,2]
AGND
AD04S
[8]
AD04 [1,2]
AGND
AD06S
[8] AD06 [1,2]
AGND
AD13S
[8] AD13 [1,2]
AGND
AGND
AD00
[1,2] AD01
[1,2]
EAP2S
Schematics www.ti.com
Figure 3. UCD3138OL64EVM-031 Schematics (filters) 3 of 9
6Using the UCD3138OL40EVM-032 SLUUA80–January 2013
Submit Documentation Feedback
Copyright © 2013, Texas Instruments Incorporated

Ext +3.3V IN
+3.3V OUT
3.3V
GND1
GND
Power & LEDs
Holes for standoffs
Ext +5V IN
1Parts not used
1
J33
TP10
TP16
R58
200
+C42
10uF
+
C41
10uF
+
C36
10uF
C38
1.0uF
1
2
J39
1
2
3
J34
1
2
3
4
J38
TP13 TP4
C40
1.0uF
1IN 2GND
3EN 4
FB
5
OUT
U5
TPS76333DBVT
R19
10K
D1
LTST-C190YKT
R3
10K
D2
LTST-C190CKT
R1
100
R11
100
1
2
3
J5
R18
4.7K
R2
4.7K
1
2
3
J2
Q1 MMBT3904TT1G Q2
SH1
1
M1
TH-SCREW#6_PLATED
1M2
TH-SCREW#6_PLATED
1
M3
TH-SCREW#6_PLATED
1
M4
TH-SCREW#6_PLATED
D5
LTST-C190YKT
R34
10
V33A [1,2,8]
USB_V33
[6]
+3_3V
[1,2,4,5,6,9]
DGND
DGND
DGND
DGND
+3_3V
[1,2,4,5,6,9]
PWM0/SYNC/TCAP/ADC_EXT/ADC_EXT
[1,2,5]
TDO/SCI_TX0/FAULT0
[1,2,5]
TDI/SCI_RX0/FAULT1
[1,2,5]
TCK/TCAP/SYNC/PWM0
[1,2,5]
+3_3V
[1,2,4,5,6,9]
DGND
AGND
+3_3V [1,2,4,5,6,9]
AGND
+5V_EXT
DGND DGND
+3_3V
[1,2,4,5,6,9]
www.ti.com Schematics
Figure 4. UCD3138OL40EVM-032 Schematics (bias and LEDs) 4 of 9
7
SLUUA80–January 2013 Using the UCD3138OL40EVM-032
Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated

JTAG Connector Logic Analyzer Connector
UART PC Connection
1Parts not used
1
R9 10K
R10 10K
R5
10K
R7
10K
R8
10K
R4
10K
R6 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
J1
TP12 TP15
TP14
TP11
12
34
56
78
910
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
35 36
37 38
3940414243
J35
TP1
C8
0.1uF
1
2
3
4
5 6
7
8
9
10
11
J4
TP2
C7
0.1uF
C5
0.1uF
TP3
C10
0.1uF
1EN 2C1+
3V+
4C1-
5C2+
6C2-
7V-
8R1IN 9
R1OUT
10
INVALID
11
T1IN
12
FORCEON
13
T1OUT
14
GND
15
VCC
16
FORCEOFF
U4
SN75C3221DBR
C9
0.1uF
J16 J17
+3_3V
[1,2,4,5,6,9]
TCK/TCAP/SYNC/PWM0
[1,2,4]
TDO/SCI_TX0/FAULT0
[1,2,4,5]
+3_3V
[1,2,4,5,6,9]
TDI/SCI_RX0/FAULT1
[1,2,4,5]
+3_3V
[1,2,4,5,6,9]
TMS
[1,2]
DPWM3B [1,2,7]
DPWM3A [1,2,7]
DPWM2A [1,2,7]
DPWM1B [1,2,7]
DPWM0B[1,2,7]
DPWM0A [1,2,7]
DPWM2B [1,2,7]
DPWM1A [1,2,7]
PMBUS_DATA [1,2,6]
PMBUS_CLK [1,2,6]
/RESET
[1,2]
PWM0/SYNC/TCAP/ADC_EXT/ADC_EXT
[1,2,4]
FAULT2
[1,2] PMBUS_ALERT
[1,2,6]
PMBUS_CTRL [1,2,6]
+3_3V
[1,2,4,5,6,9]
DGND
DGND
DGND
DGND
TDO/SCI_TX0/FAULT0
[1,2,4,5]
TDI/SCI_RX0/FAULT1
[1,2,4,5]
Schematics www.ti.com
Figure 5. UCD3138OL40EVM-032 Schematics (UART and JTAG) 5 of 9
8Using the UCD3138OL40EVM-032 SLUUA80–January 2013
Submit Documentation Feedback
Copyright © 2013, Texas Instruments Incorporated

V+
PMBD PMBCTRL1
PMBCTRL2 PMBCTRL5
PMBCTRL4
PMBC
PMBALERT
PMBCTRL3
PMBus Interface
GND
PMBus Pull Up Jumpers
R13 33 R14 33
R20 33
R12 33
1
2
3
4
5
6
7
8
9
10
J3
D3
AZ23C5V1
D4
AZ23C5V1
R23
1.5K
R22
1.5K
J10
J9
J6
R33
1.5K
J42
PMBUS_ALERT
[1,2,5,6]
PMBUS_CLK
[1,2,5,6]
PMBUS_DATA
[1,2,5,6]
PMBUS_CTRL
[1,2,5]
DGND
DGND
PMBUS_DATA
[1,2,5,6]
PMBUS_CLK
[1,2,5,6]
+3_3V
[1,2,4,5,9]
USB_V33
PMBUS_ALERT
[1,2,5,6]
www.ti.com Schematics
Figure 6. UCD3138OL40EVM-032 Schematics (PMBus) 6 of 9
9
SLUUA80–January 2013 Using the UCD3138OL40EVM-032
Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated

DPWM Filters
1 1 Parts not used
TP8
1
2
3
J22
C19
1000pF
R30
2k
C21
1uF
TP9
1
2
3
J23
C22
1000pF
R31
2k
C20
TP5
1
2
3
J14
C11
1000pF
R26
2k
C17
1000pF
TP6
1
2
3
J15
C18
1000pF
R27
2k
C12
1000pF
DPWM0A
[1,2,5]
DPWM0B
[1,2,5]
FLTR-DPWM0
[8]
DGND
DPWM1A
[1,2,5]
DPWM1B
[1,2,5]
FLTR-DPWM1
[8]
DGND
DPWM2A
[1,2,5]
DPWM2B
[1,2,5]
FLTR-DPWM2
[8]
DGND
DPWM3A
[1,2,5]
DPWM3B
[1,2,5]
FLTR-DPWM3
[8]
DGND
Schematics www.ti.com
Figure 7. UCD3138OL40EVM-032 Schematics (DPWM) 7 of 9
10 Using the UCD3138OL40EVM-032 SLUUA80–January 2013
Submit Documentation Feedback
Copyright © 2013, Texas Instruments Incorporated