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Schematic and Bill of Materials

25

SLVUBT6A – October 2019 – Revised May 2020

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Copyright © 2019–2020, Texas Instruments Incorporated

Using the TPS8804EVM

Table 2. Bill of Materials (continued)

REF DES

QTY

VALUE

DESCRIPTION

SIZE

PART NUMBER

C17, C21

2

1000 pF Capacitor, ceramic, 1000 pF, 50 V, ±10%, X7R, 0603

0603

C0603X102K5RAC
TU

C20

1

330 pF

Capacitor, ceramic, 330 pF, 50 V, ±10%, X7R, 0603

0603

C0603C331K5RAC
TU

C23

1

100 pF

Capacitor, ceramic, 100 pF, 50 V, ±5%, C0G/NP0,
0603

0603

885012006057

C24, C25

2

10 pF

Capacitor, ceramic, 10 pF, 50 V, ±5%, C0G/NP0,
0603

0603

06035A100JAT2A

D1, D2, D3

3

100 V

Diode, Switching, 100 V, 0.15 A, SOD-123

SOD-123

1N4148W-TP

D4

1

18 V

Diode, Zener, 18 V, 225 mW, SOT-23

SOT-23

BZX84C18LT1G

D6

1

Infrared

LED, Infrared, TH

D5.5 mm

SFH 4556

D7

1

Silicon PIN Photodiode, TH

D5.7×H9 mm

SFH 213

D8

1

Blue

LED, Blue, TH

D3.1 mm

LTL1CHTBK4

H1, H2, H3, H4

4

Machine Screw, Round, #4-40 × 1/4, Nylon, Philips
panhead

Screw

NY PMS 440 0025
PH

H5, H6, H7, H8

4

Standoff, Hex, 0.5"L #4-40 Nylon

Standoff

1902C

J1, J5, J6, J7,
J8, J14

6

Header, 2.54 mm, 3×1, Tin, TH

Header, 2.54
mm, 3×1, TH

22284033

J2, J9, J15,
J16

4

Header, 2.54 mm, 2×1, Tin, TH

Header, 2.54
mm, 2×1, TH

22284023

J4

1

Header (shrouded), 100mil, 5×2, Gold, TH

5×2 Shrouded

header

5103308-1

J17

1

Terminal Block, 5.08 mm, 2×1, TH

Terminal

Block, 5.08

mm, 2×1, TH

039544-3002

LBL1

1

Thermal Transfer Printable Labels, 0.650" W ×
0.200" H - 10,000 per roll

PCB Label

0.650 × 0.200

inch

THT-14-423-10

Q1, Q2

2

65 V

Transistor, NPN, 65 V, 0.1 A, SOT-23

SOT-23

BC846BLT1G

R1

1

0

Resistor, 0, 5%, 0.063 W, 0402

0402

RC0402JR-070RL

R2

1

10.0 k

Ω

Resistor, 10.0 k, .1%, .0625 W, 0402

0402

RT0402BRD0710KL

R3

1

100 k

Ω

Resistor, 100 k, 0.1%, 0.1 W, 0603

0603

RG1608P-104-B-T5

R4

1

10.0

Ω

Resistor, 10.0, 0.5%, 0.1 W, 0603

0603

RT0603DRE0710RL

R6

1

1.30

Ω

Resistor, 1.30, 0.5%, 0.1 W, 0603

0603

RT0603DRE071R3L

R7, R8

2

33 k

Ω

Resistor, 33 k, 5%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW060333K0JN
EA

R9, R10

2

1.0 k

Ω

Resistor, 1.0 k, 5%, 0.063 W, AEC-Q200 Grade 0,
0402

0402

CRCW04021K00JN
ED

R11

1

2.4 M

Ω

Resistor, 2.4 M, 5%, 0.1 W, AEC-Q200 Grade 0,
0603

0603

CRCW06032M40JN
EA

R12, R21

2

470

Ω

Resistor, 470, 5%, 0.063 W, AEC-Q200 Grade 0,
0402

0402

CRCW0402470RJN
ED

R13

1

10.0 k

Ω

Resistor, 10.0 k, 1%, 0.1 W, AEC-Q200 Grade 0,
0603

0603

CRCW06034K70JN
EA

R14, R17

2

1.5 M

Ω

Resistor, 1.5 M, 5%, 0.1 W, AEC-Q200 Grade 0,
0603

0603

CRCW06031M50JN
EA

R16

1

620

Ω

Resistor, 620, 1%, 0.1 W, 0603

0603

RC0603FR-
07620RL

R22, R23

2

10M

Ω

Resistor, 10 M, 5%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW060310M0JN
EA

S1

1

Switch, Slide, SPST 4 poles, SMT

SW, SMT Half

Pitch 4SPST,

5.8×2.7×6.25

mm

218-4LPST

Содержание TPS8804

Страница 1: ...analog blocks and external microcontroller Single buffered analog output AMUX for CO and photo signals Serial interface for configuring amplifiers drivers regulators SLC interface for power line commu...

Страница 2: ...the ON position Table 1 displays the VMCU voltage corresponding with each S1 switch position For proper operation with the USB2ANY adapter set VMCU to 3 3 V with sub switch 4 Table 1 VMCU Power up Vol...

Страница 3: ...4EVM Figure 1 Switch Jumper and Power Connections 2 3 Power Connection Connect the power supply to VCC and PGND Set the power supply to 5 V 100 mA Enable the power supply and measure the voltage on VM...

Страница 4: ...GUI installed Open the TPS880x GUI and verify the USB2ANY adapter is recognized see Figure 2 With the EVM powered connect the USB2ANY adapter to the EVM using the USB2ANY adapter 10 pin ribbon cable...

Страница 5: ...2020 Texas Instruments Incorporated Using the TPS8804EVM Figure 3 Test Command Successful 3 Analog Evaluation Click START EVALUATION and select the feature to evaluate The Analog Front End section gu...

Страница 6: ...elect the feedback resistance and reference voltage in the GUI software The TPS8804EVM default configuration uses the internal resistors and references To use an external feedback resistor solder a re...

Страница 7: ...luation 7 SLVUBT6A October 2019 Revised May 2020 Submit Documentation Feedback Copyright 2019 2020 Texas Instruments Incorporated Using the TPS8804EVM Figure 5 CO Amplifier Settings Figure 6 Clean Air...

Страница 8: ...simple test confirms that the CO sensor is connected to the EVM Remove the shunt connected to J7 and connect a shunt to J15 and J16 Write COTEST_EN 1 and measure the pulse shape on AMUX_BUF using an o...

Страница 9: ...w ti com Analog Evaluation 9 SLVUBT6A October 2019 Revised May 2020 Submit Documentation Feedback Copyright 2019 2020 Texas Instruments Incorporated Using the TPS8804EVM Figure 8 COTEST_EN Register Bi...

Страница 10: ...aluation www ti com 10 SLVUBT6A October 2019 Revised May 2020 Submit Documentation Feedback Copyright 2019 2020 Texas Instruments Incorporated Using the TPS8804EVM Figure 9 CO Connectivity Test withou...

Страница 11: ...todiode when testing the photo AFE Enable the photo amplifier photo gain amplifier and set the AMUX SELECTION to PHOTO GAIN AMPLIFIER Select the photo reference on the EVM with jumper J7 and enable th...

Страница 12: ...opyright 2019 2020 Texas Instruments Incorporated Using the TPS8804EVM Figure 11 Photo Amplifier Settings Configure the power to the LEDs By default LED A and LED B are connected to LEDLDO Use the J1...

Страница 13: ...sufficiently tests the LED driver This setting controls the PWM signal from the USB2ANY adapter to the EVM Configure the LED current for each driver The default EVM CSA resistance is 10 and the defau...

Страница 14: ...EDPIN_EN to control the LED driver using the LEDEN pin Place a box over the EVM if the EVM LEDs and photodiode are used to block ambient light and reflect the LED light into the photodiode Use an osci...

Страница 15: ...nalog Evaluation 15 SLVUBT6A October 2019 Revised May 2020 Submit Documentation Feedback Copyright 2019 2020 Texas Instruments Incorporated Using the TPS8804EVM Figure 14 EVM Photo Measurement Probe C...

Страница 16: ...Analog Evaluation www ti com 16 SLVUBT6A October 2019 Revised May 2020 Submit Documentation Feedback Copyright 2019 2020 Texas Instruments Incorporated Using the TPS8804EVM Figure 15 LED A Signals...

Страница 17: ...www ti com Analog Evaluation 17 SLVUBT6A October 2019 Revised May 2020 Submit Documentation Feedback Copyright 2019 2020 Texas Instruments Incorporated Using the TPS8804EVM Figure 16 LED B Signals...

Страница 18: ...S8804EVM Figure 17 Photo Signal with Photo Chamber 3 3 Register Map Use the register map to evaluate other blocks in the TPS8804 Use the search to find register bits that correspond to a certain block...

Страница 19: ...com Analog Evaluation 19 SLVUBT6A October 2019 Revised May 2020 Submit Documentation Feedback Copyright 2019 2020 Texas Instruments Incorporated Using the TPS8804EVM Figure 18 Register Map Search Fun...

Страница 20: ...www ti com 20 SLVUBT6A October 2019 Revised May 2020 Submit Documentation Feedback Copyright 2019 2020 Texas Instruments Incorporated Using the TPS8804EVM 4 Board Layout Figure 19 TPS8804EVM Top Laye...

Страница 21: ...com Board Layout 21 SLVUBT6A October 2019 Revised May 2020 Submit Documentation Feedback Copyright 2019 2020 Texas Instruments Incorporated Using the TPS8804EVM Figure 20 TPS8804EVM Ground Layer PCB...

Страница 22: ...Layout www ti com 22 SLVUBT6A October 2019 Revised May 2020 Submit Documentation Feedback Copyright 2019 2020 Texas Instruments Incorporated Using the TPS8804EVM Figure 21 TPS8804EVM Power Layer PCB L...

Страница 23: ...com Board Layout 23 SLVUBT6A October 2019 Revised May 2020 Submit Documentation Feedback Copyright 2019 2020 Texas Instruments Incorporated Using the TPS8804EVM Figure 22 TPS8804EVM Bottom Layer PCB...

Страница 24: ...V in worst case conditions Figure 23 TPS8804EVM Schematic 5 2 Bill of Materials Table 2 Bill of Materials REF DES QTY VALUE DESCRIPTION SIZE PART NUMBER PCB1 1 Printed Circuit Board TPS880x C1 C11 2 4...

Страница 25: ...22284023 J4 1 Header shrouded 100mil 5 2 Gold TH 5 2 Shrouded header 5103308 1 J17 1 Terminal Block 5 08 mm 2 1 TH Terminal Block 5 08 mm 2 1 TH 039544 3002 LBL1 1 Thermal Transfer Printable Labels 0...

Страница 26: ...MBER SH J1 SH J2 SH J3 SH J4 SH J7 SH J8 6 1 2 Shunt 100mil Flash Gold Black Closed Top 100mil Shunt SPC02SYAN TP1 TP3 TP4 TP7 TP8 TP10 TP12 TP13 TP14 TP15 TP16 TP17 TP20 TP21 TP22 TP23 TP24 TP25 TP26...

Страница 27: ...dded Figure 7 8 Added recommendation to install a 470 k resistor connecting PREF to VINT in Section 3 2 11 Updated silkscreen labels in Figure 19 21 Added Figure 20 22 Added Figure 21 23 Updated PCB r...

Страница 28: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

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