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Bill of Materials and Schematic

Table 7. Bill of Materials (continued)

Qty

Ref

Description

Size

Part Number

MFR

1

U4

IC, 16 Bit buffer driver, 3-state outputs

48P TSSOP

SN74AVC16244DGG

TI

(DGG)

1

U5

IC, High efficiency boost converter, 250mA,

SOT23-5

TPS61040DBV

TI

1.8- 6V Vin

(DBV)

1

--

PCB, 5.5 In x 3.35 In x 0.062 In

HPA106

Any

3

--

Shunt, 100mil, black

0.100

929950-00

3M

TLC5940 EVM

14

SLVU139 – September 2005

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Содержание TLC5940 EVM

Страница 1: ...wer Connector 4 3 EVM Power Requirements 4 4 J3 Power Connector 5 5 Data Input Mode Jumper Configurations 6 6 Data Input Mode Jumper Configurations 7 7 Bill of Materials 13 The Texas Instruments TLC5940 is a 16 channel constant current LED driver that is capable of driving 120 mA per channel The IC contains an integrated DOT correction circuitry that adjusts the dc current for each output channel ...

Страница 2: ...ource capable of supplying a minimum of 5 5 volts at 2 amps DC power source capable of supplying 3 3 volts at 500 milliamps 1 1 4 Printed Circuit Board Assembly The TLC5940EVM 106 PCB contains three TLC5940 ICs that are configured in series 1 1 5 TUSB3210GENPDK Interface Board The TUSB3210GENPDK is the interface between the PC and the EVM One end of the TUSB3210GENPDK connects to the PC with the s...

Страница 3: ...board appears to windows as a generic human interface device such as a keypad or a mouse so there is no custom driver to install Figure 1 Hardware Setup 1 3 1 J1 Interface Connector J1 provides easy access to all signals necessary to control the TLC5940EVM This connector is useful for interfacing the customer controller board to the EVM Refer to the data sheet for a more detailed description of ea...

Страница 4: ...correction mode 12 XDOWN Error signal Output Error flag LOD and TEF output Note XDOWN signal of all three devices is tied together 13 VPRG_IN VPRG Signal Input This signal is buffered and combined with the 22V_EN signal to set the VPRG voltage on the TLC5940 ICs 14 22V_EN 22V Enable Input This is an active low enable signal that turns on the 22V power supply that is used to program the internal EE...

Страница 5: ...erial data output in cascade mode 28 SIN_BLUE Serial data input blue In Serial data input for the blue LED IC 29 SOUT_G Serial data output green Out Serial data output for the green LED IC 30 SIN_GREEN Serial data input blue In Serial data input for the blue LED IC 31 SOUT_R Serial data output red Out Serial data output for the red LED IC 32 SIN_RED Serial data input red In Serial data input for t...

Страница 6: ...de 1 6 1 Turning on the EVM After the software is installed and the hardware is connected as described earlier in this document the EVM is ready for use The startup procedure for the EVM is as follows 1 Connect all hardware 2 Turn on the 3 3V and 5 5V power supplies 3 Run the LED Frame Designer software If the USB cable is removed and reinserted while the software is running or if power is removed...

Страница 7: ...is designed to switch the VPRG pins on each TLC5940 between these three voltages Table 6 shows the truth table for generating the VPRG voltage Table 6 Data Input Mode Jumper Configurations 22V_EN VPRG_IN DCPRG VPRG Pin on TLC5940 Description 0 1 0 22 V 22V is enabled and applied to VPRG but the data cannot be written to the EEPROM because DCPRG is low 0 1 1 22 V 22V is enabled and applied to VPRG ...

Страница 8: ...www ti com 2 1 Layout Board Layout Figure 2 Assembly Layer TLC5940 EVM 8 SLVU139 September 2005 ...

Страница 9: ...www ti com Board Layout Figure 3 Top Layer Routing SLVU139 September 2005 TLC5940 EVM 9 ...

Страница 10: ...www ti com Board Layout Figure 4 Layer 2 Routing TLC5940 EVM 10 SLVU139 September 2005 ...

Страница 11: ...www ti com Board Layout Figure 5 Layer 3 Routing SLVU139 September 2005 TLC5940 EVM 11 ...

Страница 12: ...www ti com Board Layout Figure 6 Bottom Layer Routing TLC5940 EVM 12 SLVU139 September 2005 ...

Страница 13: ...g 36 pin strip 0 100 x 2X8 PTC36DAAN Sullins 1 J2 Header 2x6 pin 100mil spacing 36 pin strip 0 100 x 2X6 PTC36DAAN Sullins 1 J3 Header low profile straight 2x25 pin 100mil 0 100 x 25 x 2 2550 6002UB 3M spacing 4 J4 J5 J6 Header 2 pin 100mil spacing 36 pin strip 0 100 x 2 PTC36SAAN Sullins J7 3 JP1 JP2 Header 2 pin 100mil spacing 36 pin strip 0 100 x 2 PTC36SAAN Sullins JP3 1 L1 Inductor SMT 10µH 0...

Страница 14: ...ze Part Number MFR 1 U4 IC 16 Bit buffer driver 3 state outputs 48P TSSOP SN74AVC16244DGG TI DGG 1 U5 IC High efficiency boost converter 250mA SOT23 5 TPS61040DBV TI 1 8 6V Vin DBV 1 PCB 5 5 In x 3 35 In x 0 062 In HPA106 Any 3 Shunt 100mil black 0 100 929950 00 3M TLC5940 EVM 14 SLVU139 September 2005 ...

Страница 15: ...www ti com 4 2 Schematic Bill of Materials and Schematic Figure 7 TLC5940EVM 106 Schematic SLVU139 September 2005 TLC5940 EVM 15 ...

Страница 16: ...www ti com Bill of Materials and Schematic Figure 8 TLC5940EVM 106 Schematic Continued TLC5940 EVM 16 SLVU139 September 2005 ...

Страница 17: ...TI field representative prior to connecting the input power Applying loads outside of the specified output range may result in unintended operation and or possible permanent damage to the EVM Please consult the EVM User s Guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation some ci...

Страница 18: ...tute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual property of the third party or a license from TI under the patents or other intellectual property of TI Reproduction of information in TI data books or data sheets is permissible only if reproduction is...

Страница 19: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TLC5940EVM 106 ...

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