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Texas Instruments TPL7407L7 User Manual
Texas Instruments TPL7407L7 User Manual

Texas Instruments TPL7407L7 User Manual

Channel relay and inductive load sink driver evm

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TPL7407L7-Channel Relay and Inductive Load Sink Driver
EVM
1
Overview
The TPL7407LEVM is a 7-Channel Relay and Inductive Load Sink Driver evaluation module that
demonstrates the TPL7407LDR integrated circuit from Texas Instruments (TI).
The TPL7407LDR is a high-performance peripheral driver designed to drive loads of many types
including: relays, stepper motors, lamps, and light emitting diodes.
The EVM is configured with seven push buttons that supply input to the TPL7407L driver and seven
relays are driven by the TPL7407Loutputs. A four terminal block can be connected to external power
supplies to provide input and relay power. All of the TPL7407Linput and output pins are accessible for
external connection.
1.1
TPL7407LEVM Features
Seven numbered push buttons control input for device testing.
Seven numbered light emitting diodes indicate relay contact closure.
Three 0.1" spaced post connector ports that allow access to all input pins, output pins, and relay
contacts.
Three open locations, per channel, on the circuit board for user supplied components.
Onboard relay loads that can be disconnected by removing surface mounted 0Ω resistors.
A large device clearance area that allows the use of small profile temperature forcing equipment.
Key Parameters
Input Supply Voltage:
Relay Supply Voltage:
Number of Channels:
G5NB specs
Nominal coil resistance is 2,880Ω
Nominal coil current is 8.3mA
Nominal coil voltage is 24V
Pickup voltage < 75% Nominal
Dropout voltage > 10% Nominal
Maximum coil voltage 180% Nominal
CAUTION: Applying voltages above the limitations given in
your hardware.
Gerber (layout) files are available at www.ti.com.
The EVM includes mating connectors for input, output, and contact pins.
SLRU005 – February 2013
Submit Documentation Feedback
Table 1. TPL7407LEVM Specification
0V – 5.5V
8.5V – 24V
Output Current:
0mA to 500mA
7
Onboard Load:
Seven OMRON G5NB relays
Copyright © 2013, Texas Instruments Incorporated
Table 1
may cause permanent damage to
TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM
User's Guide
SLRU005 – February 2013
1

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Summary of Contents for Texas Instruments TPL7407L7

  • Page 1 Overview The TPL7407LEVM is a 7-Channel Relay and Inductive Load Sink Driver evaluation module that demonstrates the TPL7407LDR integrated circuit from Texas Instruments (TI). The TPL7407LDR is a high-performance peripheral driver designed to drive loads of many types including: relays, stepper motors, lamps, and light emitting diodes.
  • Page 2 1 pc. TPL7407LEVM board using one TPL7407LDR • 3 pc. Eight pin insulation displacement connectors that accept AWG 22 insulated wire. TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM SLRU005 – February 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 3 “Relay Supply” on TB1-4 with a voltage range ideally set to 24V ±10%, but will still operate with a minimum voltage of 8.5V and a maximum voltage of 40V. SLRU005 – February 2013 TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 4 J3-Contact connector can be measured by any high impedance (>100kΩ) measuring device. When the contacts close the J2-Contact pin will be pulled down to ground potential. TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM SLRU005 – February 2013 Submit Documentation Feedback...
  • Page 5 Warning: All tests that supply current should be limited to the data sheet limit of 600mA. Input pin voltage should be limited to 30V and output pin voltage should be limited to 40V. SLRU005 – February 2013 TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 6 Limit 10 mA Measure TB1-4 Current J1-1 J2-1 TPL7407L Sweep Voltage 0 to 1.5V TB1-2 Figure 3. VI(on) and VI(off) Schematic TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM SLRU005 – February 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 7 24V. 24 V TB1-4 Measure Current J1-1 J2-1 TPL7407L Sweep Voltage 0 to 5.5V TB1-2 Figure 4. II(on) Schematic SLRU005 – February 2013 TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 8 J1-1. The return lead of the pico-amp meter must be at board ground potential. 24 V TB1-4 Measure Current OUT J2-1 J1-1 TPL7407L TB1-3 TB1-2 Figure 5. II(off) Schematic TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM SLRU005 – February 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 9 J2-1 TPL7407L 0 to 500 mA Kelvin Connection 1.8V ± 5.0V TB1-2 Measure Voltage TB-3 Figure 6. VOL Schematic SLRU005 – February 2013 TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 10 1.20 1.00 0.80 105C 0.60 -40C 0.40 0.20 0.00 Output Drain Current I (mA) Figure 7. VOL vs IOL TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM SLRU005 – February 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 11 J2-1 TPL7407L SENSE Sweep Voltage 0.4 V 0 V to 5.5 V TB1-2 SENSE TB1-3 Figure 8. IOUT(on) Schematic SLRU005 – February 2013 TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 12 J2-1. A pull up resistor of 50Ω is connected between the output (J2-1) and Relay supply (J2- 8). Set scope trigger for falling edge. Pulse generator is 10% duty cycle 100kHz 3.3V logic level signal. TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM SLRU005 – February 2013 Submit Documentation Feedback Copyright ©...
  • Page 13 The data to calculate RIN, the DC input resistance, was recorded during the II(on) test. The input resistance is simply input voltage divided by input current. SLRU005 – February 2013 TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 14 Measure Voltage TB1-4 J1-1 J2-1 OPEN TPL7407L Sweep Current TB1-2 0 to 600 mA Figure 11. VF Schematic TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM SLRU005 – February 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 15 0.000 0.000 0.200 0.400 0.600 0.800 1.000 1.200 1.400 1.600 VF (V) Figure 12. VF = Diode(V) vs Diode(I) SLRU005 – February 2013 TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 16 TPL7407LEVM Performance Testing Using Lab Equipment www.ti.com Figure 13. Full Schematic TPL7407L7-Channel Relay and Inductive Load Sink Driver EVM SLRU005 – February 2013 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated...
  • Page 17: Evaluation Board/Kit Important Notice

    Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
  • Page 18: Important Notice

    IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.
  • Page 19: Texas Instruments

    Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments TPL7407LEVM...