Kinetic Technologies KTS1640 Load Switch with OVP and Reverse Polarity Protection User Manual

EVAL Kit Manual
KTS1640

KTS1640 Load Switch with OVP and Reverse Polarity Protection

Load Switch with OVP and Reverse Polarity Protection

Brief Description
The KTS1640 Evaluation (EVAL) Kit is used to demonstrate and evaluate the KTS1640 functionality, performance, and PCB layout. The kit includes a fully assembled and tested PCB with the KTS1640 IC installed, two pairs of high- current XT30-to-Banana power cables, and a printed copy of the Quick Start Guide (also contained within this document).

Ordering Information

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EVAL Kit Physical Contents

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User-Supplied Equipment

Required Equipment

1. Bench Power Supply for VIN – 14V/30V and 0.5A/6A, as needed for the intended application. For testing over-voltage protection and withstand voltage, a 30V or 40V adjustable bench power supply is preferred.
2. Digital Multimeter – one or more, used to measure input/output voltages and currents.

Optional Equipment

1. Bench Power Supply for VIO – 1.5V to 5V, low current. Needed for shutdown mode (EN̅̅̅̅ = VIO = High) and fault monitoring (FLAG ̅̅̅̅̅̅ pull-up voltage).
2. Oscilloscope – for dynamic testing of voltages (and currents with a current probe, if available).
3. Load – either an eLoad, power resistors, or an actual system load.
4. Additional Digital Multimeters

Recommended Operating Conditions

V
VIO| VIO Operating Voltage| 1.5 to 5.5| V
IOUT| Output Load Current| 0 to 6| A
IBDET| BDET Output Current| 0 to 100| mA

Jumper Descriptions

VIO (High):  Shutdown Mode – switch disabled
GND (Low):  Enable Mode – normal switch operation| GND

Quick Start Procedures

1. Set Jumpers to default: EN̅̅̅̅ = GND
2. Connect one pair of XT30-to-Banana power cables to the XT30 connector at VIN and GND (left edge of EVAL Kit).
3. Before connecting the EVAL Kit to the VIN bench supply, turn on the supply and adjust the voltage as close to 0V as possible. Then turn off the supply. While off, connect the banana ends of the XT30-to-Banana power cables to the VIN bench supply.
4. Turn on the VIN bench supply and very slowly ramp its voltage to an appropriate voltage, such as 14V. While ramping VIN slowly, use the bench supply’s output current indication (or a digital multimeter) to monitor the VIN current. If the current becomes high, reduce the VIN voltage quickly to prevent damage. Then inspect the setup for any wiring errors.
5. With valid VIN voltage, use a digital multimeter to check the output voltage between the KVOUT and GND terminals on the EVAL Kit. It should be nearly the same as the input voltage.
6. Use a digital multimeter to check the no-load supply current at VIN. Consult the KTS1640 datasheet for the expected current range at the VIN voltage condition in use. For conditions of VIN = 14V, EN̅̅̅̅ = GND, and no-load, it should be close to 145μA.

Typical Test Setup Diagram
As an example, use the following test setup to measure items 5 and 6 in the Quick Start Procedures.

Electrical Schematic

Bill of Materials (BOM)

Quantity| Designator| Description| value| Package| Manufacturer| Manufacturer Part
Number| Digikey Part Number| Mouser Part Number
---|---|---|---|---|---|---|---|---
2| Cl, C3| CAP 1UF 50V X7R 1210| luF| 1210| KEMET| C1210C105K5RAC7800| 399-
C1210C105K5RAC780
OCT-ND| N/A
2| C2, C4| CAP 4.7UF 50V X7R 1812| 4.7uF| 1812| TDK| R1 H475KTOY CGA8M3X7ON| 445-7906-1-ND| N/A
1| C5| CAP 0.1UF 50V X7R 0805| 100nF| 805| Yageo| CC0805KRX7R9BB104| 311-1140-1-ND| 603-
CC805KRX7R9BB104
2| CN1, CN2| 30A Right Angle Through Hole Power Connectors| | | AMASS| XT3OPW-M| |
1| Dl| TVS DIODE 30V 48.4V SMA| | DO-214AC| Littelfuse Inc.| SMAJ30A| SMABOALFCT-ND| 576-SMAJ30A
1| 2| TVS DIODE 24VWM 38.9VC| | DO-214AC| Littelfuse Inc.| SMAJ24A| SMAJ24ALFCT-ND| 576-SMAJ24A
1| P1| 3 Pin Header| | Through Hole| Sullins
Connector
Solutions| PREC003SAAN-RC| S1012EC-03-ND|
1| R1| RES 47K 1% 1/10W 0603| 47K| 603| Yageo| RC0603FR-0747KL| 311-47.0KHRCT- ND| 603-RC0603FR-
0747KL
4| TP1, TP2,
TP3, TP4| TERM TURRET SINGLE L=5.56MM TIN| | 1POS| Keystone| 1502-2| 36-1502-2-ND| 534-1502-2
2| TP5, TP7| PC TEST POINT MULTIPURPOSE RED| | Through Hole| Keystone| 5010| 36-5010-ND| 534-5010
2| TP6, TP8| PC TEST POINT MULTIPURPOSE BLACK| | Through Hole| Keystone| 5011| 36-5011-ND| 534-5011
2| TP9, TP12| PC TEST POINT MULTIPURPOSE YELLOW| | Through Hole| Keystone| 5014| 36-5014-ND| 534-5014
1| TP10| PC TEST POINT MULTIPURPOSE RED| | Through Hole| Keystone| 5010| 36-5010-ND| 534-5010
1| TP11| PC TEST POINT MULTIPURPOSE BLACK| | Through Hole| Keystone| 5011| 36-5011-ND| 534-5011
1| US| Load Switch with OVP and Reverse Polarity Protection| | TDFN| Kinetic
Technologies| KTS1640EDV-TR| | 389-KTS1640EDV-TR

Printed Circuit Board (PCB)

Additional Test Procedures

1. Logic Pins Testing:
   a. Before connecting the EVAL Kit to the VIO bench supply, turn on the supply and adjust the voltage as close to 0V as possible. Then turn off the supply. While off, connect the VIO bench supply to VIO and GND terminals on the EVAL Kit (with user-supplied banana-to-clip leads).
   b. Turn on the VIO bench supply and very slowly ramp its voltage to an appropriate voltage, such as 1.8, 3.3, or 5V. While ramping VIO slowly, use the bench supply’s output current indication (or a digital multimeter) to monitor the VIO current. If the current becomes high, reduce the VIO voltage quickly to prevent damage. Then inspect the setup for any wiring errors.
   c. With valid VIO at 3V and VIN voltage at 14V, check the EN̅̅̅̅ and FLAG ̅̅̅̅̅̅ functionality.
   d. Check the shutdown supply current at VIN with EN̅̅̅̅ = VIO. The supply current should be a few µA only. FLAG ̅̅̅̅̅̅ fault pin voltage should be close to VIO voltage.
   e. With EN̅̅̅̅ = GND, check the FLAG ̅̅̅̅̅̅ fault pulls low to GND when VIN < 5.3V (UVLO) and when VIN > 27.8V (OVLO).

2. Testing with Load:
   a. Use the second XT30-to-Banana power cable pair to apply loads from VOUT to GND.
   b. Under heavy-load conditions, use caution. The KTS1640 IC may become hot; avoid skin contact.
   c. Use multimeters and an oscilloscope to make DC and transient measurements as desired.

Troubleshooting

FLAG ̅̅̅̅̅̅ does not go low during
faults.| VIO supply is off or not connected.| Connect and enable a VIO pull-up supply. FLAG ̅̅̅̅̅̅ has an Absolute Maximum Rating of 7V.
EN̅̅̅ = VIO does not disable the switch.| VIO supply is off or not connected.| Connect and enable a VIO pull-up supply.  EN̅̅̅ has an Absolute Maximum Rating of 7V

Important Notices

Legal notice
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Kinetic Technologies assumes no responsibility or liability for information contained in this document. Kinetic Technologies reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or services without notice. The information contained herein is believed to be accurate and reliable at the time of printing.
Reference design policy
This document is provided as a design reference and Kinetic Technologies assumes no responsibility or liability for the information contained in this document. Kinetic Technologies reserves the right to make corrections, modifications, enhancements, improvements, and other changes to this reference design documentation without notice.
Reference designs are created using Kinetic Technologies’ published specifications as well as the published specifications of other device manufacturers. This information may not be current at the time the reference design is built. Kinetic Technologies and/or its licensors do not warrant the accuracy or completeness of the specifications or any information contained therein.
Kinetic Technologies does not warrant that the designs are production worthy. Customer should completely validate and test the design implementation to confirm the system functionality for the end use application.
Kinetic Technologies provides its customers with limited product warranties, according to the standard Kinetic Technologies terms and conditions.
For the most current product information visit us at www.kinet- ic.com
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LIFE SUPPORT: KINETIC TECHNOLOGIES’ PRODUCTS ARE NOT DESIGNED, INTENDED, OR AUTHORIZED FOR USE AS COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS. NO WARRANTY, EXPRESS OR IMPLIED, IS MADE FOR THIS USE. AUTHORIZATION FOR SUCH USE SHALL NOT BE GIVEN BY KINETIC TECHNOLOGIES, AND THE PRODUCTS SHALL NOT BE USED IN SUCH DEVICES OR SYSTEMS, EXCEPT UPON THE WRITTEN APPROVAL OF THE PRESIDENT OF KINETIC TECHNOLOGIES FOLLOWING A DETERMINATION BY KINETIC TECHNOLOGIES THAT SUCH USE IS FEASIBLE. SUCH APPROVAL MAY BE WITHHELD FOR ANY OR NO REASON.
“Life support devices or systems” are devices or systems which (1) are intended for surgical implant into the human body, (2) support or sustain human life, or (3) monitor critical bodily functions including, but not limited to, cardiac, respirator, and neurological functions, and whose failure to perform can be reasonably expected to result in a significant bodily injury to the user. A “critical component” is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
SUBSTANCE COMPLIANCE
Kinetic Technologies IC products are compliant with RoHS, formally known as Directive 2002/95/EC of the European Parliament and of the Council of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment. However, this evaluation kit does not fall within the scope of the EU directives regarding electromagnetic compatibility, restricted substances (RoHS), recycling (WEEE), FCC, CE or UL, and may not meet the requirements of these or related directives. To the best of our knowledge the information is true and correct as of the date of the original publication of the information. Kinetic Technologies bears no responsibility to update such statement.

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Documents / Resources

| Kinetic Technologies KTS1640 Load Switch with OVP and Reverse Polarity Protection [pdf] User Manual
KTS1640 Load Switch with OVP and Reverse Polarity Protection, KTS1640, Load Switch with OVP and Reverse Polarity Protection, Reverse Polarity Protection, Polarity Protection
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References

• Kinetic Technologies - Analog & Mixed-Signal Semiconductors

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