Texas Instruments Evaluation Board for the LM5050-2 LM5050MK-2EVAL/NOPB LM5050MK-2EVAL/NOPB 数据表
产品代码
LM5050MK-2EVAL/NOPB
User's Guide
SNVA435A – November 2010 – Revised May 2013
AN-2051 LM5050-2EVAL Evaluation Board
1
Introduction
The LM5050-2 evaluation board is designed to demonstrate the capabilities of the LM5050-2 OR-ing
Diode Controller. It is intended for evaluation of the functions of the LM5050-2. One high side N-channel
power MOSFET is used. The LM5050-2 evaluation board schematic is shown in
Diode Controller. It is intended for evaluation of the functions of the LM5050-2. One high side N-channel
power MOSFET is used. The LM5050-2 evaluation board schematic is shown in
. The evaluation
board is designed to highlight applications with a small solution size. For more information about the
LM5050-2 functional and electrical characteristics, see the LM5050-2 High Side OR-ing FET Controller
LM5050-2 functional and electrical characteristics, see the LM5050-2 High Side OR-ing FET Controller
) data sheet.
2
Operating Range
•
Minimum Input Voltage, 6V
•
Maximum Input Voltage, 50V
•
Output Current Range: 0A to 15A
•
Ambient Temperature Range 0°C to 50°C
•
Board Size 1.50 inches x 2.25 inches
The load current capability is limited at 15A by the ratings of the terminals and the PCB copper area and
weight. The PCB layout has not been tested for currents above 15A, so this should only be done with
some degree of caution.
weight. The PCB layout has not been tested for currents above 15A, so this should only be done with
some degree of caution.
The maximum input voltage is limited by the breakdown voltage rating of both D1 and D2.
Typical evaluation board performance and characteristics curves are shown in
through
The PCB layout is shown in
and
. Test points are provided for optional control and signal
monitoring.
3
Evaluation Board Start-Up
Before applying power to the LM5050-2 evaluation board, all external connections should be verified. The
external power supply must be turned off and connected with proper polarity to the VIN, VOUT, and GND
terminals. Under basic evaluation conditions the nPGD, V
external power supply must be turned off and connected with proper polarity to the VIN, VOUT, and GND
terminals. Under basic evaluation conditions the nPGD, V
LOGIC
, and Off test points are left open.
The evaluation board will be in the normal operating mode when power is applied. The Off terminal is
used only when there is a desire to disable normal operation and invoke the MOSFET test comparator.
used only when there is a desire to disable normal operation and invoke the MOSFET test comparator.
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1
SNVA435A – November 2010 – Revised May 2013
AN-2051 LM5050-2EVAL Evaluation Board
Copyright © 2010–2013, Texas Instruments Incorporated