Test Points
2
SNVU560 – August 2017
Copyright © 2017, Texas Instruments Incorporated
LM5150RUMHDEVM EVM User’s Guide
•
Up to 2.2A output current (1.1A continuous, 2.2A peak(2sec))
•
2.2MHz typical switching frequency
Table 1. Electrical Performance Specifications
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
INPUT CHARACTERISTICS
Input voltage
3.2
(6 V to start up)
40
V
Input current
I
LOAD
= 2.2 A
7
A
OUTPUT CHARACTERISTICS
Output regulation target
I
LOAD
= 2.2 A
6.46
6.8
7.14
V
Output DC current
Peak, 2sec
2.2
A
Continuous
1.1
A
SYSTEM CHARACTERISTICS
Switching frequency
2.2
MHz
Full load efficiency
(during switching)
V
SUPPLY
= 3.2 V
81%
V
SUPPLY
= 5 V
86%
2
Test Points
2.1
Test Points
Table 2. Test Point Descriptions
TEST POINT NAME
DESCRIPTION
J1(+), J4(–)
Input voltage supply
J2(+), J3(–)
Load connection
3
Test Equipment
3.1
Power Supply
Power supply should be capable of 40V/14A, current monitoring and remote sensing.
3.2
Electronic Load
Electronic load should be capable of 40V/3A, Constant Current (CC) mode.
3.3
Meters
One current meter is required to measure input current accurately. Maximum current rating of the meter
should be carefully considered. Input current can be as high as 10A at full load current and minimum input
voltage.
3.4
Oscilloscope
Oscilloscope and 10x probe with at least 20MHz bandwidth are recommended.
3.5
Cranking Simulator
Texas Instruments HVAL068A automotive cranking simulator or equivalent equipment.