4 X 4 MM, 0.75 MM HEIGHT, LEAD FREE, MO-220WGGD, QFN-20
Pin Count:
20
ECCN Code:
EAR99
HTS Code:
8542.39.00.60
Manufacturer:
Allegro MicroSystems LLC
YTEOL:
8
Analog IC - Other Type:
SWITCHING REGULATOR
Control Mode:
CURRENT-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
34 V
Input Voltage-Min:
4.5 V
Input Voltage-Nom:
6 V
JESD-30 Code:
S-XQCC-N20
JESD-609 Code:
e3
Length:
4 mm
Moisture Sensitivity Level:
2
Number of Functions:
1
Number of Terminals:
20
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-40 °C
Output Current-Max:
2 A
Package Body Material:
UNSPECIFIED
Package Code:
HVQCCN
Package Equivalence Code:
LCC20,.16SQ,20
Package Shape:
SQUARE
Package Style:
CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Seated Height-Max:
0.8 mm
Surface Mount:
YES
Switcher Configuration:
BUCK
Switching Frequency-Max:
630 kHz
Technology:
CMOS
Temperature Grade:
INDUSTRIAL
Terminal Finish:
Matte Tin (Sn)
Terminal Form:
NO LEAD
Terminal Pitch:
0.5 mm
Terminal Position:
QUAD
Time@Peak Reflow Temperature-Max (s):
40
Width:
4 mm
A4490EESTR-T Frequently Asked Questions (FAQs)
A good thermal design should be used to minimize thermal resistance. Allegro recommends a 2-layer or 4-layer PCB with a solid ground plane on the bottom layer, and a thermal relief pattern on the top layer to connect the device to the ground plane.
To ensure reliable operation in high-temperature environments, it is essential to follow proper thermal design guidelines, use a heat sink if necessary, and ensure that the device is operated within its specified temperature range.
The recommended soldering conditions for the A4490EESTR-T are: peak temperature of 260°C, time above 217°C of 30 seconds, and a total process time of 60 seconds.
To troubleshoot issues with the device's output current, check the input voltage, output load, and PCB layout for any signs of overheating or electrical noise. Also, verify that the device is properly configured and that the output current is within the specified range.
To prevent ESD damage, Allegro recommends using ESD protection devices, such as TVS diodes, on the input and output pins of the A4490EESTR-T. Additionally, handle the device by the body or use an ESD wrist strap to prevent static discharge.
Trust Checks
This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
A4490EESTR-T Overview
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