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:
0
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
Number of Functions:
3
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 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
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
A4490EES-T Frequently Asked Questions (FAQs)
Allegro provides a recommended PCB layout in their application note AN296040, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and thermal dissipation.
The maximum current rating for the A4490EES-T depends on the ambient temperature, PCB layout, and thermal management. Allegro provides a current rating calculator tool on their website, which takes into account these factors to provide a safe operating current.
The recommended input capacitor value for the A4490EES-T is 10uF to 22uF, with an X7R or X5R dielectric, and a voltage rating of 25V or higher. This ensures stable operation and minimizes input voltage ripple.
Allegro provides a troubleshooting guide in their application note AN296041, which covers common issues such as incorrect pin connections, inadequate power supply, and thermal shutdown. It also provides guidance on how to use oscilloscopes and other tools to diagnose issues.
Yes, the A4490EES-T is AEC-Q100 qualified, which means it meets the stringent requirements for automotive applications. However, it's essential to ensure that the device is used within its specified operating conditions and that the system design meets the relevant automotive standards.
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A4490EES-T Overview
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