SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Seated Height-Max:
1.2 mm
Supply Current-Max (Isup):
8.5 mA
Supply Voltage-Max (Vsup):
36 V
Supply Voltage-Min (Vsup):
8 V
Surface Mount:
YES
Technology:
NMOS
Temperature Grade:
OTHER
Terminal Finish:
Matte Tin (Sn)
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
40
Width:
4.4 mm
A3949SLP-T Frequently Asked Questions (FAQs)
Allegro recommends a PCB layout with a solid ground plane, minimal thermal resistance, and a heat sink attached to the exposed pad (EP) for optimal thermal performance.
To ensure reliable operation in high-temperature environments, follow proper PCB design and layout guidelines, use a heat sink, and consider derating the device's output current and voltage according to the datasheet's thermal derating curves.
Allegro recommends using a low-ESR ceramic capacitor with a value of 10 μF to 22 μF, depending on the specific application and input voltage, to ensure stable operation and minimize input ripple.
Yes, the A3949SLP-T is designed to withstand high-vibration environments. However, it's essential to follow proper PCB design and assembly guidelines, and consider using additional mechanical support or vibration dampening measures if necessary.
To troubleshoot output voltage regulation issues, check the input voltage, output load, and PCB layout for any anomalies. Verify that the device is properly configured, and consult the datasheet and application notes for guidance on troubleshooting and debugging techniques.
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A3949SLP-T Overview
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