1.20 MM HEIGHT, 0.65 MM PITCH, ROHS COMPLIANT, MO-153AC,TSSOP-20
Pin Count:
20
Manufacturer:
Allegro MicroSystems LLC
YTEOL:
3
Analog IC - Other Type:
ANALOG CIRCUIT
JESD-30 Code:
R-PDSO-G20
JESD-609 Code:
e3
Length:
6.5 mm
Moisture Sensitivity Level:
2
Number of Functions:
1
Number of Terminals:
20
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-20 °C
Package Body Material:
PLASTIC/EPOXY
Package Code:
TSSOP
Package Equivalence Code:
TSSOP20,.25
Package Shape:
RECTANGULAR
Package Style:
SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Seated Height-Max:
1.2 mm
Supply Voltage-Max (Vsup):
5.5 V
Supply Voltage-Min (Vsup):
2.3 V
Supply Voltage-Nom (Vsup):
3 V
Surface Mount:
YES
Technology:
BICMOS
Temperature Grade:
OTHER
Terminal Finish:
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
A5303SLETR-T Frequently Asked Questions (FAQs)
A good PCB layout for the A5303SLETR-T involves keeping the sense lines (VS, VM, and VG) as short as possible, using a ground plane, and minimizing the distance between the IC and the sense resistors. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
The choice of sense resistors depends on the current range and the desired accuracy. A good starting point is to use resistors with a value between 0.01 ohms and 0.1 ohms. The datasheet provides a formula to calculate the sense resistor value based on the desired current range and the IC's internal resistance.
The A5303SLETR-T has an operating temperature range of -40°C to 150°C. However, the device's accuracy and reliability may degrade at extreme temperatures. It's recommended to operate the device within a temperature range of -20°C to 125°C for optimal performance.
To minimize EMI, use a shielded cable for the sense lines, keep the sense lines away from noise sources, and use a common-mode choke or ferrite bead on the sense lines. Additionally, ensure that the PCB layout is designed to minimize radiation and susceptibility to EMI.
The recommended power-up sequence is to apply the power supply voltage (VCC) first, followed by the input voltage (VIN). This ensures that the internal voltage regulator is powered up before the input voltage is applied.
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A5303SLETR-T Overview
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