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A8651 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Low Input Voltage Adjustable Frequency Dual Synchronous 2 A / 2 A Buck Regulator - Allegro

भाग संख्या A8651
समारोह Low Input Voltage Adjustable Frequency Dual Synchronous 2 A / 2 A Buck Regulator
मैन्युफैक्चरर्स Allegro 
लोगो Allegro लोगो 
पूर्व दर्शन
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<?=A8651?> डेटा पत्रक पीडीएफ

A8651 pdf
A8651
Low Input Voltage, Adjustable Frequency Dual Synchronous
2A / 2A Buck Regulator with Synchronization, 2x EN, and 2x NPOR
Description (continued)
protection at every pin to satisfy the most demanding automotive
applications.
The A8651 device is available in a 20-pin TSSOP package with
exposed thermal pad for enhanced thermal dissipation (suffix LP).
It is lead (Pb) free, with 100% matte tin leadframe plating.
Selection Guide
Part Number
Operating Ambient
Temperature Range
TA, (°C)
A8651KLPTR-T
–40 to 125
*Contact Allegro™ for additional packing options.
Package
20-pin TSSOP with
exposed
thermal pad
Packing*
4000 pieces per
13-in. reel
Leadframe Plating
100% matte tin
Absolute Maximum Ratings1
Characteristic
Symbol
Notes
Rating
Unit
VIN1 and VIN2 to GND
SW1 and SW2 to GND2
All Other Pins
VIN
VSW
Continuous
t < 50 ns
–0.3 to 6.0
–0.3 to VIN + 0.3
–1.0 to VIN +2.0
–0.3 to 6.0
V
V
V
V
Operating Ambient Temperature
TA K temperature range
–40 to 125
ºC
Maximum Junction Temperature
TJ(max)
150 ºC
Storage Temperature
Tstg
–55 to 150
ºC
1Operation at levels beyond the ratings listed in this table may cause permanent damage to the device. The Absolute Maximum ratings
are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the Electrical
Characteristics table is not implied. Exposure to Absolute Maximum-rated conditions for extended periods may affect device reliability.
2SW1 and SW2 have internal clamp diodes to GND and VIN. Applications that forward bias these diodes should take care not to exceed
the A8651 package power dissipation limits.
Thermal Characteristics may require derating at maximum conditions, see application information
Characteristic
Symbol
Test Conditions*
Package Thermal Resistance
RθJA On 4-layer PCB based on JEDEC standard
*Additional thermal information available on the Allegro website.
Value Unit
32 ºC/W
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
2
Free Datasheet http://www.Datasheet4U.com

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