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A8904 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER - Allegro MicroSystems

भाग संख्या A8904
समारोह 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER
मैन्युफैक्चरर्स Allegro MicroSystems 
लोगो Allegro MicroSystems लोगो 
पूर्व दर्शन
1 Page
		
<?=A8904?> डेटा पत्रक पीडीएफ

A8904 pdf
A8904
3-Phase Brushless DC Motor Controller/Driver
with Back EMF Sensing
Selection Guide
Part Number
A8904SLBTR-T
A8904SLPTR-T
Package
24-pin SOIC
28-pin TSSOP
Packing
450 per reel
4000 per reel
Absolute Maximum Ratings
Characteristic
Load Supply Voltage
Logic Supply Voltage
Logic Input Voltage Range
Output Current
Peak Output Current (Brake)
IOUT(BRK) Period
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
Symbol
VBB
VDD
VIN
IOUT
IOUT(BRK)
tfIOUT(BRK)
TA
TJ(max)
Tstg
Notes
Continuous
tw < 30 ns
Output current rating may be restricted to a val-
ue determined by system concerns and factors.
These include: system duty cycle and timing,
ambient temperature, and use of any heatsink-
ing and/or forced cooling. For reliable operation,
the specied maximum junction temperature
should not be exceeded.
Fall of IOUT(BRK) from ±3.0 A to ±1.4 A
Peak output current is a transient condition that
occurs during braking when the motor acts as a
generator. The 3 A level is based on the maxi-
mum peak of a sine wave that is damped. The
maximum period between the initial brake being
applied and the current through the drivers fall-
ing to 1.4 A should not exceed 800 ms. See the
Braking section for more information.
Range S
Fault conditions that produce excessive junc-
tion temperature will activate device thermal
shutdown circuitry. These conditions can be
tolerated, but should be avoided.
Rating
15
7
–0.3 to VDD + 0.3
–1.0 to VDD + 1.0
±1.4
±3.0
800
–20 to 85
150
–55 to 150
Units
V
V
V
V
A
A
A
ºC
ºC
ºC
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
2

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