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A4941 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Three-Phase Sensorless Fan Driver - Allegro Micro Systems

भाग संख्या A4941
समारोह Three-Phase Sensorless Fan Driver
मैन्युफैक्चरर्स Allegro Micro Systems 
लोगो Allegro Micro Systems लोगो 
पूर्व दर्शन
1 Page
		
<?=A4941?> डेटा पत्रक पीडीएफ

A4941 pdf
A4941
Three-Phase Sensorless Fan Driver
Selection Guide
Part Number
A4941GLPTR-T
A4941GLPTR-A-T
Application
Commerical/Industrial
Automotive
Packing
4000 pieces per 13-in. reel
4000 pieces per 13-in. reel
Absolute Maximum Ratings
Characteristic
Supply Voltage
Logic Input Voltage Range
Logic Output Voltage
Output Current
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
Symbol
VBB
VIN
VOUT
IOUT
TA
TJ(max)
Tstg
Notes
PWM, SLEW
FC
FG
Peak (startup and lock rotor)
r m s , duty cycle = 100%
G temperature range
Recommended Operating Conditions
Characteristic
Supply Voltage
Symbol
VBB
Output Current
IOUT
Conditions
Peak (startup and lock rotor)
Run current
Rating
20
–0.3 to 5.5
–0.3 to VBB
VBB
1.25
900
–40 to 105
150
–55 to 150
Unit
V
V
V
V
A
mA
ºC
ºC
ºC
Min.
5
Typ.
<500
Max.
16
1
Unit
V
A
mA
Thermal Characteristics may require derating at maximum conditions
Characteristic
Symbol
Test Conditions*
Package Thermal Resistance
On 4-layer PCB based on JEDEC standard
RθJA On 2-layer PCB with 1 in.2 of copper area each side
*Additional thermal information available on the Allegro website
Value Unit
34 ºC/W
52 ºC/W
Pin-out Diagram
OUTC 1
CP1 2
CP2 3
VCP 4
GND 5
SLEW 6
PWM 7
FG 8
PAD
16 OUTB
15 OUTA
14 SENSE
13 VBB
12 CTAP
11 GND
10 FC
9 TEST
Terminal List Table
Name
Number
Function
CP1 2 Charge pump
CP2 3 Charge pump
CTAP
12 Motor terminal center tap
FC 10 Logic input
FG 8 Speed output signal
GND
5, 11
Ground
OUTA
15 Motor terminal A
OUTB
16 Motor terminal B
OUTC
1 Motor terminal C
PWM
7 Logic input
SENSE
14 Sense resistor connection
SLEW
6 Logic input
TEST
9 Test use only, leave open circuit
VBB
13 Input supply
VCP
4 Charge pump
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
2

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