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A8287 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - LNB Supply and Control Voltage Regulator - Allegro

भाग संख्या A8287
समारोह LNB Supply and Control Voltage Regulator
मैन्युफैक्चरर्स Allegro 
लोगो Allegro लोगो 
पूर्व दर्शन
1 Page
		
<?=A8287?> डेटा पत्रक पीडीएफ

A8287 pdf
A8285/A8287
LNB Supply and Control Voltage Regulator
V IN C10
100 nF
Functional Block Diagram
C1 L1 D1 C5
33 µF
33 µH
100 nF
C2 C4
100 nF 100 µF
VREG
C3 220 nF
EXTM
R3 R4 R5
VDD
SDA
SCL
ADD
IRQ
VIN
Internal
Regulator
BOOST
Feedback
OSC In
Boost Converter
LX VCP
Charge
Pump
VPUMP
Overcurrent
BOOST
OSC
Clock
Divider
22 kHz
Tone
Generator
I 2C Interface
Output
Voltage
Select
Fault Monitor
Overcurrent
TSD
Undervoltage
Overcurrent
100 mV
DISABLE
Tracking
Regulator
GM
22 kHz Tone
Detector
R1
15
LNB
D2
L2
33 µH
1.5 µF
C7
220 nF
C6
TCAP
6.8 nF
C8
TOUT
220 R2
10 nF
TDI C9
TDO
R6 VDD
Tone detector and leads TDI and TDO are not provided in 16-pin package (A8285).
ID Characteristics
Suggested Manufacturer
C1
C2, C5,C10
33 F, 25 V, esr < 200 m , Iripple > 350 mA
100 nF, 50 V, X5R or X7R
Nichicon, part number UHC1E330MET
C4
C3,C6
100 F, 35 V, esr < 75 m , Iripple> 800 mA
220 nF, 50 V, X5R or X7R
Nichicon, part number UHC1V101MPT
C7 1.5 F, 50 V, X5R or X7R
C8 6.8 nF, 50 V; Y5V, X5R, or X7R
C9 10 nF (maximum), 50 V; Y5V, X5R, or X7R
R1 15 Ω, 1%, c W
R2 220 Ω, 1%, 2 W
R3-R6
L1
L2
D1
Value determined by VDD, bus capacitance. etc.
33 H, IDC > 1.3 A
33 H, IDC > 0.5 A
1 A, 35 V or 40 V, Schottky diode
TDK, part number TSL0808-330K1R4
TDK, part number TSL0808-330K1R4
Various, part number 1N5819; Sanken, part number AW04
D2 1 A, 100 V, 1N4002
www.allegromicro.com
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
2

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डाउनलोड[ A8287 Datasheet.PDF ]


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