Position: Home > DataSheet > Index A > A82 Series > A828ZSLB, A8290, A8290SETTR-T

Low Cost Custom Prototype PCB Manufacturer

A828ZSLB, A8290, A8290SETTR-T

Table of contents:
Info of A828ZSLB
Info of A8290
Info of A8290SETTR-T

A828ZSLB, A8290, A8290SETTR-T Selling Leads, Datasheet

MFG:ALLEGRO Package Cooled:SOP D/C:04+

A828ZSLB, A8290, A8290SETTR-T Datasheet download

Five Points

Part Number: A828ZSLB

MFG: ALLEGRO

Package Cooled: SOP

D/C: 04+

Attentive hint

Want to post a buying lead? If you are not a member yet, please select the specific/related part number first and then fill the quantity and your contact details in the "Request for Quotation Form" on the left, and then click "Send RFQ".Your buying lead can then be posted, and the reliable suppliers will quote via our online message system or other channels soon.

How to buy ?

How long will receive a response.

Top Sellers:

TOP

A8290 General Description

Intended for analog and digital satellite receivers, this single low noise block converter regulator (LNBR) is a monolithic linear and switching voltage regulator, specifically designed to provide the power and the interface signals to an LNB down converter via coaxial cable. The A8290 requires few external components, with the boost switch and compensation circuitry integrated inside of the device. A high switching frequency is chosen to minimize the size of the passive filtering components, further assisting in cost reduction. The high levels of component integration ensure extremely low noise and ripple figures.

The A8290 has been designed for high efficiency, utilizing the Allegro® advanced BCD process. The integrated boost switch has been optimized to minimize both switching and static losses. To further enhance efficiency, the voltage drop across the tracking regulator has been minimized.

The A8290 has integrated tone detection capability, to support full two-way DiSEqC™ communications. Several schemes are available for generating tone signals, all the way down to no-load, and using either the internal clock or an external time source. A DiSEqC™ filter bypass switch is also integrated, to minimize the output impedance during tone generation.

A comprehensive set of fault registers are provided, which comply with all the common standards, including: overcurrent, thermal shutdown, undervoltage, cable disconnect, power not good, and tone detect.

The device uses a 2-wire bidirectional serial interface, compatible with the I²C™ standard, that operates up to 400 kHz.

The A8290 is supplied in a lead (Pb) free 28-lead MLP/QFN.

A8290 Maximum Ratings

2-wire serial I²C™-compatible interface: control (write) and status (read)
LNB voltages (16 programmable levels) compatible with all common standards
Tracking switch-mode power converter for lowest dissipation
Integrated converter switches and current sensing
Provides up to 700 mA continuous load current
Output current limit of 900 mA typical, with 48 ms timer
Static current limit circuit allows full current at startup and 13→18 V output transition; reliably starts wide load range
Push-pull output stage minimizes 13→18 V and 18→13 V output transition times for highly capacitive loads
Adjustable rise/fall time via external timing capacitor
Built-in tone oscillator, factory-trimmed to 22 kHz facilitates DiSEqC™ tone encoding, even at no-load
Four methods of 22 kHz tone generation, via I²C™ data bits and/or external pin
Filter bypass MOSFET minimizes losses during tone transmit
22 kHz tone detector facilitates DiSEqC™ 2.0 decoding
Provides V_OUT within 19 to 21 VDC at 700 mA for SWM (single wire multiswitch) operation
Diagnostics for output voltage level, input supply UVLO, and DiSEqC™ tone output
Auxiliary modulation input
LNB overcurrent with timer
Cable disconnect diagnostic

Hotspot Suppliers Product

Product List A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9

MT58L64L18CT-10

Price: 4-6 USD

MT58L64L18CT-10 TQFP100
DL-7140-211M

Price: 5-6.5 USD

DL-7140-211M laser tube
74LVC74APG

Price: 4-5 USD

74LVC74APG - IC FLIP FLOP D-Type POS-EDG DUAL 14TSSOP
CY28346ZI-2

Price: 6.5-8 USD

CYPRESS - Clock Synthesizer with Differential CPU Outputs
PI5V330QEX

Price: 0.284-0.286 USD

PI5V330QEX Pericom Multiplexer Switch ICs
BSM300GA120DN2

Price: 1-2 USD

IGBT power module, Single switch, 1200 V, Collector-emitter voltage, 430A
SVA150XG04TB

Price: 1-2 USD

a-Si TFT-LCD, NEC, 228.096Hmm, 560V
PC354N1

Price: 0.124-0.2 USD

PC354N1T - Mini-flat Package, AC Input Type Photocoupler - Sharp Electrionic Components
RL1210JR-070R22L

Price: 0.177-0.178 USD

RL1210JR51-XX-BL - Thick Film Chip Resistor Low Ohmic - TAITRON Components Incorporated
STPS140A

Price: 0.053-0.055 USD

STPS140A - POWER SCHOTTKY RECTIFIER - STMicroelectronics
STA013

Price: 1.45-1.5 USD

STA013 - MPEG 2.5 LAYER III AUDIO DECODER - STMicroelectronics
SMBJ5347B

Price: 0.073-0.075 USD

SMBJ5347B - 5 Watt Surface Mount Silicon Zener Diodes - Micro Commercial Components