A8293SESTR-T Datasheet, PDF (2/19 Pages) Allegro MicroSystems – Single LNB Supply and Control Voltage Regulator

A8293
Single LNB Supply and Control Voltage Regulator
Description (continued)
A comprehensive set of fault registers are provided, which comply
with all the common standards, including: overcurrent, thermal
shutdown, undervoltage, and power not good.
The device uses a 2-wire bidirectional serial interface, compatible
with the I²C™ standard, that operates up to 400 kHz.
The A8293 is supplied in two lead (Pb) free MLP/QFN packages:
ES, 20-contact, 4 mm × 4 mm, 0.75 nominal overall height, and
ET, 28-contact, 5 mm × 5 mm, 0.90 nominal overall height.
Selection Guide
Part Number
Packing¹
Description
A8293SESTR-T²
7 in. reel, 1500 pieces/reel
12 mm carrier tape
ES package, MLP/QFN surface mount
4 mm × 4 mm × 0.75 mm nominal height
A8293SETTR-T^2,3
7 in. reel, 1500 pieces/reel
12 mm carrier tape
ET package, MLP/QFN surface mount
5 mm × 5 mm × 0.90 mm nominal height
1_{Contact Allegro for additional packing options.}
2_{Leadframe plating 100% matte tin.}
3_{This variant is in production but has been determined to be NOT FOR NEW DESIGN. This classification indicates that sale}
of this device is currently restricted to existing customer applications. The variant should not be purchased for new design ap-
plications because obsolescence in the near future is probable. Status date change September 21, 2010.
Absolute Maximum Ratings
Characteristic
Symbol
Conditions
Rating
Units
Load Supply Voltage, VIN pin
V_IN
Output Current¹
I_OUT
30
V
Internally
Limited
A
Output Voltage, BOOST pin
–0.3 to 33
V
Output Voltage, LNB pin
Surge²
–1 to 33
V
Output Voltage, LX pin
–0.3 to 30
V
Output Voltage, VCP pin
V_CP
Logic Input Voltage, EXTM pin
–0.3 to 41
V
–0.3 to 5
V
Logic Input Voltage, other pins
–0.3 to 7
V
Logic Output Voltage
–0.3 to 7
V
Operating Ambient Temperature
T_A
–20 to 85
°C
Junction Temperature
T_J(max)
150
°C
Storage Temperature
T_stg
–55 to 150
°C
1_{Output current rating may be limited by duty cycle, ambient temperature, and heat sinking. Under any set of conditions, do not exceed the speci-}
fied current ratings, or a junction temperature, T_J, of 150°C.
2_{Use Allegro recommended Application circuit.}
Package Thermal Characteristics*
Package
R_θJA
(°C/W)
PCB
ES
37 (estimated)
4-layer
ET
32
4-layer
* Additional information is available on the Allegro website.
Allegro MicroSystems, LLC
2
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com