Datasheet Linear Technology LT3482IUD#TRPBF — Ficha de datos

Fabricante	Linear Technology
Serie	LT3482
Numero de parte	LT3482IUD#TRPBF

Convertidor DC / DC Boost de 90 V con monitor de corriente de polarización APD

Hojas de datos

PDF, 201 Kb, Revisión: A, Archivo subido: sept 18, 2017

Extracto del documento

Embalaje

Package	3x3 QFN-16
Package Code	UD
Package Index	05-08-1691

Paramétricos

Architecture	Constant Frequency Current Mode
Demo Boards	DC975A
Design Tools	LTspice File
Export Control	no
Features	Integrated Schottky Diode, Adjustable Switching Frequency
Frequency	1100 kHz
Frequency Adjust Range	650kHz/1.1MHz
Integrated Inductor	no
Ishutdown	0.1 µA
Isupply	3.3 mA
Monolithic	yes
Number of Outputs	1
Operating Temperature Range	-40 to 85 °C
Polyphase	no
Switch Current	0.36 A
Synchronous	no
Topology	Boost
Vin Max	16 V
Vin Min	2.5 V
Vin Min Startup	2.5 V
Vout Max	90 V
Vout Min	1.235 V
Vswitch Max	48 V

Plan ecológico

RoHS

Obediente

Notas de Diseño

Descargar
A Complete Compact APD Bias Solution for a 10Gbits/s GPON System &mdash DN447
PDF, 110 Kb, Archivo publicado: jul 14, 2008
Extracto del documento
A Complete Compact APD Bias Solution for a 10Gbits/s
GPON System вЂ“ Design Note 447
Xin Qi
Introduction
Avalanche photo diode (APD) receiver modules are
widely used in п¬Ѓber optic communication systems. An
APD module contains the APD and a signal conditioning
ampliп¬Ѓer, but is not completely self contained. It still
requires signiп¬Ѓcant support circuitry including a high
voltage, low noise power supply and a precision current
monitor to indicate the signal strength. The challenge is
squeezing this support circuitry into applications with
limited board space. The LTВ®3482 addresses this challenge
by integrating a monolithic DC/DC step-up converter and
an accurate current monitor. The LT3482 can support
up to a 90V APD bias voltage, and the current monitor
provides better than 10% accuracy over four decades of
dynamic range (250nA to 2.5mA).
Recent communication design efforts increasingly focus
on the 10Gbits/s GPON system, which demands that the
transient response of the APD current monitor is less
than 100ns for an input current step of two decades of
magnitude. A simple compact circuit using the LT3482 is …

Linea modelo

Serie: LT3482 (4)

LT3482EUD#PBF LT3482EUD#TRPBF LT3482IUD#PBF LT3482IUD#TRPBF

Clasificación del fabricante

Power Management > Switching Regulator > Step-Up (Boost) Regulators > Internal Power Switch Boost

Otros nombres:

LT3482IUDTRPBF, LT3482IUD TRPBF

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