Datasheet Linear Technology LT8494HFE#TRPBF — Datenblatt

Hersteller	Linear Technology
Serie	LT8494
Artikelnummer	LT8494HFE#TRPBF

SEPIC / Boost DC / DC-Wandler mit 2A, 70V-Schalter und 7µA Ruhestrom

Datenblätter

Vorschau und Herunterladen

PDF, 615 Kb, Sprache: en, Datei hochgeladen: Sep 19, 2017, Seiten: 26
SEPIC/Boost DC/DC Converter with 2A, 70V Switch, and 7μA Quiescent Current

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Preise

Verpackung

Package	TSSOP-20
Package Code	FE
Package Index	05-08-1663 (CB)

Parameter

Architecture	Constant Frequency Current Mode
Demo Boards	DC2242A
Design Tools	LTspice File
Export Control	no
Features	Burst Mode, Resistor Set Frequency, Power Good
Frequency	1500 kHz
Frequency Adjust Range	250kHz - 1.5MHz
Integrated Inductor	no
Ishutdown	0.3 µA
Isupply	0.003 mA
Monolithic	yes
Number of Outputs	1
Operating Temperature Range	-40 to 125 °C
Polyphase	no
Switch Current	2.55 A
Synchronous	no
Topology	Boost, Sepic
Topology 1	Boost, Sepic
Vin Max	32 V
Vin Min	1 V
Vin Min Startup	2.5 V
Vout Max	70 V
Vout Maximum	70V
Vout Min	1.202 V
Vref Accuracy Over Temp	1.5 %
Vswitch Max	70 V

Öko-Plan

RoHS

Compliant

Artikel

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Design Once; Use Twice: Monolithic SEPIC/Boost Regulators with Wide VIN Range Satisfy Requirements of Both Consumer and Commercial Vehicles &mdash LT Journal
PDF, 164 Kb, Datei veröffentlicht: Apr 14, 2016
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Design Once; Use Twice: Monolithic SEPIC/Boost Regulators
with Wide VIN Range Satisfy Requirements of Both Consumer
and Commercial Vehicles
Molly Zhu Automobile manufacturers continually add electronic control units (ECUs) to support
increasing numbers of performance, comfort and safety features. ECU power either
comes from a single lead-acid battery in consumer vehicles, or from two batteries in
commercial vehicles. Ideally, an ECU can run off either, enabling a single design for
both consumer and commercial vehicles. This requires that ECU power ICs support
an input range covering both configurationsвЂ”namely 3.5V to 60V. Furthermore,
the power ICs should feature ultralow quiescent current, preserving the vehicleвЂ™s
battery run time when the engine is off, but always-on systems remain engaged.
The LT8495 and LT8494 are high voltage
switching regulators that meet these
requirements when configured as
SEPIC or boost converters. Both parts
operate over 2.5V to 60V input, and
have low quiescent current to extend
the battery life. The quiescent current
of the LT8495 is 9Вµ A, and is 7Вµ A for the
LT8494. The parts are available in 20-lead
QFN and 20-lead TSSOP packages. supply voltage is monitored by poweron reset, and the software/hardware
activities are supervised by watchdog
timers. These functions are integrated …

Modellreihe

Serie: LT8494 (10)

LT8494EFE#PBF LT8494EFE#TRPBF LT8494EUF#PBF LT8494EUF#TRPBF LT8494HFE#PBF LT8494HFE#TRPBF LT8494IFE#PBF LT8494IFE#TRPBF LT8494IUF#PBF LT8494IUF#TRPBF

Herstellerklassifikation

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

Andere Namen:

LT8494HFETRPBF, LT8494HFE TRPBF