PDF SC1464 Data sheet ( Hoja de datos )

Número de pieza	SC1464
Descripción	60mA PROGRAMMABLE FIXED FREQUENCY CHARGE PUMP DOUBLER
Fabricantes	Semtech Corporation
Logotipo
Hay una vista previa y un enlace de descarga de SC1464 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas
No Preview Available ! 60mA PROGRAMMABLE FIXED FREQUENCY CHARGE PUMP DOUBLER SC1464 PRELIMINARY - August 11, 2000 DESCRIPTION TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com FEATURES The SC1464 is a versatile charge pump designed for use in battery operated power supply applications. A simple, low current charge pump doubler can be imple- mented without costly inductors or capacitors. Internal MOSFET’s and control circuitry eliminate the need for costly board space and design time. The small device footprint allows for compact circuit design. The SC1464 charge pump can be used for applications that require up to 60mA of output current with VIN = 2.85V and VOUT = 5.2V. The small 8 lead MSOP-8 package helps minimize board space. The TF1 and TF2 pins provide binary control of the oscillator frequency to either 1 MHz, 260kHz, 32kHz or 8kHz. The user can change the frequency during oper- ation with extremely fast settling time. = Small size - MSOP-8 package = Typical efficiency of 90% @ full load = Designed to work with ceramic or tantalum capacitors = Soft start functionality = Short-Circuit and Over-Temperature protection = <55µA input current @ no load (TF1=0;TF2=1) = <330µA input current @ no load (TF1=0;TF2=0) = Oscillator frequency accurate to ±5% = Shutdown current < 1µA = All Specifications rated over the full temperature range (-40°C to 85 °C) APPLICATIONS = Cellular phones = Handheld devices = PDA power supplies = Peripheral card supplies APPLICATION CIRCUIT ORDERING INFORMATION Part Number(1) Package SC1464CMS.TR MSOP-8 Note: (1) Only available in tape and reel packaging. A reel contains 2500 devices. Vin =3 V +/- 5% Logic Input or Vin Cin TF1 TF2 U1 SC1464 7 Vin Vo 3 4 EN C+ 5 1 TF1 2 TF2 C- 6 Vo =5.2 V to 6.2 V CBucket Cout Iout 60mA 20mA 60mA 20mA © 2000 SEMTECH CORP. Freq 260kHz 260kHz 1MHz 1MHz Cin 3.3uF 1.0uF 1.0uF 0.22uF Cout 3.3uF 1.0uF 1.0uF 0.22uF CBucket 2.2uF 0.22uF 0.22uF 0.10uF 1 652 MITCHELL ROAD NEWBURY PARK CA 91320 1 page PRELIMINARY - August 11, 2000 60mA PROGRAMMABLE FIXED FREQUENCY CHARGE PUMP DOUBLER SC1464 96.00% Eff vsVo(260kHz) 94.00% 92.00% 20ma 40ma 60ma 90.00% 4.50 5.00 5.50 6.00 6.50 7.00 Vo(V) VovsIo(260kHz) 7.500 7.000 6.500 6.000 5.500 5.000 4.500 4.000 3.500 3.000 2.E-02 3.E-02 3.E-02 4.E-02 4.E-02 5.E-02 Vin = 2.5 Vin = 3.0 Vin = 3.5 5.E-02 6.E-02 6.E-02 Io(A) 96.00% Eff vsVin(260kHz) 94.00% 92.00% 60ma 90.00% 2.50 2.70 2.90 3.10 3.30 3.50 Vin(V) IinvsVin(260kHz) 140.0E-3 120.0E-3 100.0E-3 80.0E-3 60.0E-3 40.0E-3 20.0E-3 20ma 40ma 000.0E+0 60ma 2.45 2.65 2.85 3.05 3.25 3.45 3.65 Vin(V) IinvsIo(260kHz) 140.0E-3 120.0E-3 100.0E-3 80.0E-3 60.0E-3 40.0E-3 20.0E-3 000.0E+0 1.E-02 2.E-02 3.E-02 4.E-02 Io(A) 5.E-02 Vin=2.5 Vin=3 Vin=3.5 6.E-02 7.E-02 Eff vsIo(260kHz) 95.50% 95.00% 94.50% 94.00% 93.50% 93.00% 92.50% Vin = 2.5 Vin = 3.0 Vin=3.5 92.00% 10.0E-3 20.0E-3 30.0E-3 40.0E-3 Io(A) 50.0E-3 60.0E-3 70.0E-3 © 2000 SEMTECH CORP. 5 652 MITCHELL ROAD NEWBURY PARK CA 91320 5 Page

Páginas	Total 10 Páginas
PDF Descargar	[ Datasheet SC1464.PDF ]

Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
SC146	(SCxxx) Triacs	Digitron Electronic
SC146	(SC141 / SC146) 6-A AND 10-A SILICON TRIACS	ETC
SC146	Thyristor TRIAC 200V 120A 3-Pin(3+Tab) TO-220AB	New Jersey Semiconductor
SC1460	5mA CAPLESSTM CHARGE PUMP	Semtech Corporation

Número de pieza	Descripción	Fabricantes
SLA6805M	High Voltage 3 phase Motor Driver IC.	Sanken
SDC1742	12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.	Analog Devices

DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.

DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar