PDF MB39A136 Data sheet ( Hoja de datos )

Número de pieza	MB39A136
Descripción	2ch PFM/PWM DC/DC converter IC
Fabricantes	Fujitsu
Logotipo
Hay una vista previa y un enlace de descarga de MB39A136 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas
No Preview Available ! FUJITSU MICROELECTRONICS DATA SHEET DS04-27262-2E ASSP for Power Management Applications (General-Purpose DC/DC Converter) 2ch PFM/PWM DC/DC converter IC with synchronous rectification MB39A136 ■ DESCRIPTION MB39A136 is 2ch step-down DC/DC converter IC of the current mode N-ch/N-ch synchronous rectification meth- od. It contains the enhanced protection features, and supports the symmetrical-phase method and the ceramic capacitor. MB39A136 realizes rapid response, high efficiency, and low ripple voltage, and its high-frequency operation enables the miniaturization of inductors and I/O capacitors. ■ FEATURES • High efficiency • For frequency setting by external resistor : 100 kHz to 1 MHz • Error Amp threshold voltage : 0.7 V ± 1.0% • Minimum output voltage value : 0.7 V • Wide range of power-supply voltage : 4.5 V to 25 V • PFM/PWM auto switching mode and fixed PWM mode selectable • Supports Symmetrical-Phase method • With built-in over voltage protection function • With built-in under voltage protection function • With built-in over current protection function • With built-in over-temperature protection function • With built-in soft start/stop circuit without load dependence • With built-in synchronous rectification type output steps for N-ch MOS FET • Standby current : 0 [µA] Typ • Small package : TSSOP-24 ■ APPLICATION • Digital TV • Photocopiers • Surveillance cameras • Set-top boxes (STB) • DVD players, DVD recorders • Projectors • IP phones • Vending machine • Consoles and other non-portable devices Copyright©2008 FUJITSU MICROELECTRONICS LIMITED All rights reserved 2008.12 1 page MB39A136 ■ ABSOLUTE MAXIMUM RATINGS Parameter Symbol Conditions Rating Min Max Unit Power-supply voltage CB pin input voltage LX pin input voltage Voltage between CB and LX Control input voltage Input voltage Output current VVCC VCB VLX VCBLX VI VFB VILIM VCSx VMODE IOUT VCC pin CB1, CB2 pins LX1, LX2 pins ⎯ CTL1, CTL2 pins FB1, FB2 pins ILIM1, ILIM2 pins CS1, CS2 pins MODE pin DC DRVL1, DRVL2 pins, DRVH1, DRVH2 pins ⎯ 27 V ⎯ 32 V ⎯ 27 V ⎯ 7V ⎯ 27 V ⎯ VVREF + 0.3 V ⎯ VVREF + 0.3 V ⎯ VVREF + 0.3 V ⎯ VVB + 0.3 V ⎯ 60 mA Power dissipation Storage temperature PD TSTG Ta ≤ + 25 °C ⎯ ⎯ − 55 1644 + 150 mW °C WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings. DS04-27262-2E 5 5 Page MB39A136 ■ TYPICAL CHARACTERISTICS • Typical data Power dissipation Power dissipation vs. Operating ambient temperature 2000 1800 1600 1644 1400 1200 1000 800 600 400 200 0 −50 −25 0 +25 +50 +75 +100 Operating ambient temperature Ta ( °C) +125 VREF bias voltage vs. Operating ambient temperature 3.36 3.34 3.32 3.3 3.28 VCC = 15 V fosc = 500 kHz 3.26 3.24 -40 -20 0 +20 +40 +60 +80 +100 Operating ambient temperature Ta ( °C) Error Amp threshold voltage vs. Operating ambient temperature 0.71 0.705 0.7 0.695 CH1 CH2 VCC = 15 V fosc = 500 kHz 0.69 -40 -20 0 +20 +40 +60 +80 +100 Operating ambient temperature Ta ( °C) (Continued) DS04-27262-2E 11 11 Page

Páginas	Total 30 Páginas
PDF Descargar	[ Datasheet MB39A136.PDF ]

Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
MB39A132	Synchronous Rectification DC/DC Converter IC	Fujitsu
MB39A134	DC/DC converter IC	Fujitsu
MB39A136	2ch PFM/PWM DC/DC converter IC	Fujitsu

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