ADUM4070集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

ADUM4070屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的ADUM4070穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器DC-DC 開關(guān)穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級(jí)設(shè)備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應(yīng)用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關(guān)元件，設(shè)備提供的電力會(huì)通過該元件。

GENERAL DESCRIPTION

The ADuM40701 is a regulated dc-to-dc isolated power supply controller with an internal MOSFET driver. The dc-to-dc controller has internal isolated PWM feedback from the secondary side based

on the iCoupler? chip scale transformer technology and complete loop compensation. This architecture eliminates the need to use

an optocoupler for feedback and compensates the loop for stability. The ADuM4070 isolator provides a more stable output voltage and

higher efficiency compared to unregulated isolated dc-to-dc power

supplies. The fully integrated feedback and loop compensation

in a wide-body SOIC package provide a solution with a smaller form factor and 8.3 mm creepage distance.

The regulated feedback provides a relatively flat efficiency curve

over the full output power range. The ADuM4070 enables a dc-to-

dc converter with a 3.3 V to 24 V isolated output voltage range

from either a 5.0 V or a 3.3 V input voltage, with an output power of up to 2.5 W.

FEATURES Isolated PWM feedback with built-in compensation

Primary side transformer driver for up to 2.5 W output power

with 5 V input voltage

Regulated adjustable output: 3.3 V to 24 V Up to 70 efficiency 200 kHz to 1 MHz adjustable oscillator

Soft start function at power-up

Pulse-by-pulse overcurrent protection

Thermal shutdown 5000 V rms isolation

High common-mode transient immunity: >25 kV/μs

16-lead SOIC package with 8.3 mm creepage

High temperature operation: 105°C maximum

Safety and regulatory approvals (pending)

UL recognition: 5000 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice #5A VDE certificate of conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12

VIORM = 849 V peak

APPLICATIONS

Power supply start-up bias and gate drives Isolated sensor interfaces

Process controls