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ADUM4470_V01中文资料PDF规格书
ADUM4470_V01规格书详情
GENERAL DESCRIPTION
The ADuM4470/ADuM4471/ADuM4472/ADuM4473/
ADuM44741 are quad-channel, digital isolators with a regu- lated dc-to-dc isolated power supply controller and an internal MOSFET driver. The dc-to-dc controller has an internal isolated
PWM feedback from the secondary side, based on the iCoupler®
chip scale transformer technology and complete loop compen-
sation. This eliminates the need to use an optocoupler for
feedback and compensates the loop for stability.
The ADuM447x isolators provide 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 smaller
form factor and 8.3 mm creepage distance solution.
The regulated feedback provides a relatively flat efficiency curve
over the full output power range. The ADuM447x enable 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. The ADuM447x isolators provide four independent isolation
channels in a variety of channel configurations and data rates.
(The x in ADuM447x throughout this data sheet stands for the
ADuM4470/ADuM4471/ADuM4472/ADuM4473/ADuM4474.)
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 80 efficiency
Quad dc-to-25 Mbps (NRZ) signal isolation channels 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
20-lead SOIC package with 8.3 mm creepage High temperature operation: 105°C
APPLICATIONS
Power supply start-up bias and gate drives
Isolated sensor interfaces Process controls RS-232/RS-422/RS-485 transceivers
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
ADI(亚德诺) |
23+ |
SOP20300mil |
7350 |
原装进口,原厂直销!当天可交货,支持原型号开票! |
询价 | ||
ADI/亚德诺 |
22+ |
SOIC-20 |
13000 |
原装正品 |
询价 | ||
ANALOGDEVICES |
22+ |
N/A |
12245 |
现货,原厂原装假一罚十! |
询价 | ||
ADI/亚德诺 |
20+ |
20-LeadSOIC(Increase |
33680 |
ADI全新原装-可开原型号增税票 |
询价 | ||
ANALOGDEVICES |
23+ |
NA |
6000 |
可订货,请确认 |
询价 | ||
ANALOGDEVICES |
21+ |
NA |
12820 |
只做原装,质量保证 |
询价 | ||
ADI |
/ |
NA |
11 |
代理渠道.实单必成 |
询价 | ||
ADI(亚德诺) |
23+ |
N/A |
10000 |
正规渠道,只有原装! |
询价 | ||
ANALOGDEVICES |
22+ |
NA |
21000 |
原厂原包装。假一罚十。可开13%增值税发票。 |
询价 | ||
ADI(亚德诺)/LINEAR |
2117+ |
SOIC-20 |
315000 |
31个/管一级代理专营品牌!原装正品,优势现货,长期 |
询价 |