NSiP8940/NSiP8941/NSiP8942/NSiP8943/NSiP8944
Quad-Channel Digital Isolators with
Integrated DC to DC Converter
Datasheet (EN) 1.2
Product Overview
Safety Regulatory Approvals
The NSiP894x devices are quad-channel digital isolators
with integrated isolated DC-DC converter. The isolated
DC-DC converter provides up to 500mW output power
using on chip transformer. The feedback PWM signal is
sent to primary side by a digital isolator based on
Novosense capacity isolation technology. The high
integrated solution can help to simplify system design and
improve reliability. The NSiP894x device is safety certified
by UL1577 support 4.5kVrms withstand voltages, while
providing high electromagnetic immunity and low
emissions. The data rate of the NSiP894x is up to 150Mbps,
and the common-mode transient immunity (CMTI) is up to
150kV/us. The NSiP894x devices provide 5V to 5V, 5V to
3.3V, 3.3V to 3.3V conversion mode, the output voltage
can be set by SEL pin. The device can go into standby mode
when the PDIS pin set to high, and there is no output
voltage at VISO pin.
UL recognition: up to 4500Vrms for 1 minute per UL1577
CQC certification per GB4943.1-2011
CSA component notice 5A
DIN VDE V 0884-11:2017-01
Applications
Industrial automation system
Isolated SPI, RS232, RS485
General-purpose multichannel isolation
Device Information
Key Features
Part Number
Package
Body Size
NSiP894x-DSWR
SOW16
10.30mm × 7.50mm
Up to 4500Vrms Insulation voltage
Power supply voltage: 3.3V to 5.5V
5V to 5V, 5V to 3.3V, support 100mA load current
3.3V to 3.3V, support 60mA load current
Over current and over temperature protection
Date rate: DC to 150Mbps
Functional Block Diagrams
VDD
1
16 VISO
15 GND2
GND1
INA
2
OUTA
OUTB
OUTC
OUTD
SEL
3
4
5
6
7
8
14
13
12
11
10
9
High CMTI: 150kV/us
INB
INC
IND
Propagation delay: <15ns
High system level EMC performance:
Enhanced system level ESD, EFT, Surge immunity
PDIS
GND1
GND2
NSiP894x
Operation temperature: -40℃~125℃
RoHS-compliant packages:
Figure 1. NSiP894x Block Diagram1
1
SOW16
The isolation channel direction can be either depend on different part number.
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