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Silicon Laboratories - QUAD DIGITAL ISOLATORS

Numéro de référence Si88344
Description QUAD DIGITAL ISOLATORS
Fabricant Silicon Laboratories 
Logo Silicon Laboratories 





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Si88344 fiche technique
Si88x4x
QUAD DIGITAL ISOLATORS WITH DC-DC CONVERTER
Features
High-speed isolators with
Highly-reliable: 100 year lifetime
integrated dc-dc converter
High electro-magnetic immunity
Fully-integrated secondary sensing and ultra-low emissions
feedback-controlled converter with RoHS compliant packages
dithering for low EMI
SOIC-20 wide body
dc-dc converter efficiency of 78% Isolation of up to 5000 Vrms
Up to 2 W isolated power with High transient immunity of
integrated power switches
100 kV/µs (typical)
Options include dc-dc shutdown, AEC-Q100 qualified
frequency control, and soft start Wide temp range
Conversion
–40 to +125 °C
3/5 V to isolated 3/5 V
24 V to isolated 3/5 V supported
Precise timing on digital isolators
0–100 Mbps
18 ns typical prop delay
Applications
Industrial automation systems Data acquisition
Hybrid electric and electric vehiclesMotor control
Isolated power supplies
PLCs, distributed control systems
Inverters
Safety Approval (Pending)
UL 1577 recognized
VDE certification conformity
Up to 5000 Vrms for 1 minute
IEC 60747-5-2 (VDE 0884-10)
CSA component notice 5A
EN 60950-1 (reinforced insulation)
approval
CQC certification approval
IEC 60950-1, 61010-1, 60601-1 GB4943.1
(reinforced insulation)
Description
The Si88xx integrates Silicon Labs’ proven digital isolator technology with an
on-chip isolated dc-dc converter that provides regulated output voltages of
3.3 or 5.0 V (or >5 V with external components) at peak output power levels
of up-to 2 W. These devices provide up-to four digital channels. The dc-dc
converter has user-adjustable frequency for minimizing emissions, a soft-start
function for safety, a shut-down option and loop compensation. The device
requires only minimal passive components and a miniature transformer.
The ultra-low-power digital isolation channels offer substantial data-rate,
propagation delay, size and reliability advantages over legacy isolation
technologies. Data rates up to 100 Mbps are supported, and all devices
achieve propagation delays of only 23 ns. Ordering options include a choice
of dc-dc converter features, isolation channel configurations and a fail-safe
mode. All products are certified by UL, CSA, VDE, and CQC.
Ordering Information:
See page 36.
Pin Assignments
See page 31
GNDP 1
VSW 2
VDDP 3
VDDA 4
GNDA 5
SH 6
A1 5
A2 6
A3 7
A4 8
HF
XMTR
HF
RCVR
HF
XMTR
HF
RCVR
HF
XMTR
HF
RCVR
HF
XMTR
HF
RCVR
Si88240
Patents pending
16 GNDB
15 VDDB
14 VREG
13 NC
12 VSNS
11 COMP
12 B1
11 B2
10 B3
9 B4
Rev. 0.5 4/15
Copyright © 2015 by Silicon Laboratories
Si88x4x
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.

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