ISL88694IH5Z-TK Intersil, ISL88694IH5Z-TK Datasheet

ISL88694IH5Z-TK

Manufacturer Part Number

ISL88694IH5Z-TK

Description

IC ACCELERATOR SMBUS SOT23-5

Manufacturer

Intersil

Type

SMBus Acceleratorr

Datasheet

1.ISL88694IH5Z-TK.pdf (7 pages)

Specifications of ISL88694IH5Z-TK

Tx/rx Type

I²C Logic

Voltage - Supply

2.7 V ~ 5.5 V

Current - Supply

80µA

Mounting Type

Surface Mount

Package / Case

SOT-23-5, SC-74A, SOT-25

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Delay Time

Capacitance - Input

Other names

ISL88694IH5Z
ISL88694IH5ZTR

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ISL88694IH5Z-TK

Manufacturer:

VISHAY

Quantity:

3 000

Company:

H&T Electronics

Part Number:

ISL88694IH5Z-TK

Quantity:

360

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SMBus Accelerator (SMA)

The ISL88694 SMBus accelerator (SMA) is a dual active

pull-up bus terminator designed to improve data

transmission speed on SMBus or similar 2-wire serial bus

interfaces. The ISL88694 is also compatible to the I

bus.

The SMA detects rising input transitions with two internal

voltage references and two comparators per channel. After

the voltage on a data line crosses the first threshold

speed transition. After the voltage crosses the second

threshold (V

activated, leaving an active pull-up current of 275µA on the

line. When both channels are HIGH, the pull-up current for

both lines is reduced to 100µA to save power. Internal logic

ensures that the active and boost pull-up current sources are

not activated during downward transitions.

The level for V

referred to V

invariant for all power supply voltages between 2.7V and

5.5V.

A noise filter on each channel prevents the circuit from

responding to input transitions that do not exceed a voltage-

time threshold. To activate the boost circuit, the input must

exceed V

The SMA permits operation of the bus at frequencies up to

100kHz, despite the capacitive loads of multiple devices

and/or long PC board traces. Enhanced ESD protection on

the accelerator pins are guaranteed to withstand 8kV ESD

(HBM) events.

The SMBus Accelerator provides an essential function in

SMBus applications because of distributed capacitance of

SMBus and multiple device input capacitances at various

nodes. By incorporating SMA, systems using SMBus or I

can reliably increase their bus load without the risk of data

loss.

Ordering Information

ISL88694IH5Z (Note) 5-pin SOT (Pb-Free)

Add “-TK” suffix for tape and reel.

NOTE: Intersil Pb-free products employ special Pb-free material

sets; molding compounds/die attach materials and 100% matte tin

plate termination finish, which are RoHS compliant and compatible

with both SnPb and Pb-free soldering operations. Intersil Pb-free

products are MSL classified at Pb-free peak reflow temperatures that

meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

TRIPL

PART NUMBER

ISL88694IH5

), the boost pull-up current source is activated to

TRIPL

TRIPH

. This feature makes the switching behavior

by 100Vns (typical) (See Figure 10).

), the boost pull-up current source is de-

is controlled by a bandgap voltage

PACKAGE

5-pin SOT

Data Sheet

TEMP RANGE (°C)

-40 to 85

C serial

1-888-INTERSIL or 321-724-7143

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Features

• Active Termination for SMBus lines

• Enhances System Bus Signal Rise Time

• Increases Bus Capacity While Guaranteeing Data Integrity

• 2.2mA Rise Time Supply Current

• 8kV ESD Protection on SDA and SCL Pins

• Wide Operating Voltage Range: 2.7V to 5.5V

• 2-Wire SMBus and I

• Small Package - SOT23-5

• Pin-for-Pin Compatible with the LTC1694

• Pb-Free Available (RoHS Compliant)

Target Applications

• Servers

• Data Acquisition

• Routers

• Battery Chargers

• Portable Instrumentation

• Notebook

• PC

• Facilities Tracking System

Pinout

January 21, 2005

All other trademarks mentioned are the property of their respective owners.

Intersil (and design) is a registered trademark of Intersil Americas Inc.

GND

N.C.

C Compatible (100kHz)

(5 LD SOT-23)

TOP VIEW

ISL88694

SMBus1

SMBus2

FN8239.1

Related parts for ISL88694IH5Z-TK

ISL88694IH5Z-TK Summary of contents

Page 1

... PART NUMBER PACKAGE ISL88694IH5 5-pin SOT ISL88694IH5Z (Note) 5-pin SOT (Pb-Free) Add “-TK” suffix for tape and reel. NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations ...

Page 2

Pin Descriptions SOT-23 SYMBOL GND 3 N.C. 4 SMBus1 5 SMBus2 System Diagram ISL88694 V DD SMBus1 SMBus2 GND CLK IN Devices; SBS, PCI, Compact PCI, CLK OUT PMCI, ACPI, ICMB, IPMI, IPMB,SMBus ...

Page 3

Absolute Maximum Ratings Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . -1V to 6.5V Operating Junction Temperature . ...

Page 4

Typical Performance Curves 370 350 330 310 290 VDD=5.5V 270 250 VDD=2.7V 230 210 -60 -40 - TEMPERATURE (°C) FIGURE 1. ACTIVE PULL-UP CURRENT. SMBus PIN=0V 120 110 100 90 VDD=5. VDD=2. ...

Page 5

Typical Performance Curves 0.70 0.65 0.60 0.55 VDD=5.5V 0.50 VDD=2.7V 0.45 0.40 0.35 0.30 -60 -40 - TEMPERATURE (°C) FIGURE 5. V VOLTAGE TRIPH FIGURE 7. BOOST PULL-UP CURRENT vs. SMBus VOLTAGE Functional Description SMBus Overview 2 ...

Page 6

ISL88694 Operation To improve the operation of the SMBus where larger bus capacitance exists, the ISL88694 provides active pull-up using switched current sources. When the bus is idle and both lines are HIGH, a standby pull-up current of 100µA is ...

Page 7

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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