LTC1694CS5#TRMPBF Linear Technology, LTC1694CS5#TRMPBF Datasheet

IC ACCEL SMBUS DUAL TSOT23-5

LTC1694CS5#TRMPBF

Manufacturer Part Number
LTC1694CS5#TRMPBF
Description
IC ACCEL SMBUS DUAL TSOT23-5
Manufacturer
Linear Technology
Datasheet

Specifications of LTC1694CS5#TRMPBF

Applications
Data Transport
Interface
SMBus (2-Wire/I²C)
Voltage - Supply
2.7 V ~ 6 V
Package / Case
TSOT-23-5, TSOT-5, TSOP-5
Mounting Type
Surface Mount
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Operating Temperature (max)
70C
Rad Hardened
No
Ic Interface Type
I2C, SMBus
Supply Voltage Range
2.7V To 6V
Operating Temperature Range
0°C To +70°C
Digital Ic Case Style
SOT-23
No. Of Pins
5
Msl
MSL 1 - Unlimited
Slew Rate
0.5V/µs
Rohs Compliant
Yes
Bandwidth
100kHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LTC1694CS5#TRMPBFTR

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FEATURES
TYPICAL APPLICATIO
APPLICATIO S
Improves SMBus Rise Time Transition
Ensures Data Integrity with Multiple Devices
on the SMBus
Improves Low State Noise Margin
Auto Detect Low Power Standby Mode
Wide Supply Voltage Range: 2.7V to 6V
Low Profile (1mm) SOT-23 (ThinSOT
Notebook and Palmtop Computers
Portable Instruments
Battery Chargers
Industrial Control Application
TV/Video Products
ACPI SMBus Interface
SMBus
OUT
CLK
CLK
DEVICE 1
IN
C1
0.1 F
V
5V
CC
SDA
SCL
V
GND
DATA
DATA
CC
OUT
IN
LTC1694
U
SMBus1
SMBus2
OUT
CLK
CLK
DEVICE N
IN
U
TM
DATA
DATA
) Package
OUT
IN
1694 TA01
DESCRIPTIO
The LT C
enhance data transmission speed and reliability under all
specified SMBus loading conditions. The LTC1694 is also
compatible with the Philips I
The LTC1694 allows multiple device connections or a
longer, more capacitive interconnect, without compro-
mising slew rates or bus performance, by using two
bilevel hysteretic current source pull-ups.
During positive bus transitions, the LTC1694 current
sources provide 2.2mA to quickly slew the SMBus line.
During negative transitions or steady DC levels, the cur-
rent sources decrease to 275 A to improve negative slew
rate and improve low state noise margins. An auto detect
standby mode reduces supply current if both SCL and
SDA are high.
The LTC1694 is available in a 5-pin SOT-23 package,
requiring virtually the same space as two surface mount
resistors.
ThinSOT is a trademark of Linear Technology Corporation.
I
*U.S. Patent No. 6,650,174
2
C is a trademark of Philips Electronics N.V.
, LTC and LT are registered trademarks of Linear Technology Corporation.
SMBus/I
1V/DIV
®
1694 is a dual SMBus active pull-up designed to
V
C
f
SMBus
Comparison of SMBus Waveforms for
CC
LD
= 5V
= 200pF
the LTC1694 vs Resistor Pull-Up
= 100kHz
LTC1694
U
2
C Accelerator*
1 s/DIV
R
= 15.8k
PULL-UP
2
C
TM
Bus.
LTC1694
1694 TA02
1694fa
1

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LTC1694CS5#TRMPBF Summary of contents

Page 1

... SCL and SDA are high. The LTC1694 is available in a 5-pin SOT-23 package, requiring virtually the same space as two surface mount resistors. , LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation trademark of Philips Electronics N.V. ...

Page 2

LTC1694 ABSOLUTE AXI U RATI GS (Note 1) Supply Voltage (V ) ................................................. 7V CC SMBus1, SMBus2 Inputs ............ – 0. Operating Ambient Temperature Range LTC1694C ............................................... LTC1694I ............................................ – ...

Page 3

W U TYPICAL PERFOR A CE CHARACTERISTICS Pull-Up Current at SMBus = 0V 350 325 300 275 250 V = 2.7V CC 225 200 175 150 125 100 50 125 –50 –25 ...

Page 4

LTC1694 W BLOCK DIAGRA 100 A SMBus1 5 GND 2 SMBus2 4 TEST CIRCUITS SMBus1 CC C1 LTC1694 0 GND SMBus2 – LT1360 + TEST RAMP VOLTAGE 4 ...

Page 5

U U APPLICATIO S I FOR ATIO SMBus Overview SMBus communication protocol employs open-drain drivers with resistive or current source pull-ups. This protocol allows multiple devices to drive and monitor the bus without bus contention. The simplicity of resistive or ...

Page 6

LTC1694 U U APPLICATIO S I FOR ATIO R : The maximum on resistance of the open- ON(MAX) drain driver I : The maximum LTC1694 low pull-up cur- PULL-UP(MAX) rent is 350 A Fall Time Fall time is a function ...

Page 7

... MOLD FLASH SHALL NOT EXCEED 0.254mm 6. JEDEC PACKAGE REFERENCE IS MO-193 Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. W ...

Page 8

... Efficiency with Input Current Limiting 1.25A, 200kHz, Floating or Grounded Lamp Configurations Provides Capacitance Buffering, SDA and SCL Hot Swapping, Level Shifting www.linear.com R PULL-UP = 10.5k 1 s/DIV 1694 TA04 and Low Charge Injection ON LT/TP 0304 REV A 1K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1998 CHG 1694fa ...

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