LTC1694 LINER [Linear Technology], LTC1694 Datasheet - Page 8

• Manufacturer Part Number: LTC1694
• Description: SMBus/I2C Accelerator
• Manufacturer: LINER [Linear Technology]

APPLICATIO S I FOR ATIO
LTC1694
RELATED PARTS
PART NUMBER
LTC1380/LTC1393
LTC1427-50
LTC1623
LTC1663
LTC1694-1
LTC1695
LTC1710
LTC1759
LT1786F
8
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
1V/DIV
V
C
f
SMBus
CC
LD
DESCRIPTION
8-Channel/4-Channel Analog Multiplexer with SMBus Interface
10-Bit Current DAC with SMBus Interface
Dual High Side Switch Controller with SMBus Interface
SMBus Interface 10-Bit Rail-to-Rail Micropower DAC
SMBus/I
SMBus/I
SMBus Dual High Side Switch
Single Chip Smart Battery Charger Controller with SMBus Interface
SMBus-Controlled CCFL Switching Regulator
= 5V
= 200pF
U
= 100kHz
LTC1694
2
2
U
C Accelerator
C Fan-Speed Controller in SOT-23
Comparison of SMBus Waveforms for the LTC1694 vs Resistor Pull-Up
1 s/DIV
R
= 15.8k
PULL-UP
W
U
1694 TA03
1V/DIV
V
C
f
SMBus
CC
LD
= 3.3V
= 200pF
= 100kHz
COMMENTS
Low R
50 A Full-Scale Current
8 Selectable Addresses/16 Channel Capability
DNL < 0.75LSB Max, 5-Lead SOT-23 Package
Includes AC Pull-Up Current Only
0.75 PMOS Linear Regulator with 180mA Output Current,
SMBus-Controlled 6-Bit DAC
Two 0.4 , 300mA N-Channel Switches
94% Efficiency with Input Current Limiting, Up to 8A I
1.25A, 200kHz, Floating or Grounded Lamp Configurations
LTC1694
ON
and Low Charge Injection
1 s/DIV
R
= 10.5k
PULL-UP
LINEAR TECHNOLOGY CORPORATION 1998
1694f LT/TP 0400 4K • PRINTED IN USA
1694 TA04
CHG