LTC1710C LINER [Linear Technology], LTC1710C Datasheet

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LTC1710C

Manufacturer Part Number
LTC1710C
Description
SMBus Dual Monolithic High Side Switch
Manufacturer
LINER [Linear Technology]
Datasheet

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APPLICATIONS
FEATURES
TYPICAL
Two 0.4 /300mA N-Channel Switches
Available in MS8 and SO-8 Packages
SMBus and I
0.6V V
Low Standby Current: 14 A
Separate Drain Connection to SW0
Three Addresses from One Three-State Address Pin
Independent Control of Up to Six Switches
Built-In Power-On Reset Timer
Built-In Undervoltage Lockout
Handheld Computer Power Management
Computer Peripheral Control
Laptop Computer Power Plane Switching
Portable Equipment Power Control
Industrial Control Systems
ACPI SMBus Interface
IL
and 1.4V V
FROM SMBus
APPLICATION
(PROGRAMMABLE)
2
C Compatible
U
10 F
IH
CLOCK
DATA
2.7V TO 5.5V
AD1
for DATA and CLK
5
6
3
V
CC
CHARGE
8
SW0
PUMP
SW1
U
LTC1710
4
SW0D
0V TO V
1
CC
2
7
LOAD 1
LOAD 2
10 F
1710 TA01
The LTC
300mA switches that are controlled by a 2-wire SMBus
interface. With a low standby current of 14 A (3.3V), the
LTC1710 operates over an input voltage range of 2.7V to
5.5V while maintaining the SMBus specified 0.6V V
1.4V V
Using the 2-wire interface, CLK and DATA, the LTC1710
follows SMBus’s Send Byte Protocol to independently
control the two 0.4 internal N-channel power switches,
which are fully enhanced by onboard charge pumps.
The LTC1710 has one three-state programmable
address pin that allows three different addresses for a total
of six available switches on the same bus. The LTC1710
also features a separate user-controlled drain supply
(SW0D) to Switch 0 so that it can be used to control
SMBus peripherials using a different power supply.
DESCRIPTION
, LTC and LT are registered trademarks of Linear Technology Corporation.
IH
®
input thresholds.
1710 SMBus dual switch has two built-in 0.4 /
500
400
300
200
100
SMBus Dual Monolithic
0
0
T
A
= 25 C
U
Switch Voltage Drop
100
vs Load Current
LOAD CURRENT (mA)
High Side Switch
200
V
V
CC
CC
300
= 2.7V
= 5V
V
CC
= 3.3V
1710 TA02
LTC1710
400
IL
and
1

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LTC1710C Summary of contents

Page 1

FEATURES Two 0.4 /300mA N-Channel Switches Available in MS8 and SO-8 Packages 2 SMBus and I C Compatible 0.6V V and 1.4V V for DATA and CLK IL IH Low Standby Current Separate Drain Connection to SW0 Three ...

Page 2

... Charge Pump Oscillator Frequency OSC (Note RATINGS Operating Temperature Range LTC1710C................................................ LTC1710I ............................................ – Junction Temperature** ...................................... 125 C + 0.3V Storage Temperature Range .................. – 150 C CC Lead Temperature (Soldering, 10 sec)................... 300 C *Supply rails to DATA and CLK are independent of V **Although the LTC1710 can sustain T ...

Page 3

ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER t Output Turn-On Time ON (100 /1 F Load) t Output Turn-Off Time OFF (100 /1 F Load) V DATA/CLK Input Low Voltage IL AD1 Input Low Voltage V DATA/CLK High Voltage IH AD1 Input High ...

Page 4

LTC1710 W U TYPICAL PERFOR A CE CHARACTERISTICS Standby Current vs Temperature 3. 2. – 100 0 TEMPERATURE ( C) 1710 G01 ...

Page 5

W BLOCK DIAGRA START AND STOP DETECTORS DATA 6 SHIFT INPUT BUFFERS REGISTER CLK 5 COUNTER ADDRESS AD1 3 DECODER DIAGRA CLK t HD:STA t SU:STA DATA START U OPERATIO SMBus ...

Page 6

LTC1710 U OPERATIO The master then sends out the first byte. The first seven bits of this byte consist of the address of the device that the master wishes to communicate with. The last bit indicates whether the command will ...

Page 7

U OPERATIO Charge Pump To fully enhance the internal N-channel power switches, an internal charge pump is used to boost the gate drive to a maximum of 6V above V . The reason for the maximum CC charge pump output ...

Page 8

LTC1710 U TYPICAL APPLICATIONS FROM SMBus PROGRAMMABLE Figure 5. Switching Regulator with Low-Battery Detect Using Standby Current PACKAGE DESCRIPTION MS8 Package 8-Lead Plastic MSOP (LTC DWG # 05-08-1660) 0.118 0.004* (3.00 0.102) 0.192 0.004 (4.88 0.10) 0.040 ...

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