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LTC1623IS8 Datasheet

  • LTC1623IS8

  • SMBus Dual High Side Switch Controller

  • 12頁(yè)

  • LINER

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LTC1623
SMBus Dual High Side
Switch Controller
FEATURES
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTION
The LTC
廬
1623 SMBus switch controller is a slave device
that controls two high-side N-channel MOSFETs on either
the SMBus or the I
2
C bus. The LTC1623 operates with an
input voltage from 2.7V to 5.5V with a low standby current
of 14碌A(chǔ) (at 3.3V). In accordance with the SMBus specifi-
cation, the LTC1623 maintains the 0.6V V
IL
and 1.4V V
IH
input thresholds throughout the supply voltage range.
Using the 2-wire interface, CLK and DATA, the LTC1623
monitors the bus for a start condition (DATA going from
high to low while CLK is high). Once detected, the LTC1623
compares its address with the first (address) byte sent
over the bus from the master. If matched, the LTC1623 will
execute the second (command) byte from the master and
independently control the built-in charge pumps to drive
two external switches.
The LTC1623 has two three-state programmable address
pins, thus allowing eight different addresses and a total of
sixteen available switches on the same bus.
, LTC and LT are registered trademarks of Linear Technology Corporation.
SMBus and I
2
C Compatible
Built-In Charge Pumps Drive N-Channel Switches
16 Available Switches on the Same Bus
0.6V V
IL
and 1.4V V
IH
for DATA and CLK
Available in 8-Lead MSOP and S0 Packages
Low Standby Current: 14碌A(chǔ)
Eight Addresses from Two Three-State Address Pins
Internal Power-On Reset Timer
Internal Undervoltage Lockout
No Need for External Pull-Up Resistors at Output
No Need for Secondary Power Source
APPLICATIONS
s
s
s
s
s
Computer Peripheral Control
Laptop Computer Power Plane Switching
Portable Equipment Power Control
Industrial Control Systems
Handheld Equipment
TYPICAL APPLICATION
V
CC
2.7V TO 5.5V
14
10碌F
V
CC
(FROM
SMBus)
CLK
DATA
LTC1623
(PROGRAMMABLE)
AD0
AD1
GND
LOAD1
LOAD2
GA
GB
Q1
Q2
*
12
T
J
= 25擄C
GATE VOLTAGE (V)
10
8
6
4
2
0
0
1
2
3
4
SUPPLY VOLTAGE (V)
5
6
1623 G01
* SILICONIX Si69260Q
1623 TA01
U
U
U
Gate Drive Voltage
1

LTC1623IS8 產(chǎn)品屬性

  • LTC1623

  • 100

  • 集成電路 (IC)

  • PMIC - MOSFET，電橋驅(qū)動(dòng)器 - 外部開(kāi)關(guān)

  • -

  • 高端

  • 非反相

  • -

  • -

  • 2

  • 2

  • -

  • 2.7 V ~ 5.5 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 8-SOIC

  • 管件

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