- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄44996 > LTC4110EUHF#TR (LINEAR TECHNOLOGY CORP) 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC38 PDF資料下載
參數(shù)資料
| 型號： | LTC4110EUHF#TR |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC38 |
| 封裝： | 5 X 7 MM, 0.75 MM HEIGHT, PLASTIC, MO-220WHKD, QFN-38 |
| 文件頁數(shù)： | 21/52頁 |
| 文件大?。?/td> | 450K |
| 代理商： | LTC4110EUHF#TR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁當(dāng)前第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁
LTC4110
28
4110fb
OPERATION
processed to allow compliance with smart battery charge
and discharge termination and protection control. How-
ever, there is no actual value processing of the voltage or
current charge commands. IC will acknowledge all smart
battery write commands, but process only a subset of
them. Full SMBus error and reset handling is supported.
The SMBus remains functional during backup mode, but
not in SHDN mode.
The LTC4110 SMBus address can be changed when
standard batteries are used to facilitate redundant backup
systems. Connect SELA pin to GND for 12h, VDD for 28h
and VREF for 20h. When a smart battery is selected by the
TYPE pin the SELA pin must be connected to GND to select
address 12h. Note: Although there are only 7 address bits
for SMBus, the above addresses shown follow the smart
battery convention of including the Read/Write bit as part
of the address value. The Read/Write bit becomes the
LSB of the SMBus address with the Read/Write bit value
assumed to be a 0 value.
If multiple LTC4110s with smart batteries are to be used,
each LTC4110 must be SMBus isolated from all other
LTC4110s so the main bus or host bus can only see one
LTC4110 and its corresponding smart battery at a time.
Failure to do so will cause multiple LTC4110s and smart
batteries responding to a single host query resulting in
errors. There are multiple channel SMBus multiplexer ICs
such as the LTC4305 and LTC4306 to help implement the
required isolation. Furthermore, if a given SMBus is high
in SMBus device count or long in length, you may want to
consider using SMBus accelerators. The above ICs listed
support that option.
If the SMBus is not used or to force all GPIOs to status
mode upon power-up, connect SELA to a typically 0.5
VREF voltage from VREF pin resistor divider. The SMBus
address then, if used, will be 12h.
Pull-ups are required on the SDA and SCL pin such that
when they are not being used, they are in a default high
state that means no bus activity. The pull-up voltage need
only be high enough to satisfy the logic high threshold.
Tying the pins low is a valid state on the SMBus that
means anything but the bus is free. This state will force
the LTC4110’s internal SMBus state machine to reset itself
because it thinks the SMBus is hung.
The LTC4110 does not support or respond to the following
SMBus V1.1 timing specications:
a) TTIMEOUT (This is not to be confused with the
LTC4110’s tTIMEOUT specication.)
b) TLOW:SEXT
c) TLOW:MEXT
The above specications have to do with detecting bus
hangs or SMBus devices that are taking too long to reply
using clock stretching and slowing down the SMBus
bandwidth. The LTC4110 is a slave only device that does
not do any clock stretching and works all the way up to
maximum 100kHz bus speed. It will not hang the bus.
The design will always reset its SMBus interface upon
receiving an SMBus Start Bit or a Stop Bit regardless of
the prior state of the bus.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC4110EUHF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC38 |
| LTC4151CS-2#TRPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| LTC4151HMS#TRPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| LTC4151HDD#TRPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| LTC4151HDD#PBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4110EUHF-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Battery Backup System Manager |
| LTC4120IUD#PBF | 制造商:Linear Technology 功能描述:BATTERY CHARGER, 400MA, QFN-16, Battery Type:Li-Ion, Li-Polymer, Input Voltage:4 |
| LTC4150 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Voltage, High-Side Current Sense |
| LTC4150_1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Coulomb Counter/ Battery Gas Gauge |
| LTC4150CMS | 功能描述:IC COUNTER/GAUGE GAS/BATT 10MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。