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参数资料
| 型号： | LTC6802IG-1#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 28/38页 |
| 文件大小： | 0K |
| 描述： | IC MONITOR BATT STACK MC 44-SSOP |
| 标准包装： | 2,000 |
| 功能： | 电池监控器 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4 V ~ 50 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-FSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 44-SSOP |
| 包装： | 带卷 (TR) |
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LTC6802-1
APPLICATIONS INFORMATION
Poll Interrupt Status (Level Polling)
1.
2.
3.
4.
Pull CSBI low
Send PLINT command byte
SDO output from bottom device pulled low if any device has an interrupt condition; otherwise, SDO high
Pull CSBI high to exit polling
FAULT PROTECTION
Overview
Care should always be taken when using high energy
sources such as batteries. There are numerous ways that
systems can be [mis-]configured that might affect a bat-
tery system during its useful lifespan. Table 13 shows the
Table 13. LTC6802-1 Failure Mechanism Effect Analysis
various situations that should be considered when plan-
ning protection circuitry. The first five scenarios are to be
anticipated during production and appropriate protection
is included within the LTC6802-1 device itself.
SCENARIO
Cell input open-circuit (random)
Cell input open-circuit (random)
EFFECT
Power-up sequence at IC inputs
Differential input voltage overstress
DESIGN MITIGATION
Clamp diodes at each pin to V + & V – (within IC) provide
alternate power-path.
Zener diodes across each cell voltage input pair (within IC)
limits stress.
Top cell input connection loss (V + ) Power will come from highest connected cell input
or via data port fault current
Clamp diodes at each pin to V + & V – (within IC) provide
alternate power-path. Diode conduction at data ports will impair
communication with higher-potential units.
Bottom cell input connection loss
(V – )
Power will come from lowest connected cell input or Clamp diodes at each pin to V + & V – (within IC) provide
via data port fault current alternate power-path. Diode conduction at data ports will impair
communication with higher-potential units.
Disconnection of a harness
between a group of battery cells
and the IC (in a system of stacked
groups)
Data link disconnection between
stacked LTC6802-1 units.
Loss of supply connection to the IC
Break of "daisy chain" communication (no stress
to ICs). Communication will be lost to devices
above the disconnection. The devices below the
disconnection are still able to communicate and
perform all functions, however, the polling feature is
disabled.
Clamp diodes at each pin to V + & V – (within IC) provide an
alternate power-path if there are other devices (which can
supply power) connected to the LTC6802-1. Diode conduction
at data ports will impair communication with higher-potential
units.
All units above the disconnection will enter standby mode
within 2 seconds of disconnect. Discharge switches are
disabled in standby mode.
Cell-pack integrity, break between
Daisy-chain voltage reversal up to full stack potential Use series protection diodes with top-port I/O connections
stacked units
Cell-pack integrity, break between
stacked units
Cell-pack integrity, break within
stacked unit
Cell-pack integrity, break within
stacked unit
during pack discharge
Daisy-chain positive overstress during charging
Cell input reverse overstress during discharge
Cell input positive overstress during charge
(RS07J for up to 600V). Use isolated data link at bottom-most
data port.
Add redundant current path link
Add parallel Schottky diodes across each cell for load-path
redundancy. Diode and connections must handle full operating
current of stack, will limit stress on IC
Add SCR across each cell for charge-path redundancy. SCR
and connections must handle full charging current of stack, will
limit stress on IC by selection of trigger Zener
68021fa
28
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC6802IG-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Multicell Addressable Battery Stack Monitor |
| LTC6802IG-2#3ZZPBF | 制造商:Linear Technology 功能描述: |
| LTC6802IG-2#PBF | 功能描述:IC MONITOR BATT STACK 44-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
| LTC6802IG-2#PBF | 制造商:Linear Technology 功能描述:IC BATTERY MONITOR LI-ION 50V SSOP44 |
| LTC6802IG-2#TRPBF | 功能描述:IC MONITOR BATT STACK 44-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
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