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參數(shù)資料
| 型號： | ISL9208 |
| 廠商： | Intersil Corporation |
| 英文描述： | Multi-Cell Li-ion Battery Pack OCP/Analog Front End(多節(jié)鋰離子電池組OCP/模擬前端) |
| 中文描述： | 多單元鋰離子電池OCP /模擬前端（多節(jié)鋰離子電池組OCP /模擬前端） |
| 文件頁數(shù)： | 24/28頁 |
| 文件大小： | 504K |
| 代理商： | ISL9208 |
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24
FN6446.1
November 2, 2007
Register Protection
The Discharge Set, Charge Set, and Feature Set
configuration registers are write protected on initial power
up. In order to write to these registers it is necessary to set a
bit to enable each one. These write enable bits are in the
Write Enable register (Address 08H).
Write the FSETEN bit (Addr 8:bit 7) to “1” to enable changes
to the data in the Feature Set register (Address 7).
Write the CHSETEN bit (Addr 8:bit 6) to “1” to enable
changes to the data in the Feature Set register (Address 6).
Write the DISSETEN bit (Addr 8:bit 5) to “1” to enable
changes to the data in the Feature Set register (Address 5).
The microcontroller can reset these bits back to zero to
prevent inadvertent writes that change the operation of the
pack.
Operation State Machine
Figure 14 shows a device state machine which defines how
the ISL9208 responds to various conditions.
POWER FAILS AND ONE OR MORE OF THE SUPPLIES, VCC, V
CELL1
, V
CELL2
,
AND V
CELL3
DO NOT MEET MINIMUM VOLTAGE REQUIREMENTS
WKUP goes above or below
threshold (edge triggered).
Or, SLEEP bit is set to ‘0’
I
2
C INTERFACE IS DISABLED. BIASING IS
DISABLED. ALL REGISTERS SET TO DEFAULT
VALUES (ALL “0”)
POWER DOWN STATE
I
2
C INTERFACE IS ENABLED. BIASING IS
ENABLED. VOLTAGE REGULATOR IS
ENABLED.
POWER UP STATE
VOLTAGE REGULATOR IS ON
LOGIC AND REGISTERS ARE POWERED
BY RGO
CFET, DFET, CELL BALANCING OUTPUTS
ARE ALL OFF. (REQUIRE AN EXTERNAL
COMMAND TO TURN ON)
CHARGE AND DISCHARGE CURRENT
PROTECTION CIRCUITS AND
TEMPERATURE PROTECTION CIRCUITS
ARE ACTIVE (DEFAULT). OVERCURRENT
CONDITIONS FORCE POWER FETS TO
TURN OFF. OVER-TEMPERATURE
CONDITIONS FORCE POWER FETS AND
CELL BALANCE OUTPUTS TO TURN OFF.
VOLTAGE AND TEMPERATURE
MONITORING CIRCUITS ARE AWAITING
EXTERNAL CONTROL.
MAIN OPERATING STATE
Power is applied and all of the supplies, VCC, V
CELL1
, V
CELL2
,
and V
CELL3
meet minimum voltage requirements
VOLTAGE REGULATOR IS OFF
BIASING IS OFF
LOGIC AND REGISTERS ARE POWERED
BY V
CELL1
CFET, DFET, CELL BALANCING OUTPUTS
ARE ALL OFF.
CHARGE AND DISCHARGE CURRENT
PROTECTION CIRCUITS ALL OFF.
VOLTAGE AND TEMPERATURE
MONITORING CIRCUITS ARE OFF.
I
2
C COMMUNICATION IS ACTIVE (IF
VCELL1 VOLTAGE IS HIGH ENOUGH TO
OPERATE WITH THE EXTERNAL DEVICE.)
SLEEP STATE
SLEEP bit is set to ‘1’
FIGURE 14. DEVICE OPERATION STATE MACHINE
ISL9208
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| ISL9208_0711 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Multi-Cell Li-ion Battery Pack OCP/Analog Front End |
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| ISL9208IRZ-T | 功能描述:IC MULTI-CELL LI-ION PROT 32-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR) |
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