参数资料
型号: DS2782E+T&R
厂商: Maxim Integrated Products
文件页数: 19/28页
文件大小: 0K
描述: IC FUEL GAUGE BATT 8TSSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
功能: 燃料,电量检测计/监控器
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 2.5 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(0.173",4.40mm 宽)
供应商设备封装: 8-TSSOP
包装: 带卷 (TR)
DS2782
STATUS REGISTER
The STATUS register contains bits which report the device status. The bits can be set internally by the DS2782.
The CHGTF, AEF, SEF, LEARNF and VER bits are read only bits which can be cleared by hardware. The UVF and
PORF bits can only be cleared via the 2-Wire interface.
Figure 18. Status Register Form at
ADDRESS
01h
BIT DEFINITION
FIELD
BIT
FORMAT
ALLOWABLE VALUES
Charge Termination Flag
CHGTF
7
Read Only
Set to 1 when: ( VOLT > VCHG ) AND ( 0 < IAVG < IMIN ) continuously
for a period between two IAVG register updates ( 28s to 56s ).
Cleared to 0 when: RARC < 90%
Active Empty Flag
AEF
6
Read Only
Set to 1 when: VOLT < VAE
Cleared to 0 when: RARC > 5%
Standby Empty Flag
SEF
5
Read Only
Set to 1 when: RSRC < 10%
Cleared to 0 when: RSRC > 15%
Learn Flag – When set to 1, a charge cycle can be used to learn battery
capacity.
Set to 1 when: ( VOLT falls from above VAE to below VAE ) AND
LEARNF
4
Read Only
( CURRENT > IAE )
Cleared to 0 when: ( CHGTF = 1 ) OR ( CURRENT < +100μV ) OR
( ACR = 0 **) OR ( ACR written or recalled from EEPROM) OR ( SLEEP
Entered )
Reserved
3
Read Only
Undefined
Under-Voltage Flag
UVF
2
Read / Write *
Set to 1 when: VOLT < V SLEEP
Cleared to 0 by: User
Power-On Reset Flag – Useful for reset detection, see text below.
PORF
1
Read / Write *
Set to 1 upon Power-Up by hardware.
Cleared to 0 by: User
Reserved
0
Read Only
Undefined
* - This bit can be set by the DS2782, and may only be cleared via the 2-Wire interface.
** - LEARNF is only cleared if ACR reaches 0 after VOLT < VAE.
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