参数资料
型号: MAX11080GUU/V+T
厂商: Maxim Integrated Products
文件页数: 16/29页
文件大小: 0K
描述: IC LI/BATTERY MANAGEMENT 38TSSOP
其它有关文件: Automotive Product Guide
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
功能: 电池监控器
电池化学: 锂离子(Li-Ion)
电源电压: 6 V ~ 72 V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 38-TFSOP(0.173",4.40mm 宽)
供应商设备封装: 38-TSSOP
包装: 带卷 (TR)
12-Channel, High-Voltage
Battery-Pack Fault Monitors
Table 2. Undervoltage Threshold Selection
THRESHOLD (V)
Disabled
1.6
1.8
2.0
2.2
2.4
2.6
2.8
UVSEL2
0
0
0
0
1
1
1
1
UNDERVOLTAGE SELECTION
UVSEL1
0
0
1
1
0
0
1
1
UVSEL0
0
1
0
1
0
1
0
1
selection is sensed and stored at power-up and any
subsequent change to the input pin status is ignored.
Internal Linear Regulator
The MAX11080/MAX11081 have an internal linear regula-
tor for generating the internal supply from DCIN (Figure
11). The regulator can accept a supply voltage on the
DCIN pin from +6.0V to +72V, which it regulates to 3.3V
to run the voltage-detection system, control logic, and
low-side alarm-pulse interface. When the SHDN pin is not
active and a sufficient voltage is applied to DCIN, the out-
put of the regulator becomes active. The regulator is
paired with a power-on-reset (POR) circuit that senses its
output voltage and holds the MAX11080/MAX11081 in a
reset state until the internal supply has reached a sustain-
able threshold of +3.0V (±5%). The internal comparators
have built-in hysteresis that can reject noise on the supply
line. Because secondary metal batteries are never fully
discharged to 0V, the MAX11080/MAX11081 are
designed for a hot-swap insertion of the battery cells.
Once the POR threshold is reached, approximately 1ms
later the internal reset signal disables, the internal oscilla-
tor starts, and the charge pump begins operating. The
charge pump reaches regulation in approximately 3ms.
The MAX11080/MAX11081 associated with the top mod-
ule in the battery pack are identified as detailed in the
TOPSEL Function section. This is followed by a self-test of
the overvoltage comparators and detection of the number
of cells connected. At this time in the power-on
sequence, the MAX11080/MAX11081 are ready for oper-
ation. When the charge pump achieves regulation of 3.3V
between VDD U and GND U , it switches to a standby mode
until the voltage drops by about 35mV. The specified
accuracy and full operation of the MAX11080/MAX11081
DCIN
+6.0V TO +72V
LINEAR
REGULATOR
INTERNAL +3.3V
V AA
REGULATOR
GND U
SHDN
DIE OVERTEMPERATURE
DETECT
ENABLE
BANDGAP
REFERENCE
CHARGE
PUMP
CHARGE-PUMP
ENABLE
2.6V
VDD U
CP POR
COMPARATOR
AGND
POR THRESHOLD
+3.0V ± 5%
POR
COMPARATOR
35mV
HYSTERESIS
+3.3V TO
GND U
CP_POR/
INTERNAL
POR/
VAA POR/
Figure 11. Internal Linear Regulator Block Diagram
16
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MAX11080IUU+T 功能描述:电池管理 12 Ch Hi Volt Batt Pack Fault Monitor RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
MAX11081GUU/V+ 功能描述:电池管理 12 Ch Hi Volt Batt Pack Fault Monitor RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
MAX11081GUU/V+T 功能描述:电池管理 12 Ch Hi Volt Batt Pack Fault Monitor RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
MAX11081GUU+ 功能描述:电池管理 12 Ch Hi Volt Batt Pack Fault Monitor RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel