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参数资料
| 型号： | LTC6803IG-1#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 32/40页 |
| 文件大小： | 0K |
| 描述： | IC MONITOR BATT STACK 44-SSOP |
| 标准包装： | 2,000 |
| 功能： | 电池监控器，过压/欠压保护 |
| 电池化学： | 多化学成分，超级电容器 |
| 电源电压： | 4 V ~ 55 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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LTC6803-1/LTC6803-3
APPLICATIONS INFORMATION
For sensors that require higher drive currents, a buffer
op amp may be used as shown in Figure 17. Power for
the sensor is actually sourced indirectly from the V REG
pin in this case. Probe loads up to about 1mA maximum
are supported in this con?guration. Since V REF is shut-
down during the LTC6803 idle and shutdown modes, the
thermistor drive is also shut off and thus power dissipation
minimized. Since V REG remains always on, the buffer op
amp (LT6000 shown) is selected for its ultralow power
consumption (12μA).
LTC6803-1
V REG
V REF
V TEMP2
V TEMP1
NC
V –
+
–
LT6000
10k
10k
NTC
680313 F17
10k
10k
NTC
V REG
V REF
100k
100k
1μF
1μF
Y0
V CC
PROBE4
X2
Y2
PROBE3
X1
Y
PROBE2
X
Y3
PROBE1
4
8
1/2 LT6004
X3
INH
A
V EE
GND
B
+ 3
1
–
4
ExpandingProbeCount
As shown Figure 18, a dual 4:1 multiplexer is used to ex-
pand the general purpose V TEMP1 and V TEMP2 ADC inputs
to accept 8 different probe signals. The channel is selected
by setting the general purpose digital outputs GPIO1 and
GPIO2 and the resultant signals are buffered by sections
of the LT6004 micropower dual operational amplifier. The
probe excitation circuitry will vary with probe type and is
not shown here.
Another method of multiple sensor support is possible
without the use of any GPIO pins. If the sensors are PN
diodes and several used in parallel, then the hottest diode
will produce the lowest forward voltage and effectively
establish the input signal to the V TEMP input(s). The hottest
diode will therefore dominate the readout from the V TEMP
inputs that the diodes are connected to. In this scenario,
the specific location or distribution of heat is not known,
but such information may not be important in practice.
Figure 19 shows the basic concept. In any of the sensor
configurations shown, a full-scale cold readout would be
an indication of a failed open-sensor connection to the
LTC6803.
LTC6803-1
100k 100k
V TEMP2
V TEMP1
NC
V – NTC NTC
Figure 17. Buffering V REF for Higher Current Sensors
PROBE8
PROBE7
PROBE6
PROBE5
1 16
2 15
3 14
6 5 4 13
5 74HC4052 12
Y1 X0
6 11
7 7 10
8 9
CPO2
GPO1
V REG
V TEMP2
1/2 LT6004 8
680313 F18
V TEMP1 2
1μF
V –
Figure 18. Expanding Sensor Count with Multiplexing
200k
LTC6803-1
V REG 200k
V REF
V TEMP2
V TEMP1
NC
V –
680313 F19
Figure 19. Using Diode Sensors as Hot Spot Detectors
680313 F16
Figure 16. Driving Thermistors Directly from V REF
680313fa
32
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC6803IG-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 |
| LTC6803IG-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) |
| LTC6803IG-2PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Multicell Battery Stack Monitor |
| LTC6803IG-3#3ZZPBF | 制造商:Linear Technology 功能描述:Battery Monitoring Li-Ion 44-Pin SSOP |
| LTC6803IG-3#3ZZTRPBF | 制造商:Linear Technology 功能描述:Battery Monitoring Li-Ion 44-Pin SSOP T/R |
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