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參數資料
型號: MC34164SN-5T1
廠商: ON SEMICONDUCTOR
元件分類: 電源管理
英文描述: MICROPOWER UNDERVOLTAGE SENSING CIRCUITS
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝: PLASTIC, TSOP-5
文件頁數: 6/8頁
文件大小: 150K
代理商: MC34164SN-5T1
MC34164 MC33164
6
MOTOROLA ANALOG IC DEVICE DATA
Figure 14. Low Voltage Microprocessor Reset With Additional Hysteresis
(MC3X164–5 Shown)
Power
Supply
1.2 Vref
Microprocessor
Circuit
2 (2)
RL
1 (1)
3 (4)
Reset
Comparator hysteresis can be increased with the addition of resistor RH. The hysteresis equation has been simplified and does not account for the change of input current
Iin as Vin crosses the comparator threshold (Figure 8). An increase of the lower threshold
Vth(lower) will be observed due to Iin which is typically 10
μ
A at 4.3 V. The
equations are accurate to
±
10% with RH less than 1.0 k
and RL between 4.3 k
and 43 k
.
VH
4.3 RH
RL
RH
MC3X164–5
Iin
Vin
Test Data
VH
(mV)
Vth
(mV)
RH
(
)
RL
(k
)
60
103
123
160
155
199
280
262
306
357
421
530
0
1.0
1.0
1.0
2.2
2.2
2.2
4.7
4.7
4.7
4.7
4.7
0
100
100
100
220
220
220
470
470
470
470
470
43
10
6.8
4.3
10
6.8
4.3
10
8.2
6.8
5.6
4.3
+ 0.06
Vth(lower)
10 RH x 10– 6
where: RH
1.0 k
43 k
RL
4.3 k
Figure 15. Voltage Monitor
Figure 16. Solar Powered Battery Charger
Figure 17. MOSFET Low Voltage Gate Drive Protection Using the MC3X164–5
1.2 Vref
2 (2)
270
1 (1)
3 (4)
Power
Supply
1.2 Vref
2 (2)
1.0 k
1 (1)
3 (4)
1.2 Vref
2 (2)
1 (1)
3 (4)
Solar
Cells
RL
MTP3055EL
MC3X164–5
VCC
4.3V
Overheating of the logic level power MOSFET due to insufficient
gate voltage can be prevented with the above circuit. When the
input signal is below the 4.3 V threshold of the MC3X164–5, its
output grounds the gate of the L2 MOSFET.
相關PDF資料
PDF描述
MC33164D-3R2G MICROPOWER UNDERVOLTAGE SENSING CIRCUITS
MC34164D-3R2 MICROPOWER UNDERVOLTAGE SENSING CIRCUITS
MC34164D-3R2G MICROPOWER UNDERVOLTAGE SENSING CIRCUITS
MC34164D-5G MICROPOWER UNDERVOLTAGE SENSING CIRCUITS
MC34164D-5R2 MICROPOWER UNDERVOLTAGE SENSING CIRCUITS
相關代理商/技術參數
參數描述
MC34164SN-5T1G 功能描述:監控電路 4.27V UnderVoltage Sensing Circuit RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲(典型值):10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MC34165 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:POWER SWITCHING REGULATORS
MC34165DW 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:POWER SWITCHING REGULATORS
MC34165P 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:POWER SWITCHING REGULATORS
MC34166 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:POWER SWITCHING REGULATORS
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