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參數資料
| 型號： | MC34164 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Single Output LDO, 250mA, Adj.(2.5 to 5.5V), Low Noise, Fast Transient Response 5-SOT-23 |
| 中文描述： | 微功耗欠壓檢測電路 |
| 文件頁數： | 6/8頁 |
| 文件大小： | 150K |
| 代理商： | MC34164 |
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.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MC34164_09 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Micropower Undervoltage Sensing Circuits |
| MC34164-3 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:3.0 A 1.0 MHz Fully Integrated DDR Switch-Mode Power Supply |
| MC341643DM | 制造商:Microsemi Corporation 功能描述:Volt Supervisor Supply 3.3V 8-Pin SOIC |
| MC34164-3DM | 功能描述:IC UNDERVOLTAGE SENSING 3V 8SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 監控器 系列:- 標準包裝:1 系列:- 類型:簡單復位/加電復位 監視電壓數目:1 輸出:開路漏極或開路集電極 復位:低有效 復位超時:標準傳輸延遲為 60 µs 電壓 - 閥值:3V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱:LM8364BALMF30DKR |
| MC341643LP | 制造商:Microsemi Corporation 功能描述:Volt Supervisor Supply 3.3V 3-Pin TO-92 |
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