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| 型號(hào)： | M61040FP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | Smart battery protection and monitoring IC |
| 中文描述： | 智能電池保護(hù)和監(jiān)測(cè)集成電路 |
| 文件頁(yè)數(shù)： | 14/25頁(yè) |
| 文件大?。?/td> | 181K |
| 代理商： | M61040FP |
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Smart battery protection and monitoring IC
M61040FP
Mitsubishi Electric
(14/25)
(3)
Over current detection circuit
The over current detection circuit is shown in Figure 8. This circuit is composed of comparator, reference
voltage and delay circuit.
It can be got high accuracy over current detection by adjusting detection voltage with sense resistor.
Microcomputer can detect the over current status through monitoring “CIN_1” pin.
Besides this block contains load-short detection circuit. This circuit detects load-short with VIN_12 pin and
protects faster than over current detection.
Figure 8.Over current detection circuit
(4)
Voltage regulator and
reference voltage
To Microcomputer
V
IN
12
DF OUT
CIN
Rsense
V
IN
10
V
IN
11
Vref1
+
Delay
circuit
Battery
Voltage regulator and reference circuit are
shown in Figure 9. Pch MOS transistor is
used for output driver.
The output voltage can be adjusted by
M61040 itself. So the external resistor is not
required.
NOTE:
There is a diode put between Vcc and
Vreg terminal to prevent the invert current
from damaging this IC when Vcc voltage is
higher than Vreg voltage. So please always
keep Vreg voltage lower than Vcc+0.3V.
Set a condenser on output to suppress input
changes or load changes.
ON/OFF
ON/OFF
VREF1
+
Vref
Vreg
M1
R
1
R
2
V
CC
Serial to Parallel conversion circuit
VREF2
+
M1
R
3
R
4
Figure 9 Voltage regulator circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M61041FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-Battery Version, No Reset Pin |
| M61042FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-Battery Version, No Reset Pin |
| M61043FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:3-Battery Version, Reset Pin |
| M61044FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:3-Battery Version, Reset Pin |
| M61047FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Battery Protection Analog Front End (AFE) IC |
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