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參數(shù)資料
| 型號： | R5421N152F-TR |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 電源管理 |
| 英文描述： | Li-lon BATTERY PROTECTOR |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封裝： | SOT-23, 6 PIN |
| 文件頁數(shù)： | 17/19頁 |
| 文件大?。?/td> | 147K |
| 代理商： | R5421N152F-TR |
Rev.1.11
- 17 -
I
TYPICAL APPLICATION
R5421NxxxC
2
4
6
1
5
3
R1
100
R2
1k
C3
0.01
μ
F
C2
0.1
μ
F
C1
0.1
μ
F
I
APPLICATION HINTS
R1 and C1 will stabilize a supply voltage to the R5421NxxxC. A recommended R1 value is less than 1k
.
A larger value of R1 leads higher detection voltage, makes some errors, because of shoot through current flowed in the
R5421NxxxC.
R2 and C2 will stabilize a V- pin voltage. The resetting from over-discharge with connecting a charger possibly be disabled by
larger value of R2. Recommended value is less than 1 k
.
After an over-charge detection even connecting battery pack to a system probably could not allow a system to draw load
current by a larger R2C2 time constant in the C version.
Recommended C2 value is less than 1μF.
R1 and R2 can operate also as a part of current limit circuit against for setting cell reverse direction or for applying excess
charging voltage to the R5421NxxxC, battery pack, while smaller
R1 and R2 may cause a power consumption over rating of power dissipation of the R5421NxxxC and a total of 'R1+R2' should
be more than 1k
.
The time constants R1C1 or R2C2 must have a relations as below:
R1C1
≤
R2C2
Because in case that R1C1, time constant for V
DD
pin ,would be larger than R2C2, time constant for V- pin, then the
R5421NxxxC might be into a standby mode after detecting excess current or short circuit current.
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| R5422N111E | Li-lon BATTERY PROTECTOR |
| R5422N111E-TR | Li-lon BATTERY PROTECTOR |
| R5422N112C | Li-lon BATTERY PROTECTOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R5422N111C | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Li-lon BATTERY PROTECTOR |
| R5422N111C-TR | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Li-lon BATTERY PROTECTOR |
| R5422N111E | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Li-lon BATTERY PROTECTOR |
| R5422N111E-TR | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Li-lon BATTERY PROTECTOR |
| R5422N112C | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Li-lon BATTERY PROTECTOR |
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