- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄297167 > R5101G005A (RICOH COMPANY LTD) Microprocessor power management with Watchdog Timer PDF資料下載
參數(shù)資料
| 型號(hào)： | R5101G005A |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 電源管理 |
| 英文描述： | Microprocessor power management with Watchdog Timer |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封裝： | 0.65 MM PITCH, SSOP-8 |
| 文件頁(yè)數(shù)： | 16/16頁(yè) |
| 文件大?。?/td> | 233K |
| 代理商： | R5101G005A |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)當(dāng)前第16頁(yè)
R5101G
9
TYPICAL APPLICATION
R5101GxxxSeries
con.
SCK
CD
CTW
VDD
RESET
CE
GND
VOUT
RESET
DOUT
510k
1
F
1
F
CW(0.01
F)
CD(0.001
F)
VDD
TECHNICAL NOTES
Use a 0.01F or more value of an external capacitor, CW for setting watchdog and reset time-out periods.
Use 1F or 2.2F capacitor between VDD and GND, and between VOUT and GND and make its wiring as
short as possible.
Make VDD and GND lines sufficient.
Power noise may a cause of incorrect operation of the watchdog timer, because the built-in detector
supervises the built-in regulator output, therefore the noise may be detected.
If the capacitance for CTW pin is too large, pick-up noise may be result.
To avoid the mis-operation, during watchdog timer monitoring time, there is some ignoring time against
clock pulse. Therefore, during the ignoring time, input clock pulse (rising edge trigger) is ignored. The ignoring
time is approximately as follows:
1) The time interval for VCTW pin voltage from VREF2H to (VREF2H-VREF2H/20)
2) The time interval for VCTW pin voltage from VREF2L+VREF2L/20 to VREF2L
* If an equal or less than 100us-width "L" pulse is input to the CE pin, the error reset may output. The equal or less than
100us width "L" pulse caused by some noise or something against the CE pin must be avoided.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| R5106N311C-TR | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO6 |
| R5106N361C-TR | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO6 |
| R5106N271A-TR | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO6 |
| R5106N231C-TR | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO6 |
| R5106N301A-TR | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO6 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R5101GXXXA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Power Management ICs |
| R5102B | 制造商:Electro-Term/Hollingsworth 功能描述: |
| R5102V | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:LDO Regulators with a Watchdog Timer |
| R5102V001A | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:LDO Regulators with a Watchdog Timer |
| R5102VXXXA | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:Power Management ICs |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。