- 您现在的位置：买卖IC网 > PDF目录299838 > R1224N182H-TR (RICOH COMPANY LTD) 0.05 A SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO5 PDF资料下载
参数资料
| 型号： | R1224N182H-TR |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | 稳压器 |
| 英文描述： | 0.05 A SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封装： | SOT-23, 5 PIN |
| 文件页数： | 5/42页 |
| 文件大小： | 870K |
| 代理商： | R1224N182H-TR |
第1页第2页第3页第4页当前第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页
R1224N
TIMING CHART
VOUT Set Output Voltage
UVLO Voltage
Input Voltage
Rising Time
UVLO Reset
VOUT Set Output Voltage
Protection Circuit Delay Time
VOUT Set Output
Voltage
VIN
CE
EXT
VOUT
VOUT Set Output
Voltage
Stable
Operation
Stable
Operation
Stable
Operation
Soft Start
Reset Protection
The timing chart shown above describes the changing process of input voltage rising, stable operating,
operating with large current, stable operating, input voltage falling, input voltage recovering, and stable
operating.
First, until when the input voltage (VIN) reaches UVLO voltage, the circuit inside keeps the condition of
pre-standby.
Second, after VIN becomes beyond the UVLO threshold, soft-start operation starts, when the soft-start
operation finishes, the operation becomes stable.
If too large current flows through the circuit because of short or other reasons, EXT signal ignores that during
the delay time of protection circuit. (The current value depends on the circuit.)
After the delay time passes, reset protection works, or EXT signal will be “H”, then output will turn off, then
soft-start operation starts. After the soft-start operation, EXT signal will be “L”, but if the large current is still
flowing, after the delay time of protection circuit passes, reset protection circuit will work again, the operation will
be continuously repeated unless the cause of large current flowing is not removed.
Once the cause of the large current flowing is removed, within the delay time, the operation will be back to the
stable one.
If the timing for release the large current is in the protection process, the operation will be back to the normal
one after the soft-start operation.
If the VIN becomes lower than the set VOUT, that situation is same as large current condition, so protection
circuit may be ready to work, therefore, after the delay time of protection circuit, EXT will be “H”.
Further, if the VIN is lower than UVLO voltage, the circuit inside will be stopped by UVLO function.
After that, if VIN rises, until when the VIN reaches UVLO voltage, the circuit inside keeps the condition of
spre-standby.
13
Then after VIN becomes beyond the UVLO threshold, soft-start operation starts, when the soft-start operation
finishes, the operation becomes stable.
相关PDF资料 |
PDF描述 |
|---|---|
| R1224N252E-TR | 0.05 A SWITCHING CONTROLLER, 360 kHz SWITCHING FREQ-MAX, PDSO5 |
| R1224N252F-TR | 0.05 A SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO5 |
| R1224N262F-TR | 0.05 A SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO5 |
| R1224N502H-TR | 0.05 A SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO5 |
| R1224N262E-TR | 0.05 A SWITCHING CONTROLLER, 360 kHz SWITCHING FREQ-MAX, PDSO5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| R122BA19.38.62 | 功能描述:12 AWG 2C 19/25 BC .009" PVC RoHS:是 类别:线缆，导线 >> 多芯导线 系列:* 标准包装:1 系列:* |
| R122BA19.40.62 | 功能描述:12 AWG 2C 19/25 BC .009" PVC RoHS:是 类别:线缆，导线 >> 多芯导线 系列:* 标准包装:1 系列:* |
| R122BA19.41.01 | 功能描述:2C/12 19/.0185BC UNSH CL3R RoHS:是 类别:线缆，导线 >> 多芯导线 系列:* 标准包装:1 系列:* |
| R122BA19.41.06 | 功能描述:12 AWG 2C 19/25 BC .009" PVC RoHS:是 类别:线缆，导线 >> 多芯导线 系列:* 标准包装:1 系列:* |
| R122BA19.41.62 | 功能描述:2C/12 19/.0185BC UNSH CL3R RoHS:是 类别:线缆，导线 >> 多芯导线 系列:* 标准包装:1 系列:* |
发布紧急采购，3分钟左右您将得到回复。