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參數(shù)資料
| 型號(hào)： | RN5RL48AC-TR |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 2.5 V Phase Lock Loop DDR Clock Driver 40-VQFN -40 to 85 |
| 中文描述： | 4.8 V FIXED POSITIVE LDO REGULATOR, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁(yè)數(shù)： | 18/18頁(yè) |
| 文件大?。?/td> | 144K |
| 代理商： | RN5RL48AC-TR |
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)第16頁(yè)第17頁(yè)當(dāng)前第18頁(yè)
R
×
5RL
17
CURRENT BOOST CIRCUIT
Output current of 60mA or more can be obtained by
the current boost circuit constructed as shown in this cir-
cuit diagram.
CURRENT BOOST CIRCUIT WITH OVERCURRENT LIMIT CIRCUIT
A circuit for protecting Tr.1 from the destruction
caused by output short-circuit or overcurrent is shown in
this circuit diagram.
When the voltage reduction caused by the current ( aa
I
OUT
) which flows through R2 reaches Vbe2 of Tr.2 by
additionally providing the current boost circuit with Tr.2
and R2, Tr.2 is turned ON and the base current of Tr.1 is
increased, so that the output current is limited.
Current limit of Overcurrent Limit Circuit is obtained
as follows :
I
OUT
Vbe2/R2
CURRENT SOURCE
A current source with the structure as shown in this
circuit diagram can be used. Output Current I
OUT
is
obtained as follows :
I
OUT
= Vre*
SS
Take care that Output Current I
OUT
does not exceed
its allowable current.
*
1) Vreg : Set Output Voltage of R
×
5RL Series.
C2
GND
GND
GND
R
×
5RL
SERIES
V
OUT
V
OUT
C1
V
IN
V
IN
Tr.1
+
+
C2
GND
GND
GND
R
×
5RL
SERIES
V
OUT
V
OUT
C1
V
IN
V
IN
Tr.1
Tr.2
R1
R2
I
OUT
Vbe2
+
+
GND
R
×
5RL
SERIES
C1
V
IN
V
IN
R
I
OUT
I
SS
V
OUT
+
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| RN5RL48AC-TZ | 2.5 V Phase Lock Loop DDR Clock Driver 40-VQFN -40 to 85 |
| RN5RL49AC-RR | 2.5 V Phase Lock Loop DDR Clock Driver 40-VQFN -40 to 85 |
| RN5RL49AC-T1 | VOLTAGE REGULATOR |
| RN5RL49AC-T2 | VOLTAGE REGULATOR |
| RN5RL49AC-TL | VOLTAGE REGULATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RN5RL48AC-TZ | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VOLTAGE REGULATOR |
| RN5RL49A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Fixed Voltage Regulator |
| RN5RL49AA | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VOLTAGE REGULATOR |
| RN5RL49AA-RF | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VOLTAGE REGULATOR |
| RN5RL49AA-RR | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:VOLTAGE REGULATOR |
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