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參數(shù)資料
| 型號： | RHFL4913KPA-01V |
| 廠商： | 意法半導體 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 5.0 AMP POSITIVE VOLTAGE REGULATOR |
| 中文描述： | 5.0放大器正電壓穩(wěn)壓器 |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 326K |
| 代理商： | RHFL4913KPA-01V |
RHFL4913 ADJUSTABLE VERSION
Device description
7/16
4
Device description
The RHFL4913 Adjustable contains a PNP type power element controlled by a signal resulting from
amplified comparison between the internal temperature compensated Band-Gap and the fraction of the
desired Output Voltage value obtained from an external resistor divider bridge. The device is protected by
several functional blocks.
4.1
ADJ Pin
The Load output voltage feed-back comes from an external divider resistor bridge middle point connected
to ADJ pin (allowing all possible output voltage settings as per User’s desire) established between Load
terminals.
4.2
INHIBIT ON-OFF Control
By setting INHIBIT pin TTL-High, the Device switches off the Output Current and Voltage. Device is ON
when INHIBIT pin is set Low. Since INHIBIT pin is internally pulled down, it can be left floating in case
Inhibit function is not utilized.
4.3
Overtemperature protection
A temperature detector internally monitors the power element junction temperature. The Device goes
OFF when approx. 175°C are reached, returning to ON mode when back to approx. 40°C. Combined with
other protection blocks, it protects the Device from destructive junction temperature excursions in all load
conditions. It is worth noting that when internal temperature detector reaches 175°C, the active power
element can be at 225°C: Extensive operation under these conditions far exceeds Maximum Operation
Ratings and Device reliability cannot be granted.
4.4
Overcurrent protection
An internal non-fold back Short-Circuit limitation is set with I
SHORT
> 3.8A (V
O
is 0V). This value can be
downward modified by an external resistor connected between I
SC
and V
I
pins, with a typical value range
of 10k
to 200k
. To keep excellent V
O
regulation, it is necessary to set I
SHORT
1.6 times greater than the
maximum desired application I
O
. When I
O
reaches I
SHORT
– 300mA, the current limitor overrules
Regulation and V
O
starts to drop and OCM flag is risen. When no current limitation adjustment is
required, I
SC
pin must be left unbiased (as it is in 3pin packages).
4.5
OCM pin
Goes Low when current limit starts to be active, otherwise V
OCM
= V
I
. It is buffered and can sink 10mA.
OCM pin is internally pulled-up by a 5 k
resistor.
4.6
Alternates to
RHFL4913 is recommended to replace all Industry Positive Regulators due to its exceptional Radiation
performance. To replace 3-terminal Industry devices, use RHFL4913 Fixed Voltage versions.
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| RHFL4913KPA-02V | 5.0 AMP POSITIVE VOLTAGE REGULATOR |
| RHFL4913KPA1 | 5.0 AMP POSITIVE VOLTAGE REGULATOR |
| RHFL4913KPA2 | 5.0 AMP POSITIVE VOLTAGE REGULATOR |
| RHFL4913SCA-01V | 5.0 AMP POSITIVE VOLTAGE REGULATOR |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| RHFL4913KPA-02V | 制造商:STMicroelectronics 功能描述:REG LDO LIN ADJ POS 1.19V TO 9.3V 2A 16PIN CFLAT - Bulk 制造商:STMicroelectronics 功能描述:VREG - Bulk |
| RHFL4913KPA1 | 制造商:STMicroelectronics 功能描述:LDO Regulator Pos 1.19V to 9.3V 2A 16-Pin CFLAT 制造商:STMicroelectronics 功能描述:REG LDO LIN ADJ POS 2A 16PIN CFLAT - Bulk |
| RHFL4913KPA2 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Rad-hard adjustable positive voltage regulator |
| RHFL4913S0A-03V | 制造商:STMicroelectronics 功能描述:SPACE LEVEL: - Bulk |
| RHFL4913S0A1 | 制造商:STMicroelectronics 功能描述:RHFL4913S0A1 - Bulk |
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