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參數(shù)資料
| 型號： | L6919E |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO28 |
| 封裝： | SO-28 |
| 文件頁數(shù)： | 31/33頁 |
| 文件大?。?/td> | 644K |
| 代理商： | L6919E |
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Obsolete
Product(s)
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Product(s)
7/33
L6919E
17
OSC/INH
FAULT
Oscillator pin.
It allows programming the switching frequency of each channel: the equivalent switching
frequency at the load side results in being doubled.
Internally fixed at 1.24V, the frequency is varied proportionally to the current sunk (forced) from
(into) the pin with an internal gain of 6kHz/
A (See relevant section for details). If the pin is not
connected, the switching frequency is 150kHz for each channel (300kHz on the load).
The pin is forced high (5V Typ.) when an Over/Under Voltage is detected; to recover from this
condition, cycle VCC.
Forcing the pin to a voltage lower than 0.6V, the device stop operation and enter the inhibit
state.
18-22
VID4-0
Voltage IDentification pins.
Internally pulled-up, connect to GND to program a ‘0’ while leave floating to program a ‘1’.
They are used to program the output voltage as specified in Table 1 and to set the PGOOD,
OVP and UVP thresholds.
The device automatically regulates 25mV higher than the HAMMER DAC avoiding the use of
any external set-up resistor.
23
PGOOD
This pin is an open collector output and is pulled low if the output voltage is not within the above
specified thresholds and during soft start. It cannot be pulled-up above 5V.
If not used may be left floating.
24
BOOT2
Channel 2 HS driver supply. This pin supplies the relative high side driver.
Connect through a capacitor (100nF typ.) to the PHASE2 pin and through a diode to VCC
(cathode vs. boot).
25
UGATE2
Channel 2 HS driver output.
A little series resistor helps in reducing device-dissipated power.
26
PHASE2
Channel 2 HS driver return path. It must be connected to the HS2 mosfet source and provides
the return path for the HS driver of channel 2.
27
LGATE2
Channel 2 LS driver output.
A little series resistor helps in reducing device-dissipated power.
28
PGND
LS drivers return path.
This pin is common to both sections and it must be connected through the closest path to the
LS mosfets source pins in order to reduce the noise injection into the device.
PIN FUNCTION (continued)
N
Name
Description
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PDF描述 |
|---|---|
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| L6920D | 1.2 A SWITCHING REGULATOR, PDSO8 |
| L6920 | 1.2 A SWITCHING REGULATOR, PDSO8 |
| L6924D013TR | 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC16 |
| L6926D | 1.4 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L6919ETR | 功能描述:DC/DC 開關控制器 5-Bit Dual Ph Contlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| L-692 | 制造商:RHOMBUS-IND 制造商全稱:Rhombus Industries Inc. 功能描述:Common Mode Inductor |
| L6920 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER |
| L6920D | 功能描述:直流/直流開關轉換器 0.6 to 5.5V Step-Up RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| L6920DB | 功能描述:直流/直流開關轉換器 Synchronous Rectifer Step Up Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
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