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參數(shù)資料
| 型號： | E-L6917BD |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | ROHS COMPLIANT, SO-28 |
| 文件頁數(shù)： | 16/33頁 |
| 文件大?。?/td> | 465K |
| 代理商： | E-L6917BD |
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L6917B
– Single Supply: In this case JP6 has to be completely shorted. The device is supplied with the same rail
that is used for the conversion. With an additional zener diode DZ1 a lower voltage can be derived to
supply the mosfets driver if Logic level mosfet are used. In this case JP1 must be left open so that the
HS driver is supplied with VIN-VDZ1 through BOOTx and JP2 must be shorted to the left to use VIN or to
the right to use VIN-VDZ1 to supply the LS driver through VCCDR pin. Otherwise, JP1 must be shorted
and JP2 can be freely shorted in one of the two positions.
– Double Supply: In this case VCC supply directly the controller (12V) while VIN supplies the HS drains for
the power conversion. This last one can start indifferently from the 5V bus (Typ.) or from other buses
allowing maximum flexibility in the power conversion. Supply for the mosfet driver can be programmed
through the jumpers JP1, JP2 and JP6 as previously illustrated. JP6 selects now V
CC or VIN depending
on the requirements.
Some examples are reported in the following Figures 18 and 19.
Figure 18. Jumpers configuration: Double Supply
Figure 19. Jumpers configuration: Single Supply
Vin = 5V
GND in
DZ1
JP2
JP1
Vcc = 12V
GNDcc
JP6
Vcc = 12V
HS Drains = 5V
HS Supply = 5V
VCCDR (LS Supply) = 5V
Vin = 5V
GND in
DZ1
JP2
JP1
Vcc = 12V
GNDcc
JP6
Vcc = 12V
HS Drains = 5V
HS Supply = 12V
VCCDR (LS Supply) = 12V
(a) VCC = 12V; VBOOTx = VCCDR = VIN = 5V
(b) VCC =VBOOTx = VCCDR =12V; VIN =5V
Vin = 12V
GND in
DZ1 6.8V
JP2
JP1
Vcc = Open
GNDcc
JP6
Vcc = 12V
HS Drains = 12V
HS Supply = 5.2V
VCC DR (LS Supply) = 12V
Vin = 12V
GNDin
DZ1
JP2
JP1
Vcc = Open
GNDcc
JP6
Vcc = 12V
HS Drains = 12V
HS Supp ly = 12V
VCCDR (LS Supply) = 12V
(a) VCC =VIN = VCCDR = 12V; VBOOTx = 5.2V
(b) VCC =VIN=VBOOTx = VCCDR = 12V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| E-L6917BDTR | 功能描述:DC/DC 開關(guān)控制器 Prog Dual-Phase Cont RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)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(fēng)格: 封裝 / 箱體:CPAK |
| E-L6919E | 功能描述:電流型 PWM 控制器 5-Bit Dual Ph Contlr RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| E-L6919ETR | 功能描述:電流型 PWM 控制器 5-Bit Dual Ph Contlr RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| E-L6920D | 功能描述:直流/直流開關(guān)轉(zhuǎn)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(guān)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(fēng)格:SMD/SMT |
| E-L6920DTR | 功能描述:直流/直流開關(guān)轉(zhuǎn)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(guān)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(fēng)格:SMD/SMT |
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