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L6983NQTR中文資料
L6983NQTR數(shù)據(jù)手冊規(guī)格書PDF詳情
Features
Designed for iso-buck topology
3.5 V to 38 V operating input voltage
Primary output voltage regulation / no optocoupler required
4.5 A source / sink peak primary current capability
Peak current mode architecture in forced PWM operation
390 ns blanking time
200 kHz to 1 MHz programmable switching frequency. Stable with low ESR
capacitor: min 2 μF
Internal compensation network
2 μA shutdown current
Internal soft-start
Enable
Overvoltage protection
Output voltage sequencing
Thermal protection
Optional spread spectrum for improved EMC
Power Good
Synchronization to external clock
QFN16 (3x3 mm) package
Applications
Isolated IGBT/SiC MOSFET gate drive supply
OBC (On-board charger) for HEV/EV
Electric traction systems
Description
The L6983I is a device specifically designed for isolated buck topology. The primary
output voltage can be accurately adjusted, whereas the isolated secondary output is
derived by using a given transformer ratio. No optocoupler is required. The primary
sink capability up to -4.5 A (even during soft-start) allows a proper energy transfer
to the secondary side as well as enabling a tracked soft-start of the secondary
output. The control loop is based on a peak current mode architecture and the device
operates in forced PWM. The 390 ns blanking time filters oscillations, generated by
the transformer leakage inductance, making the solution more robust.
The compact QFN16 3x3 mm package and the internal compensation of the L6983I
help minimize design complexity and size.
The switching frequency can be programmed in the 200 kHz - 1 MHz range with
optional spread spectrum for improved EMC. The EN pin provides enable/disable
functionality.
The typical shutdown current is 2 μA when disabled. As soon as the EN pin is pulled
up the device is enabled and the internal 1.3 ms soft-start takes place. The L6983I
features Power Good open collector that monitors the FB voltage. Pulse by pulse
current sensing on both power elements implements an effective constant current
protection and thermal shutdown prevents thermal run-away.
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
STMICROELECTRONICS |
21+ |
NA |
3000 |
只做原裝,一定有貨,不止網(wǎng)上數(shù)量,量多可訂貨! |
|||
STMICROELECTRONICS |
24+ |
con |
348931 |
優(yōu)勢庫存,原裝正品 |
|||
STMicroelectronics |
24+ |
10-VDFPN(3x3) |
66800 |
原廠授權(quán)一級代理,專注汽車、醫(yī)療、工業(yè)、新能源！ |
|||
STMicroelectronics |
24+ |
10-VDFPN(3x3) |
65200 |
一級代理/放心采購 |
|||
ST/意法半導(dǎo)體 |
25+ |
原廠封裝 |
10280 |
原廠授權(quán)代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源！ |
|||
ST/意法半導(dǎo)體 |
25+ |
原廠封裝 |
9999 |
||||
ST/意法半導(dǎo)體 |
24+ |
QFN-16 |
10000 |
十年沉淀唯有原裝 |
|||
ST/意法半導(dǎo)體 |
25+ |
原廠封裝 |
10280 |
||||
ST(意法半導(dǎo)體) |
2447 |
QFN-16 |
105000 |
3000個(gè)/圓盤一級代理專營品牌!原裝正品,優(yōu)勢現(xiàn)貨, |
|||
ST/意法 |
21+ |
N/A |
2000 |
優(yōu)勢供應(yīng) 實(shí)單必成 可開增值稅13點(diǎn) |
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Datasheet數(shù)據(jù)表PDF頁碼索引
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STMicroelectronics 意法半導(dǎo)體集團(tuán)
中文資料: 162323條
意法半導(dǎo)體 (STMicroelectronics) 成立于1987年，總部位于瑞士日內(nèi)瓦和法國巴黎，是一家全球領(lǐng)先的半導(dǎo)體公司。意法半導(dǎo)體專注于設(shè)計(jì)、制造和銷售各種半導(dǎo)體解決方案，產(chǎn)品廣泛應(yīng)用于汽車、工業(yè)、消費(fèi)電子、通信等領(lǐng)域。 意法半導(dǎo)體的產(chǎn)品包括微控制器、模擬集成電路、功率半導(dǎo)體、傳感器等。公司擁有多個(gè)研發(fā)中心和生產(chǎn)基地，致力于技術(shù)創(chuàng)新和研發(fā)投入。意法半導(dǎo)體在全球范圍內(nèi)擁有廣泛的客戶群和合作伙伴，為客戶提供高品質(zhì)的產(chǎn)品和解決方案。 公司的使命是通過半導(dǎo)體技術(shù)推動(dòng)智能化和可持續(xù)發(fā)展，助力客戶取得成功。意法半導(dǎo)體不僅注重商業(yè)成功，還注重社會(huì)責(zé)任、環(huán)境保護(hù)和可持續(xù)經(jīng)營。企業(yè)價(jià)值觀包括創(chuàng)新、尊重
