HT7179概述：
HT7179是一款高功率異步升壓轉(zhuǎn)換器，集成20mΩ功率開(kāi)關(guān)管，為便攜式系統(tǒng)提供高效的小尺寸解決方案。
HT7179具有2.7V至25V寬輸入電壓范圍，可為采用單節(jié)或兩節(jié)鋰電池，或12V鉛酸電池的應(yīng)用提供支持。該器件具備15A開(kāi)關(guān)電流能力，并且能夠提供高達(dá)26.8V的輸出電壓。
HT7179還支持可編程的軟啟動(dòng)，以及可調(diào)節(jié)的開(kāi)關(guān)峰值電流限制。HT7179還支持兩種不同的tr/tf，以適應(yīng)不同的EMI和效率需求。
此外，該器件還提供有28V輸出過(guò)壓保護(hù)、和熱關(guān)斷保護(hù)。
The HT7179 is a high-power density, asynchronous boost converter with a 20mΩ power switch to provide a high efficiency and small size solution in portable systems.
The HT7179 has wide input voltage range from 2.7 V to 25 V to support applications with single cell, two cell Lithium batteries and 12V lead-acid batteries. The device has 15A switch current capability and can provide an output voltage up to 26.8V.
The HT7179 also implements a programmable soft-start function and an adjustable switching peak current limit function. HT7179 integrates two modes with different tr/tf to balance different requirements of EMI and efficiency.
In addition, the device provides 28V output overvoltage protection, and thermal shutdown protection.
HT7179特性：
輸入電壓范圍：2.7V-25V
輸出電壓范圍：最高26.8V
固定開(kāi)關(guān)頻率：350kHz
可編程峰值電流：最高15A
高轉(zhuǎn)換效率：
95% (PVIN = 12V, VOUT=25V, IOUT =2A)
94% (PVIN = 12V, VOUT=25V, IOUT =4.5A)
93% (PVIN = 7.2V, VOUT=12V, IOUT =1.5A)
90% (PVIN = 7.2V, VOUT=12V, IOUT =5A)
96% (PVIN = 12V, VOUT=18V, IOUT =1.5A)
95% (PVIN = 12V, VOUT=18V, IOUT =6A)
低關(guān)斷功耗，關(guān)斷電流1uA
支持兩種tr/tf模式，應(yīng)對(duì)EMI挑戰(zhàn)
可編程軟啟動(dòng)
輸出過(guò)壓 (28V)、熱關(guān)斷等保護(hù)
ESOP16, QFN3×3.5-20L無(wú)鉛封裝
HT7179應(yīng)用：
無(wú)線音箱
便攜式音箱
移動(dòng)電源
充電設(shè)備
USB TYPE-C 電源傳輸
拉桿音箱
平板電腦，筆記本電腦
POS機(jī)終端
HT7179 典型應(yīng)用電路：
HT7179訂購(gòu)信息：
|
Ordering Number
|
Package Type
|
Marking
|
Operating Temperature Range
|
Shipping Package / MOQ
|
|
HT7179SPER
|
ESOP16
|
HT7179
YYYMAAB1
|
-40℃～85℃
|
Tape and Reel / 2500pcs |
|
HT7179SPET
|
ESOP16
|
HT7179
YYYMAAB
|
-40℃～85℃
|
Tube / 50pcs |
|
HT7179DNR
|
QFN3.5×4.5-20L
|
HT7179
YYYMAAB
|
-40℃～85℃
|
Tape and Reel / 5000PCS |
HT7179引腳配置：
HT7179引腳說(shuō)明：
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