HT7179概述：
HT7179是一款高功率异步升压转换器，集成20mΩ功率开关管，为便携式系统提供高效的小尺寸解决方案。
HT7179具有2.7V至25V宽输入电压范围，可为采用单节或两节锂电池，或12V铅酸电池的应用提供支持。该器件具备15A开关电流能力，并且能够提供高达26.8V的输出电压。
HT7179还支持可编程的软启动，以及可调节的开关峰值电流限制。HT7179还支持两种不同的tr/tf，以适应不同的EMI和效率需求。
此外，该器件还提供有28V输出过压保护、和热关断保护。
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：
输入电压范围：2.7V-25V
输出电压范围：最高26.8V
固定开关频率：350kHz
可编程峰值电流：最高15A
高转换效率：
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)
低关断功耗，关断电流1uA
支持两种tr/tf模式，应对EMI挑战
可编程软启动
输出过压 (28V)、热关断等保护
ESOP16, QFN3×3.5-20L无铅封装
HT7179应用：
无线音箱
便携式音箱
移动电源
充电设备
USB TYPE-C 电源传输
拉杆音箱
平板电脑，笔记本电脑
POS机终端
HT7179 典型应用电路：
HT7179订购信息：
|
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引脚配置：
HT7179引脚说明：
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