HT7181 Description：
The HT7181 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 HT7181 has wide input voltage range from 2.7 V to 16 V to support applications with single cell, two cell Lithium batteries and 12V lead-acid batteries. The device has 14A switch current capability and can provide an output voltage up to 16.8V.
The HT7181 also implements a programmable soft-start function and an adjustable switching peak current limit function. HT7181 integrates two modes with different tr/tf to balance different requirements of EMI and efficiency.
In addition, the device provides 18V output overvoltage protection, and thermal shutdown protection.
HT7181 Features:
*Input voltage range: 2.7V to 16V
*Output voltage range: up to 16.8V
*Internal Fixed PWM frequency: 360kHz
*Programmable switch peak current limit: up to 14A
*High Efficiency
94% (VIN = 7.2V, VOUT=9.3V, IOUT =1.5A)
90% (VIN = 7.2V, VOUT=9.3V, IOUT =7A)
93% (VIN = 7.2V, VOUT=12V, IOUT =1.5A)
90% (VIN = 7.2V, VOUT=12V, IOUT =5.5A)
90% (VIN = 3.6V, VOUT=12V, IOUT =1A)
85% (VIN = 3.6V, VOUT=12V, IOUT =2.2A)
*1.0μA current consumption during shutdown
*Two modes with different tr/tf for EMI solution
*Programmable soft start
*Output overvoltage protection (at 18V), thermal shutdown protection
*Pb-free Packages,SOP8L-PP
HT7181 Applications:
Wireless/ Speakers
Portable Speakers
Power Bank
Chargers
Power Interface (USB Type-C, Thunderbolt)
POS Terminal
Tablet PC/Note Book
HT7181 Typical Application：
HT7181 Ordering Information：
HT7181 Terminal Configuration：
|
Ordering Number
|
Package Type
|
Marking
|
Operating Temperature Range
|
Shipping Package / MOQ
|
|
HT7181SPER |
SOP8L-PP |
HT7181 YYYMAAB1 |
-40℃～85℃ |
Tape and Reel / 2500pcs |
|
HT7181SPET |
SOP8L-PP |
HT7181 YYYMAAB |
-40℃～85℃ |
Tube / 100pcs |
HT7181 Terminal Configuration：
HT7181 Terminal Function：
HT7181 Typical Circuit Diagram：
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