HT7181
Applications
- Wireless Speakers / Portable Speakers
- Power Bank, Chargers
- Power Interface (USB Type-C, Thunderbolt)
- POS Terminal
- Tablet PC / Notebook
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% ($V_{IN} = 7.2V, V_{OUT} = 9.3V, I_{OUT} = 1.5A$)
- 90% ($V_{IN} = 7.2V, V_{OUT} = 9.3V, I_{OUT} = 7A$)
- 93% ($V_{IN} = 7.2V, V_{OUT} = 12V, I_{OUT} = 1.5A$)
- 90% ($V_{IN} = 7.2V, V_{OUT} = 12V, I_{OUT} = 5.5A$)
- 90% ($V_{IN} = 3.6V, V_{OUT} = 12V, I_{OUT} = 1A$)
- 85% ($V_{IN} = 3.6V, V_{OUT} = 12V, I_{OUT} = 2.2A$)
- Low Power: 1.0µA current consumption during shutdown
- EMI Solution: Two modes with different $t_r/t_f$
- Soft Start: Programmable soft start
- Protection: Output overvoltage protection (at 18V), thermal shutdown protection
- Package: Pb-free SOP8L-PP
16.8V, 14A Boost Converter
TheHT7181is ahigh-powerdensity,asynchronousboost converter with a 20mQ power switch to provide a high efficiencyandsmallsizesolutioninportablesystems.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 switchcurrentcapabilityandcanprovideanoutputvoltage 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 EMl and efficiency. Inaddition,thedeviceprovides18Voutputovervoltage protection, and thermal shutdown protection.