- HT77221 HT77211 4.0V~30V输入,2A/1.2A同步降压变换器
- NS4117X 系列 外置 MOS 管开关降压型 LED 恒流控制器
- HT71663 13V,12A全集成同步升压转换器
- HT71763 20V,15A全集成同步升压转换器
- NS2160 同步开关型降压锂电池充电管理 IC
- HT7702 2.5~5.5V输入,2A同步降压变换器
- HT77231 4.0V~28V输入,3.5A同步降压变换器
- AT2401C 射频2.4GHzPA发射接收芯片
- HT3166 免电感滤波2×30W AB/D类音频功放
- HT81298 内置升压的10W立体声D类音频功放
- HT71778 实时音频信号跟踪的18V, 15A全集成同
- HT97226 160mW免输出耦合电容的立体声耳机放大器
- HT71782 20v 15a 同步升压芯片
- HT78621 60V输入,3.5A开关限流降压变换器
产片介绍:一 概述; LYF62001 is a high efficiency, synchronous bi-directional buck-boost charger with integrated fast charge protocols It is a comprehensive and flexib
┄┄┄详细介绍┄┄┄
一 概述;
LYF62001 is a high efficiency, synchronous bi-directional buck-boost charger with integrated fast charge protocols. It is a comprehensive and flexible buck-boost chargerplatform designed for most of fast charging applicationswith type-C port and PD protocol. It can be programmedtobuck charging, boost charging or buck-boost charging. LYF62001 provides I2C interface to communicatewithMCU, provides high voltage sensing for battery andBUSterminals, accurate rail-rail current sensing for batterycurrent, BUS current and USB ports currents. It alsoprovides high voltage blocking for CC1, CC2, DP, DMcommunication signals for all of the USB ports. LYF62001can work with a general MCU to provide a complete, powerful and flexible buck-boost charging systemfor all kinds of fast charge application such as power bank, battery packs, or portable energy cubic etc. In charging mode, it steps up or down the input voltagetoeffectively charge the batteries. LYF62001 supportstricklecharging, constant current (CC) charging andconstant voltage (CV) charging management. The chargingcurrent and charging voltage can be programmed by two12-bit DAC converters. The LYF62001 features I2C interface, so the user caneasily control the charging/discharging mode, andprogramcharging current, charging voltage, output voltage, andoutput current limits through I2C. It also monitors thestatusof USB ports and provides two NMOS gate driverstocontrol the power path independently. User canalsouseI2C to monitor the status of DC-DC, even thewholesystem. LYF62001 also provides VMON pin, through whichtheMCU can monitor VBUS, VBAT voltage, IBUS, IBATcurrent and the current of each port in real time. All thesefeatures simplify the system design and reduce BOMcost for any charging system. The LYF62001 supports under voltage protection, overvoltage protection, over current protection, short circuit protection and over temperature protections toensuresystem safety under different abnormal conditions.
二 特性
Bi-directional buck-boost charging and discharging with PD3.0, QC3.0, AFC, SCP, FCP, BC1.2 protocols integrated Support source role, sink role and DRP role for PD3.0
Charging management, including trickle charging, CC charging, CV charging and charging termination functions
Wide VBUS and VBAT voltage operation range up to 32V
Support up A port and C port, plug-in and plug-out detection
Support over current, over voltage protection for each port.
1 Cell to 6 Cells battery charge management
Support both 4.2V and 3.5V battery charging
Programmable switching frequency 150Khz and 300Khz
Programmable VINREG voltage to prevent overloading adaptors.
12-bit DAC converter to guarantee programmable current limit with10mA/step
12-bit DAC converter to guarantee programmable output voltage with 5mV/step
Programmable cable drop compensation
Integrate N-Gate drivers for USB ports
Battery voltage, BUS voltage and all ports voltage sensing on VMON pin
Battery current, BUS current and all ports current sensing on VMON pin
Comprehensive protection features in on-chip buck-boost controller
Supports pass-through operation when VBUS is close to VBAT
I2C interface is available to communicate with MCU
On-chip LDO to provide power for MCU
QFN5X5-40 package
三 应用
Power Bank Battery packs Li-ion Battery Charger Portable equipments General fast Charging Smart USB Sockets
上一篇:PL94056 High Efficiency, Synchronous bi-directional Buck-BoostCharger with integ
下一篇:最后一页