深圳市展嵘电子有限公司
有需要的上帝可联系小陈
ETA9085 单芯片三合一支持4颗电量灯，超低功耗，高输入耐压20V，TWS盒子-首选方案
ETA9085，是钰泰科技新出炉的超低功耗TWS充电仓芯片，带4颗电量灯，也是全球首颗全集成超低功耗芯片。
ETA9085功能非常完善：
其特点如下：1、输入耐压高达20V，适应快充和PD市场高耐压的要求；2、输出5V常开，待机功耗小于10uA，真正的超低功耗；3、充电电流灵活可调，1A，适用各种电芯；4、带EN使能控制，可以配合单片机做更多功能；5、常规4段电量显示；6、带充电NTC温度保护，更加安全可靠；7、ESOP封装简单易贴，DFN小封装节省空间，两种封装任选；8、输入过压、输出过流、短路保护、电池过充过放保护，所有保护齐全。
ETA9085 is an all-in-one solution for TWS charge
cradle. It includes a 20V single cell Li+ battery linear
charger, a 5V Boost synchronous converter with
true-shutoff function and a Fuel Gauge with LED
indication. The linear charger is fully integrated with
constant current (CC) / constant voltage (CV) control
module and a charge FET. It has a pre-charge
function for trickle charging a deeply discharged
battery and its fast charge current can be
programmed by an external resistor. In CV charge
stage, charging will be terminated when the charge
current drops to 1/10 of the programmed value. The
integrated low power 5V Boost converter is capable
of delivering 0.5A current at 5V output. It can be shut
down by pulling the ENBST pin low. The true shut
down feature disconnect output from the BAT
thereby further decreasing the system standby
power. Its 1.0MHz switching frequency enable a very
small external inductor with inductance as low as
2.2uH. A fuel gauge also drives 4 LEDs for battery
level indication. ETA9085 is ideal for applications
such as a TWS charging cradle that requires low
standby power and small PCB space.
ETA9085 is housed in a ESSOP10 package
Ultra low boost standby Iq , Ibat<10uA
20V Charge input standoff voltage
4.2V/4.35V charge termination voltage
Charge current programmable
Boost Output Disconnect and SCP
5V/0.5A Output Power
Up to 96% Efficiency for boost
Fuel Gauge and LED indicators
NTC thermistor input
Logic Control Shutdown
Thermal shutdown
ESSOP10 Package
