KTE7800 5W Wireless Power Receiver and Linear Charger Preliminary Datasheet
■KTE7800 is a robust wireless power receiver combined with a full-featured single cell Li Ion battery charger. This device is optimized for small low power devices with small coils, while supporting batteries with 30mAh through 1.2AH capacity.
■This is a microcontroller based design, optionally configurable by OTP memory, resistor programming features, and/or control via the I²C interface.
■KTE7800 is highly integrated including 8k ROM, 8k OTP memory, an LDO regulator with OVP/OCP/RCP, precision CCCVCTJ charger, full charging algorithm, internal battery-disconnect MOSFET, ADC and monitoring functions.
●Features
■Single-Chip Solution up to 5Watt wireless power
■WPC/Qi v1.3 Standards Compliant
■Optimized for small coil designs
▲Reliable low voltage startup
▲Programmable 3.2V to 5.2V LDO mode output
▲Programmable current limit
▲Robust fully internal overvoltage protection
▲Multifunction GPIO with switchable high-precision 20µA current source
■Complete and safe battery charging system
▲CC (±5%), CV (±0.5%), CTJ (±10°C)
◆CC 30mA to 600mA, CV 3mA through 120mA
▲No current sense resistor; 4.35V, 4.20V
▲Dead battery, Prequal, Fast CC, Fast CV, Term, Top-Off, Done, Restart, Disconnect on charged
▲Fault Detection, Charge Timer, JEITA NTC
▲Protections: UVLO, OVP, OCP, SCP, RCP, OTP
■I²C Serial Interface, Enable input, Interrupt output
■-40°C to 85°C Operating Temperature Range
■Standard QFN-24 package (5mm x 5mm x 0.620mm)
■24-bump WLCSP package option
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KTE7800 、 KTE7800AEUAK-DA-TB 、 KTE7800BEUAK-DA-TB 、 KTE7800CEUAK-DA-TB |
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Wireless Power Receiver 、 Linear Charger 、 robust wireless power receiver |
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[ Earbud Cases ][ Mice ][ IoT Devices ][ Accessories ][ Personal Care Products ][ Toys ][ Battery-Powered Equipment ][ Battery-free Devices ] |
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Datasheet |
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Please see the document for details |
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QFN-24;WLCSP |
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English Chinese Chinese and English Japanese |
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March 2023 |
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Revision 03a |
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2 MB |
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