Управление питанием от батарей MAX14578AEETE+

Схема определения зарядки Li-Ion батареи , USB интерфейс, 1 элемент, 2.8В до 5.5В питание, TQFN-16

The MAX14578AEETE+ is an USB battery charger detector in 16 pin TQFN package. The USB charger-detection circuitry detects USB standard downstream ports (SDPs), USB charging downstream ports (CDPs) or dedicated charger ports (DCPs) and controls an external lithium-ion (Li+) battery charger. The device implement USB battery charging revision1.1-compliant detection logic including data contact detection, D+/D- short detection, charging downstream port identification. The MAX14578AE features an enable input and an LDO output. The internal USB switch is compliant to Hi-Speed USB, full-speed USB and low-speed USB signals. The device feature low on-resistance, low on-resistance flatness and very low capacitance. The device also features high-ESD protection up to ±15KV human body model on the CD+ and CD- pins. In addition, the device feature Apple and Sony charger detection that allows identification of resistor-divider networks on D+/D-.

• Supply voltage range is 2.8V to 5.5V
• Operating temperature range from -40°C to 85°C
• China YD/T1591 compliant charger detection
• Internal switches isolate the USB transceiver during the charger detection process
• VBUS connection capable of 28V
• Device status change interrupt
• Low supply current of 1µA at VBAT = +3.6V
• ±8KV IEC 6100-4-2 contact discharge

Области применения

Управление Питанием, Переносные Устройства