MAX14746：USB Detection with Smart Power Selector Li+ Chargers _ BDTIC 中国领先电子元器件代理商

MAX14746：USB Detection with Smart Power Selector Li+ Chargers

Single-Chip Solution for USB Charging and Charger Detection

The MAX14746/MAX14747 are a series of USB charger detectors with an integrated Smart Power Selector™ linear charger solutions that provide a single-chip solution for charging and charger detection. The MAX14746/MAX14747 charger detectors are compliant to USB Battery Charger Detection Rev 1.2* and capable of detecting multiple USB battery-charging methods, including Standard Downstream Ports (SDP), Charging Downstream Ports (CDP), and Dedicated Charger Ports (DCP). The devices also detect common proprietary charge adapters, including those from Apple. The MAX14746/MAX14747 battery chargers feature Smart Power Selector operation, allowing operation with dead or no battery present. The devices limits USB VBUS current based on the detect charger source type. If the charger power source is unable to supply the entire system load, the smart-power control circuit supplements the system load with current from the battery. The devices protect against overvoltage faults up to 28V. This series of USB charger detectors are available with several options, with slight variations in, for example, power-up states. These variations are noted throughout this data sheet. There are five options available with slight variations in, for example, power-up states. The devices are available in a 25-ball, 0.4mm pitch wafer-level package (WLP), and are specified over the -40°C to +85°C extended temperature range.

关键特性

Flexible System Design to Operate with Any USB Charger Source
- Compliant to USB Battery Charger Rev 1.2 Specification
- Supports Proprietary USB Charging Sources, Including Apple
- D+/D- Bias Voltage Supported
Easy to Implement Li+ Battery Charging
- Smart Power Selector
- Fully Compliant with Dead Battery/Weak Battery Charging According to USB 2.0 Specification
- JEITA Charge Protection
- Thermal Protection
- Internal USB D+/D- Switch to Manage Connection
Integrates High Level of Protection
- 28V Tolerant Input on VB
- ±15kV Human Body Model ESD Protection on CDP and CDN

应用

数据手册DataSheet

语言	下载文件	备注
英文	MAX14746-MAX14747.pdf	Rev 0; 01/2017

关键参数

Part Number	Protocol	Config.	V_SUPPLY (Single) (V)	V_SUPPLY (Single) (V)	V_SIGNAL (V)	Supported USB Battery Charging Specification	V_BUS Tolerance (V)	ESD Protection	R_ON (Ω)	R_FLAT(ON) (Ω)	I_L(OFF) (nA)	C_ON (pF)	C_OFF (pF)	Package/Pins
Part Number	Protocol	Config.	min	max	min	Supported USB Battery Charging Specification	V_BUS Tolerance (V)	ESD Protection	max	typ	max	C_ON (pF)	C_OFF (pF)	Package/Pins
MAX14746	USB	2 x SPST	2.2	5.5	0	1.2	28	±15kV HBM	6	0.3	360	6	3.5	WLP/25
MAX14747	USB	2 x SPST	2.2	5.5	0	1.2	28	±15kV HBM	6	0.3	360	6	3.5	WLP/25

开发工具

MAX14746EVKIT

订购型号

型号	状况	推荐替代产品	封装	温度	RoHS/无铅
MAX14746BEWA+T	生产中		WLP,；25引脚；WLP；	-40°C至+85°C	RoHS/无铅：无铅

MAX14746-MAX14747.pdf MAX14747