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参数资料
| 型号： | MC34827A1EPR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 18/57页 |
| 文件大小： | 0K |
| 描述： | IC USB POWER MANAGER 20-QFN |
| 标准包装： | 1 |
| 应用： | OR 控制器，UART/USB 数据，音频管理 |
| 电流 - 电源： | 9µA |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-UFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN 裸露焊盘（3x3） |
| 包装： | 标准包装 |
| 其它名称： | MC34827A1EPR2DKR |
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FUNCTIONAL DEVICE OPERATION
ACCESSORY IDENTIFICATION
ACCESSORY IDENTIFICATION
When an accessory with powered VBUS is attached in
Power Down mode, the 34827 enters VBUS Power mode.
The 34827 will not identify the type of accessory in VBUS
Power mode. The ISET pin outputs high-impedance for all
accessories, and the power MOSFET is turned on to pass the
VBUS voltage to the charger IC to charge the battery. Once
the VDD is increased above the POR threshold, the 34827
enters Standby mode to start the identification flow
In the Standby mode, the 34827 monitors both the ID pin
and the VBUS pin. If an accessory attachment is detected,
the 34827 enters Active mode to start the identification flow.
The ID detection state machine will find out what ID resistor
is attached and the PSTI circuit will find out what type of
power supplies is connected.
An identification conclusion can be drawn when the
identification flow is finished. The corresponding bit in the
Device Type register is set to indicate the device type, and
the ATTACH bit in the Interrupt 1 register is set to inform the
baseband; If the attached accessory can’t be identified, the
Unknown_Atta bit in the Interrupt 2 register will be set.
According to the automatic configuration capability of the
34827 in Active mode, there are three types of accessories:
1. Recognized and supported. Such accessories include:
USB port, Dedicated charger, USB charger, A/V
charger, 5-wire type 1 and 5-wire type 2 chargers,
UART, Audio Type 1 cable, TTY accessory, USB jig
cable and UART jig cable. Automatic configurations
are supported for those accessories.
2. Recognized but not supported. These accessories can
be identified but not supported by 34827, including A/V
cable, Phone-Powered Devices, USB OTG
accessories and Audio Type 2 cable.
3. Not recognized accessories. These will be identified as
Unknown accessories.
The details on the identification flow in Active mode are
described as following.
MC34827
Analog Integrated Circuit Device Data
18
Freescale Semiconductor
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| MC34827A2EPR2 | 功能描述:USB 接口集成电路 MINI USB IC RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
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| MC34831 | 制造商:SPC Multicomp 功能描述:HEADER VERTICAL SMT 7WAY 制造商:SPC Multicomp 功能描述:HEADER, VERTICAL, SMT, 7WAY 制造商:SPC Multicomp 功能描述:WIRE-BOARD CONNECTOR HEADER 7POS, 1.25MM; Connector Type:Wire to Board; Series:1251S; Contact Termination:Surface Mount Vertical; Gender:Header; No. of Contacts:7; No. of Rows:1; Pitch Spacing:1.25mm; Contact Plating:Tin ;RoHS Compliant: Yes |
| MC34833 | 制造商:SPC Multicomp 功能描述:HEADER VERTICAL SMT 11WAY |
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