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参数资料
| 型号： | MC34827A1EPR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 26/57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
OPERATION AFTER IDENTIFICATION
.
RxD
TxD
D+
D-
SPK_R
SPK_L
MIC
SW1
SW2
SW3
SW4
SW5
SW6
SW7
DP
DM
VBUS
ISET
SW9
Gate
Drive
SW8
OUT
SW10
Figure 20. Analog and Digital Switches
Table 7. Switch Configuration when Controlled by the Device Type Register
Device Type
On SW#
Audio
4, 5, 7, 10
USB
3, 6, 8
UART
1, 2, 10
USB CHG
3, 6, 8, 9
Dedicated CHG
8, 9
5WT1 CHG
8
Device Type
5WT2 CHG
JIG_USB_OFF JIG_USB_ON JIG_UART_OFF JIG_UART_ON
TTY
On SW#
8
3, 6, 8
3, 6, 8
1, 2, 10
1, 2, 10
4, 5, 7, 10
POWER MOSFET
An N-channel power MOSFET is implemented in the
34827. For the Audio Type 1 or TTY accessory, the power
MOSFET isolates the VBUS pin from both the input
decoupling capacitor and the input quiescent current of the
charger IC at the OUT pin, so that the microphone signal can
be connected to the VBUS pin without any attenuation from
the OUT pin. The power MOSFET is also used as the input
over-voltage protection (OVP) or over-current protection
(OCP) switch for other components such as the charger IC to
allow a low-voltage rated charger to be used for cost
reduction.
The power MOSFET is guaranteed to be turned on when
the VDD voltage is below POR threshold and VBUS is
powered up to a voltage range between the POR threshold
and the OVP threshold to assure that the cell phone battery
can be charged in the VBUS Power mode.
When supported power supply is attached in the Active
mode, the power MOSFET keeps on unless it is disabled by
the OCP/OTP block or the FET_DIS signal from the logic
block. The FET_DIS signal comes from the following places:
1. when the switches are controlled by the Manual S/W
bits
2. when the Switch_Open bit = 0
3. when the accessory is an unknown powered accessory
4. when the FET_ON bit =0 in the FSL Control register
OVER-VOLTAGE PROTECTION (OVP)
The VBUS line is capable of withstanding a 28 V voltage.
The 34827 protects the cell phone by turning off the internal
power MOSFET when the VBUS voltage is higher than the
OVP threshold. In this case, the gate driver turns off the
power MOSFET within 1.0 μ s, and the OVP_EN bit in the
Interrupt 1 register is set to interrupt the host. When the OVP
event is cleared, the OVP_OTP_DIS bit in the Interrupt 1
register is set to inform the host.
MC34827
Analog Integrated Circuit Device Data
26
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 |
| MC34829 | 制造商:SPC Multicomp 功能描述:CONNECTOR FPC SMD 0.5MM 20WAY |
| MC3482BL | 制造商:Motorola Inc 功能描述: |
| 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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