MC34825: MicroUSB Interface IC _ BDTIC a Leading Distributor in China

MC34825: MicroUSB Interface IC

The 34825 is designed to support the Universal Charging Solution (UCS) recommended by the OMTP (Open Mobile Terminal Platform), as well as to use the same 5-pin micro or mini-USB connector for other wired accessories. The 34825 supports various types of external power supplies, such as a dedicated ac/dc adapter or a USB port, to charge the battery. It has functions built in to identify the type of the power supply, and sets low or high charging current, based on the current capability of the power supply. The 34825 monitors the power supply, and offers an up to 28 V of over-voltage protection (OVP) to the cellphone against failed power supplies. The 34825 also contains analog switches to multiplex the 5 pins, to support UART and high speed USB data communication, mono or stereo audio headset with or without a microphone and a cord remote controller, manufacturing or research-and-development (R/D) test cables, and other accessories.

NXP^® MC34825 Power Actuation Block Diagram

NXP^® MC34825 Product Image

特性

Identifies various types of power supplies to set low or high battery-charging-current levels
Internal power switch to offer OVP against up to 28 V failed power supply input
Supports stereo/mono headset with or without microphone and remote controller with pure passive components
Supports USB or UART R/D test cables
High speed (480 Mbps) USB 2.0 compliant
Supports 32 ID resistance values with a high accuracy 5-bit ADC
Accessory attachment and detachment detection with an interrupt signal to the host IC
I2C interface
10 µA quiescent current in Standby mode

Name/Description	Type	Modified Date
MC34825, Micro-USB Interface IC Supporting Universal Charging Solution and Wired Accessories - Data Sheet (REV 4.0) PDF (741.3 kB) MC34825	Data Sheets	03 Sep 2014
MC34825FS, Micro-USB interface IC supporting universal charging solution and wired accessories (REV 3.0) PDF (64.5 kB) MC34825FS	Fact Sheets	13 Apr 2010

Data Sheets (1)

Name/Description	Modified Date
MC34825, Micro-USB Interface IC Supporting Universal Charging Solution and Wired Accessories - Data Sheet (REV 4.0) PDF (741.3 kB) MC34825	03 Sep 2014

Application Notes (1)

Name/Description	Modified Date
AN1902, Assembly Guidelines for QFN (Quad Flat No-Lead) and DFN (Dual Flat No-Lead) Packages - Application Note (REV 7.0) PDF (3.6 MB) AN1902	13 Oct 2014

Users Guides (1)

Name/Description	Modified Date
KIT34825EPEVME, Evaluation Board Kit - User Guide (REV 2.0) PDF (4.1 MB) KT34825UG	31 Aug 2010

Fact Sheets (1)

Name/Description	Modified Date
MC34825FS, Micro-USB interface IC supporting universal charging solution and wired accessories (REV 3.0) PDF (64.5 kB) MC34825FS	13 Apr 2010

Product Change Notices (1)

Name/Description	Modified Date
Copper Wire and Case Outline Qualification (QFN) (REV 0) HTM (47.3 kB) PCN16331	11 Jul 2014

Ordering Information

Product	Status	Status	Device Function	Budgetary Price excluding tax(US$)	Package Type and Termination Count	Load Supply Voltage (Min) (V)	Load Supply Voltage (Max) (V)	Supply Voltage (Min-Max) (V)	Interface and Input Control	Switch Monitoring Voltage (Min-Max) (V) (VSENSE)	Ambient Operating Temperature (Min-Max) (°C)	Protection	Diagnostics	Additional Features-Analog	ADC Dynamic Range (dB)	ADC SNR (dB)	DAC Dynamic Range (dB)	DAC SNR (dB)	Frequency Band (Min-Max) (MHz)	RoHS
MC34825EPR2	Active		Signal Conditioning	1K @ US$0.91	QFN-EP 20	2.8	28	2.7 to 5.5	I2C		-40 to 85	Overcurrent, Overvoltage Protect	Parallel	A/D Converter and Digital I/O						[object Object]