34825 datasheet(14/39 Pages) FREESCALE

Part #	34825

Description	Micro-USB Interface IC Supporting Universal Charging Solution and Wired Accessories

PDF	39 Pages

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Manufacturer	FREESCALE [Freescale Semiconductor, Inc]

Direct Link	http://www.freescale.com

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14 / 39 page

Analog Integrated Circuit Device Data

Freescale Semiconductor

34825

FUNCTIONAL DESCRIPTION

FUNCTIONAL PIN DESCRIPTION

I2C CLOCK (I2C_SCL)

Clock line of the I2C interface. The I2C_SCL input together

with the I2C_SDA input forms one of the hardware reset input

sources.

POWER OUTPUT (OUT)

Output of the power MOSFET in the 34825. This pin is

connected to a charger input. Bypass to ground with a 1.0

μF

capacitor.

CHARGE CURRENT SETTING (ISET)

Open-drain output to set the charge current according to

the power supply current capability.

VBUS POWER SUPPLY (VBUS)

USB VBUS input. Bypass this pin to ground with a less

than 10 nF capacitor. When the accessory is an audio kit, this

pin is the microphone input to the 34825.

D- OF THE USB CONNECTOR (DM)

D- line of the mini or micro-USB connector.

D+ OF THE USB CONNECTOR (DP)

D+ line of the mini or micro-USB connector.

ID OF THE USB CONNECTOR (ID)

ID pin of the mini or micro-USB connector.

GROUND (GND)

Ground.

34825 Datasheet(PDF) 14 Page - Freescale Semiconductor, Inc