MC34825EPR2 Freescale Semiconductor, MC34825EPR2 Datasheet - Page 15

• Manufacturer Part Number: MC34825EPR2
• Description: IC USB MINI UNIV CHARGING 20QFN
• Manufacturer: Freescale Semiconductor
• Type: USB Interface ICr

Specifications of MC34825EPR2

• Controller Type: USB Peripheral Controller
• Interface: Micro-USB
• Voltage - Supply: 2.7 V ~ 5.5 V
• Current - Supply: 100mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-UFQFN Exposed Pad
• Usb Version: 2.0
• No. Of Ports: 1
• Supply Voltage Range: 2.7V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• No. Of Pins: 20
• Msl: MSL 3 - 168 Hours
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• Leaded Process Compatible: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

INTERNAL POWER SUPPLIES
circuits. The inputs to this block include VBUS, VDD and
VDDIO.
LOGIC AND STATE MACHINE
detection and identification, the register map, and other logic
circuits.
I
communication that a master device can use to access the
registers in the 34825. The 34825 is a slave device.
LOGIC OUTPUT
signals, INT and ISET.
Analog Integrated Circuit Device Data
Freescale Semiconductor
2
C INTERFACE
This block contains the bias power supplies to the internal
This block includes the state machine for accessory
The I
The logic output includes two open-drain logic output
2
C interface block has the circuit for the I
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
Interface
Figure 12. 34825 Functional Internal Block Diagram
Output
Logic
I
2
C
2
C
Supplies
Internal
Switch
Power
Array
Machine
ID ADC
Logic &
SWITCH ARRAY
USB, audio signal switching and one high-voltage power
MOSFET for power switching.
VBUS DETECTION
is present or removed.
ID DETECTION
This block contains a circuit to detect whether an ID resistor
is connected to the ID pin or not.
ID ADC
pin. The result is stored in the ADC Result register and sent
to the Logic and State Machine block to determine what
accessory is attached.
State
The switch array consists of analog switches for UART,
This block detects whether the power supply at VBUS pin
An internal 5-bit ADC measures the resistance at the ID
Detection
Detection
VBUS
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
ID
FUNCTIONAL DESCRIPTION
34825
15