MC34825EPR2 Freescale Semiconductor, MC34825EPR2 Datasheet

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MC34825EPR2

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

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
Freescale Semiconductor
Advance Information
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2010. All rights reserved.
Micro-USB Interface IC
Supporting Universal Charging
Solution and Wired Accessories
(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 cell
phone 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.
between the ID pin and the ground to identify the accessory being
plugged into the mini or micro-USB connector. A high-accuracy 5-bit
ADC is offered to distinguish 32 levels of ID resistance that are
assigned to buttons in a cord remote controller or to identification (ID)
resistors of accessories. After identifying the attached accessory, the
34825 sends an interrupt signal to a host IC and the host IC can
configure the analog switches via an I
When the accessory is detached from the cell phone, an interrupt signal
is also sent to inform the host.
• Identifies various types of power supplies to set low or high
• Internal power switch to offer OVP against up to 28 V
• Supports stereo/mono headset with or without microphone
• Supports USB or UART R/D test cables
• High speed (480 Mbps) USB 2.0 compliant
The 34825 is designed to support the Universal Charging Solution
The 34825 monitors both the VBUS status and the resistance
Features
battery-charging-current levels
failed power supply input
and remote controller with pure passive components
Baseband
USB XCVR
AUDIO
UART
GPIO
I2C
2
Figure 1. 34825 Simplified Application Diagram
C serial bus for further actions.
VDDIO
INT
I2C_SDA
I2C_SCL
RXD
TXD
D+
D-
SPK_L
SPK_R
MIC
34825
VBUS
GND
VDD
OUT
ISET
DM
DP
ID
• Supports 32 ID resistance values with a high accuracy 5-
• Accessory attachment and detachment detection with an
• I
• 10 μA quiescent current in Standby mode
• Pb-free packaging designated by suffix code EP
bit ADC
interrupt signal to the host IC
2
C interface
MC34825EP/R2
Device
LI+
ORDERING INFORMATION
USB Connector
Charger
INTERFACE IC
Document Number: MC34825
34825
98ASA00037D
-40°C to 85°C
Temperature
20-PIN QFN
(PB-FREE)
Range (T
ID
D+
D-
GND
V
BUS
A
)
Rev 2.0, 3/2010
3mm X 3mm
Package
UTQFN

Related parts for MC34825EPR2

MC34825EPR2 Summary of contents

Page 1

... Figure 1. 34825 Simplified Application Diagram * This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Freescale Semiconductor, Inc., 2010. All rights reserved. MC34825EP/R2 C serial bus for further actions. • Supports 32 ID resistance values with a high accuracy 5- bit ADC • ...

Page 2

... INTERNAL BLOCK DIAGRAM Internal OSC Reset Supplies VBUS Detect Gate Drive & OCP Interface Registers and State Machine Interrupt UART Switches USB Switches ID ADC ID Audio Detect Switches VBUS GND VDD VBUS OUT ISET Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 3

... Input Connection 11 VDD Input 12 INT Output C_SDA 14 2 Input I C_SCL 15 OUT Output 16 ISET Output 17 VBUS Input Analog Integrated Circuit Device Data Freescale Semiconductor PIN CONNECTIONS MIC 3 13 GND Figure 3. 34825 Pin Connections Formal Name Right channel input for speaker signals Speaker right channel ...

Page 4

... Formal Name D- line of the mini or micro-USB connector D- of the USB connector D+ line of the mini or micro-USB connector D+ of the USB connector ID pin of the mini or micro-USB connector ID of the USB connector Ground Ground page 13. Definition Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 5

... Temperature and Moisture Sensitivity Levels (MSL www.freescale.com, search by part number [e.g. remove prefixes/suffixes and enter the core ID to view all orderable parts (i.e. MC33xxxD enter 33xxx)], and review parametrics. Analog Integrated Circuit Device Data Freescale Semiconductor ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS Symbol ...

Page 6

... V - 2.65 2. 150 - 1 1.2 mA μ 0.5 A 6.8 7.0 7 150 - mV 1.2 1.8 2.2 A °C 115 130 145 - 95 - 1.65 - 3.6 V Ω 100 μ 0.5 A Ω 100 μ mΩ - 200 250 Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 7

... Data Detect Voltage Low threshold High threshold Data Sink Current DM pin is biased between 0.15 to 3.6 V DP, DM Pin Capacitance DP, DM Pin Impedance All switches are off Analog Integrated Circuit Device Data Freescale Semiconductor = 3.0 V, -40°C ≤ 3 5 BUS DDIO Symbol R SPK_ON ...

Page 8

... A = 3.6 V and T = 25°C under nominal DD A Min Typ Max Unit V - 2.3 - μ A 1.9 2.0 2.1 30.4 32 33.6 1.0 1.2 1 0 DDIO - - 0 0.4 -0.2 - 0.3V V DDIO 0. DDIO DDIO - - 0 4.0 mA μ -1 8.0 pF Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 9

... Key Press Comparator Debounce Time RESET TIMING Device Reset Time VDDIO Logic Input Timing Rising edge deglitch time Falling edge deglitch time VDDIO Reset Timing VDDIO reset pulse width Analog Integrated Circuit Device Data Freescale Semiconductor = 3.0 V, -40°C ≤ 3 5 BUS DDIO Symbol t ...

Page 10

... F t SU:STO t DGT μ s. ≤ 85°C (see Figure 1), unless A = 3.6 V and T = 25°C under nominal DD A Min Typ Max Unit 400 kHz μ 1 μ 0 μ 1 μ 0 μ 0 μ 100 - - ns 20+0. 20+0. μ 0 300 ns Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 11

... Temperature = 85°C 35 Temperature = 25° Temperature = -40°C 20 0.0 0.5 1.0 1.5 2.0 Input Voltage Figure 6. UART Switch On Resistance vs Input Voltage Analog Integrated Circuit Device Data Freescale Semiconductor ELECTRICAL PERFORMANCE CURVES 1.8 0.5 1.0 1 Figure 7. MIC Switch On Resistance vs Input Voltage 9.6 9.4 9 ...

Page 12

... Temperature Figure 10. VBUS Supply Current vs Temperature In VBUS Power Mode 34825 12 9.0 7.5 6.0 4.5 3.0 1 °C Figure 11. OUT Voltage vs VBUS Voltage 1.5 3.0 4.5 6.0 7.5 9 VBUS Voltage V Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 13

... Transmitter line of the UART. NO CONNECT (NC) These pins are not used in application. Freescale recommends that these pins be floated Analog Integrated Circuit Device Data Freescale Semiconductor FUNCTIONAL DESCRIPTION INTRODUCTION in the ID pin floating status. Detaching the accessory from the micro or mini-USB connector causes the VBUS voltage or/ and the ID resistance to change ...

Page 14

... D- OF THE USB CONNECTOR (DM) D- line of the mini or micro-USB connector THE USB CONNECTOR (DP) D+ line of the mini or micro-USB connector THE USB CONNECTOR (ID) ID pin of the mini or micro-USB connector. GROUND (GND) Ground. Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 15

... The 34825 is a slave device. LOGIC OUTPUT The logic output includes two open-drain logic output signals, INT and ISET. Analog Integrated Circuit Device Data Freescale Semiconductor Internal Logic & Power ...

Page 16

... SPK_R or SPK_L pins in 10 seconds. The VDD current in the Power Save mode is slightly higher than the current in the Standby mode. The 34825 can exit the Power Save mode programming or will exit the mode automatically when V > VDDPOR 2 C programming operation. Table 21). The 2 Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 17

... The power MOSFET remains on unless it is disabled by the over-voltage protection or the over-temperature protection block. Analog Integrated Circuit Device Data Freescale Semiconductor accessory identification flow shown in started. The PSAVE bit is also a R/W bit. When the 34825 is ...

Page 18

... I The details on the identification flow for the VBUS- detection mechanism and the ID detection mechanism are described as following. Table 21. Such accessories are non-powered Table 21. Figure 14. In the C bus to initiate the identification state machine. Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 19

... ID_FLOAT bit changes to 0. When the resistor is removed, ID_FLOAT bit returns falling-edge of the ID_FLOAT bit represents the attachment of the accessory and the ADC is enabled to measure the ID resistance. The ADC Result register has the identification result of the R Analog Integrated Circuit Device Data Freescale Semiconductor ACTIVE = 0 ID Float Yes ID Float? No ...

Page 20

... Table 7. ADC Result Accessory Type 11111 Standard USB Port 11111 USB Charger 11111 Dedicated Charger 10111 Carkit Charger Type 1 11011 Carkit Charger Type 2 Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 21

... The SW8 in Figure power MOSFET that controls Analog Integrated Circuit Device Data Freescale Semiconductor OPERATION AFTER IDENTIFICATION details). If the ATTACH bit is masked while the VDDIO is powered, the interrupt signal will not be sent but the host IC can still access the register map via the I ...

Page 22

... Active mode. When AutoPSAVE = 0, the host IC can control the mode of 34825 manually by setting the PSAVE bit in the Device Mode register via I In the Power Save mode, the key pressing is monitored as well Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 23

... ID resistance to differentiate it from a regular USB cable or Table 8. Switch Status vs. Test Cables Accessory Type UART test cable type 1 UART test cable type 2 USB test cable type 1 USB test cable type 2 Other accessories Analog Integrated Circuit Device Data Freescale Semiconductor MIC Audio_R Audio_L … ...

Page 24

... Figure 18. The Detachment Detection Flow LOGIC CONTROL FEATURES RESET On-Reset caused by the rising VDD, a hardware reset caused by the VDDIO input and a hardware reset using the bus lines. The Power-On-Reset is described earlier. The RID Yes Set Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 25

... There are eight interrupt sources in the 34825 causing an interrupt at the INT pin to the host IC. They are accessory attachment, accessory detachment, short-key press, long Analog Integrated Circuit Device Data Freescale Semiconductor 2 C bus lines To effectively reset the 34825, the reset pulse from the VDDIO needs be longer than the 150 μ ...

Page 26

... I C SERIAL BUS INTERFACE Figure 22. I The following three figures show three I protocols. The Word Address is an 8-bit register address in the 34825. Figure 27 R Slave Address 2 C-bus transaction Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 27

... R/W 10010100 Reserved A3H Device Mode R/W 00000001 Reserved Table 10. Interrupt Register Bit Mode Symbol 0 R/C ATTACH Analog Integrated Circuit Device Data Freescale Semiconductor REGISTER MAP Bit 6 Bit 5 Bit 4 OTP_EN OVP_EN LKR OTP_EN_m OVP_EN_m LKR_m Reserved Reserved Key Press Reserved Reserved ...

Page 28

... Long key press duration 0000 0000: 300 ms 0001: 400 ms 0010: 500 ms ...... Normal key press duration 0000 0000: 100 ms 0001: 200 ms 0010: 300 ms ...... Key Press 100 ms 200 ms 300 ms Notes Notes Notes Notes Long Key Press 300 ms 400 ms 500 ms Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 29

... Setting Value 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 Analog Integrated Circuit Device Data Freescale Semiconductor FUNCTIONAL DEVICE OPERATION Key Press Long Key Press 400 ms 600 ms 500 ms 700 ms 600 ms 800 ms 700 ms 900 ms 800 ms 1000 ms 900 ms ...

Page 30

... DP connected to D+, DM connected to D- 010: DP connected to SPK_R, DM connected to SPK_L 011: DP connected to RxD, DM connected to TXD Others: open all switches connected to the DP pin and DM pin 000 Reset Description 0100 ISET output 0 0: high-impedance 1: low-impedance 000 Notes Notes Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 31

... R/W Reserved 2 W/C RESET 4-3 R/W Reserved 5 R/W AutoPSAVE 7-6 R/W Reserved Analog Integrated Circuit Device Data Freescale Semiconductor Reset Description ADC conversion status x 1: ADC conversion completed 0: ADC in progress VBUS voltage is higher than the POR yes ID line is floating yes ID pin is shorted to ground ...

Page 32

... This bit indicates if a chip reset has occurred. This bit will be cleared once 1 being read. 0: no. 1: Yes. Indicate either the device is in Active mode 0 0: Standby 1: Active To indicate either the device is in Power Save mode yes 00000 Notes Notes Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 33

... Analog Integrated Circuit Device Data Freescale Semiconductor TYPICAL APPLICATIONS APPLICATION INFORMATION Table 21. ID Resistance Assignment (Unit: kΩ) Item# ADC Result 29 11101 30 11110 31 11111 The remote control architecture is illustrated in The recommended resistors for the remote control resistor ...

Page 34

... INT VDDIO RxD ISET TxD OUT D+ VBUS D- V AIO MIC DP * SPK_L DM * GND SPK_R * : For direct-drive audio output, these DC blocking capacitors are not needed μ F capacitance is enough for 1.0 µF MC34673 Li 9.1 k VBUS 4 GND SHLD Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 35

... For the most current package revision, visit www.freescale.com and perform a keyword search using the “98A” listed below. Analog Integrated Circuit Device Data Freescale Semiconductor PACKAGE DIMENSIONS EP SUFFIX 20 LD. QFN 98ASA00037D REVISION O TYPICAL APPLICATIONS PACKAGE DIMENSIONS 34825 35 ...

Page 36

... TYPICAL APPLICATIONS PACKAGE DIMENSIONS 34825 36 EP SUFFIX 20 LD. QFN 98ASA00037D REVISION O Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 37

... Analog Integrated Circuit Device Data Freescale Semiconductor EP SUFFIX 20 LD. QFN 98ASA00037D REVISION O PACKAGE DIMENSIONS 34825 37 ...

Page 38

... REVISION HISTORY REVISION DATE DESCRIPTION OF CHANGES 3/2010 • Initial Release 2.0 34825 38 REVISION HISTORY Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 39

... Freescale Semiconductor was negligent regarding the design or manufacture of the part. Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc ...

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