PI3USB9281GEEX Datasheet PI3USB9281GEEX | P4-P6

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2014-04-0004 PT0502-1 04/28/14

4

PI3USB9281

USB 2.0 Port Protection with Charger Detection

Switch AC Electrical Characteristics

Min and Max apply for T

A

between -40°C to 85°C and TJ up to +125°C (unless otherwise noted). Typical values are

referenced to T

A

=+25°C , V

BAT

=3.8V.

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Units

BW

USB

-3dB Bandwidth of USB channel

-

1300

-

MHz

O

IRR

OFF-Isolation

USB Mode

f=1MHz, R

S

=50Ω, C

L

=0

-

-70

-

dB

X

TALK

Active Channel

Crosstalk D+ to D-

USB Mode

f=1MHz, R

S

=50Ω, C

L

=0

-

-70

-

dB

f=240MHz, R

S

=50Ω, C

L

=0

-

-30

-

t

SK(P)

Skew of Opposite Transitions of the Same

Output (USB Mode)

tr=tf=750ps (10-90%) at

240MHz, C

L

=0pF, R

L

=50Ω

-

30

-

ps

t

I2CRST

Time When I

2

C_SDA and I

2

C_SCL Both

LOW to Cause a Reset

-

15

-

ms

t

INTMASK

Time after INT Mask Cleared to “0” until

INTB Goes LOW to Signal the Interrupt

after Interruptible Event while INT Mask

Bit Set to “1”

-

25

-

ms

t

SDPDET

Time from V

BUSIN

Valid to V

BUSOUT

Valid

with Charger FET Closed and USB

Switches Closed for USB Standard

Downstream Port

See Figure 6

-

200

-

ms

t

CHGOUT

Time from V

BUSIN

Valid to V

BUSOUT

Valid

with Charger FET Closed for USB

Charging Ports(CDP and DCP)

See Figure 4 and Figure 5

-

200

-

ms

t

CARKIT

Time from V

BUSIN

Valid to Car Kit Type 1

or Type 2 Charger Detected

See Figure 8

-

130

-

ms

t

IDDET

Time from ID Not Floating to INTB LOW

to Signal Accessory Attached that is ID

Resistance-Based Only (V

BUSIN

Not Valid)

See Figure 9

-

100

-

ms

I

2

C Controller DC Electrical Characteristics

Symbol

Parameter

Fast Mode (400kHz)

Units

Min.

Max.

V

IL

Low-Level Input Voltage

-0.5

0.3V

DDIO

V

IH

High-Level Input Voltage

0.7V

DDIO

-

V

HYS

Hysteresis of Schmitt Trigger Inputs

V

DDIO

>2V

0.05V

DDIO

-

V

DDIO

<2V

0.1V

DDIO

-

V

OL1

Low-Level Output Voltage at 3mA Sink Current (Open-

Drain)

V

DDIO

>2V

0

0.4

V

DDIO

<2V

-

0.2V

DDIO

I

I2C

Input Current of I

2

C SDA and SCL Pins, Input Voltage 0.26V to2.34V

-10

10

µA

C

I

Capacitance for Each I/O Pin

-

10

pF

I

2

C AC Electrical Characteristics

Symbol

Parameter

Fast Mode (400kHz)

Units

Min.

Max.

f

SCL

SCL Clock Frequency

0

400

kHz

t

HDSTA

Hold Time (Repeated) START Condition

0.6

-

µs

t

LOW

LOW Period of SCL Clock

1.3

-

µs

t

HIGH

HIGH Period of SCL Clock

0.6

-

µs

t

SETSTA

Set-up Time for Repeated START Condition

0.6

-

µs

t

HDDAT

Data Hold Time

0

0.9

µs

t

SETDAT

Data Set-up Time

(1)

100

-

ns

t

r

Rsie Time of SDA and SCL Signals

(2)

20+0.1C

b

300

ns

t

f

Fall Time of SDA and SCL Signals

(2)

20+0.1C

b

300

t

SETSTO

Set-up Time for STOP Condition

0.6

-

µs

t

BUF

Bus-Free Time between STOP and START Conditions

1.3

-

µs

t

SP

Pulse Width of Spikes that Must Be Suppressed by the Input Filter

0

50

ns

Notes:

1. A fast-mode I

2

C-bus device can be used in a standard-mode I

2

C-bus system, but the requirement t

SETDAT

≥ 250ns must be met.

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2014-04-0004 PT0502-1 04/28/14

5

PI3USB9281

USB 2.0 Port Protection with Charger Detection

This is automatically the case if the device does not stretch the LOW period of the SCL signal. If such a device does stretch the

LOW period of the SCL signal, it must output the next data bit to the SDA line tr_max + t

SETDAT

= 1000 + 250 = 1250ns

(according to the standard-mode I

2

C bus specification) before the SCL line is released.

2. C

b

equals the total capacitance of one BUS line in pF. If mixed with high-speed devices, faster fall times are allowed

according to the I

2

C specification.

Definition of Timing for Full-Speed Mode Devices on the I

2

C Bus

Table 2. I

2

C Slave Address

Name

Size (Bits)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Slave Address

8

0

1

0

1

0

1

R/W

Table 3 Register Map

Address

Register

Type

Reset

Value

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

01H

Device

ID

Read

00000000

Version ID : 00010

Vendor ID(Pericom): 000

02H

Control

Read/

Write

00011111

Reserved:

-Read xxx

-Write 000

Switch Open

Reserved:

Manual Switch

Reserved

Global

Interrupt

Mask

0: Open all

switches

0: Manual

configuration

0: Does not

Mask

Interrupts

1: Switch

based on

detection

1: Automatic

configuration

1: Mask

Interrupts

03H

Interrupt

Read/

Clear

00000000

OVP&OCP

Recovery

OCP Event

OVP Event

Reserved

Detach

Attach

0: OVP and/or

OCP event not

recovered

0: No OCP

event

0: No OVP

event

0: No Interrupt

1: OVP and/or

OCP event

recovered

1: OCP

event

1: OVP

event

Reserved:-Read xxx, -Write 000

1: accessory

detached

1: accessory

attached

05H

Interrupt

Mask

Read/

Write

00000000

OVP&OCP

OCP

OVP

Reserved

Detach

Attach

0: No Interrupt Mask

1: Mask

OVP&OCP

Recovery

interrupt

1: Mask

OCP Event

interrupt

1: Mask

OVP Event

interrupt

Reserved:-Read xxx, -Write 000

1: Mask

Detach

interrupt

1: Mask

Attach

interrupt

To be continued.

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2014-04-0004 PT0502-1 04/28/14

6

PI3USB9281

USB 2.0 Port Protection with Charger Detection

Register Map (Continuously.)

Note: Register address 04H, 06H, 07H, 08H, 09H, 0BH, 0CH, 0DH, 0FH, 10H, 11H, 12H, 14H, 15H, 16H, 17H, 18H, 19H, 1AH,

1CH, 1EH, 1FH, 20H and 21H are reserved

Address

Register

Type

Reset

Value

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

0AH

Device

Type

Read

00000000

Reserved

USB

Charging

(DCP)

USB

Charging

(CDP)

Car Kit

Charger

Reserved

USB Data

(SDP)

OTG

MHL

0: No Detect

Reserved

1: USB

dedicated

charging port

(DCP)

detected

1: USB

charging

downstream

port (CDP)

detected

1: USB

Car Kit

Charger

detected

Reserved

1: USB

standard

downstream

port (SDP)

detected

1: USB OTG or

Unidentified

Devices detected

1: MHL

detected

0EH

Charger

Status

Read

00000000

Reserved:

-Read xxx

-Write 000

Apple Charger Type

Charger Type

0: No Detect

00: No connection

1: 2.4A

Apple

charger

detected

1: 2A

Apple

charger

detected

1: 1A

Apple

charger

detected

01: Reserved Charger

10: Car Kit charger type1

11: Car Kit charger Type 2

13H

Manual

Switch

Read/

Write

00000000

D- Connection

D+ Connection

V

BUS

Connection

000: Open D- switch

001: D- connected to DNH of USB port

000: Open D+ switch

001: D+ connected to DPH of USB port

00: Open VBUS switch

11: V

BUSOUT

connected to V

BUSIN

1BH

Reset

Read/

Write

x0001000

Reserved: -Read xxxxxxx, -Write 0000000

Reset

0: No Reset

1: Reset

(Always

reads 0)

1DH

VBUS

Read

00000000

Reserved: -Read xxxxxx, -Write 000000

V

BUSIN

Valid

Reserved:

-Read x,

-Write 0

0: V

BUSIN

Not

Valid

1: V

BUSIN

Valid

PI3USB9281GEEX

PI3USB9281GEEX

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