PI5USB1457BZAE [DIODES]

Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, 2 X 2 MM, 0.75 MM HEIGHT, GREEN, MO-229, TDFN-8;


型号：	PI5USB1457BZAE
厂家：	DIODES INCORPORATED
描述：	Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, 2 X 2 MM, 0.75 MM HEIGHT, GREEN, MO-229, TDFN-8 光电二极管
文件：	总7页 (文件大小：685K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

COMPANY CONFIDENTIAL

PI5USB1457

USB Charger Controller supporting

SDP, CDP, and DCP per BC1.2 spec

Features

Description

ꢀÎUSB charger controller that supports SDP, DCP and

Notebook PCs are used around the world to charge battery-pow-

ered handheld devices such as cell phones and MP3/MP4 players.

Hand-held devices require communication with the notebook

PC before they start to draw current. is ensures that the hand-

held device will obtain suﬃcient current when it wants to charge.

e issue is that the notebook PC does not have a way to provide

this acknowledge signal to the handheld device when the note-

book is in “Sleep” mode.

CDP modes

à DCP (Dedicated charger port) is used when

enumeration is not available

à CDP (Charging downstream port) is used when

enumeration is available, but FAST charging is

requested

à SDP (Standard downstream port) is used for systems

that can only support 500mA across Vbus

ꢀÎSingle Power Supply, 5V 10%

Pericom’s PI5USB1457(*/A/B) solves this issue by setting the D+/

D- pins in the notebook PC to the required signal levels during

“sleep” mode. When the handheld device sees these required sig-

nal levels, it will then start to draw the current required to charge

itself.

ꢀÎIntegrated ESD protection up to +/- 4kV contact on pins

2 and 3 per IEC61000-4-2 spec

ꢀÎDetects and diﬀerentiates between mouse/keyboard (USB

Low/Full Speed device) when in Sleep and Charge mode

(USB1457 and USB1457A versions only)

Cell phones within today’s market use diﬀerent communication

schemes, so the switch will need to conﬁgure itself in diﬀerent

modes. PI5USB1457 (*/A/B) can alternate between modes auto-

matically, once device type is correctly detected.

ꢀÎProvides multiple modes of charging to ensure all of the

following spec's can be met:

à USB Battery Charger 1.2 spec

à USB Battery Charger 1.1 spec

D+, D- and Vbus pins are protected with Pericom’s ESD protec-

tion circuits supporting ESD damage as high as +/-4kV contact

per IEC61000-4-2 speciﬁcation.

à USB Battery Charger 1.0 spec

à YD/T-1591 charger spec

à Certain modes available can also support devices using

non-standard approaches to charging, such

as Apple products and RIM/Blackberry products

ꢀÎPackaging (Pb-free & Green):

à 8-Contact TDFN, ZAE (2.0mm x 2.0mm x 0.75mm)

Block Diagram

INT or INT/

Power Switch

Y-

Y+

References

Control

D+

D-

Plug/Unplug &

Mode Detection

Control

Logic

Notes:

CTL is only oﬀered on PI5USB1457B version on pin 1.

INT is only oﬀered on PI5USB1457A version on pin 1

INT/ is only oﬀered on PI5USB1457 version on pin 1

SB/ CTL SEL

www.pericom.com

P-0.1

06/27/13

13-0029

COMPANY CONFIDENTIAL

PI5USB1457

USB Charger Controller IC

Pin Configuration 8-Pin TDFN (ZAE)

GND

Pinout Table

I/O

PI5USB1457 PI5USB1457A PI5USB1457B Name Type Description

p-mosfet open source output. When SB/ observes a logic

change (from H to L or from L to H). INT/ is high for ~

2.1 seconds, otherwise INT/ is hi-z. External pull-down

is required.

INT/

n-mosfet open drain output. When SB/ observes a logic

change (from H to L or from L to H). INT is LOW for ~

2.1 seconds, otherwise, INT is hi-z. External pull-up is

required.

INT

CTL

Input control logic (See truth table)

D-

I/O

USB Connector, D- connection

USB Connector, D+ connection

Input control logic (See truth table)

D+

SEL

Power

I/O

5V power supply

V_DD

Y+

Host USB transceiver (if existent) D+ connection

Host USB transceiver (if existent) D- connection

Y-

I/O

Control input to switch between S0 charging or sleep

and charge

SB/

Ground Exposed Pad. Connect EP to ground.

www.pericom.com

P-0.1

06/27/13

13-0029

COMPANY CONFIDENTIAL

PI5USB1457

USB Charger Controller IC

Truth Tables

PI5USB1457 and PI5USB1457A

pin 1 role (INT

or INT/)

SB/ (pin 8) SEL(pin 4)

Feature

Auto S & C without mouse/keyboard pass through

Auto S & C with mouse/keyboard pass through

S0 charging with SDP only

INT or INT/

S0 charging with CDP or SDP only (depending on external device) INT or INT/

Test Mode, M = V_DD/2= (1/2)*V_DD

M= (1/2)*V_DD

PI5USB1457B

SB/ (pin 8) CTL (pin 1) Feature

pin 4 role (SEL)

Auto S & C

0: without mouse/keyboard pass through

1: Not Allowed

Auto S & C

S & C with manual mode

S0 charging enabled

power down

0: BC1.1 only

1: Apple only

0: SDP only

1: SDP/CDP depending on external device

0: SDP only

1: IC power oﬀ with all I/Os hi-z

M = (1/2)*V_DD

test mode

Detailed Feature Description

Sleep and Charge Mode enabled

When the PI5USB1457 (*/A/B) is conﬁgured into auto mode with sleep and charge enabled (see truth table to understand how to

conﬁgure into auto mode), the charger controller will manage all communication with external devices to enable charging to occur.

First, Pericom’s IC will use load sensing techniques to detect when a device has been plugged in.

Once a device is properly detected, the Pericom IC will automatically switch to the appropriate charging mode required for the

speciﬁc external USB device that was detected.

Mouse/Keyboard pass through mode Explanation

Since USB1.1 devices do not integrate charging protocols, there is no special charging mode required to support charging the

device. erefore, if a USB Low-Speed external device is detected, then Pericom’s solution will simply connect D+/- from the USB

connector directly to the USB host controller.

www.pericom.com

P-0.1

06/27/13

13-0029

COMPANY CONFIDENTIAL

PI5USB1457

USB Charger Controller IC

System wake-up via external mouse or keyboard

Today’s systems are enabled to wake up from S3 mode if a pre-enumerated mouse/keyboard has activity (movement or key-pressed).

In order for the system to continue supporting this feature, the USB host controller must be able to communicate with the external

device in S3 mode. erefore, if a mouse/keyboard is detected (via the USB low speed pass through feature), Pericom’s PI5USB1457

family will enable the communication between device and controller. Our device will automatically pass the signals through with

minimal degradation.

CDP mode description

When the PI5USB1457 family is conﬁgured into CDP mode (see truth table to understand how to conﬁgure into CDP mode), D+/-

is connected to Y+/-, allowing communication/enumeration to occur between USB host controller and USB device. e Pericom

device will continue to monitor D+ for contact detection and to start CDP charging.

Once contact detection has been observed, then CDP enumeration will occur. e external device must initiate the charge-set

up, and once the Pericom device correctly observes the required command, the PI5USB1457 family will respond to complete the

charge-set up.

Electrical Parameters/Characteristics Recommended Operation Conditions

Parameter

Min.

-40

Typ.

Max. Unit

Ambient Operating Temperature

+85

ºC

+4.5

+5.5

V_DDPower Supply Voltage (measured in respect to GND)

DC Electrical Characteristics (V_DD= 5.0V +/- 10%, Ambient Temperature -40 to +85^oC)

Symbol

Parameter

Conditions

Min.

Typ. Max. Unit

Operating Voltage

4.5

5.5

V_DD

SB/ = Low, SEL = Low

CTL (*B only) = don’t care

250

300

SB/ = Low, SEL = High

CTL (*B only) = don’t care

300

Supply Current

I_DD

V_DD= 5.25V

SB/ = High, SEL = Low

CTL (*B only) = don’t care

µA

SB/ = High, SEL = High

CTL (*B only) = don’t care

115

165

Power Down Mode enabled (only available

on *B version

SEL = SB/ = CTL = HIGH, V_DD= 5.25V

Quiescent Supply Current

I_DDQ

Input High Voltage

Input Low Voltage

SB/, CTL

1.4

V_IHfor SB+CTL

V_ILfor SB+CTL

SB/, CTL

0.4

Input High Voltage

Input Low Voltage

Output high voltage

For SEL pin

_DD= 5V

3.2

2.4

V_IHfor SEL

V_ILfor SEL

V_OHfor INT/

V_OLfor INT

0.8

For INT/ pin PI5USB1457ZAE only

For INT pin PI5USB1457AZAE only

0.55

www.pericom.com

P-0.1

06/27/13

13-0029

COMPANY CONFIDENTIAL

PI5USB1457

USB Charger Controller IC

DC Electrical Characteristics (V_DD= 5.0V +/- 10%, Ambient Temperature -40 to +85^oC) Cont..

Symbol

Parameter

Conditions

Min.

Typ. Max. Unit

Switch On-Resistance for

USB 2.0 HS signal (From

D to Y )

V_DD= 4.5V, -0.4V < V_INPUT< +0.4V,

I_INPUT= +30mA, SB/ = High

R_ON

Switch On-Resistance for

USB 2.0 FS signal (From

D to Y )

V_DD= 5.0V, 0V < V_INPUT< 3.3V

I_INPUT= -15mA , SB/ = High

R_ON

I/O leakage on signal pins

(D , Y ) current when

port is oﬀ

+/-10

µA

I_OZ

V_DD= 5.5V, V_INPUTfrom 0V to 3.6V

V_DD= 0V, V_INPUTfrom 0V to 5.5V

Signal leakage on signal

pins (D , Y ) when chip

is oﬀ

I_OFF

Capacitance (For typical spec T_A= 25ºC, for max spec T_A= -40 to +85^oC, f = 1MHz)

Parameter

Description

Test Condition

Typ. Max. Unit

Control Logic Capacitance

2.7

3.5

C_IN

Switch Capacitance at D or Y when

switch is OFF

_OFF- USB path

SB/ = low

3.1

3.5

only

CON - USB path

only

Switch Capacitance between D+/- to

Y+/- when switch is ON

SB/ = high

6.0

6.5

Dynamic Electrical Characteristics Over the Operating Range

Parameter

XTALK

OIRR

Description

Crosstalk

Test Condition

Min.

Typ.

-30

Max. Units

R_L= 50Ω, freq = 240MHz

Oﬀ-Isolation

-30

-3dB Bandwidth (along D+/-

path)

-3dB BW

1,350

R_L= 50Ω

MHz

-0.5dB Bandwidth (along D+/-

path)

-0.5dB BW

IN_LOSS

350

R_L= 50Ω

Insertion loss (along D+/- path)

freq = 240MHz

0.57

www.pericom.com

P-0.1

06/27/13

13-0029

COMPANY CONFIDENTIAL

PI5USB1457

USB Charger Controller IC

CDP Mode

Symbol

Parameter

Test Condition

Min

0.5

Max

0.7

Units

V_D-_SRC

V_D+_SINK

Voltage source on D- for CDP detect

D+_IN sink current

V_D-= 0.6V

150

0.4V < = V_D-< 0.8V

Parameter

Description

Test Condition(1)

Min Typ Max Units

Tpd

Propagation delay

0.3

Output skew, bit to bit

(Between + and - of same

pair)

Intra-Pair

Skew

See Test Circuit for Electrical Characteristics

Turn on time for USB path C_L= 35pF, R_L= 300W

Turn oﬀ time for USB path C_L= 35pF, R_L= 300W

0.5

T_ON

0.25

T_OFF

Figure 1: Test Circuit for Electrical Characteristics

D+/-

OUT

orY+/-

35pF

300-Ohm

GND

LOGIC

INPUT

_LINCLUDES FIXTURE AND STRAY CAPACITANCE

Notes:

1. C_L= Load capacitance: includes jig and probe capacitance.

2. R_T= Termination resistance: should be equal to Z_OUTof the Pulse Generator

3. All input impulses are supplied by generators having the following characteristics: PRR ≤ MHz, Z_O= 50Ω, t_R≤ 2.5ns, t_F≤ 2.5ns.

Test Circuit for Dynamic Electrical Characteristics

Network Analyzer

Port 2

Port 1

DUT

www.pericom.com

P-0.1

06/27/13

13-0029

COMPANY CONFIDENTIAL

PI5USB1457

USB Charger Controller IC

Packaging Mechanical: 8-Pin TDFN (ZAE)

DATE: 08/08/12

Notes:

DESCRIPTION: 8-contact, Thin Dual-in-Line Flat Package (TDFN)

1. All dimensions are in mm. Angles in degrees.

2. Coplanarity applies to the exposed pad as well as the terminals.

3. Refer JEDEC MO-229

PACKAGE CODE: ZA8

4. Thermal pad soldering area (mesh stencil design is recommended)

DOCUMENT CONTROL #: PD-2068

REVISION: C

13-0126

Ordering Information

Ordering Code

Package Code

Package Description

Top Mark

PI5USB1457ZAE

PI5USB1457AZAE

PI5USB1457BZAE

ZAE

Pb-free & Green, 8-pin TDFN

Notes:

• ermal characteristics can be found on the company web site at www.pericom.com/packaging/

• E = Pb-free and Green

• X suﬃx = Tape/Reel

Pericom Semiconductor Corporation • 1-800-435-2336

www.pericom.com

P-0.1

06/27/13

13-0029

PI5USB1457BZAE [DIODES]

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