PI5USB1457AZAEX [DIODES]
Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, 2 X 2 MM, 0.75 MM HEIGHT, GREEN, MO-229, TDFN-8;型号: | PI5USB1457AZAEX |
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
2
3
4
2
3
1
1
1
1
D+
D-
2
3
2
3
4
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
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P-0.1
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13-0029
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COMPANY CONFIDENTIAL
PI5USB1457
USB Charger Controller IC
Pin Configuration 8-Pin TDFN (ZAE)
7
7
7
6
3
5
4
6
3
5
4
6
5
4
8
1
8
1
8
1
GND
GND
GND
2
2
2
3
Pinout Table
Pin
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.
1
*
*
INT/
O
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.
*
*
1
*
INT
CTL
O
I
1
Input control logic (See truth table)
2
3
4
2
3
4
2
3
4
D-
I/O
I/O
I
USB Connector, D- connection
USB Connector, D+ connection
Input control logic (See truth table)
D+
SEL
5
6
7
5
6
7
5
6
7
Power
I/O
5V power supply
VDD
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
8
9
8
9
8
9
SB/
EP
I
Ground Exposed Pad. Connect EP to ground.
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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
0
0
1
1
0
0
Auto S & C without mouse/keyboard pass through
Auto S & C with mouse/keyboard pass through
S0 charging with SDP only
INT or INT/
INT or INT/
INT or INT/
1
0
1
S0 charging with CDP or SDP only (depending on external device) INT or INT/
Test Mode, M = VDD/2 = (1/2)*VDD
M= (1/2)*VDD
PI5USB1457B
SB/ (pin 8) CTL (pin 1) Feature
pin 4 role (SEL)
0
0
0
0
1
1
1
1
0
0
0
1
1
0
0
1
1
x
Auto S & C
0: without mouse/keyboard pass through
1: Not Allowed
Auto S & C
S & C with manual mode
S & C with manual mode
S0 charging enabled
S0 charging enabled
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)*VDD
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.
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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
V
+4.5
+5.5
VDD Power Supply Voltage (measured in respect to GND)
DC Electrical Characteristics (VDD = 5.0V +/- 10%, Ambient Temperature -40 to +85oC)
Symbol
Parameter
Conditions
Min.
Typ. Max. Unit
Operating Voltage
4.5
5.5
V
VDD
SB/ = Low, SEL = Low
CTL (*B only) = don’t care
250
250
50
300
SB/ = Low, SEL = High
CTL (*B only) = don’t care
300
75
Supply Current
IDD
VDD = 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, VDD = 5.25V
Quiescent Supply Current
16
25
IDDQ
Input High Voltage
Input Low Voltage
SB/, CTL
1.4
VIH for SB+CTL
VIL for SB+CTL
SB/, CTL
0.4
V
Input High Voltage
Input Low Voltage
Output high voltage
Output high voltage
For SEL pin
For SEL pin
V
DD = 5V
3.2
2.4
VIH for SEL
VIL for SEL
VOH for INT/
VOL for INT
0.8
For INT/ pin PI5USB1457ZAE only
For INT pin PI5USB1457AZAE only
V
V
0.55
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COMPANY CONFIDENTIAL
PI5USB1457
USB Charger Controller IC
DC Electrical Characteristics (VDD = 5.0V +/- 10%, Ambient Temperature -40 to +85oC) Cont..
Symbol
Parameter
Conditions
Min.
Typ. Max. Unit
Switch On-Resistance for
USB 2.0 HS signal (From
D to Y )
VDD = 4.5V, -0.4V < VINPUT < +0.4V,
IINPUT = +30mA, SB/ = High
3
5
RON
W
Switch On-Resistance for
USB 2.0 FS signal (From
D to Y )
VDD = 5.0V, 0V < VINPUT < 3.3V
IINPUT = -15mA , SB/ = High
7
RON
I/O leakage on signal pins
(D , Y ) current when
port is off
+/-10
+/-10
µA
µA
IOZ
VDD = 5.5V, VINPUT from 0V to 3.6V
VDD = 0V, VINPUT from 0V to 5.5V
Signal leakage on signal
pins (D , Y ) when chip
is off
IOFF
Capacitance (For typical spec TA = 25ºC, for max spec TA = -40 to +85oC, f = 1MHz)
Parameter
Description
Test Condition
Typ. Max. Unit
Control Logic Capacitance
2.7
3.5
CIN
Switch Capacitance at D or Y when
switch is OFF
C
OFF - USB path
SB/ = low
3.1
3.5
pF
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
RL = 50Ω, freq = 240MHz
RL = 50Ω, freq = 240MHz
dB
Off-Isolation
-30
-3dB Bandwidth (along D+/-
path)
-3dB BW
1,350
RL = 50Ω
MHz
dB
-0.5dB Bandwidth (along D+/-
path)
-0.5dB BW
INLOSS
350
RL = 50Ω
Insertion loss (along D+/- path)
freq = 240MHz
0.57
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COMPANY CONFIDENTIAL
PI5USB1457
USB Charger Controller IC
CDP Mode
Symbol
Parameter
Test Condition
Min
0.5
Max
0.7
Units
V
V_D-_SRC
V_D+_SINK
Voltage source on D- for CDP detect
D+_IN sink current
VD- = 0.6V
50
150
uA
0.4V < = VD- < 0.8V
Parameter
Description
Test Condition(1)
Min Typ Max Units
Tpd
Propagation delay
0.3
ns
Output skew, bit to bit
(Between + and - of same
pair)
Intra-Pair
Skew
See Test Circuit for Electrical Characteristics
10
ps
Turn on time for USB path CL = 35pF, RL = 300W
Turn off time for USB path CL = 35pF, RL = 300W
0.5
TON
ms
0.25
TOFF
Figure 1: Test Circuit for Electrical Characteristics
V
DD
V
DD
NC
D+/-
V
IN
V
OUT
orY+/-
R
C
35pF
L
L
300-Ohm
SB
GND
LOGIC
INPUT
C
L INCLUDES FIXTURE AND STRAY CAPACITANCE
Notes:
1. CL = Load capacitance: includes jig and probe capacitance.
2. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator
3. All input impulses are supplied by generators having the following characteristics: PRR ≤ MHz, ZO = 50Ω, tR ≤ 2.5ns, tF ≤ 2.5ns.
Test Circuit for Dynamic Electrical Characteristics
Network Analyzer
Port 2
Port 1
DUT
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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
ZAE
ZAE
Pb-free & Green, 8-pin TDFN
Pb-free & Green, 8-pin TDFN
Pb-free & Green, 8-pin TDFN
UX
UB
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
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