PI5USB8000Q

PI5USB8000Q
USB Power Switch with Pericom's FAST Charger
Circuitry for DCP, CDP, and 2A iPad support
Features
Description
ÎÎAEC-Q100 qualified
Type A USB connectors are found in 100% of PCs as well as
in wall chargers that are shipped with all of the latest popular
hand-held devices that require charging. All of the connectors
physically look the same, however, their behavior is different.
When a user tries to connect an iPAD into a notebook USB port
vs. a USB charger that came with the iPAD, one can instantly
observe a different behavior. This is because the communication
protocol of a standard PC USB port vs. a dedicated Apple-iPAD
USB port is different and it is this communication that enables
the iPAD to charge efficiently. The same can be seen by other
popular phones and tablets.
ÎÎUSB charger controller that supports SDP, DCP and CDP
per USB BC 1.0, 1.1, and 1.2 specfication
ÎÎDCP (Dedicated charger port) is used when enumeration
is not available
ÎÎCDP (Charging downstream port) is used when
enumeration is available and FAST charging is requested
ÎÎSDP (Standard downstream port) is used for systems
with standard USB host ports
ÎÎSupport for YD/T-1591(Chinese Telecom Standard)
ÎÎSupport for non-standard charging such as Apple-1A and
There are Apple-1A modes of communication, Apple-2A modes
of communication, communication described by the Chinese
Telecom standard, YD/T-1591, and communication described
by the USB Battery Charging Spec. In order to support all popular phones, all communication protocols must be supported.
Apple-2A
ÎÎIntegrated 85mΩ MOSFET with thermal and Short-circuit
protection
ÎÎAdjustable Current Limit from 1.1A to 2.8A
ÎÎSingle Power Supply, 5V +/-5%
ÎÎFast response time for over-current detection, 4us (typ)
Pericom’s PI5USB8000Q is able to offer anybody designing a
USB port meant to charge external devices with all communication protocols in a single IC. The PI5USB8000Q can detect the
communication language required and then automatically enable charging to occur with different external USB devices.
ÎÎDe-glitched Fault Report (FAULT)
ÎÎIntegrated ESD protection up to +/- 4kV contact on pins 10
and 11 per IEC61000-4-2 spec
ÎÎDetects when device is plugged in or out when in “DCP/
AutoDetect” mode and provides output signal (PE/)
ÎÎMouse/Keyboard wake-up support (see truth table)
ÎÎUL certtified, E341484
2
3
ILIM_SEL
4
1
GND
FAULT
13
PAD
5
6
12
OUT
11
D-P
10
D+P
7
8
CTL3
D-H
D+H
16 15 14
CTL2
1
EN
CTL1
In
GPS/N
tainme
fo
Center
nt
n
14-0009
iagatio
av
IN
ILIM0
Pin Diagram: (Top View)
ILIM1
Reference Diagram
9
PE
www.pericom.com05/08/14
PI5USB8000Q
USB Power Switch with Pericom's FAST Charger
Circuitry for DCP and CDP support
Reference Diagram
PI5USB8000Q
4.75V to 5.25V
Block Diagram
Current
Sense
Under-Voltage
Monitor
Thermal
Sense
IN
1
D-H
2
D+H
3
ILIM_SEL
4
5
6
D-H
Charging Mode
Control
Device Recogition
EN
14-0009
D-P
PE/
ILIM_SEL
CTL1 CTL2
CTL3
2
OUT
11
D-P
10
D+P
8
D+P
Communication
(CDP, SDP, DCP)
12
7
2:1 Mux
D+H
13
PAD
EN
CTL1
De-glitch
16 15 14
FAULT
Discharge
Control
GND
Driver
Current
Limit
CTL3
EN
ILM1
Charge
Pump
Current Limit
Select
OUT
CTL2
ILIM_SEL
ILM0
IN
FAULT
GND
ILIM1 ILIM0
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9
PE
PI5USB8000Q
USB Power Switch with Pericom's FAST Charger
Circuitry for DCP and CDP support
Pin Description
Pin No.
Pin Name
I/O Type
Description
1
IN
Power Input
5V Input Voltage: connect a 0.1µF or greater ceramic capacitor from IN to GND as
close to the IC as possible
2
D-H
I/O
D-data line to USB host controller
3
D+H
I/O
D+data line to USB host controller
4
ILIM_SEL
I
Control input signal used to dynamically change power switch current-limit
threshold: Logic Low selects ILIM0, logic High selects ILIM1
this pin has an internal pull-down
5
EN
I
Control input for turning entire IC on/off (including the Power switch), Logic High
configures charger controller into normal operation, Logic Low turns the IC off,
which will put the USB signal path into High-Z and the power switch will shut off
the OUT pin and the OUT cap will be discharged by the Pericom IC.
6
CTL1
I
Control input for controlling charging mode, See truth table
7
CTL2
I
Control input for controlling charging mode, See truth table
8
CTL3
I
Control input for controlling charging mode, See truth table
9
PE
O
Open drain output telling system when device is connected
10
D+P
I/O
D+ data line to external USB Port
Pin No.
Pin Name
I/O Type
Description
11
D-P
I/O
D- data line to external USB Port
12
OUT
Power
Output
Power-Switch Output
13
FAULT
O
Active-low open drain output, asserted during over temperature, low VOUT
14
GND
Ground
Ground connection : should be connected externally to POWERPAD
15
ILIM0
I
External Resistor used to set current limit threshold when ILIM_SEL logic Low
16K≤ RILIM ≤ 50K
16
ILIM1
I
External Resistor used to set current limit threshold when ILIM_SEL logic High;
16K≤ RILIM ≤ 50K
NA
Center Pad
Ground
Internally connected to GND: Used to heat-sink the part to the circuit board-traces.
Should be connected to GND pin
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PI5USB8000Q
USB Power Switch with Pericom's FAST Charger
Circuitry for DCP and CDP support
System State
CTL1
CTL2
CTL3
Mode
S4/S5
0
0
0
IC power down with all I/O’s High-z
S4/S5
0
0
1
DCP/Auto detect w/ USB/Keyboard pass
through disabled
S3
0
1
0
D+/- pass through mode (D+/-P connects
to D+/-H)
S3
0
1
1
DCP/Auto detect w/ USB/Keyboard pass
through enabled
Test mode
1
0
0
DCP, BC Specification 1.1 only
Test Mode
1
0
1
DCP, Apple 1A only
S0
1
1
0
SDP enabled
S0
1
1
1
CDP or SDP (if device does not support
CDP) enabled
7.1
Plug in Detection
During PowerNAP mode (charing when system is in S3/S4/S5), Pericom can detect when an external device is connected or not. This
feature can help save system power when nothing is connected externally. Using Pericom’s PE/ open drain output flag, the system
could disable higher current supplies when no external device is connected. Once an external device is connected, Pericom’s PE/ output flag can inform the system and then in-turn, the system could enable the higher current power supply to enable charging.
Next, the Pericom device will detect what type of device is plugged in (BC1.0 device vs. BC1.1 vs. BC1.2 device vs. Apple device vs.
YD/T 1591) and then we will automatically switch to required communication mode to properly communicate with the device to
initiate charging. Finally Pericom will continue to monitor Vbus for over current scenarios and over temperature scenarios and at the
same time we will also detect D+/D- load for plug-out detection. Please note, Plug in detection ONLY works when device is in sleep
and charge mode.
7.2
Plug out Detection
Once plug-out is detected, then PE/ will once again be pulled high (through external pull-up) and current sensing will resume to determine if a device is plugged in or not. When plug-out detection is not working, PE/ is always pulled high through external pull-up.
Plug-out will not work if sleep and charge is not enabled.
7.3
Mouse/Keyboard pass through mode
Since USB1.1 devices do no integrate charging protocols, there is no special charging mode required to support charging the device.
Therefore, 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. The detection process for mouse/keyboard will occur ~1.8 seconds after the Pericom solution
enters DCP/auto detect with USB/keyboard pass through enabled mode, which is when CTL1 = 0, CTL2 = 1, and CTL3 = 1. If a low
speed device is detected as "attached" at that point, then the pass through mode will be enabled and D+/-P will connect to D+/-H. If
the mouse/keyboard is disconnected, while the Pericom's PI5USB8000Q remains in the 011 mode, the device will enter auto-charging mode and will enable the PE/ output pin to detect if an external device is connected or not.
Only in auto-charging mode does Pericom ensure all external battery powered devices will succesfully charge.
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PI5USB8000Q
USB Power Switch with Pericom's FAST Charger
Circuitry for DCP and CDP support
7.3.1 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.
D-H
2
D+H
3
ILIM_SEL
4
FAULT
GND
16 15 14
13
PAD
5
6
12
OUT
11
D-P
10
D+P
7
8
CTL3
1
CTL2
IN
ILM1
Recommended Part Configuration
EN
CTL1
7.4
ILM0
Therefore, if a mouse/keyboard is detected (via the USB low speed pass through feature), Pericom’s PI5USB8000Q will enable the
communication between device and controller. Our device will automatically pass the signals through with minimal degradation.
9
PE
With the above design,
•
In S0 mode, setting will be (CTL1,2,3) 1, 1, 1:
CDP mode enabled
•
In S3 mode, setting will be (CTL1,2,3) 0, 1, 1:
DCP with mouse/keyboard pass through enabled
•
In S4/S5 mode, setting will be (CTL1,2,3) 0, 0, 1:
DCP with mouse/keyboard pass through disabled
•
If customer wants to disable charging (perhaps battery power is too low), then CTL3 should be connected to logic Low.
•
In S0 mode, setting will be (CTL1,2,3) 110:
normal charging (SDP)
•
In S3 mode, setting will be (CTL1,2,3) 010:
Charging is bypassed
•
In S4/S5 mode, setting will be (CTL1,2,3) 000: USB port is completely disabled
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PI5USB8000Q
USB Power Switch with Pericom's FAST Charger
Circuitry for DCP and CDP support
7.5
CDP mode description
When PI5USB8000Q is configured into CDP mode (see truth table to understand how to configure into CDP mode), D+/-H is connected to D+/-P, allowing communication/enumeration to occur between USB host controller and USB device. The Pericom device
will continue to monitor D+ for primary detection and then respond with an acknowledgement on D- (with proper timing) to
initiate CDP charging to occur. For secondary detection per the Battery Charger 1.2 spec, Pericom will allow the GND signal from
15Kohm pull-down in the USB controller pass through to the port. Therefore when the cell phone sends 0.6V signal on D-, it will
see a GND signal on D+, which will provide a VALID response for CDP, secondary detection.
Once CDP communication has been initiated by external device, the Pericom IC will provide the acknowledge command without
affecting USB signal integrity. This acknowledge command will let the external device know that the USB port (Charging downstream port) can support a minimum of 1.5A (per the USB1.2 battery charging spec). The user can set two current limit values, and
then by using ILIM_SEL, the user can switch between which limit they would like to use.
Charging Downstream Port (CDP) is the communication protocol found in high charging PCs. These connectors allow USB data to
be transferred between the CDP and the external device as well as allow charging to occur up to a max of 1.5A. The actual current
draw is managed by the external device, the CDP only limits the max current draw from 1.5A. The communication protocol of CDP
is described in the USB Battery Charging Spec revision 1.2. Pericom is able to support this communication.
SDP
Standard Downstream Port (SDP) is the communication protocol found in traditional USB connectors in PCs. These connectors
allow USB data to be transferred between the SDP and the external device as well as allow charging to occur up to a max of 500mA.
The communication protocol of SDP is described in the USB2.0 and USB3.0 specifications from the USB organization.
Maximum Ratings
(Above which useful life may be impaired. For user guidelines, not tested.)
Storage Temperature......................................................... –65°C to +150°C
Supply Voltage to Ground Potential.................................. –0.5V to +6.0V
DC Input Voltage ........................................................... -0.5V to VDD+0.5V
DC Output Current............................................................ 120mA
Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or any
other conditions above those indicated in the operational sections
of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Recommended Operation Conditions
Parameter
Min.
Typ.
Max.
Unit
Ambient Operating Temperature
-40
+25
+85
ºC
IN Power Supply Voltage (measured in respect to GND)
+4.75
+5
+5.25
V
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PI5USB8000Q
USB Power Switch with Pericom's FAST Charger
Circuitry for DCP and CDP support
Electrical Characteristics (Ambient Temperature -40 to +85ºC)
Symbol
Parameter
Conditions
Min
Operating Voltage
VIN
4.75
VIN = 5.25V,
VEN = 5V
Supply Current
IDD
Typ (1) Max
DCP mode
enabled
5.25
External device
connected
330
External device
not connected
154
SDP mode enabled
173
CDP mode enabled
215
IDDQ
Quiescent Supply Current
Power Down Mode enabled, VIN = 5.25V,
VEN = 0V, CTLx = 0V, ILIM_SEL = High
VIH
Input High Voltage
CTL1, CTL2, CTL3, EN
VIL
Input Low Voltage
CTL1, CTL2, CTL3, EN
VIH
Input High Voltage
ILIM_SEL
VIL
Input Low Voltage
ILIM_SEL
RON
Switch On-Resistance for
USB 2.0 HS signal (From
D+/-H to D+/-P )
VIN = 5V., -0.4V < VINPUT(on D+/- path) < +0.4V,
IINPUT(on D+/- path) = +30mA
2.5
RON
Switch On-Resistance for
USB 2.0 FS signal (From
D+/-H to D+/-P )
VIN = 5V, 0V < VINPUT < 3.3V IINPUT = -15mA
3.5
R DSON
Switch On-Resistance for
Vbus path during normal
operation
VIN = 5V, IO = 1.5A, VINPUT = 5V
85
I/O leakage on signal pins
(D+/- H, D+/-P) current
when port is off
VIN = 5.25V, VINPUT from 0V to 3.6V
IOZ
V
µA
250
19
1.4
0.4
2.4
0.6
V
V
4
Ω
6
mΩ
+/-2
µA
Signal leakage on signal
pins (D+/- H, D+/-P) when VIN = 0V, VINPUT from 0V to 5.25V
chip is off
IOFF
Unit
20
Notes: (1) Typical are at VDD = 5V, TA = 25 ºC ambient and maximum loading.
Capacitance (TA = -40 to +85ºC, f = 1MHz)
Parameter
Description
Test Condition
CIN
Control Logic Capacitance
COFF - USB path only
Switch Capacitance across D+/- path when
switch is OFF
CON - USB path only
Switch Capacitance across D+/- path when
switch is ON
Typ
Max
Unit
2.5
3.4
pF
EN = LOW
3.1
3.4
pF
EN= High
6.0
pF
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PI5USB8000Q
USB Power Switch with Pericom's FAST Charger
Circuitry for DCP and CDP support
Dynamic Electrical Characteristics Over the Operating Range (differential)
Parameter
Description
Test Condition
Min
Typ
XTALK
Crosstalk
RL = 50Ω, freq = 240MHz
-29
OIRR
Off-Isolation
RL = 50Ω, freq = 240MHz
-28
-3dB BW
-3dB Bandwidth (along D+/- path)
RL = 50Ω
1400
-0.5dB BW
-0.5dB Bandwidth (along D+/- path)
RL = 50Ω
470
INLOSS
Insertion loss (along D+/- path)
freq = 240MHz
-0.46
Max
Units
dB
MHz
dB
(T = 25ºC, Vin = 5V, R = 20Kohm, VILIM= 0V, unless otherwise noted)
Symbol
Input
Parameter
Input Current, CTL pins
OUT short circuit
Ilim (1)
current limit
Description
Test Condition
Min Typ
-0.5
VCTL = 0V or 5.25V
VILIM_SEL = Logic
Low/ High
Reverse leakage curVOUT = 5.25V, IN = GND
rent
0.5
Units
µA
RRLIM0= 16 kW
3200
mA
RRLIM0= 18 kW
2900
mA
RRLIM0= 22 kW
2400
mA
RRLIM0= 26 kW
2000
mA
RRLIM0= 33 kW
1700
mA
RRLIM0= 50 kW
900
mA
4
µs
0.2
µA
Response time to short-circuit VIN = 5.0V
tIOS
Max
TJ = 25°C
UNDERVOLTAGE LOCKOUT
Low-level input voltage, IN
VIN rising
Hysteresis, IN
TJ = 25°C
3.7
4.6
75
V
mV
OVERCURRENT FAULT
Output low voltage, FAULT
IFAULT = 1mA
180
mV
Off-state current
VFAULT= 5V
1
µA
FAULT de glitch
FAULT de-glitch will filter out the glitches
on FAULT to stabilize the FAULT signal
2
ms
THERMAL SHUTDOWN
Thermal shutdown threshold
135
Recovery from thermal shutdown
120
Hysteresis
10
Thermal shutdown threshold in current limit
°C
130
Notes: (1) I lim is the current level that will limit the OCP block thereby triggering the FET to turn off.
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PI5USB8000Q
USB Power Switch with Pericom's FAST Charger
Circuitry for DCP and CDP support
CDP Mode
Symbol
Parameter
Test Condition
Min
Max
Units
VDM_SRC
Voltage source on D- for CDP detect
VD-P = 0.6V
0.5
0.7
V
IDP_SINK
DP_IN sink current
0.4V < = VD-P < 0.8V
50
150
uA
Parameter
Description
Test Condition(1)
Tpd
Propagation delay(2,3)
Intra-Pair
Skew(2)
Output skew, bit to bit (Between +
and - of same pair)
Min.
See Test Circuit for Electrical Characteristics
Typ.
Max.
Units
0.3
ns
10
ps
Charging times after CTL transition from 110 to 011
Parameter
Description & Test Condition
Min.
Typ.
Max.
Units
IPad Mode
CTL from 110 to 011
1.5
sec
IPhone Mode
CTL from 110 to 011
2.8
sec
Dedicated Mode CTL from 110 to 011
2.8
sec
B o ard D esig n In form atio n :
Application Reccomendations & Reference Design Diagram
P I5U S B 25 43 E V B S ch em atic
+5V
JP 12
VB U S _IN1
C8
R 22
≤50kohms
R 23
≤50kohms
1u F
JP 14
D4
JP 13
1
1
+5V
2
1
R 25
56 0
VB U S _O U T
13
6
C T L1
EN
5
C T L2
PE #
10
D3
PE #
9
2
+5V
1R 24
J3
1
2
3
4
11
56 0
VB U S
DD+
GND
S he llS hell
C5
100u F 22u F
6
C6
VB U S _O U T
5
ILIM _SE L
D +P
OUT
12
1
2
14
GND
F A U LT #
15
U2
D +H
EN
ILIM _SE L
C O N _U SB 2.0_TA _P lug
JP 8
D -P
C T L3
4
D -H
8
3
LE D _G
OUT
C T L3
2
5
S hell
VB U S
DD+
GND
1
2
3
4
IN
C T L1
J4
7
1
C T L2
C 7 0.1u
ILIM 0
+5V
HGND
ILIM 1
17
16
F A U LT#
LE D _R
P I5U SB 25 43
+5V
1
2
JP 11
SW 3
C TL1
1
R 20
10 k
3
R 21
10 k
2
CTL 1
CTL 2
CTL 3
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Mode
S W _SP D T_Togg le_ R T
+5V
SW 4
ILIM _SE L
D SC
1
2
JP 9
1
2
JP 10
C TL2
C TL3
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
R 26
R 27
R 28
R 15
R 16
R 17
R 18
R 19
10k
10k
10k
10k
10k
10k
10k
10k
DCP/Auto detec t WIT HOUT U SB/Ke yboard pass throu gh
DCP/Auto detec t WIT HOUT U SB/Ke yboard pass throu gh
D+/- P con nects to D+ /-H
DCP/Auto detec t WIT H USB/ Keybo ard pa ss th rough
Test mod e - DC P, BC Spec. 1.1 only
Test mod e - Ap ple m ode
SDP enab le
CDP enab le
S W _X8_ H alf_P itch
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PI5USB8000Q
USB Power Switch with Pericom's FAST Charger
Circuitry for DCP and CDP support
TYPICAL CHARACTERISTICS
EYE Diagram using USB compliance test pattern
(with no switch)
EYE Diagram using USB compliance test pattern
(with switch)
Max Current Allowed:
Output Short Circuit Current:
I_Lim vs Rlim; Vin= 5.0V, 25C
14-0009
IOS vs Rlim; Vin= 5.0V, 25C
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PI5USB8000Q
USB Power Switch with Pericom's FAST Charger
Circuitry for DCP and CDP support
TYPICAL CHARACTERISTICS
Insertion Loss vs Frequency
Return Loss vs Frequency
0.00
0.0
-5.0
-1.00
-10.0
-15.0
Return Loss, (dB)
Insertion Loss, (dB)
-2.00
-3.00
-20.0
-25.0
-4.00
-30.0
-5.00
1.00E+07
1.00E+08
1.00E+09
-35.0
1.00E+07
1.00E+10
1.00E+08
1.00E+09
1.00E+10
Frequency(Hz)
Frequency(Hz)
Off Isolation vs Frequency
Cross Talk vs Frequency
-10.0
0.0
-10.0
-20.0
-20.0
-30.0
-40.0
Crosstalk (dB)
Off Isolation (dB)
-30.0
-50.0
-40.0
-50.0
-60.0
-60.0
-70.0
-80.0
1.00E+07
1.00E+08
1.00E+09
-70.0
1.00E+07
1.00E+10
Frequency(Hz)
14-0009
1.00E+08
1.00E+09
1.00E+10
Frequency(Hz)
11
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PI5USB8000Q
USB Power Switch with Pericom's FAST Charger
Circuitry for DCP and CDP support
Packaging Mechanical: 16-Contact TQFN (ZH)
DATE:12/26/13
DESCRIPTION: 16-Contact, Thin Fine Pitch Quad Flat No-Lead (TQFN)
PACKAGE CODE: ZH (ZH16)
REVISION: E
DOCUMENT CONTROL #: PD-2047
14-0244
Ordering Information
Ordering Code
PI5USB8000QZHE
Package Code
Package Description
ZH
16-pin, Thin Fine Pitch Quad Flat No-Lead (TQFN)
Notes:
• Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
• Adding an "E" denotes Pb-free and Green
• Adding an "X" at the end of the ordering code denotes tape and reel packaging
Pericom Semiconductor Corporation • 1-800-435-2336
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