Chrontel CH7231 USB Type-C Electronically Marked Cable

Chrontel CH7231 USB Type-C Electronically Marked Cable
CH7231
Chrontel
Chrontel CH7231 USB Type-C Electronically
Marked Cable Component
Features
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•
•
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•
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•
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General Description
Component for USB Type-C electronically marked
cable (USB Type-C Specification 1.2)
Support USB power delivery specification revision
2.0, version 1.2
Patent pending circuit to support USB power
delivery specification revision 2.0, version 1.2 BMC
cable plug RX mask requirement
The CH7231 supports the USB Type-C Electronically
Marked Cable (E-Marker). The device is designed to
follow the USB Type-C Specification 1.2 and the USB
Power Delivery Specification Revision 2.0, Version 1.2.
The CH7231 is a low cost semiconductor device and can
help the cable manufacturer easily enabling the USB
Power Delivery feature required by USB Type-C E-Mark
On-chip programmable embedded flash to support cable. In order to reduce the cost of the cable material,
The CH7231 integrates all necessary components and
customer specific VDOs
circuits, such as LDO, clock generation, isolation circuit,
On-chip clock generation
Ra, etc. The on-chip embedded flash allows cable to store
Low BOM cost, no external components
VDOs commands specified by the Power Delivery
required
specification that to be used for communication between
Low power consumption – below 7.5mA
provider and consumer.
Offered in TSOT package
Figure 1: Functional Block Diagram
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Table of Contents
1.0
1.1
1.2
2.0
Pin-Out _____________________________________________________________________ 4
Package Diagram____________________________________________________________________4
Pin Description _____________________________________________________________________5
Functional Description ________________________________________________________ 6
2.1
2.2
2.3
2.4
Clock Generation____________________________________________________________________6
Isolation ___________________________________________________________________________6
Resistor ___________________________________________________________________________ 6
USB Power Delivery Engine____________________________________________________________6
2.4.1 Physical layer ______________________________________________________________________6
2.4.2 Protocol layer ___________________________________________________________________6
2.5
MCU______________________________________________________________________________6
2.6
Embedded Flash_____________________________________________________________________6
3.0
Electrical Specifications________________________________________________________ 7
3.1
Absolute Maximum Ratings _________________________________________________________7
3.2
Recommended Operating Conditions _________________________________________________7
Electrical Specifications ___________________________________________________________ 7
3.3
3.3.1 DC_________________________________________________________________________________8
3.3.2 AC___________________________________________________________________________8
4.0
Package Dimensions __________________________________________________________ 9
5.0 Revision History _____________________________________________________________ 10
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Chrontel
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Figures and Tables
List of Figures
Figure 1: Functional Block Diagram .........................................................................................................................1
Figure 2: TSOT23-5 Pin Out ......................................................................................................................................4
Figure 3: TSOT23-5 ackage........................................................................................................................................9
List of Tables
Table 1: Pin Description of TSOT23-5 ......................................................................................................................5
Table 2: Absolute Maximum Ratings ........................................................................................................................7
Table 3: Recommended Operating Conditions .........................................................................................................7
Table 4: DC Specifications..........................................................................................................................................8
Table 5: AC Specifications..........................................................................................................................................8
Table 6: Revisions......................................................................................................................................................10
Table 7: Ordering Information ................................................................................................................................11
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Chrontel
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1.0 Pin-Out
1.1
Package Diagram
Figure 2: SOT23-5 Pin Out
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1.2
Pin Description
Pin #
1
Type
Symbol
Power
VCONN2*
Description
Vconn
This pin connects to VCONN of the plug on the other side of the USB Type-C
cable.
2
3
NC
In/Out
CC
4
5
Power
Power
GND
VCONN1*
No Connection
CC
This pin connects to CC of the plugs on both sides of the USB Type-C cable.
Ground
Vconn
This pin connects to VCONN of the plug on one side of the USB Type-C cable.
Table 1: Pin Description of TSOT23-5
*Note: VCONN1 and VCONN2 are interchangeable.
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2.0 Functional Description
2.1
Clock Generation
The CH7231 equips with on-chip clock and no external crystal is needed.
2.2
Isolation
Each USB Type-C Electronically Marked Cable requires one CH7231. The isolation for VConn required
by the USB Type-C Specification is implemented on chip and there is no need to add external
components to achieve the isolation of VConn.
2.3
Resistor
The Ra resistor specified by the USB Type-C standard is incorporated in the CH7231 hardware circuits.
Additional off-chip resistors are not required to support the CH7231device. Also, the CH7231 meets the
7.5mA power-down maximum current and the Ra resistance increases when VConn is properly supplied,
which is allowed by the USB Type-c standard.
2.4
2.4.1
USB Power Delivery Engine
Physical layer
The physical layer of the USB Power Delivery engine includes the BMC codec, symbol (4b5b) codec,
CRC, packets format/decode and order sets processing.
2.4.2
Protocol layer
The protocol layer of the CH7231device handles the state machines, timers, control/data messages, etc.
2.5
MCU
Each CH7231 has an on-chip 8-bit MCU. It receives VDOs message commands from the CH7231’s USB
Power Delivery engine, processes it, and generates proper response.
2.6
Embedded Flash
A 2K-byte flash is embedded in the CH7231. It holds the MCU program and other key parameters
required for the chip to be functional. It needs to be initialized and programmed during the production test
before shipping to end customers.
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3.0 Electrical Specifications
3.1
Absolute Maximum Ratings
Symbol
Description
VVCONN
VCONNx voltage relative to GND
Min
Max
Units
-0.5
Typ
5.5
V
CC pin input voltage
GND-0.5
VVCONN
V
TSTOR
Storage temperature
-65
150
°C
TJ
Junction temperature
150
°C
TVPS
Vapor phase soldering (5 seconds)
260
°C
Vapor phase soldering (11 seconds)
245
°C
Vapor phase soldering (60 seconds)
225
°C
Table 2: Absolute Maximum Ratings
Note:
1) Stresses greater than those listed under absolute maximum ratings may cause permanent damage to
the device. These are stress ratings only. Functional operation of the device at these or any other
conditions above those indicated under the normal operating condition of this specification is not
recommended. Exposure to absolute maximum rating conditions for extended periods may affect
reliability.
2) The device is fabricated using high-performance CMOS technology. It should be handled as an ESD
sensitive device. Voltage on any signal pin that exceeds the power supply voltages by more than ±
0.5V can induce destructive latchup.
3.2
Recommended Operating Conditions
Symbol
Description
Min
Typ
Max
Units
VVCONN
VCONNx supply voltage
4.75
5.0
5.5
V
TAMB
Ambient operating temperature
70
°C
0
Table 3: Absolute Maximum Ratings
3.3
Electrical Characteristics
TAMB = room temperature, VVCONN = 5.0V, unless otherwise noted.
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3.3.1
DC Specifications
Symbol
Description
Test Condition
Min
Typ
4.75
Max
Unit
5.5
V
VVCONN
VCONNx supply voltage
IVCONN
VCONNx supply current
VCONN1 = VVCONN or
VCONN2 = VVCONN
3.75
mA
VOH,CC
CC output high voltage
Rp=10K, Rd=5.1K,
VPU=5V
1.125
V
VOL,CC
CC output low voltage
Rp=10K, Rd=5.1K,
VPU=5V
30
mV
Rra
Internal Ra resistor on
VCONNx pin
VCONNx not
powered.
1000
ohm
Rp=10K, Rd=5.1K,
VPU=5V
Table 4: DC Specifications
3.3.2
AC Specifications
Symbol
Description
Test Condition
fBitRate
CC output bit rate
Tr,CC
CC output rise time
Tf,CC
CC output fall time
Min
Typ
Max
Unit
300
Kbps
10% to 90%
450
nS
90% to 10%
450
nS
Table 5: AC Specifications
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Chrontel
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4.0 Package Dimensions
Table of Dimensions
No. of Leads
5
A
B
C
D
E
F
G
H
I
J
φ
Milli- MIN
meters MAX
0.90
1.00
0.01
0.15
0.30
0.50
2.82
3.05
2.65
2.95
1.60
1.70
0.90
1.00
1.80
2.00
0.08
0.20
0.30
0.60
0°
8°
SYMBOL
Figure 3: TSOT23-5 Package
Notes:
All dimensions refer to JEDEC standard MO-193
Do not include Mold flash or protrusions.
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5.0 Revision History
Rev. #
Date
Section
Description
0.9
08/13/15
All
Based on previous internal revisions
Remove DFN
Modify PD traffic
Add some parameter on Tvps in 3.1 section
Add Pattern Pending line in the “Features”
Change USB Type-C Spec. version to 1.1
1.0
05/09/16
“Features”
Change USB Power Delivery Spec. to version 1.1
Change USB Type-C Spec. version to 1.2
Change USB Power Delivery Spec. to version 1.2
“Figures and Tables”
3.1
Ordering Information
Add Figure 3. Add Table 3, 4, 5, 6, 7
Add some parameter on Vvconn in 3.1 section
Add Table 7: Ordering Information
Table 6: Revision History
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CH7231
Chrontel
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Disclaimer
This document provides technical information for the user. Chrontel reserves the right to make changes
at any time without notice to improve and supply the best possible product and is not responsible and
does not assume any liability for misapplication or use outside the limits specified in this document. We
provide no warranty for the use of our products and assume no liability for errors contained in this
document. The customer should make sure that they have the most recent data sheet version. Customers
should take appropriate action to ensure their use of the products does not infringe upon any patents.
Chrontel, Inc. respects valid patent rights of third parties and does not infringe upon or assist others to
infringe upon such rights.
Chrontel PRODUCTS ARE NOT AUTHORIZED FOR AND SHOULD NOT BE USED WITHIN LIFE
SUPPORT SYSTEMS OR NUCLEAR FACILITY APPLICATIONS WITHOUT THE SPECIFIC
WRITTEN CONSENT OF Chrontel. Life support systems are those intended to support or sustain life
and whose failure to perform when used as directed can reasonably expect to result in personal injury or
death.
ORDERING INFORMATION
Part Number
Package Type
Number of
Pins
CH7231-EF-TR
TSOT23-5
5
Voltage Supply
Temperature Grade
Commercial /
Automotive Grade 4
Table 7: Ordering Information
Chrontel
2210 O’Toole Avenue, Suite 100,
San Jose, CA 95131-1326
Tel: (408) 383-9328
Fax: (408) 383-9338
www.chrontel.com
E-mail: sales@chrontel.com
2016 Chrontel, Inc. All Rights Reserved.
Printed in the U.S.A.
201-0000-101
Rev. 1.0
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