USB3751 반도체 회로 부품 판매점
USB 2.0 Protection IC
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 Microchip |
USB375x
USB 2.0 Protection IC with Battery
Charger Detection
Features
• VBUS Over-Voltage Protection
- Protects internal circuits from VBUS up to 9V
- Over-Voltage/Under-Voltage Lockout opens
VBUS switch
- Interrupt to indicate Over-Voltage/Under-Volt-
age Lockout
- Integrated Low RDSON FET
• USB Port ESD Protection (DP/DM/VBUS)
- ±15kV (air discharge)
- ±15kV (contact discharge)
- IEC 61000-4-2 level 4 ESD protection without
external devices
• High Speed USB Mux for multiplexing the USB
lanes between different functions (USB3750 only)
- Switch the USB connector between two dif-
ferent functions
- High bandwidth USB switch passes HS USB
signals
• Provides USB Battery Charger Detection for:
- USB-IF Battery Charging compliant Dedi-
cated Charging Ports (DCP)
- USB-IF Battery Charging compliant Charging
• Dead Battery Provision Support (USB375x-1
only)
- Allows 100 mA trickle charging from VBUS
when attached to a Standard Downstream
Port (SDP) while not enumerated
- Built-in 100mA current limiting option
• Microchip RapidCharge Anywhere™ Provides:
- 3-times the charging current through a USB
port over traditional solutions
- USB-IF Battery Charging 1.2 compliance to
any portable device
- Charging current up to 1.5Amps via compati-
ble USB host or dedicated charger
- Dedicated Charging Port (DCP), Charging
(CDP) & Standard (SDP) Downstream Port
support
• flexPWR® Technology
- Extremely low current design ideal for battery
powered applications
- Maximizes power delivered to the system
• Industrial Operating Temperature -40°C to +85°C
• 16-Pin QFN RoHS compliant package; (3.0 mm x
3.0 mm x 0.9 mm height
Downstream Port (CDP)
- Standard Downstream Port (SDP); i.e. USB
host or downstream hub port
- Dedicated SE1 type chargers
USB375x Block Diagram
DP
DM
VBUS
GND
HS Switch is USB3750 feature only
HS USB
Switch
DP_2
DM_2
DP_1
DM_1
Over-Voltage/Under-Voltage
Protection and Current
Limiting
VOUT
Charger
Detection
I2C
Interface
SCL
SDA
INT_B
VBUS
USB 2.0 PHY,
DP Processor, or
Accessory
DM
DP
USB 2.0 PHY,
DM Processor, or
Accessory
VBUS
Battery
VBUS Charger/
PMU
Processor
2011 - 2014 Microchip Technology Inc.
DS00001824A-page 1
USB375x
TO OUR VALUED CUSTOMERS
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip
products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and
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Most Current Data Sheet
To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at:
http://www.microchip.com
You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.
The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000).
Errata
An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for cur-
rent devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the
revision of silicon and revision of document to which it applies.
To determine if an errata sheet exists for a particular device, please check with one of the following:
• Microchip’s Worldwide Web site; http://www.microchip.com
• Your local Microchip sales office (see last page)
When contacting a sales office, please specify which device, revision of silicon and data sheet (include -literature number) you are
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DS00001824A-page 2
2011 - 2014 Microchip Technology Inc.
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USB3751 data
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