MAX3353E Datasheet, PDF (1/21 Pages) Maxim Integrated Products – USB On-the-Go Charge Pump with Switchable Pullup/Pulldown Resistors

19-2845; Rev 1; 10/03
USB On-the-Go Charge Pump with Switchable
Pullup/Pulldown Resistors
General Description
The MAX3353E I²C™-compatible USB On-The-Go
(OTG) regulated charge pump with switchable
pullup/pulldown resistors allows peripherals and mobile
devices such as PDAs, cellular phones, and digital
cameras to be interconnected without a host PC.
The MAX3353E enables a system with an integrated
USB dual-role transceiver to function as a USB OTG
dual-role device. The charge pump in the MAX3353E
supplies V_BUS power and signaling that is required by
the transceiver as defined in On-The-Go Supplement:
USB 2.0, Revision 1.0. The MAX3353E provides the
switchable pullup and pulldown resistors on D+ and D-
required for a dual-role device.
The MAX3353E integrates a regulated charge pump,
switchable pullup/pulldown resistors, and an I²C-com-
patible 2-wire serial interface. The device provides a
detector to monitor ID status and operates with logic
supply voltages (V_L) between +1.65V and V_CC and
charge-pump supply voltages (V_CC) from +2.6V to
+5.5V. The charge pump supplies an OTG-compatible
output on V_BUS while sourcing 8mA output current.
The MAX3353E enables USB OTG communication
between digital logic parts that cannot supply or tolerate
the +5V V_BUS levels that USB OTG requires. By control-
ling and measuring V_BUS using internal comparators,
this device supports USB OTG session request protocol
(SRP) and host negotiation protocol (HNP).
The MAX3353E has built-in ±15kV ESD protection circuitry
to guard V_BUS, ID_IN, D+, and D-. The MAX3353E is
available in a 5 x 4 chip-scale package (UCSP™) and
16-pin TSSOP package.
Applications
Mobile Phones
PDAs
Digital Cameras
MP3 Players
Photo Printers
Pin Configurations appear at end of data sheet.
Typical Applications Circuit appears at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
Purchase of I²C components from Maxim Integrated Products,
Inc., or one of its sublicensed Associated Companies, conveys
a license under the Philips I²C Patent Rights to use these com-
ponents in an I²C system, provided that the system conforms
to the I²C Standard Specification as defined by Philips.
Features
o Ideal for Enabling USB Dual-Role Components for
USB OTG Protocol
o Charge Pump for V_BUS Signaling and Operation
Down to +2.6V
o Level Translators Allow Low-Voltage System
Interface
o Internal V_BUS Comparators and ID Detector
o Internal Switchable Pullup and Pulldown
Resistors for Host/Peripheral Functionality
o I²C-Compatible Bus Interface with Command and
Status Registers
o Interrupt Features
o ±15kV ESD Protection on ID_IN, V_BUS, D+, and D-
o Supports SRP and HNP
o Available in 5 x 4 UCSP and 16-Pin TSSOP
Ordering Information
PART
MAX3353EEUE
MAX3353EEBP-T
TEMP RANGE
PIN-
PACKAGE
-40°C to +85°C 16 TSSOP
-40°C to +85°C 5 x 4 UCSP
PKG
CODE
—
B20-4
Functional Diagram
VCC
ID_OUT
VL
C+ C-
VBUS
COMPARATORS
CHARGE
PUMP
CURRENT
GENERATOR
200kΩ
ID DETECTOR
±15kV
ESD
PROTECTION
VBUS
ID_IN
D+
SCL
SDA
INT
ADD
110kΩ
D-
SE0
DRIVER
PULLUP/DOWN
RESISTORS
VTRM
MAX3353E
________________________________________________________________ Maxim Integrated Products 1
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1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.