19-2845; Rev 1; 10/03
USB On-the-Go Charge Pump with Switchable
Pullup/Pulldown Resistors
General Description
Features
The MAX3353E I2C-compatible USB On-the-Go (OTG)
regulated charge pump with switchable pullup/pull-
down resistors allows peripherals and mobile devices
such as PDAs, cellular phones, and digital cameras to
be interconnected without a host PC.
♦ Ideal for Enabling USB Dual-Role Components for
USB OTG Protocol
♦ Charge Pump for V
Signaling and Operation
BUS
Down to +2.6V
♦ Level Translators Allow Low-Voltage System
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
Interface
♦ Internal V
Comparators and ID Detector
BUS
supplies V
power and signaling that is required by
BUS
♦ Internal Switchable Pullup and Pulldown
Resistors for Host/Peripheral Functionality
♦ I2C-Compatible Bus Interface with Command and
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.
Status Registers
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
♦ Interrupt Features
♦ ±±15V ESD Protection on IDꢀIꢁN V
♦ Supports SRP and HꢁP
N D+N and D-
BUS
supply voltages (V ) between +1.65V and V
and
CC
L
♦ Available in 1 x 4 UCSP and ±6-Pin TSSOP
charge-pump supply voltages (V ) from +2.6V to
CC
+5.5V. The charge pump supplies an OTG-compatible
output on V
while sourcing 8mA output current.
BUS
The MAX3353E enables USB OTG communication
between digital logic parts that cannot supply or tolerate
Ordering Information
the +5V V
levels that USB OTG requires. By control-
BUS
PIꢁ-
PACKAGE
PKG
CODE
PART
TEMP RAꢁGE
ling and measuring V
using internal comparators,
BUS
this device supports USB OTG session request protocol
(SRP) and host negotiation protocol (HNP).
16 TSSOP
MAX3353EEUE
-40°C to +85°C
—
5 x 4 UCSP
MAX3353EEBP-T -40°C to +85°C
B20-4
The MAX3353E has built-in 15ꢀV ESD protection circuitry
to guard V
, ID_IN, D+, and D-. The MAX3353E is
BUS
available in a 5 x 4 chip-scale pacꢀage (UCSP™) and
16-pin TSSOP pacꢀage.
Applications
Functional Diagram
Mobile Phones
PDAs
C+
C-
V
CC
Digital Cameras
MP3 Players
Photo Printers
CHARGE
PUMP
CURRENT
GENERATOR
200kΩ
V
BUS
COMPARATORS
V
BUS
ID_OUT
ID_IN
D+
ID DETECTOR
15kV
ESD
Pin Configurations appear at end of data sheet.
V
L
PROTECTION
Typical Applications Circuit appears at end of data sheet.
D-
SCL
SDA
INT
UCSP is a trademark of Maxim Integrated Products, Inc.
SE0
DRIVER
ADD
PULLUP/DOWN
RESISTORS
V
TRM
110kΩ
MAX3353E
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±
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.