Rainbow Electronics MAX3345E User Manual

General Description

The MAX3344E/MAX3345E USB transceivers convert
logic-level signals to USB signals, and USB signals to
logic-level signals. An internal 1.5kΩ USB pullup resistor
supports full-speed (12Mbps) USB operation. The
MAX3344E/MAX3345E provide built-in ±15kV ESD-pro­tection circuitry on the USB I/O pins, D+ and D-, and V

CC

.

The MAX3344E/MAX3345E operate with logic supply
voltages as low as 1.65V, ensuring compatibility with
low-voltage ASICs. The suspend mode lowers supply
current to less than 40µA. An enumerate function allows
devices to logically disconnect while plugged in. The
MAX3344E/MAX3345E are fully compliant with USB
specification 1.1, and full-speed operation under USB
specification 2.0.

The MAX3344E/MAX3345E have a USB detect that mon­itors the USB bus for insertion and signals this event. The
MAX3344E USB_DET threshold is between 3.6V (min)
and 4V (max), while the MAX3345E USB_DET threshold
is between 1V (min) and 2.8V (max).

The MAX3344E/MAX3345E are available in the miniature
4

✕

4 UCSP™, as well as the small 16-pin TSSOP, and

are specified over the extended temperature range,

-40°C to +85°C.

Applications

Cell Phones
PC Peripherals
Information Appliances
Data Cradles
PDAs
MP3 Players
Digital Cameras

Features

♦ ±15kV ESD Protection On D+ and D-
♦ Comply with USB Specification 1.1 (Full Speed 2.0)
♦ Separate VP and VM Inputs/Outputs
♦ VLDown to 1.65V Allows Connection with Low-

Voltage ASICs

♦ Enumerate Input—Allows USB Connection

through Software

♦ USB Detect Function

3.6V (min) to 4V (max)—MAX3344E
1V (min) to 2.8V (max)—MAX3345E

♦ Allow Single-Ended or Differential Logic I/O
♦ Internal Linear Regulator Allows Direct Powering

from the USB

♦ Internal Pullup Resistor for Full-Speed Operation
♦ Three-State Outputs
♦ No Power-Supply Sequencing Required
♦ Driver Active in Suspend Mode
♦ Available in Miniature Chip-Scale Package

MAX3344E/MAX3345E

±15kV ESD-Protected USB Transceivers

in UCSP with USB Detect

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-3171; Rev 0; 2/04

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.

PART

TEMP RANGE

PIN-PACKAGE

MAX3344EEUE

16 TSSOP

MAX3344EEBE-T

4 x 4 UCSP

MAX3345EEUE

16 TSSOP

MAX3345EEBE-T

4 x 4 UCSP

Pin Configurations appear at end of data sheet.

UCSP is a trademark of Maxim Integrated Products, Inc.

USB
INTERFACE
CONNECTOR

V

L

RCV
VPI

VMI
SUSP

D+

D-

V

BUS

D+

D-

GND

SYSTEM

SUPPLY

VOLTAGE

USB_DET

MODE

VTRM

ENUM
VPO
VMO

SYSTEM INTERFACE

V

CC

OE

23.7Ω

23.7Ω

MAX3344E/

MAX3345E

GND

0.1µF

1µF

1µF

Typical Operating Circuit

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

MAX3344E/MAX3345E

±15kV ESD-Protected USB Transceivers
in UCSP with USB Detect

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC= 4V to 5.5V bypassed with 1µF to GND, GND = 0, VL= 1.65V to 3.6V, ENUM = VL, TA= T

MIN

to T

MAX

, unless otherwise

noted. Typical values are at V

CC

= 5V, VL= 2.5V, TA= +25°C.) (Note 2)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

PARAMETER SYMBOL CONDITIONS

SUPPLY INPUTS (VCC, VTRM, VL)

Regulated Supply Voltage
Output

V

VTRM

Internal regulator 3.0 3.3 3.6 V

VCC Input Range V

CC

4.0 5.5 V

VL Input Range V

L

V

Operating VCC Supply Current I

VCC

Full-speed transmitting/receiving at
12Mbps, C

L

= 50pF on D+ and D-

10 mA

Operating VL Supply Current I

VL

Full-speed transmitting/receiving at
12Mbps

8mA

Full-speed idle: VD+ > 2.7V, VD- < 0.3V

Full-Speed Idle and SE0 Supply
Current

)

SE0: VD+ < 0.3V, VD- < 0.3V

µA

Static VL Supply Current

)

Full-speed idle, SE0, or suspend mode

µA

Suspend Supply Current

)

SUSP = OE = high 40 µA

Disable-Mode Supply Current I

VCC(DIS)

VL = GND or open 20 µA

D+/D- Disable-Mode
Load Current

I

D_(DIS)

VL = GND or open, VD_ = 0 or +5.5V 5 µA

Sharing-Mode VL Supply
Current

)

VCC = GND or open, OE = low, SUSP =
high

20 µA

D+/D- Sharing-Mode
Load Current

)

VCC = GND or open, VD_ = 0 or +5.5V 20 µA

LOGIC-SIDE I/O

Input High Voltage V

IH

SUSP, MODE, ENUM, OE, VMO, VPO 2/3 x V

L

V

Input Low Voltage V

IL

SUSP, MODE, ENUM, OE, VMO, VPO 0.4 V

Output-Voltage High V

OH

VPI, VMI, RCV, USB_DET; I

SOURCE

=

2mA

V

L

- 0.4 V

Output-Voltage Low V

OL

VPI, VMI, RCV, USB_DET; I

SINK

= -2mA 0.4 V

Note 1: External 23.7Ω resistors connected to D+ and D-.

(All voltages refer to GND, unless otherwise noted.)
Supply Voltage (V

CC

) ...............................................-0.3V to +6V

Output of Internal Regulator (VTRM)..........-0.3V to (V

CC

+ 0.3V)

Input Voltage (D+, D-)..............................................-0.3V to +6V

System Supply Voltage (V

L

) .....................................-0.3V to +6V

RCV, SUSP, VMO, MODE, VPO,

OE, VMI,

VPI, USB_DET, ENUM...............................-0.3V to (V

L

+ 0.3V)
Short-Circuit Current (D+, D-) to V

CC

or

GND (Note 1) .........................................................Continuous

Maximum Continuous Current (all other pins)..................±15mA

Continuous Power Dissipation (T

A

= +70°C)
16-Pin TSSOP (derate 9.4mW/°C above +70°C)...754mW (U16-2)
4

✕

4 UCSP (derate 8.2mW/°C above +70°C) ...659mW (B16-1)

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Bump Temperature (soldering) Reflow............................+235°C

MIN TYP MAX UNITS

1.65 3.60

I

VCC(IDLE

I

VL(STATIC

I

VCC(SUSP

340 450
390 500

I

VL(SHARING

I

D_(SHARING

12.5

MAX3344E/MAX3345E

±15kV ESD-Protected USB Transceivers

in UCSP with USB Detect

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(VCC= 4V to 5.5V bypassed with 1µF to GND, GND = 0, VL= 1.65V to 3.6V, ENUM = VL, TA= T

MIN

to T

MAX

, unless otherwise

noted. Typical values are at V

CC

= 5V, VL= 2.5V, TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS

MIN

TYP

MAX

UNITS

Input Leakag e C ur r ent

S U SP , MOD E , E N UM , OE, VM O, V P O = 0 or
V

L

±1 µA

USB-SIDE I/O

Output-Voltage Low V

OL

RL = 1.5kΩ from D+ or D- to 3.6V 0.3 V

Output-Voltage High V

OH

RL = 15kΩ from D+ and D- to GND 2.8 3.6 V

Input Impedance Z

IN

Three-state driver, ENUM = 0, VD_ = 0 or
+3.6V

1MΩ

S i ng l e- E nd ed Inp ut- V ol tag e H i g h

V

IH

2.0 V

S i ng l e- E nd ed Inp ut- V ol tag e Low V

IL

0.8 V

Receiver Single-Ended
Hysteresis

V

HYS

mV

Differential Input Sensitivity V

DIFF

mV

Input Common-Mode Voltage
Range

V

CM

0.8 2.5 V

Driver Output Impedance R

OUT

4.6

Ω

Internal Pullup Resistor R

PU

kΩ

V

USBLH1

MAX3344E 4.0

V

USBHL1

MAX3344E 3.6

V

USBLH2

MAX3345E 2.8

USB_DET Threshold

V

USBHL2

MAX3345E 1

V

USB_DET Hysteresis V

USBHYS

MAX3344E 25 mV

LINEAR REGULATOR

External Capacitor C

OUT

Compensation of linear regulator 1 µF

ESD PROTECTION (VCC, D+, D-)

Human Body Model

kV

IE C 1000- 4- 2 Ai r - Gap D i schar g e

kV

IE C 1000- 4- 2 C ontact D i schar g e ±8 kV

TIMING CHARACTERISTICS

(VCC= 4V to 5.5V, GND = 0, VL= 1.65V to 3.6V, ENUM = VL, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

V

CC

= 5V, VL= 2.5V, TA= +25°C.) (Figures 2–6) (Note 2)

PARAMETER

CONDITIONS

UNITS

TRANSMITTER

OE to Transmit Delay Enable Time t

PZD

Figures 2 and 6c 20 ns

OE to Driver Three-State Delay
Driver Disable Time

t

PDZ

Figures 2 and 6c 20 ns

)

MODE = high, Figures 4 and 6b 10 18

VPO/VMO to D+/D- Propagation
Delay

)

MODE = high, Figures 4 and 6b 10 18

ns

)

MODE = low, Figures 3 and 6c 11 20

VPO/VMO D+/D- Propagation
Delay

)

MODE = low, Figures 3 and 6c 11 20

ns

SYMBOL

t

PLH1(drv

t

PHL1(drv

t

PLH0(drv

t

PHL0(drv

200

1.410 1.500 1.540

MIN TYP MAX

200

±15
±10

16.0

Typical Operating Characteristics

(VCC= 5V, VL= 3.3V, TA = +25°C, unless otherwise noted.)

MAX3344E/MAX3345E

±15kV ESD-Protected USB Transceivers
in UCSP with USB Detect

4 _______________________________________________________________________________________

TIMING CHARACTERISTICS (continued)

(VCC= 4V to 5.5V, GND = 0, VL= 1.65V to 3.6V, ENUM = VL, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

V

CC

= 5V, VL= 2.5V, TA= +25°C.) (Figures 2–6) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Rise Time D+/D- t

R1

CL = 50pF, 10% to 90% of
|V

OH

- VOL|

420ns

Fall Time D+/D- t

F1

CL = 50pF, 90% to 10% of
|V

OH

- VOL|

420ns

Rise- and Fall-Time Matching tR1/t

F1

(Note 3) 90 111 %

Output Signal Crossover V

CRS

(Note 3) 1.3 2.0 V

DIFFERENTIAL RECEIVER (Figures 5 and 6a)

)

18 ns

D+/D- to RCV Propagation Delay

)

18 ns

SINGLE-ENDED RECEIVERS (Figures 5 and 6a)

t

PLH(SE)

18 ns

D+/D- to VPI or VMI Propagation
Delay

t

PHL(SE)

18 ns

Note 2: Parameters are 100% production tested at 25°C, limits over temperature are guaranteed by design.
Note 3: Guaranteed by design, not production tested.

10

12

16

14

18

20

1.5 2.11.8 2.4 2.7 3.0 3.3 3.6

DIFFERENTIAL RECEIVER PROPAGATION

DELAY vs. V

L

MAX3344E/45E toc01

VL (V)

PROPAGATION DELAY (ns)

TA = -40°C

TA = +25°C

TA = +85°C

10

12

16

14

18

20

4.00 4.504.25 4.75 5.00 5.25 5.50

DIFFERENTIAL RECEIVER PROPAGATION

DELAY vs. V

CC

MAX3344E/45E toc02

VCC (V)

PROPAGATION DELAY (ns)

TA = -40°C

TA = +25°C

TA = +85°C

7

9

8

11

10

14

13

12

15

1.5 2.11.8 2.4 2.7 3.0 3.3 3.6

SINGLE-ENDED RECEIVER PROPAGATION

DELAY vs. V

L

MAX3344E/45E toc03

VL (V)

PROPAGATION DELAY (ns)

TA = -40°C

TA = +25°C

TA = +85°C

t

PLH(RCV

t

PHL(RCV

MAX3344E/MAX3345E

±15kV ESD-Protected USB Transceivers

in UCSP with USB Detect

_______________________________________________________________________________________ 5

7

8

9

10

11

12

13

14

15

4.00 4.504.25 4.75 5.00 5.25 5.50

SINGLE-ENDED RECEIVER PROPAGATION

DELAY vs. V

CC

MAX3344E/45E toc04

VCC (V)

PROPAGATION DELAY (ns)

TA = -40°C

TA = +25°C

TA = +85°C

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

4.00 4.504.25 4.75 5.00 5.25 5.50

TRANSMITTER SKEW vs. V

CC

MAX3344E/45E toc05

VCC (V)

TRANSMITTER SKEW (ns)

TA = -40°C

TA = +25°C

TA = +85°C

3

5

4

7

6

9

8

10

1.5 2.1 2.41.8 2.7 3.0 3.3 3.6

LOGIC CURRENT CONSUMPTION IN

SUSPEND MODE

MAX3344E/45E toc06

VL (V)

I

VL

(µA)

22

25
24
23

26

27

28

29

30

31

32

4.00 4.504.25 4.75 5.00 5.25 5.50

V

CC

CURRENT CONSUMPTION IN

SUSPEND MODE

MAX3344E/45E toc07

VCC (V)

I

VCC

(µA)

3.0

3.1

3.3

3.2

3.4

3.5

4.00 4.504.25 4.75 5.00 5.25 5.50

VTRM vs. V

CC

MAX3344E/45E toc08

VCC (V)

VTRM (V)

I

VTRM

= 15mA

D-

D+

1V/div

RISE- AND FALL-TIME MATCHING

MAX3344E/45E toc09

20ns/div

f = 6MHz

2V/div

SUSP

SUSPEND RESPONSE

MAX3344E/45E toc10

100ns/div

0

0

RCV

2V/div

VPO

TRANSMISSION IN SUSPEND MODE

(SUSP = 1)

MAX3344E/45E toc11

2µs/div

VMO

D+

D-

USB_DET

V

CC

USB_DET RESPONSE

MAX3344E/45E toc12

10µs/div

0

0

2V/div

Typical Operating Characteristics (continued)

(VCC= 5V, VL= 3.3V, TA = +25°C, unless otherwise noted.)