MAXIM MAX3341E User Manual

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General Description

The MAX3341E USB level translator converts logic-level
signals to USB signals, and USB signals to logic-level
signals. An internal 1.5kΩ USB termination resistor sup­ports full-speed (12Mbps) USB operation. The
MAX3341E provides built-in ±15kV ESD-protection cir­cuitry on the USB I/O pins, D+ and D-, and VCC.

The MAX3341E operates with logic supply voltages as
low as 1.8V, ensuring compatibility with low-voltage
ASICs. The suspend mode lowers supply current to
less than 50µA. A unique enumerate feature allows
changes in USB communication protocol while power is
applied. The MAX3341E is fully compliant with USB
specification 1.1, and full-speed operation under USB
specification 2.0.

The MAX3341E has a USB detect that monitors the
USB bus for insertion and signals this event.

The MAX3341E is available in the miniature 4 ✕4
UCSP™, as well as the small 16-pin TSSOP, and is
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-
♦ Complies with USB Standard 1.1 (Full Speed 2.0)
♦ USB Skew Independent of Input Skew
♦ Separate VP and VM Inputs/Outputs
♦ V

L

Down to 1.8V Allows Connection with Low-

Voltage ASICs

♦ Reenumerate with Power Applied
♦ USB Detect Function
♦ Allows Single-Ended or Differential Logic I/O
♦ Internal Linear Regulator Allows Direct Powering

from the USB

♦ Internal Termination Resistor for Full-Speed

Operation

♦ Three-State Outputs
♦ No Power-Supply Sequencing Required
♦ Driver Active in Suspend Mode
♦ Available in Miniature Chip-Scale Package

MAX3341E

±15kV ESD-Protected USB Level Translator in

UCSP with USB Detect

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-2321; Rev 0; 4/02

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.

Pin Configurations appear at end of data sheet.

UCSP is a trademark of Maxim Integrated Products, Inc.

*Future product—contact factory for availability.

**UCSP reliability is integrally linked to the user’s assembly

methods, circuit board material, and environment. See the
UCSP Reliability Notice in the UCSP Reliability section of this
data sheet for more information.

Typical Operating Circuit

PART TEMP RANGE PIN-PACKAGE

MAX3341EEUD -40°C to +85°C 16 TSSOP

MAX3341EEBE* -40°C to +85°C4 ✕ 4 UCSP**

1µF

V

SYSTEM

SUPPLY

VOLTAGE

0.1µF

SYSTEM INTERFACE

V

L

RCV
VPI

VMI
SUSPEND
OE

USB_DET
MODE
ENUMERATE
VPO
VMO

MAX3341E

GND

V

VTRM

CC

D+

D-

23.7Ω

23.7Ω

1µF

BUS

D+

D-

GND

USB
INTERFACE
CONNECTOR

MAX3341E

±15kV ESD-Protected USB Level Translator in
UCSP with USB Detect

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC= 4V to 5.5V bypassed with 1µF to GND, GND = 0, VL= 1.8V to 3.6V, D+ to GND = 15kΩ, D- to GND = 15kΩ, ENUM = VL,
T

A

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= 5V, VL= 2.5V, TA= +25°C.)

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.

)

)

Note 1: Guaranteed for VCC< +3.7V only.
Note 2: Absolute Maximum Rating for input voltage (D+, D-) with V

CC

> +3.7V is -0.3V to (VCC+0.3V).

Note 3: 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) (Note 1) ..........-0.3V to +6V

Input Voltage (D+, D-) (Notes 1, 2) ..........................-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

Ground (Note 3) .........................................................Continuous

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

Continuous Power Dissipation (T

A

= +70°C)

16-Pin TSSOP (derate 7.1mW/°C above +70°C) .........571mW

4

✕

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

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

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

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

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

USB Supply Voltage V

USB Supply Current I

VCC Supply Current ICC(< 3V) VCC < 3V 80 µA

D + /D - Leakag e C ur r ent I

VL Suspend Supply Current I

LOGIC-SIDE I/O

VL Input Range V

CC

CC

Data rate = 12Mbps, CL = 50pF (Figure 6b) 10 20 mA
SUSP = high, ENUM = low, OE = high 50

CC(SUSP

SUSP = high, OE = low 85USB SUSP Supply Current I
SUSP = high, ENUM = high, OE = high 85

(3V) VCC = 3V; D+, D- < 3.6V 10 µA

D+/D-

L(SUSP

L

SUSP = high, 0 < VCC < 5.5V 20 µA

4 5.5 V

1.8 3.6 V

µA

Input High Voltage V

Input Low Voltage V

Output Voltage High V

Output Voltage Low V

IH

IL

OH

OL

Input Leakag e C ur r ent S U SP , MOD E , E N UM , OE, VM O, V P O = 0 or V

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

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

VPI, VMI, RCV, USB_DET; I

VPI, VMI, RCV, USB_DET; I

= 1mA VL - 0.2 V

SOURCE

= -1mA 0.4 V

SINK

L

USB-SIDE I/O

Output Voltage Low V

Output Voltage High V

Input Impedance Z

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

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

Receiver Single-Ended
Hysteresis

Differential Input Sensitivity V

V

OL

OH

IN

IH

IL

HYS

DIFF

D+ or D- 0.3 V

D+ or D- 2.8 3.6 V

Three-state driver 1 MΩ

2.0 V

200 mV

L

±1 ±10 µA

0.8 V

200 mV

V

MAX3341E

±15kV ESD-Protected USB Level Translator in

UCSP with USB Detect

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(VCC= 4V to 5.5V bypassed with 1µF to GND, GND = 0, VL= 1.8V to 3.6V, D+ to GND = 15kΩ, D- to GND = 15kΩ, ENUM = VL,
T

A

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at VCC= 5V, VL= 2.5V, TA= +25°C.)

TIMING CHARACTERISTICS

(VCC= 4V to 5.5V, GND = 0, VL= 1.8V to 3.6V, D+ to GND = 15kΩ, D- to GND = 15kΩ, 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)

)

)

)

)

)

)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Input Common-Mode Voltage
Range

Driver Output Impedance Z

Internal Resistor R

Termination Voltage VTRM 3.0 3.3 3.6 V

USB_DET Threshold

USB_DET Hysteresis V

LINEAR REGULATOR

Power-Supply Rejection Ratio PSRR f = 10kHz, C

External Capacitor C

ESD PROTECTION (VCC, D+, D-)

Human Body Model ±15 kV

IE C 1000- 4- 2 Ai r - Gap D i schar g e ±15 kV

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

V

CM

OUT

PU

V

USBLH

V

USBHL

USBHYS

OUT

Including 23.7Ω (±1%) external resistors 28.5 43.5 Ω

= 1µF, D+/D- load 30 dB

OUT

Compensation of linear regulator 1 µF

0.8 2.5 V

1.425 1.500 1.575 kΩ

4.0

3.7

25 mV

V

OE to Transmit Delay Enable
Time

OE to Driver Three-State Delay
Driver Disable Time

USB Detect Signal Delay t

TRANSMITTER

VPO/VMO to D+/D- Propagation
Delay

VPO to D+/D- Propagation
Delay

Rise Time D+/D- t

Fall Time D+/D- t

Rise- and Fall-Time Matching tR/t

Output Signal Crossover V

DIFFERENTIAL RECEIVER (Figure 6a)

D+/D- to RCV Propagation
Delay

Rise Time RCV t

Fall Time RCV t

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

t

PZD

t

PDZ

DUSB

t

PLH1(drv

t

PHL1(drv

t

PLH0(drv

t

PHL0(drv

R

F

CRS

t

PLH(RCV

t

PHL(RCV

R

F

Figure 6c 15 80 ns

Figure 6c 25 ns

Figure 6b 7.5 µs

MODE = high , Figure 6c 30

MODE = high, Figure 6c 30

MODE = low, Figure 6c 35

MODE = low, Figure 6c 35

(Note 4) 90 110 %

F

420ns

420ns

1.3 2 V

30

30

15 ns

15 ns

ns

ns

ns

MAX3341E

±15kV ESD-Protected USB Level Translator in
UCSP with USB Detect

4 _______________________________________________________________________________________

Typical Operating Characteristics

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

DIFFERENTIAL RECEIVER PROPAGATION

DELAY vs. V

L

MAX3341 toc01

VL (V)

PROPAGATION DELAY (ns)

2.82.3

11

14

17

20

8

1.8 3.3

TA = +85°C

T

A

= +25°C

T

A

= -40°C

DIFFERENTIAL RECEIVER PROPAGATION

DELAY vs. V

CC

MAX3341 toc02

VCC (V)

PROPAGATION DELAY (ns)

5.255.004.754.504.25

10

12

14

16

18

20

8

4.00 5.50

TA = -40°C

TA = +25°C

TA = +85°C

SINGLE-ENDED RECEIVER PROPAGATION

DELAY vs. V

L

MAX3341 toc03

VL (V)

PROPAGATION DELAY (ns)

2.82.3

5

6

7

8

9

10

4

1.8 3.3

TA = -40°C

TA = +25°C

TA = +85°C

SINGLE-ENDED RECEIVER PROPAGATION

DELAY vs. V

CC

MAX3341 toc04

VCC (V)

PROPAGATION DELAY (ns)

5.255.004.754.504.25

5

6

7

8

9

10

4

4.00 5.50

TA = -40°C

TA = +25°C

TA = +85°C

TIME TO ENTER SUSPEND MODE

vs. V

CC

MAX3341 toc05

VCC (V)

TIME (ns)

5.255.004.754.504.25

20

25

30

35

40

45

50

15

4.00 5.50

TA = -40°C

TA = +25°C

TA = +85°C

TRANSMITTER SKEW vs. V

CC

MAX3341 toc06

VCC (V)

TRANSMITTER SKEW (ns)

5.255.004.754.504.25

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

1.6

4.00 5.50

TA = -40°C

TA = +25°C

TA = +85°C

TIMING CHARACTERISTICS (continued)

(VCC= 4V to 5.5V, GND = 0, VL= 1.8V to 3.6V, D+ to GND = 15kΩ, D- to GND = 15kΩ, 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 4: Production tested at +25°C and +85°C only. Limit at -40°C guaranteed by correlation.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

SINGLE-ENDED RECEIVERS

D+/D- to VPI or VMI Propagation
Delay

Rise Time VPI and VMI t

Fall Time VPI and VMI t

Time to Detect Single-Ended
Zero

t

PLH(SE

t

PHL(SE

R(SE)

F(SE)

t

SE0

Figure 6a 15

Figure 6a 15

Measured from 10% to 90%,Figure 6a 15 ns

Measured from 90% to 10%, Figure 6a 15 ns

14 140 ns

ns

MAX3341E

±15kV ESD-Protected USB Level Translator in

UCSP with USB Detect

_______________________________________________________________________________________ 5

0

Typical Operating Characteristics (continued)

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

LOGIC CURRENT CONSUMPTION IN

9

8

7

(µA)

6

VL

I

5

4

3

1.8 3.3

D+

1V/div

D-

SUSPEND MODE

2.82.3

VL (V)

RISE-AND-FALL TIME MATCHING

f = 6MHz

MAX3341 toc1

MAX3341 toc07

25.5

25.0

24.5

24.0

(µA)

VCC

I

23.5

23.0

22.5

22.0

4.00 5.50

SUSP

0

2V/div

RCV

0

CURRENT CONSUMPTION IN

SUSPEND MODE

5.255.004.754.504.25

VCC (V)

SUSPEND RESPONSE

MAX3341 toc11

MAX3341 toc08

3.5

VTRM vs. V

3.4

3.3

VTRM (V)

3.2

3.1

3.0

4.00 5.50
VCC (V)

CC

I

VTRM

TRANSMISSION IN SUSPEND MODE

(SUSP = 1)

VPO

VMO

2V/div

D+

D-

= 15mA

MAX3341 toc09

5.255.004.754.504.25

MAX3341 toc12

20ns/div

100ns/div

USB_DET RESPONSE

V

CC

2V/div

0

USB_DET

0

10µs/div

MAX3341 toc13

2µs/div