General Description
The MAX3453EMAX3456E 15kV ESD-protected USB-
compliant transceivers interface low-voltage ASICs with
USB devices. The devices fully comply with USB 1.1
and USB 2.0 when operating at full (12Mbps) and low
(1.5Mbps) speeds. The MAX3453EMAX3456E operate
with V
L
as low as +1.65V, ensuring compatibility with
low-voltage ASICs.
The MAX3453EMAX3456E feature a logic-selectable
suspend mode that reduces current consumption to
less than 40A. Integrated 15kV ESD protection pro-
tects the USB D+ and D- bidirectional bus connections.
The MAX3453E supports only full-speed (12Mbps)
operation. The MAX3453E/MAX3454E feature an inter-
nal 1.5k
USB pullup resistor and an enumeration func-
tion that allows devices to logically disconnect while
plugged in. The MAX3453E/MAX3455E provide a push-
pull bus-detect (BD) output that asserts high when
V
BUS
> +4.0V. The MAX3456E is pin compatible with
Micrel's MIC2550A.
The MAX3453EMAX3456E operate over the extended
temperature range (-40C to +85C) and are available
in 14-pin TSSOP and 16-pin (3mm x 3mm) thin QFN
packages.
Applications
PDAs
PC Peripherals
Cellular Telephones
Data Cradles
MP3 Players
Features
o 15kV ESD Protection on D+ and D-
o USB 1.1 and USB 2.0 (Low-Speed and Full-Speed)-
Compliant Transceivers
o Combined VP and VM Inputs/Outputs
o +1.65V to +3.6V V
L
Logic Supply Input for
Interfacing with Low-Voltage ASICs
o Enumerate Input Function (MAX3453E/MAX3454E)
o Powered from Li+ Battery as Low as +3.1V
(MAX3454E/MAX3456E)
o V
BUS
Detection (MAX3453E/MAX3455E)
o Pin Compatible with Micrel MIC2550A (MAX3456E)
o Internal Pullup Resistor (MAX3453E/MAX3454E)
o No Power-Supply Sequencing Required
MAX3453EMAX3456E
15kV ESD-Protected USB Transceivers
________________________________________________________________ Maxim Integrated Products
1
19-2924; Rev 1; 10/03
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.
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX3453EEUD
-40
o
C to +85
o
C
14 TSSOP
MAX3453EETE
-40
o
C to +85
o
C
16 Thin QFN
MAX3454EEUD
-40
o
C to +85
o
C
14 TSSOP
MAX3454EETE
-40
o
C to +85
o
C
16 Thin QFN
MAX3455EEUD
-40
o
C to +85
o
C
14 TSSOP
MAX3455EETE
-40
o
C to +85
o
C
16 Thin QFN
MAX3456EEUD
-40
o
C to +85
o
C
14 TSSOP
MAX3456EETE
-40
o
C to +85
o
C
16 Thin QFN
Typical Operating Circuit appears at end of data sheet.
Pin Configurations appear at end of data sheet.
Selector Guide
PART
V
BUS
POWER-
SUPPLY
VOLTAGE (V)
V
L
POWER-
SUPPLY
VOLTAGE (V)
INTERNAL
PULLUP
RESISTOR
V
BUS
LEVEL
DETECT
ENUMERATE
USB SPEED
SUPPORTED
15kV ESD
PROTECTION
MAX3453E
4.0 to 5.5
1.65 to 3.6
Yes
Yes
Yes
Full
Yes
MAX3454E
3.0 to 5.5
1.65 to 3.6
Yes
No
Yes
Low/full
Yes
MAX3455E
4.0 to 5.5
1.65 to 3.6
No
Yes
No
Low/full
Yes
MAX3456E
3.0 to 5.5
1.65 to 3.6
No
No
No
Low/full
Yes
MAX3453EMAX3456E
15kV ESD-Protected USB Transceivers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
DC ELECTRICAL CHARACTERISTICS
(V
BUS
= +4.0V to +5.5V or V
TRM
= +3.0V to +3.6V, V
L
= +1.65V to +3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at V
BUS
= +5.0V, V
L
= +2.5V, and T
A
= +25
C.) (Note 1)
PARAMETER
SYM B O L CONDITIONS
MIN
TYP
MAX
UNITS
SUPPLY INPUTS (V
BUS
, V
TRM
, V
L
)
Regulated Supply Voltage Output
V
TRM
Internal regulator
3.0
3.3
3.6
V
Operating Supply Current
I
VBUS
Full-speed transmitting and receiving at
12Mbps, C
L
= 50pF on D+ and D- (Note 2)
10
mA
Operating V
L
Supply Current
I
VL
Full-speed transmitting and receiving at
12Mbps (Note 2)
2.5
mA
Full-speed idle: V
D+
> 2.7V, V
D-
< 0.3V
250
350
Full-Speed Idle and SE0 Supply
Current
I
VBUS(IDLE)
SE0: V
D+
< 0.3V, V
D-
< 0.3V
250
350
A
MAX3453E/MAX3455E
15
Static V
L
Supply Current
I
VL(STATIC)
Full-speed idle,
SE0, or suspend
mode
MAX3454E/MAX3456E
5
A
MAX3453E
(ENUM = low),
MAX3455E
40
Suspend Supply Current
I
VBUS(SUSP)
VM = VP = open,
SUS = OE = high MAX3454E
(ENUM = low),
MAX3456E
35
A
Disable Mode Supply Current
I
VBUS(DIS)
V
L
= GND or open
20
A
MAX3453E/MAX3455E
20
Sharing Mode V
L
Supply Current
I
VL(SHARING)
V
BUS
= GND or
open, OE = low,
VP = low or high,
VM = low or
high, SUS = high
MAX3454E/MAX3456E
5
A
D+/D- Sharing Mode Load
Current
I
D_(SHARING)
V
BUS
= GND or open, V
D_
= 0 or +5.5V
20
A
D+/D- Disable Mode Load
Current
I
D_(DIS)
V
L
= GND or open, V
D_
= 0 or +5.5V
5
A
V
BUS
, V
L
, D+, D- to GND.......................................-0.3V to +6.0V
V
TRM
to GND ............................................-0.3V to (V
BUS
+ 0.3V)
VP, VM, SUS, ENUM, SPD,
RCV, OE, BD to GND ................................-0.3V to (V
L
+ 0.3V)
Current (into any pin) ........................................................
15mA
Short-Circuit Current (D+ and D-)...................................
150mA
Continuous Power Dissipation (T
A
= +70
C)
14-Pin TSSOP (derate 9.1mW/
C above +70C) .........727mW
16-Pin Thin QFN (derate 14.7mW/
C above +70C)....1176mW
Operating Temperature Range ...........................-40
C to +85C
Junction Temperature ......................................................+150
C
Storage Temperature Range .............................-65
C to +150C
Lead Temperature (soldering, 10s) .................................+300
C
MAX3453EMAX3456E
15kV ESD-Protected USB Transceivers
_______________________________________________________________________________________
3
DC ELECTRICAL CHARACTERISTICS (continued)
(V
BUS
= +4.0V to +5.5V or V
TRM
= +3.0V to +3.6V, V
L
= +1.65V to +3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at V
BUS
= +5.0V, V
L
= +2.5V, and T
A
= +25
C.) (Note 1)
PARAMETER
SYM B O L CONDITIONS
MIN
TYP
MAX
UNITS
MAX3453E/MAX3455E, supply lost
3.6
MAX3453E/MAX3455E, supply present
4.0
MAX3454E/MAX3456E, supply lost
0.8
USB Power-Supply Detection
Threshold
V
TH_VBUS
MAX3454E/MAX3456E, supply present
(Note 3)
3.6
V
MAX3453E/MAX3455E
40
USB Power-Supply Detection
Hysteresis
V
HYST_VBUS
MAX3454E/MAX3456E
75
mV
V
L
Power-Supply Detection
Threshold
V
TH_VL
0.85
V
DIGITAL INPUTS/OUTPUTS (VP, VM, RCV, SUS,
OE, SPD, BD, ENUM)
Input Voltage Low
V
IL
VM, VP, SUS, SPD, ENUM, OE
0.3 x V
L
V
Input Voltage High
V
IH
VM, VP, SUS, SPD, ENUM, OE
0.7 x V
L
V
Output Voltage Low
V
OL
VM, VP, RCV, BD, I
OL
= +2mA
0.4
V
Output Voltage High
V
OH
VM, VP, RCV, BD, I
OH
= -2mA
V
L
- 0.4
V
Input Leakage Current
I
LKG
-1
+1
A
Input Capacitance
C
IN
Measured from input to GND
10
pF
ANALOG INPUTS/OUTPUTS (D+, D-)
Differential Input Sensitivity
V
ID
|V
D+
- V
D-
|
0.2
V
Differential Common-Mode
Voltage
V
CM
Includes V
ID
range
0.8
2.5
V
Single-Ended Input Low Voltage
V
ILSE
0.8
V
Single-Ended Input High Voltage
V
IHSE
2.0
V
Hysteresis
V
HYST
250
mV
Output Voltage Low
V
OLD
R
L
= 1.5k
to +3.6V
0.3
V
Output Voltage High
V
OHD
R
L
= 15k
to GND
2.8
3.6
V
Off-State Leakage Current
I
LZ
-1
+1
A
Transceiver Capacitance
C
IND
Measured from D_ to GND
20
pF
Driver Output Impedance
Z
DRV
Steady-state drive
3.5
15.5
Input Impedance
Z
IN
Driver off
10
M
Internal Pullup Resistance
R
PULLUP
I
LOAD
= 500A (MAX3453E/MAX3454E)
(Note 4)
1.425
1.575
k
ESD PROTECTION (D+, D-)
Human Body Model
15
kV
IEC 1000-4-2 Contact Discharge
8
kV
MAX3453EMAX3456E
15kV ESD-Protected USB Transceivers
4
_______________________________________________________________________________________
Note 1: Parameters are 100% production tested at +25
C, unless otherwise noted. Limits over temperature are guaranteed by design.
Note 2: Guaranteed by design, not production tested.
Note 3: Production tested to +2.7V for V
L
< +3.0V.
Note 4: Including external 27
series resistor.
TIMING CHARACTERISTICS
(V
BUS
= +4.0V to +5.5V or V
TRM
= +3.0V to +3.6V, V
L
= +1.65V to +3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at V
BUS
= +5V, V
L
= +2.5V, and T
A
= +25C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DRIVER CHARACTERISTICS (Full-Speed Mode, C
L
= 50pF)
Rise Time
t
FR
10% to 90% of |V
OHD
- V
OLD
|, Figures 1, 6
4
20
ns
Fall Time
t
FF
90% to 10% of |V
OHD
- V
OLD
|, Figures 1, 6
4
20
ns
Rise/Fall-Time Matching (Note 2)
t
FR
/ t
FF
Excluding the first transition from idle state,
Figures 1, 6
90
110
%
Output Signal Crossover Voltage
(Note 2)
V
CRS_F
Excluding the first transition from idle state,
Figures 2, 6
1.3
2.0
V
t
PLH_DRV
Low-to-high transition, Figures 2, 6
18
Driver Propagation Delay
t
PHL_DRV
High-to-low transition, Figures 2, 6
18
ns
t
PHZ_DRV
High-to-off transition, Figure 3
20
ns
Driver Disable Delay
t
PLZ_DRV
Low-to-off transition, Figure 3
20
ns
t
PZH_DRV
Off-to-high transition, Figure 3
20
ns
Driver Enable Delay
t
PZL_DRV
Off-to-low transition, Figure 3
20
ns
DRIVER CHARACTERISTICS (low-speed mode, C
L
= 200pF to 600pF, MAX3454E/MAX3455E/MAX3456E)
Rise Time
t
LR
10% to 90% of |V
OHD
- V
OLD
|, Figures 1, 6
75
300
ns
Fall Time
t
LF
90% to 10% of |V
OHD
- V
OLD
|, Figures 1, 6
75
300
ns
Rise/Fall-Time Matching
t
LR
/ t
LF
Excluding the first transition from idle state,
Figures 1, 6
80
125
%
Output Signal Crossover Voltage
V
CRS_L
Excluding the first transition from idle state,
Figures 2, 6
1.3
2.0
V
RECEIVER CHARACTERISTICS (C
L
= 15pF)
t
PLH_RCV
Low-to-high transition, Figures 4, 6
22
Differential Receiver Propagation
Delay
t
PHL_RCV
High-to-low transition, Figures 4, 6
22
ns
t
PLH_SE
Low-to-high transition, Figures 4, 6
12
Single-Ended Receiver
Propagation Delay
t
PHL_SE
High-to-low transition, Figures 4, 6
12
ns
t
PHZ_SE
High-to-off transition, Figure 5
15
Single-Ended Receiver Disable
Delay
t
PLZ_SE
Low-to-off transition, Figure 5
15
ns
t
PZH_SE
Off-to-high transition, Figure 5
15
Single-Ended Receiver Enable
Delay
t
PZL_SE
Off-to-low transition, Figure 5
15
ns
MAX3453EMAX3456E
15kV ESD-Protected USB Transceivers
_______________________________________________________________________________________
5
SINGLE-ENDED RECEIVER
PROPAGATION DELAY vs. V
L
MAX3453E-56E toc01
V
L
(V)
PROPAGATION DELAY (ns)
3.4
3.2
1.8 2.0 2.2
2.6 2.8
2.4
3.0
1
2
3
4
5
6
7
8
0
1.6
3.6
C
L
= 15pF
T
A
= +25
C
T
A
= +85
C
T
A
= -40
C
RISE-/FALL-TIME MATCHING
(FULL SPEED)
MAX3453E-56E toc02
20ns/div
D+/D-
1V/div
C
L
= 50pF
MAX3453E-56E toc03
100ns/div
RISE-/FALL-TIME MATCHING
(LOW SPEED)
C
L
= 400pF
D+/D-
1V/div
Typical Operating Characteristics
(V
BUS
= +5.0V, V
L
= +3.3V, T
A
= +25
C, unless otherwise noted.)
MAX3453E-56E toc04
20ns/div
OE, VP, VM TIMING
C
L
= 15pF
VP
2V/div
VM
2V/div
OE
5V/div
SUPPLY CURRENT
vs. D+/D- CAPACITANCE
MAX3453E-56E toc05
D+/D- CAPACITANCE (pF)
SUPPLY CURRENT (mA)
350
300
200 250
100 150
50
2
4
6
8
10
12
14
16
18
20
22
24
0
0
400
SPD = GND, f
IN
= 750kHz
SPD = V
L
, f
IN
= 6MHz
LOGIC SUPPLY CURRENT
vs. D+/D- CAPACITANCE
MAX3453E-56E toc06
D+/D- CAPACITANCE (pF)
LOGIC SUPPLY CURRENT (
A)
350
300
200 250
100 150
50
50
100
150
200
250
300
350
400
450
500
0
0
400
SPD = GND, f
IN
= 750kHz
SPD = V
L
, f
IN
= 6MHz
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