General Description
The MAX3453E–MAX3456E ±15kV ESD-protected USBcompliant 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 MAX3453E–MAX3456E operate
with VLas low as +1.65V, ensuring compatibility with
low-voltage ASICs.
The MAX3453E–MAX3456E feature a logic-selectable
suspend mode that reduces current consumption to
less than 40µA. Integrated ±15kV ESD protection protects the USB D+ and D- bidirectional bus connections.
The MAX3453E supports only full-speed (12Mbps)
operation. The MAX3453E/MAX3454E feature an internal 1.5kΩ USB pullup resistor and an enumeration function that allows devices to logically disconnect while
plugged in. The MAX3453E/MAX3455E provide a pushpull bus-detect (BD) output that asserts high when
V
BUS
> +4.0V.
The MAX3453E–MAX3456E operate over the extended
temperature range (-40°C to +85°C) 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
♦ ±15kV ESD Protection on D+ and D-
♦ USB 1.1 and USB 2.0 (Low-Speed and Full-Speed)-
Compliant Transceivers
♦ Combined VP and VM Inputs/Outputs
♦ +1.65V to +3.6V V
L
Logic Supply Input for
Interfacing with Low-Voltage ASICs
♦ Enumerate Input Function (MAX3453E/MAX3454E)
♦ Powered from Li+ Battery as Low as +3.1V
(MAX3454E/MAX3456E)
♦ V
BUS
Detection (MAX3453E/MAX3455E)
♦ Internal Pullup Resistor (MAX3453E/MAX3454E)
♦ No Power-Supply Sequencing Required
MAX3453E–MAX3456E
±15kV ESD-Protected USB Transceivers
________________________________________________________________ Maxim Integrated Products 1
19-2924; Rev 4; 2/06
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
Typical Operating Circuit appears at end of data sheet.
Pin Configurations appear at end of data sheet.
Selector Guide
INTERNAL
PULLUP
RESISTOR
V
BUS
LEVEL
DETECT
4.0 to 5.5 1.65 to 3.6 Yes Yes Yes Full Yes
3.0 to 5.5 1.65 to 3.6 Yes No Yes Low/full Yes
4.0 to 5.5 1.65 to 3.6 No Yes No Low/full Yes
3.0 to 5.5 1.65 to 3.6 No No No Low/full Yes
TEMP RANGE
-40oC to +85oC
-40oC to +85oC 16 Thin QFN
-40oC to +85oC
-40oC to +85oC 16 Thin QFN
-40oC to +85oC
-40oC to +85oC 16 Thin QFN
-40oC to +85oC
-40oC to +85oC 16 Thin QFN
VOLTAGE (V)
MAX3453E
MAX3454E
MAX3455E
MAX3456E
VOLTAGE (V)
SUPPORTED
MAX3453E–MAX3456E
±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, VL= +1.65V to +3.6V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at V
BUS
= +5.0V, VL= +2.5V, and TA= +25°C.) (Note 1)
SUPPLY INPUTS (V
BUS
, V
TRM
, VL)
V
TRM
Internal regulator 3.0 3.3 3.6 V
Operating Supply Current I
VBUS
Full-speed transmitting and receiving at
10 mA
Operating VL Supply Current I
VL
Full-speed transmitting and receiving at
12Mbps (Note 2)
2.5 mA
Full-speed idle: VD+ > 2.7V, VD- < 0.3V
350
Full-Speed Idle and SE0 Supply
Current
SE0: VD+ < 0.3V, VD- < 0.3V
15
Static VL Supply Current
Full-speed idle,
SE0, or suspend
mode
5
µA
MAX3453E
(ENUM = low),
MAX3455E
40
Suspend Supply Current
MAX3454E
(ENUM = low),
MAX3456E
35
µA
Disable Mode Supply Current
V
BUS
= GND or
open, OE = low,
VP = low or high,
VM = low or
5
µA
D+/D- Sharing Mode Load
Current
V
BUS
= GND or open, VD_ = 0 or +5.5V 20 µA
D+/D- Disable Mode Load
Current
I
D_(DIS)
VL = GND or open, VD_ = 0 or +5.5V 5 µA
V
BUS
, VL, 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 (VL+ 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 +70°C) .........727mW
16-Pin Thin QFN (derate 14.7mW/°C above +70°C)....1176mW
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
Regulated Supply Voltage Output
I
Sharing Mode VL Supply Current I
VBUS(IDLE
I
VL(STATIC
I
VBUS(SUSP
I
VBUS(DIS
VL(SHARING
I
D_(SHARING
12Mbps, CL = 50pF on D+ and D- (Note 2)
250
250
MAX3453E/MAX3455E
MAX3454E/MAX3456E
SUS = OE = high
high, SUS = high
MAX3453E/MAX3455E
MAX3454E/MAX3456E
MAX3453E–MAX3456E
±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, VL= +1.65V to +3.6V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at V
BUS
= +5.0V, VL= +2.5V, and TA= +25°C.) (Note 1)
MAX3453E/MAX3455E, supply lost 3.6
MAX3453E/MAX3455E, supply present 4.0
MAX3454E/MAX3456E, supply lost 0.8
USB Power-Supply Detection
Threshold
MAX3454E/MAX3456E, supply present
(Note 3)
3.6
V
MAX3453E/MAX3455E 40
USB Power-Supply Detection
Hysteresis
MAX3454E/MAX3456E 75
mV
VL Power-Supply Detection
Threshold
V
TH_VL
V
DIGITAL INPUTS/OUTPUTS (VP, VM, RCV, SUS, OE, SPD, BD, ENUM)
Input-Voltage Low V
IL
VM, VP, SUS, SPD, ENUM, OE
V
Input-Voltage High V
IH
VM, VP, SUS, SPD, ENUM, OE
V
Output-Voltage Low V
OL
VM, VP, RCV, BD, IOL = +2mA 0.4 V
Output-Voltage High V
OH
VM, VP, RCV, BD, IOH = -2mA
V
Input Leakage Current I
LKG
-1 +1 µA
Input Capacitance C
IN
Measured from input to GND 10 pF
ANALOG INPUTS/OUTPUTS (D+, D-)
Differential Input Sensitivity V
ID
|VD+ - VD-| 0.2 V
Differential Common-Mode
Voltage
V
CM
Includes VID range 0.8 2.5 V
V
IHSE
2.0 V
Hysteresis V
HYST
mV
Output-Voltage Low V
OLD
RL = 1.5kΩ to +3.6V 0.3 V
Output-Voltage High V
OHD
RL = 15kΩ to GND 2.8 3.6 V
Off-State Leakage Current I
LZ
-1 +1 µA
Transceiver Capacitance C
IND
Measured from D_ to GND 20 pF
Driver Output Impedance Z
DRV
Steady-state drive 3.5
Ω
Input Impedance Z
IN
Driver off 10 MΩ
Internal Pullup Resistance
I
LOAD
= 500µA (MAX3453E/MAX3454E)
(Note 4)
kΩ
ESD PROTECTION (D+, D-)
Human Body Model
Single-Ended Input Low Voltage
Single-Ended Input High Voltage
IEC 61000-4-2 Contact Discharge
SYM B O L
V
TH_VBUS
V
HYST_VBUS
R
PULLUP
MIN TYP MAX
0.7 x V
VL - 0.4
1.425 1.575
0.85
L
250
±15
0.3 x V
L
15.5
MAX3453E–MAX3456E
±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 VL< +3.0V.
Note 4: Including external 27Ω series resistor.
TIMING CHARACTERISTICS
(V
BUS
= +4.0V to +5.5V or V
TRM
= +3.0V to +3.6V, VL= +1.65V to +3.6V, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at V
BUS
= +5V, VL= +2.5V, and TA= +25°C.) (Note 1)
DRIVER CHARACTERISTICS (Full-Speed Mode, CL = 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)
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
Low-to-high transition, Figures 2, 6 18
Driver Propagation Delay
High-to-low transition, Figures 2, 6 18
ns
High-to-off transition, Figure 3 20 ns
Driver Disable Delay
Low-to-off transition, Figure 3 20 ns
Off-to-high transition, Figure 3 20 ns
Driver Enable Delay
Off-to-low transition, Figure 3 20 ns
DRIVER CHARACTERISTICS (low-speed mode, CL = 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
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 (CL = 15pF)
Low-to-high transition, Figures 4, 6 22
Differential Receiver Propagation
Delay
High-to-low transition, Figures 4, 6 22
ns
Low-to-high transition, Figures 4, 6 12
Single-Ended Receiver
Propagation Delay
High-to-low transition, Figures 4, 6 12
ns
High-to-off transition, Figure 5 15
Single-Ended Receiver Disable
Delay
t
PLZ_SE
Low-to-off transition, Figure 5 15
ns
Off-to-high transition, Figure 5 15
Single-Ended Receiver Enable
Delay
t
PZL_SE
Off-to-low transition, Figure 5 15
ns
tFR / t
FF
t
PLH_DRV
t
PHL_DRV
t
PHZ_DRV
t
PLZ_DRV
t
PZH_DRV
t
PZL_DRV
tLR / t
t
PLH_RCV
t
PHL_RCV
t
PLH_SE
t
PHL_SE
t
PHZ_SE
t
PZH_SE
LF
MAX3453E–MAX3456E
±15kV ESD-Protected USB Transceivers
_______________________________________________________________________________________ 5
SINGLE-ENDED RECEIVER
PROPAGATION DELAY vs. V
L
MAX3453E-56E toc01
VL (V)
PROPAGATION DELAY (ns)
3.43.21.8 2.0 2.2 2.6 2.82.4 3.0
1
2
3
4
5
6
7
8
0
1.6 3.6
CL = 15pF
TA = +25°C
TA = +85°C
TA = -40°C
RISE-/FALL-TIME MATCHING
(FULL SPEED)
MAX3453E-56E toc02
20ns/div
D+/D1V/div
CL = 50pF
MAX3453E-56E toc03
100ns/div
RISE-/FALL-TIME MATCHING
(LOW SPEED)
CL = 400pF
D+/D1V/div
Typical Operating Characteristics
(V
BUS
= +5.0V, VL= +3.3V, TA= +25°C, unless otherwise noted.)
MAX3453E-56E toc04
20ns/div
OE, VP, VM TIMING
CL = 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)
350300200 250100 15050
2
4
6
8
10
12
14
16
18
20
22
24
0
0 400
SPD = GND, fIN = 750kHz
SPD = VL, fIN = 6MHz
LOGIC SUPPLY CURRENT
vs. D+/D- CAPACITANCE
MAX3453E-56E toc06
D+/D- CAPACITANCE (pF)
LOGIC SUPPLY CURRENT (µA)
350300200 250100 15050
50
100
150
200
250
300
350
400
450
500
0
0400
SPD = GND, fIN = 750kHz
SPD = VL, fIN = 6MHz
MAX3453E–MAX3456E
±15kV ESD-Protected USB Transceivers
6 _______________________________________________________________________________________
PIN
MAX3454E/
MAX3455E/
MAX3456E
MAX3453E
TSSOP
FUNCTION
1 15 1 15 V
L
Digital I/O Connections Logic Supply. Connect a +1.65V to
+3.6V supply to V
L
. Bypass VL to GND with a 0.1µF ceramic
capacitor.
21——SPD
Speed Selector Input. Connect SPD to GND to select the lowspeed data rate (1.5Mbps). Connect SPD to V
L
to select the fullspeed data rate (12Mbps). The MAX3453E only supports fullspeed operation.
3232RCV
D i ffer enti al Recei ver O utp ut. RC V r esp ond s to the d i ffer enti al i np uts
on D + and D - ( see Tab l es 3, 4) . RC V asser ts l ow i f S U S = V
L
.
4343VP
Receiver Output/Driver Input. VP functions as a receiver output
when OE = VL. VP duplicates D+ when receiving. VP functions
as a driver input when OE = GND.
5454VM
Receiver Output/Driver Input. VM functions as a receiver output
when OE = V
L
. VM duplicates D- when receiving. VM functions
as a driver input when OE = GND.
6, 13*
6 5, 8, 16 N.C.
No Connection. Not internally connected.
*Pin 13 is No Connection for MAX3456E only.
7676GNDGround
8787SUS
Suspend Input. Drive SUS low for normal operation. Drive SUS
high to put the MAX3453E–MAX3456E into suspend mode. RCV
asserts low in suspend mode. VP and VM remain active in
suspend mode.
9999OE
Output Enable. Drive OE to GND to enable the transmitter
outputs. Drive OE to V
L
to disable the transmitter outputs. OE
also controls the I/O direction of VP and VM (see Tables 3, 4).
10 10 10 10 D-
USB Input/Output. For OE = GND, D- functions as a USB
output, with VM providing the input signal. For OE = V
L
, Dfunctions as a USB input, with VM functioning as a single-ended
receiver output. Connect a 1.5kΩ resistor from D- to V
TRM
for
low-speed (1.5Mbps) operation (MAX3455E/MAX3456E). Drive
ENUM to V
L
to connect the internal 1.5kΩ resistor from D- to
V
TRM
for low-speed (MAX3454E, SPD = GND) operation.
THIN QFN
5, 8, 13*, 16
THIN QFN