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Maxim Integrated - 15kV ESD-Protected USB Transceivers

Numéro de référence MAX3450EEUD
Description 15kV ESD-Protected USB Transceivers
Fabricant Maxim Integrated 
Logo Maxim Integrated 





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MAX3450EEUD fiche technique
19-2843; Rev 1; 11/03
±15kV ESD-Protected USB Transceivers
General Description
The MAX3450E/MAX3451E/MAX3452E 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 MAX3450E/MAX3451E/
MAX3452E operate with VL as low as +1.65V, ensuring
compatibility with low-voltage ASICs.
The MAX3450E/MAX3451E/MAX3452E feature a logic-
selectable suspend mode that reduces current con-
sumption to less than 40µA. Integrated ±15kV ESD
protection protects the USB D+ and D- bidirectional
bus connections. The MAX3450E is pin compatible with
Micrel’s MIC2550A. The MAX3451E features an internal
1.5kUSB pullup resistor and an enumeration function
that allows devices to logically disconnect while
plugged in. The MAX3452E provides a push-pull bus-
detect (BD) output that asserts high when VBUS is
greater than +4.0V.
The MAX3450E/MAX3451E/MAX3452E operate over the
-40°C to +85°C extended temperature range and are
available in 14-pin TSSOP and 3mm x 3mm 16-pin thin
QFN packages.
Applications
PDAs
PC Peripherals
Cellular Telephones
Data Cradles
MP3 Players
Typical Operating Circuit appears at end of data sheet.
Features
o ±15kV ESD Protection on D+ and D-
o Combined VP and VM Inputs/Outputs
o +1.65V to +3.6V VL Logic Supply Input for
Interfacing with Low-Voltage ASICs
o Enumerate Input Function (MAX3451E)
o Powered from Li+ Battery as Low as +3.1V
(MAX3450E and MAX3451E)
o VBUS Detection (MAX3452E)
o Pin Compatible with Micrel MIC2550A (MAX3450E)
o Internal D+ or D- Pullup Resistor (MAX3451E)
o No Power-Supply Sequencing Required
PART
MAX3450EEUD
MAX3450EETE
MAX3451EEUD
MAX3451EETE
MAX3452EEUD
MAX3452EETE
Ordering Information
TEMP RANGE
-40oC to +85oC
-40oC to +85oC
-40oC to +85oC
-40oC to +85oC
-40oC to +85oC
-40oC to +85oC
PIN-PACKAGE
14 TSSOP
16 Thin QFN
14 TSSOP
16 Thin QFN
14 TSSOP
16 Thin QFN
Pin Configurations
TOP VIEW
VL 1
SPD 2
RCV 3
VP 4
VM 5
N.C. 6
GND 7
MAX3450E
MAX3451E
MAX3452E
14 VBUS
13 N.C. *(ENUM) **(BD)
12 VTRM
11 D+
10 D-
9 OE
8 SUS
TSSOP
*MAX3451E ONLY
**MAX3452E ONLY
***CONNECT EXPOSED PADDLE TO GND OR LEAVE FLOATING
16 15 14 13
SPD 1
RCV 2
VP 3
VM 4
MAX3450E
MAX3451E
MAX3452E
***EXPOSED PADDLE
567 8
12 VTRM
11 D+
10 D-
9 OE
3mm x 3mm
THIN QFN
________________________________________________________________ Maxim Integrated Products 1
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.

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