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MAX3450E Datasheet, PDF (1/16 Pages) Maxim Integrated Products – ±15kV ESD-Protected USB Transceivers | |||
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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
Micrelâs MIC2550A. The MAX3451E features an internal
1.5k⦠USB 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
5
6
7
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 Maximâs website at www.maxim-ic.com.
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