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MAX3451E Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX3451E Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 14 page 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 1.5kΩ 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 Features ♦ ±15kV ESD Protection on D+ and D- ♦ Combined VP and VM Inputs/Outputs ♦ +1.65V to +3.6V VL Logic Supply Input for Interfacing with Low-Voltage ASICs ♦ Enumerate Input Function (MAX3451E) ♦ Powered from Li+ Battery as Low as +3.1V (MAX3450E and MAX3451E) ♦ VBUS Detection (MAX3452E) ♦ Pin Compatible with Micrel MIC2550A (MAX3450E) ♦ Internal D+ or D- Pullup Resistor (MAX3451E) ♦ No Power-Supply Sequencing Required ±15kV ESD-Protected USB Transceivers ________________________________________________________________ Maxim Integrated Products 1 9 TOP VIEW TSSOP + + 14 1 VL VBUS 13 2 SPD N.C. *(ENUM) **(BD) 12 3 RCV VTRM 11 4 VP D+ 10 5 VM D- 8 7 GND SUS 3mm x 3mm THIN QFN-EP 16 1 2 3 4 12 11 10 9 15 14 13 56 7 8 VTRM D+ D- OE RCV VP ***EXPOSED PAD VM *MAX3451E ONLY **MAX3452E ONLY ***CONNECT EXPOSED PADDLE TO GND OR LEAVE UNCONNECTED SPD MAX3450E MAX3451E MAX3452E MAX3450E MAX3451E MAX3452E 6 N.C. OE Pin Configurations 19-2843; Rev 2; 10/08 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Ordering Information PART PIN-PACKAGE TOP MARK MAX3450EEUD+ 14 TSSOP — MAX3450EETE+ 16 Thin QFN-EP† AAJ MAX3451EEUD+ 14 TSSOP — MAX3451EETE+ 16 Thin QFN-EP† AAK MAX3452EEUD+ 14 TSSOP — MAX3452EETE+ 16 Thin QFN-EP† AAL Typical Operating Circuit appears at end of data sheet. Note: All devices are specified over the -40°C to +85°C operat- ing temperature range. + Denotes lead(Pb)-free package/RoHS-compliant package. †EP = Exposed pad. |
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