MAX14550E Maxim, MAX14550E Datasheet
MAX14550E
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MAX14550E Summary of contents
Page 1
... The MAX14550E uses the internal or external resistor based on the voltage at RDP USB Revision 1.0-compliant device is attached, the MAX14550E connects a short across DP and DM to allow correct charger detection. The MAX14550E auto- detection circuit can be disabled and either a DP/DM short or resistor network is chosen as the default ...
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... For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. 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 ...
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USB Host Charger Identification Analog Switch ELECTRICAL CHARACTERISTICS (continued +2.8V to +5.5V -40NC to +85NC, unless otherwise noted. Typical values are otherwise noted.) (Note 2) PARAMETER SYMBOL On-Resistance Flatness ...
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... Input Leakage Current ESD PROTECTION All Pins ESD Protection Level (DP and DM Only) Note 2: All devices are 100% production tested at T Note 3: Guaranteed by design CB1 V TD_ V IN CB0 LOGIC MAX14550E INPUT GND C INCLUDES FIXTURE AND STRAY CAPACITANCE OUT ...
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... IN+ 50 50% IN 50% OUT 50% OUT SK(0) Figure 2. Output Signal Skew Test Circuits/Timing Diagrams (continued) MAX14550E TDP DP OUT OUT CB0 CB1 INFALL 90% 10% t OUTFALL 90% 10% RISE TIME DELAY = | INRISE OUTRISE ...
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... CB0 CB1 CC MAX14550E SWITCH IS ENABLED. MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN TD_ AND "OFF" D_ TERMINAL ON EACH SWITCH. CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL. SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED. Figure 3. Off-Isolation and Crosstalk (T = +25° ...
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... SUPPLY CURRENT vs. SUPPLY VOLTAGE +85° +25° -40° 2.8 3.1 3.4 3.7 4.0 4.3 4.6 V (V) CC LOGIC-INPUT THRESHOLD vs. SUPPLY VOLTAGE 1.2 1.1 CB_ RISING 1.0 0.9 0.8 CB_ FALLING 0.7 0.6 0.5 0.4 2.8 3.1 3.4 3.7 4.0 4.3 4.6 5.5 6.0 V (V) CC EYE DIAGRAM MAX14550E toc11 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 n TIME ( 9 CB0 CB1 RDP CC 4.9 5.2 5.5 4.9 5.2 5.5 7 ...
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... RDP 5 6 TDFN (3mm 3mm) × *CONNECT EP TO GND. FUNCTION to GND through a 0.1FF capacitor. Place the capacitor as close as possible to the device RISING MAX14550E toc14 300I 35pF 4µs/div Pin Configuration CB1 TDP TDM V CC RDM Pin Description ...
Page 9
... RDP to ground to use the internal resistor-divider (see the Typical Operating Circuit). The user must provide 5V supply voltage to V when the internal resistor-divider CC is used. When the MAX14550E is not operated with the internal resistor-dividers, the device disconnects the internal resistor-dividers’ pullup voltage (V minimize supply current requirements. V ...
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... If the voltage below the 2.1V (typ) threshold, the internal switch disconnects DP from the resistor network and DM. DP and DM are shorted together. The MAX14550E then monitors the voltage deter- mine when to reconnect the resistor network. If the volt- 10 3.3V TO 5.0V ...
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USB Host Charger Identification Analog Switch Table 1. Digital Input States RDP V CC < 0.4V = INTERNAL RESISTOR (V) > 0.4V = EXTERNAL RESISTOR 3.3 RDP < 0.4V 3.3 RDP > 0.4V RDP < 0.4V 5.0 RDP > 0.4V ...
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... Immediately draws 500mA when 5V is None attached to V Device uses a specific method Shorted D+/D- (voltages and timing well defined) Shorted D+/D- Method not defined MAX14550E SUPPORT iPhone 2G, 3G, and 3GS; iPod classic®; iPod video; iPod BUS touch (1st and 2nd generations); iPod nano® (3rd, 4th, 5th generation) ...
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USB Host Charger Identification Analog Switch 1500Ω 1MΩ DISCHARGE CHARGE-CURRENT RESISTANCE LIMIT RESISTOR HIGH- C STORAGE VOLTAGE S 100pF CAPACITOR DC SOURCE Figure 5a. Human Body ESD Test Model 5V V BUS HOST ...
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USB Host Charger Identification Analog Switch 5V V BUS HOST iPod ATTACH IN S3 ATTACH USB CONNECTION CHARGING CURRENT ≤ 500mA 5V V BUS 0.8V HOST TRANSITION ...
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USB Host Charger Identification Analog Switch 5V V BUS HOST iPod ATTACH IN S3 ATTACH USB CONNECTION ≤ 500mA CHARGING CURRENT 5V 4.0V V BUS 0.8V HOST S3 t FALL TO 4. ...
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... Chip Information PROCESS: BiCMOS 16 5.0V USB TRANSCEIVER TDM TDP CC MAX14550E 0.4V 500kI 2.1V CBO MICROCONTROLLER For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status ...
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... Replaced the timing diagrams in Timing Charts. Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2010 Maxim Integrated Products © ...