MAX5954LETX+T Maxim Integrated Products, MAX5954LETX+T Datasheet
MAX5954LETX+T
Specifications of MAX5954LETX+T
Related parts for MAX5954LETX+T
MAX5954LETX+T Summary of contents
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... Typical Application Circuit appears at end of data sheet. SMBus is a trademark of Intel Corp. PCI Express is a trademark of PCI-SIG Corp. ________________________________________________________________ Maxim Integrated Products 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. Single PCI Express, Hot-Plug ♦ ...
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Single PCI Express, Hot-Plug Controller ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND, unless otherwise noted.) 12VIN......................................................................-0.3V to +14V 12G............................................................-0. 12S, 12S-, 3.3G ......................................-0. FAULT ..........................................-0.3V to +6V 3.3VAUXIN, ON, PWRGD ....................................................................-0.3V to +6V PGND ....................................................................-0.3V ...
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Single PCI Express, Hot-Plug Controller ELECTRICAL CHARACTERISTICS (continued 12V, V 12VIN 12S- 12S+ 3.3S+ OUTPUT = 12G = 3.3G = OPEN, INPUT = PRES-DET = PGND = GND, T are +25°C.) ...
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Single PCI Express, Hot-Plug Controller ELECTRICAL CHARACTERISTICS (continued 12V 12VIN 12S- 12S+ 3.3S+ OUTPUT = 12G = 3.3G = OPEN, INPUT = PRES-DET = PGND = GND, T are at T ...
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Single PCI Express, Hot-Plug Controller ( 12V 12VIN 12S+ 3.3VAUXIN FAULT = 10kΩ to 3.3VAUXIN, PWRGD = 10kΩ to 3.3VAUXO, T Circuit.) 12VIN INPUT SUPPLY CURRENT vs. TEMPERATURE 0.505 0.504 0.503 0.502 0.501 0.500 ...
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Single PCI Express, Hot-Plug Controller ( 12V 12VIN 12S+ 3.3VAUXIN 3.3S+ FAULT = 10kΩ to 3.3VAUXIN, PWRGD = 10kΩ to 3.3VAUXO, T Circuit.) 12VIN UNDERVOLTAGE-LOCKOUT THRESHOLD vs. TEMPERATURE 10.20 10.15 10.10 10.05 10.00 9.95 ...
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Single PCI Express, Hot-Plug Controller ( 12V 12VIN 12S+ 3.3VAUXIN FAULT = 10kΩ to 3.3VAUXIN, PWRGD = 10kΩ to 3.3VAUXO, T Circuit.) 3.3V INPUT/3.3V AUXILIARY INPUT POWER-UP 100ms/div FAULT CONDITION ON 12V OUTPUT (AUTORESTART ...
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Single PCI Express, Hot-Plug Controller ( 12V 12VIN 12S+ 3.3VAUXIN 3.3S+ FAULT = 10kΩ to 3.3VAUXIN, PWRGD = 10kΩ to 3.3VAUXO, T Circuit.) FAULT CONDITION ON 12V OUTPUT R LOAD STEP TO 1.5Ω t ...
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Single PCI Express, Hot-Plug Controller ( 12V 12VIN 12S+ 3.3VAUXIN FAULT = 10kΩ to 3.3VAUXIN, PWRGDA = 10kΩ to 3.3VAUXO, T Circuit.) SHORT CIRCUIT ON 12V OUTPUT 4µs/div SHORT CIRCUIT ON 3.3V OUTPUT 2µs/div ...
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Single PCI Express, Hot-Plug Controller ( 12V 12VIN 12S+ 3.3VAUXIN 3.3S+ FAULT = 10kΩ to 3.3VAUXIN, PWRGDA = 10kΩ to 3.3VAUXO, T Circuit.) POWER-UP INTO FAULT (3.3V MAIN) R LOAD t SU 4ms/div PRESENT-DETECT ...
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Single PCI Express, Hot-Plug Controller ( 12V 12VIN 12S+ 3.3VAUXIN FAULT = 10kΩ to 3.3VAUXIN, PWRGDA = 10kΩ to 3.3VAUXO, T Circuit.) DEBOUNCED ON/OFF OPERATION 10ms/div ______________________________________________________________________________________ Typical Operating Characteristics (continued) = 3.3V, PRES-DET ...
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Single PCI Express, Hot-Plug Controller PIN NAME Present-Detect Input. PRES-DET accepts inputs from the PRSNT#2 pin on a PCI-E connector. PRES-DET has an internal pullup to 3.3VAUXIN. When PRES-DET is low, the outputs follow the command from ON PRES-DET 1 ...
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Single PCI Express, Hot-Plug Controller PIN NAME 25 T2 Test Input. Connect T2 to GND. Overcurrent Timeout Programming Input. Connect a resistor between 500Ω and 500kΩ from TIM to GND 28 TIM to program t 31 OUTPUT Digital Output. 4ms ...
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Single PCI Express, Hot-Plug Controller R R TIM PORADJ TIM PORADJ t FAULT OSCILLATOR t POR OSCILLATOR MAX5954 INPUT COMPARATORS AND CHIP CONTROL LOGIC ON AUXON Figure 1. Functional Diagram 14 ______________________________________________________________________________________ IN OUT 12VIN PWRGD CHARGE PUMP DEBOUNCE FAST ...
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Single PCI Express, Hot-Plug Controller Table 1. Power Requirements for PCI Express Connectors POWER RAIL 3.3V Voltage Tolerance Supply Current Capacitive Load 12V Voltage Tolerance Supply Current Capacitive Load 3.3V AUXILIARY Voltage Tolerance ...
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Single PCI Express, Hot-Plug Controller V PGTH12 V V PGTH3.3 ON_,TH V PGTH3.3AUX t POR_HL 3.3AUXIN RISING EDGE PWRGD IS PULLED UP TO 3.3. FAULT IS PULLED UP TO 3.3AUXIN. Figure 2. Power-Up Timing, No Fault V 12ILIM,TH R SENSE ...
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Single PCI Express, Hot-Plug Controller stays high for at least 4ms. After the debounce time, OUTPUT follows INPUT. Figure 5 shows the timing dia- gram describing the INPUT/OUTPUT debounced feature. Present-Detect and Forced-On Inputs PRES-DET input detects the PRSNT#2 pin ...
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Single PCI Express, Hot-Plug Controller SHUT DOWN 12V AND 3.3V OUTPUTS. ASSERT FAULT STAY WAITING FOR t RESTART Y LATCH-OFF OPTION? STAY WAITING FOR ON_ TRANSITION HIGH->LOW->HIGH 3.3AUXIN IS ON AND ABOVE UVLO STAY WAITING FOR BOTH RESET FAULT ON ...
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Single PCI Express, Hot-Plug Controller Applications Information Setting the Fault Timeout Period ( the time an overcurrent or overtemperature FAULT fault must remain for the MAX5954 to disable the main or auxiliary outputs. Program the fault timeout period ...
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Single PCI Express, Hot-Plug Controller Input Transients The 12V input (12VIN), the 3.3V input (3.3S+), and the 3.3V auxiliary (3.3VAUXIN) must be above their UVLO thresholds before startup can occur. Input transients can cause the input voltage to sag below ...
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Single PCI Express, Hot-Plug Controller ADD-IN PCI EXPRESS CARD SLOT PRSNT1# +12V GND PWRGD# 10kΩ 3.3VAUX SI7448DP-T1 +3.3V PRSNT2# ______________________________________________________________________________________ 3.3AUXIN SI7448DP-T1 8mΩ 0.1µF PWRGD MAX5954 3.3VAUX0 PGND GND R2 Q2 5mΩ V 3.3AUXIN 10kΩ MRL LEDs ...
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... 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. 22 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2006 Maxim Integrated Products (NE- ...