MAX5934 MAXIM [Maxim Integrated Products], MAX5934 Datasheet
MAX5934
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MAX5934 Summary of contents
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... General Description The MAX5934/MAX5934A are fully integrated hot-swap controllers for +9V to +80V (MAX5934A) positive supply rails. The MAX5934 is optimized for +33V to +80V power-supply rails. These devices allow for the safe insertion and removal of circuit cards into a live back- plane without causing glitches on the backplane power-supply rail ...
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... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = +24V (MAX5934A +48V (MAX5934), GND = 0V +25°C.) (Note 1) ...
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... Positive High-Voltage, Hot-Swap Controllers with Selectable Fault Management and Status Polarity ELECTRICAL CHARACTERISTICS (continued +24V (MAX5934A +48V (MAX5934), GND = 0V +25°C.) (Note 1) A PARAMETER SYMBOL TIMER Pulldown Current I TIMERON ON High Threshold ON Low Threshold ON Hysteresis V ONHYST ON Input Bias Current LATCH/RETRY and POL_SEL ...
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... Positive High-Voltage, Hot-Swap Controllers with Selectable Fault Management and Status Polarity ELECTRICAL CHARACTERISTICS (continued +24V (MAX5934A +48V (MAX5934), GND = 0V +25°C.) (Note 1) A PARAMETER SYMBOL FB_ Low-to-PWRGD_ Low t PHLFB_ Propagation Delay FB_ High-to-PWRGD_ High t PLHFB_ Propagation Delay ...
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Positive High-Voltage, Hot-Swap Controllers with Selectable Fault Management and Status Polarity (V = +48V +25°C, unless otherwise noted SUPPLY CURRENT vs. SUPPLY VOLTAGE 2.7 2.4 2 +25°C 1 +85°C A 1.5 ...
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Positive High-Voltage, Hot-Swap Controllers with Selectable Fault Management and Status Polarity (V = +48V +25°C, unless otherwise noted TIMER PULLUP CURRENT vs. TEMPERATURE -60 -65 -70 -75 -80 -85 -90 -40 - TEMPERATURE ...
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... DC cycle to 1.88%. Connect DC to GND to set the duty cycle to 0.94%. Power-Supply Input. Bypass +80V for the MAX5934A and +33V to +80V for the MAX5934. _______________________________________________________________________________________ FUNCTION . PWRGD2 deasserts when FB2 is lower than V FB2H . PWRGD1 deasserts when FB1 is lower than V FB1H , PWRGD2 asserts. When FB2 drops below V ...
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... Positive High-Voltage, Hot-Swap Controllers with Selectable Fault Management and Status Polarity MAX5934 MAX5934A V P REF GEN OPEN PWRGD1 DRAIN 1.233V UVLO 0.5V 1.233V 8 _______________________________________________________________________________________ FB1 V SENSE GEN LOGIC V P 75µA GND Functional Diagram PWRGD3 4.3V OPEN DRAIN CHARGE PUMP GATE ...
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... MAX5934A act as current regulators using an external sense resistor and MOSFET to limit the amount of cur- rent drawn by the load. The MAX5934A operates from a +9V to +80V supply voltage range and has a default UVLO set to +8.3V. The MAX5934 operates from a +33V to +80V supply voltage range and has a default UVLO set to +31V. The ...
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... GATE provides a high-side gate drive for the external n-channel MOSFET. An internal charge-pump circuit guarantees at least 10V of gate drive for supply voltages higher than 20V (MAX5934A) and a 4.5V gate drive for Power-Up Mode supply voltages between 10.8V and 20V (MAX5934A) (for the MAX5934, see the Electrical Characteristics table) ...
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... Undervoltage Lockout (UVLO) The MAX5934A operates from a +9V to +80V supply voltage range and has a default UVLO set at +8.3V. The MAX5934 operates from a +33V to +80V supply voltage range and has a default UVLO set at +31V. The UVLO thresholds are adjustable using a resistive divider connected to V (see R2 and R3 in Figure 5) ...
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... Figure 9 shows overvoltage waveforms for V (see the Fault Management ( LATCH /RETRY) section for restart conditions). 250 300 The MAX5934/MAX5934A are guaranteed to be safe from damage with supply voltages 85V. Spikes at voltages above 85V may damage the part. Instantaneous short-circuit conditions, can cause large M1 ...
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... Connect a resistive divider from V possible to ON and have short traces from V GND. To decrease induced noise connect a 0.1µF capacitor between ON and GND (see Figure 10). The external MOSFET must be thermally coupled to the MAX5934/MAX5934A to ensure proper thermal shut- down operation. . SENSE IRF530 SENSE ...
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... 1kΩ 10Ω 10nF SENSE GATE OUT 10 4 FB1 TIMER MAX5934 MAX5934A 1 6 LATCH/RETRY PWRGD1 5 PWRGD2 3 7 POL_SEL PWRGD3 FB2 GND 8 TRANSISTOR COUNT: 1573 PROCESS: BiCMOS Typical Application Circuit M1 IRF530 59kΩ ...
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Positive High-Voltage, Hot-Swap Controllers with Selectable Fault Management and Status Polarity (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) Maxim cannot assume responsibility for use ...