max5929aleegt Maxim Integrated Products, Inc., max5929aleegt Datasheet
max5929aleegt
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max5929aleegt Summary of contents
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Rev 3; 3/04 General Description The MAX5927/MAX5929 +1V to +13.2V quad hot-swap controllers provide complete protection for multisupply systems. They allow the safe insertion and removal of cir- cuit cards into live backplanes. These devices hot swap multiple supplies ...
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Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND, unless otherwise noted.) IN_ ..........................................................................-0.3V to +14V GATE_.............................................................-0.3V to (IN_ + 6V) BIAS (Note 1) .............................................. (V ON_, STAT_, LIM_ (MAX5927), TIM, MODE, LATCH (MAX5927), POL (MAX5927) ...
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ELECTRICAL CHARACTERISTICS (continued +1V to +13.2V provided at least one supply is larger than or equal to +2.7V and only one supply is > +11.0V, T IN_ +85°C, unless otherwise noted. Typical values are ...
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Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers ELECTRICAL CHARACTERISTICS (continued +1V to +13.2V provided at least one supply is larger than or equal to +2.7V and only one supply is > +11.0V, T IN_ +85°C, unless otherwise noted. Typical values ...
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Operating Circuits Fairchild FDB7090L, V +25°C, unless otherwise noted. Channels 1 through 4 are identical in performance. Where characteristics are interchangeable, channels 1 through 4 are referred ...
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Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers (Typical Operating Circuits Fairchild FDB7090L, V +25°C, unless otherwise noted. Channels 1 through 4 are identical in performance. Where characteristics are interchangeable, channels 1 through 4 are ...
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Operating Circuits Fairchild FDB7090L, V +25°C, unless otherwise noted. Channels 1 through 4 are identical in performance. Where characteristics are interchangeable, channels 1 through 4 are referred ...
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Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers PIN NAME MAX5927 MAX5929 1 4 IN1 2 5 SENSE1 3 6 GATE1 4 — LIM4 5 7 IN4 6 8 SENSE4 7 9 GATE4 8 10 STAT1 9 11 STAT2 10 12 TIM 11, ...
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PIN NAME MAX5927 MAX5929 21 — LIM3 22 20 GATE2 23 21 SENSE2 24 22 IN2 25 — LIM2 26 23 ON4 27 24 ON3 28 1 MODE 29 — POL 30 2 ON2 31 3 ON1 32 — LIM1 ...
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Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers R LIM1 LIM1* IN1 V V SC SENSE1 FAST COMP. SENSE1 SLOW COMP. GATE1 CHARGE Q1 PUMP OUT1 SLOW DISCHARGE FAST DISCHARGE 3mA/ 50mA 100µA STAT1 LIM3* R LIM3 IN3 V ...
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ON1 ON2 ON3 ON4 ANY IN_ IN2 IN3 IN4 *THE OUT_ DISCHARGE RATE IS A RESULT OF NATURAL DECAY OF THE LOAD RESISTANCE AND CAPACITANCE. Figure 2. Voltage-Tracking Timing Diagram (Provided t ______________________________________________________________________________________ Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers OUT1* OUT2* ...
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Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers ON1 ON2 ON3 ON4 ANY IN_ IN2 IN3 IN4 OUT1 OUT2 OUT3 OUT4 *THE OUT_ DISCHARGE RATE IS A RESULT OF NATURAL DECAY OF THE LOAD RESISTANCE AND CAPACITANCE. Figure 3. Power-Sequencing Timing Diagram (Provided ...
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ON1 = ON2 = ON3 = ON4 OVERCURRENT FAULT CONDITION OUT1 OUT2 OUT3 OUT4 *THE OUT_ DISCHARGE RATE IS A RESULT OF NATURAL DECAY OF THE LOAD RESISTANCE AND CAPACITANCE. Figure 4. Power-Sequencing Fault Turn-Off The MAX5927/MAX5929 turn off all ...
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Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers ON1 ON2 ON3 ON4 IN1 IN2 IN3 IN4 t D, UVLO OUT1 OUT2 OUT3 OUT4 * THE OUT_ DISCHARGE RATE IS A RESULT OF NATURAL DECAY OF THE LOAD RESISTANCE AND CAPACITANCE. Figure 5. Independent ...
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ON_ STAT_ t START GATE_ V OUT_ V FC,TH R SENSE_ I LOAD_ t ON Figure 6. Independent Mode Startup Waveforms Slow-Comparator Startup Period The slow comparator is disabled during the startup period while the external MOSFETs ...
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Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers Table 2. Selecting Fault Management Mode (MAX5927) LATCH FAULT MANAGEMENT Floating Fault condition latches MOSFETs off Low Autoretry mode Table 3. Selecting STAT_ Polarity (MAX5927) POL Low Asserts low Floating Asserts high (open drain) age. ...
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Table 4. Status Output Truth Table: Voltage-Tracking and Power-Sequencing Modes CHANNEL 1 PART FAULT Yes X MAX5927 (POL = 1), X MAX5929_H X No Yes X MAX5927 (POL = 0), X MAX5929_L Low High. ...
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Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers Table 6. Recommended N-Channel MOSFETs PART NUMBER IRF7413 IRF7401 IRL3502S MMSF3300 MMSF5N02H MTB60N05H FDS6670A ND8426A FDB8030L Table 7. Component Manufacturers COMPONENT MANUFACTURER Dale-Vishay Sense Resistors IRC International Rectifier MOSFETs Fairchild Motorola The slow-comparator threshold voltage ...
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R SENSE_ V IN_ R PULLUP IN_ SENSE_ MAX5927 STAT_ MAX5929 ON_ GND Figure 9. Operating with an External Gate Capacitor Startup Sequence There are two ways of completing the startup sequence. Case A describes a startup sequence that slowly ...
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Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers OFF GND V Z Figure 11. Power Sequencing: Channel Z Turns On t With a 22nF gate capacitor, the inrush current, charge, and discharge times are µ I ...
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The maximum inrush current in this case is INRUSH R SENSE Figure 6 shows the waveforms and timing diagrams for a startup transient with current regulation (see the Typical Operating Characteristics). When operating under ...
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Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers Layout Considerations To take full tracking advantage of the switch response time to an output fault condition important to keep all traces as short as possible and to maximize the high-cur- rent trace ...
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PART MAX5927ETJ Programmable MAX5929LHEEG Fixed MAX5929LLEEG Fixed MAX5929AHEEG Fixed MAX5929ALEEG Fixed Pin Configurations (continued) TOP VIEW MODE 1 ON2 2 ON1 3 IN1 4 MAX5929 SENSE1 5 GATE1 6 IN4 7 SENSE4 8 GATE4 9 STAT1 10 STAT2 11 TIM ...
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Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) D PIN # 1 I.D. C PKG. 16L 5x5 SYMBOL MIN. NOM. ...
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For the latest package outline information www.maxim-ic.com/packages.) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim ...