MAX5978ETJ+ Maxim Integrated Products, MAX5978ETJ+ Datasheet
MAX5978ETJ+
Specifications of MAX5978ETJ+
Related parts for MAX5978ETJ+
MAX5978ETJ+ Summary of contents
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... The device is available in a 32-pin thin QFN-EP pack- age and operates over the -40NC to +85NC extended temperature range. Ordering Information PART TEMP RANGE MAX5978ETJ+ -40NC to +85NC +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. _______________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’ ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers ABSOLUTE MAXIMUM RATINGS IN, SENSE, MON, GATE to AGND ...................... -0.3V to +30V LED_ to AGND .....................................................-0.3V to +16V PG, ON, ALERT, FAULT, SDA, SCL to ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers ELECTRICAL CHARACTERISTICS (continued 2.7V to 16V -40NC to +85NC, unless otherwise noted. Typical values are PARAMETER SYMBOL Current ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers ELECTRICAL CHARACTERISTICS (continued 2.7V to 16V -40NC to +85NC, unless otherwise noted. Typical values are PARAMETER SYMBOL A1, ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers ELECTRICAL CHARACTERISTICS (continued 2.7V to 16V -40NC to +85NC, unless otherwise noted. Typical values are PARAMETER SYMBOL MON ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers (V = 3.3V +25NC, unless otherwise noted SUPPLY CURRENT vs. SUPPLY VOLTAGE 2.50 2.45 HOT-SWAP CHANNEL ON 2.40 2.35 HOT-SWAP CHANNEL OFF ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers (V = 3.3V +25NC, unless otherwise noted STARTUP WAVEFORM 10ms/div TURN-OFF WAVEFORM (FAST-COMPARATOR FAULT/SHORT-CIRCUIT RESPONSE) I LOAD 5A/div V GATE 10V/div V ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers (V = 3.3V +25NC, unless otherwise noted CURRENT ADC ACCURACY vs SENSE MON ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers TOP VIEW DGND PIN NAME Three-State Current-Sense Range Selection Input. Set the circuit-breaker threshold range by 1 IRNG connecting to DGND, DREG, or leave unconnected. Power-Supply ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers PIN NAME Polarity Select Input. Connect POL to DREG for an active-high power-good (PG) output, or con- 15 POL nect POL to GND for active-low PG ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers GATE Q1 SENSE SENSE LED2 LED1 TO MON LOAD LED1 LED2 GND Typical Operating ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers MAX5978 FROM CONFIGURATION ATTENUATOR REGISTERS IRNG DAC SELECT REF SENSE CS AMP MON CHARGE VOLTAGE PUMP SCALING 2MHz 5 µ A OSCILLATOR GATE GATE PULLDOWN GND ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Detailed Description The MAX5978 includes a set of registers that are 2 accessed through the I C interface. Some of the reg- isters are read only ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Table 1b. Register Address Map (General) REGISTER NAME mon_range MON input range setting cbuf_chx_store Selective enabling of circular buffer ifast2slow Current threshold fast-to-slow ratio setting status0 ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Table 3a. Register Function REGISTER BIT RANGE ADDRESS ON input state above 600mV channel enable threshold [1: below 600mV channel ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers ON EN1 BIT EN2 BIT ANALOG SLOW TRIP ANALOG FAST TRIP UV/OV CRITICAL PROT Figure 1. Channel On-Off Control Logic Functional Schematic duration t . Refer ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Table 4a. ifast2slow Register Format Description: Current threshold fast-to-slow setting bits Resister Title: ifast2slow Register Address: 0x30 — — — Bit 7 Bit ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Table 5. Specified Current-Sense and Circuit-Breaker Threshold Ranges DAC OUTPUT RANGE IRNG (DEFAULT = FULL INPUT SCALE) (mV) Low High ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers YES V > 2. CONTINUOUSLY SAMPLE VOLTAGE AND CURRENT, UPDATE MIN-MAX VALUES, 2 HANDLE I C COMMUNICATIONS, STORE SAMPLES TO CIRCULAR BUFFERS... YES CIRCUIT-BREAKER ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Digital Current Monitoring The current-sense signal is sampled by the internal 10-bit, 10ksps ADC, and the most recent results are stored in registers for retrieval through ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Minimum and Maximum Value Detection for Current-Measurement Values Current-sense measurement values from the ADC are continuously compared with the contents of minimum- and maximum-value registers, and ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Digital Voltage Monitoring and Power-Good The voltage at the load (MON input) is sampled by the internal ADC. The MON full-scale voltage can be set to ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers device can also deassert the PG output or turn off the external MOSFET when the voltage is outside the critical limits (see Figure 3). Table 28 ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Table 22. Undervoltage Critical Threshold Register Format (High-Order Bits) Description: Undervoltage critical threshold high-order bits [9:2] Register Title: uv2th_msb Register Addresses: 0x1C R/W R/W R/W uv2_9 ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Table 27. Overvoltage Critical Threshold Register Format (Low-Order Bits) Description: Overvoltage critical threshold low-order bits [1:0] Register Title: ov2thr_lsb Register Addresses: 0x21 — ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Minimum and Maximum Value Detection for Voltage-Measurement Values All voltage-measurement values are compared with the contents of minimum- and maximum-value registers, and if the most recent ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Using the Voltage and Current Peak- Detection Registers The voltage and current minimum- and maximum-value records in register locations 0x08 through 0x17 can be reset by ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Table 37. OI Warning Comparators Deglitch Enable Register Format Description: Deglitch enable register for overcurrent warning digital comparators Register Title: dgl_i Register Address: 0x3C R R ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers The contents of a buffer can be retrieved as a block read of either fifty 10-bit values (spanning 2 bytes each high-order bytes, ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Table 43. Circular Buffer Stop-Delay Register Format Circular buffer stop delay: any integer number between 0 and 50 samples that are to be recorded to a ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Fault Dependency If a fault event occurs (digital UV warning/critical, digital OV warning/critical, or digital overcurrent warning), the fault is logged by setting a corresponding bit ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers When an overcurrent event (fast trip or slow trip) causes the device to shut down the hot-swap channel, an open- drain FAULT output is asserted low. ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Table 52. LED State Register Description: LED state register Register Title: LED_state Register Address: 0x45 — — — Bit 7 Bit 6 Bit ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Table 53. Device Slave Address Settings ADDRESS INPUT STATE A1 A0 ADDR 7 ADDR 6 Low Low 0 Low High 0 Low Open 0 High Low ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers SEND BYTE FORMAT S ADDRESS WR ACK DATA ACK 7 BITS 0 8 BITS SLAVE ADDRESS– DATA BYTE–PRESETS THE EQUIVALENT TO CHIP- INTERNAL ADDRESS POINTER. SELECT ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers The acknowledge bit (ACK) is the 9th bit attached to any 8-bit data word. The receiving device always generates an ACK. The device generates an ACK ...
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Hot-Swap Controller with 10-Bit Current, Voltage Monitor, and 4 LED Drivers Table 54. Circular Buffer Readout Sequence READ-OUT ORDER 1ST OUT Chronological Number 1 The slave generates a NACK at step 5 if the command code is ...
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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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 38 2010 Maxim Integrated Products © ...