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LM25066PSQE データシート(PDF) 3 Page - Texas Instruments |
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LM25066PSQE データシート(HTML) 3 Page - Texas Instruments |
3 / 63 page 5x4 mm WQFN 24L 1 24 OUT PGD TIMER VAUX SCL SMBA VREF DIODE PWR RETRY Exposed Pad LM25066 www.ti.com SNVS654J – FEBRUARY 2010 – REVISED DECEMBER 2015 5 Description (continued) The LM25066 monitoring block computes both the real-time and average values of subsystem operating parameters (VIN, IIN, PIN, VOUT) as well as the peak power. Accurate power averaging is accomplished by averaging the product of the input voltage and current. A black box (Telemetry/Fault Snapshot) function captures and stores telemetry data and device status in the event of a warning or a fault. 6 Pin Configuration and Functions NHZ Package 24-Pin WQFN Top View NOTE: Solder exposed pad to ground. Pin Functions PIN TYPE DESCRIPTION NO. NAME 3 - state address line. Should be left floating, or else direct connection (either trace or 0- Ω 1 ADR2 SMBUS address line 2 resistor) to VDD or GND. 3 - state address line. Should be left floating, or else direct connection (either trace or 0- Ω 2 ADR1 SMBUS address line 1 resistor) to VDD or GND. 3 - state address line. Should be left floating, or else direct connection (either trace or 0- Ω 3 ADR0 SMBUS address line 0 resistor) to VDD or GND. Internal sub-regulator Internally sub-regulated 4.5 V bias supply. Connect a 1 µF capacitor on this pin to ground 4 VDD output for bypassing. Connect this pin to GND to set the nominal overcurrent threshold at 25 mV. Connecting 5 CL Current limit range CL to VDD will set the overcurrent threshold to be 46 mV. This pin sets the circuit breaker protection point in relation to the overcurrent trip point. When connected to GND, this pin will set the circuit breaker point to be 1.8 times the 6 CB Circuit breaker range overcurrent threshold. Connecting this pin to VDD sets the circuit breaker trip point to be 3.6 times the overcurrent threshold. An external resistor divider from OUT sets the output voltage at which the PGD pin 7 FB POWER GOOD feedback switches. The threshold at the pin is 1.167 V. An internal 24 µA current source provides hysteresis. This pin configures the power up fault retry behavior. When this pin is grounded, the 8 RETRY Fault retry input device will continually try to engage power during a fault. If the pin is connected to VDD, the device will latch off during a fault. Copyright © 2010–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM25066 |
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同様の説明 - LM25066PSQE |
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