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LMZ14201 Scheda tecnica(PDF) 3 Page - Texas Instruments |
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LMZ14201 Scheda tecnica(HTML) 3 Page - Texas Instruments |
3 / 29 page Exposed Pad Connect to GND 5 SS 6 FB 3 EN 1 VIN 2 RON 4 GND 7 VOUT LMZ14201 www.ti.com SNVS649I – JANUARY 2010 – REVISED OCTOBER 2015 5 Pin Configuration and Functions NDW Package 7-Pin TO-PMOD Top View Pin Functions PIN TYPE DESCRIPTION NO. NAME 1 VIN Power Supply input — Nominal operating range is 6 V to 42 V . A small amount of internal capacitance is contained within the package assembly. Additional external input capacitance is required between this pin and exposed pad. 2 RON Analog On Time Resistor — An external resistor from VIN to this pin sets the ON-time of the application. Typical values range from 25 k Ω to 124 kΩ. 3 EN Analog Enable — Input to the precision enable comparator. Rising threshold is 1.18 V nominal; 90 mV hysteresis nominal. Maximum recommended input level is 6.5 V. 4 GND Ground Ground — Reference point for all stated voltages. Must be externally connected to EP. 5 SS Analog Soft-Start — An internal 8-µA current source charges an external capacitor to produce the soft-start function. This node is discharged at 200 µA during disable, overcurrent, thermal shutdown and internal UVLO conditions. 6 FB Analog Feedback — Internally connected to the regulation, overvoltage, and short-circuit comparators. The regulation reference point is 0.8 V at this input pin. Connected the feedback resistor divider between the output and ground to set the output voltage. 7 VOUT Power Output Voltage — Output from the internal inductor. Connect the output capacitor between this pin and exposed pad. — EP Ground Exposed Pad — Internally connected to pin 4. Used to dissipate heat from the package during operation. Must be electrically connected to pin 4 external to the package. 6 Specifications 6.1 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) (2) (3) MIN MAX UNIT VIN, RON to GND –0.3 43.5 V EN, FB, SS to GND –0.3 7 V Junction Temperature 150 °C Storage Temperature –65 150 °C (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and specifications. (3) For soldering specifications, see product folder at www.ti.com and SNOA549. 6.2 ESD Ratings VALUE UNIT V(ESD) Electrostatic discharge Human body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±2000 V (1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. Copyright © 2010–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LMZ14201 |
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