LM2715MT-ADJ/NOPB National Semiconductor, LM2715MT-ADJ/NOPB Datasheet
LM2715MT-ADJ/NOPB
Specifications of LM2715MT-ADJ/NOPB
*LM2715MT-ADJ/NOPB
LM2715MT-ADJ
Related parts for LM2715MT-ADJ/NOPB
LM2715MT-ADJ/NOPB Summary of contents
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... The LM2715 contains a Vcom amplifier and a Gamma buffer capable of supplying 50mA source and sink. The TSSOP-16 or LLP-24 packages ensure a low profile overall solution. Typical Application Circuit © 2006 National Semiconductor Corporation Features n 1.3A, 0.18Ω, internal power switch n V operating range: 2.2V to 12V ...
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Connection Diagrams Pin Description (TSSOP) Pin Name 1 Vcom+ 2 Vcom− 3 Vcom 4 AGND 5 Delay PGND www.national.com Top View TSSOP 16 package = 125˚C, θ 120˚C/W (Note 1) JMAX JA ...
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Pin Description (TSSOP) Pin Name 9 SW NMOS power switch input Main power input, step-up and switch circuitry SWI PMOS switch input. 12 SWO PMOS switch output. 13 SWC PMOS switch control pin Analog ...
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... The capacitor should con- nect between V and PGND. IN SWI: PMOS switch input. Source connection of PMOS de- vice. SWO: PMOS switch output. Drain connection of PMOS device. Ordering Information (TSSOP) Order Number LM2715MT-ADJ LM2715MTX-ADJ Ordering Information (LLP) Order Number Spec LM2715SQ-ADJ LM2715SQX-ADJ LM2715SQ-ADJ NOPB LM2715SQX-ADJ NOPB www.national.com SWC: PMOS switch control pin ...
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Block Diagrams 20058451 20058457 5 20058403 www.national.com ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications Voltage FB Voltage V Voltage C SWC Voltage Supply Voltage Amplifier/Buffer Input Voltage Amplifier/Buffer Output Voltage Delay Electrical Characteristics — Switching Regulator Specifications in standard type face are for T ture Range ( T = − ...
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Electrical Characteristics — Vcom Amplifier Specifications in standard type face are for T ture Range ( T = −40˚C to +125˚C). Unless otherwise specified 1nF. GAMMA Vcom Amplifier Symbol Parameter V Input Offset Voltage (Note 9) ...
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Electrical Characteristics — Gamma Buffer Specifications in standard type face are for T ture Range ( T = −40˚C to +125˚C). Unless otherwise specified 1nF. GAMMA Gamma Buffer Symbol Parameter Is+ Supply Current (Amplifier + Buffer) ...
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Typical Performance Characteristics Efficiency vs. Load Current (V = 8V) OUT Frequency vs Power Switch Current Limit vs. V Efficiency vs. Load Current 20058426 Power Switch Current Limit vs. Temperature 20058425 IN 20058422 10V) OUT ...
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Typical Performance Characteristics I vs (not switching) Feedback Current vs. Temperature PMOS R vs. SWI Voltage DSON www.national.com (Continued) 20058421 Delay Current vs. V 20058463 SWI Current vs. SWI Voltage 20058466 ...
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Typical Performance Characteristics SWI Current vs. SWI Voltage (PMOS OFF) Load Transient Response V = 10V 2.5V OUT IN 1) Load, 100mA to 300mA to 100mA 500mA/div 200mV/div, AC ...
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Typical Performance Characteristics Internal Soft Start and PMOS Delay 2.5V 32Ω OUT IN LOAD C = 100nF 10k\1.5k, SWI = 30V, SWC = 2V/div, DC ...
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Typical Performance Characteristics Input Bias Current vs. Common Mode Voltage (Gamma) Output Voltage vs. Output Current (Vcom or Gamma, sourcing) Large Signal Step Response (Continued) Output Voltage vs. Output Current (Vcom or Gamma, sinking) 20058479 Supply Current vs. Common Mode ...
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Typical Performance Characteristics Positive Slew Rate vs. Capacitive Load (Vcom or Gamma) Unity Gain Frequency vs. Capacitive Load (Vcom) PSRR vs. Frequency (Vcom) www.national.com (Continued) Phase Margin vs. Capacitive Load 20058485 CMRR vs. Frequency 20058493 20058489 14 (Vcom) 20058492 (Vcom) ...
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Operation FIGURE 1. Simplified Boost Converter Diagram (a) First Cycle of Operation (b) Second Cycle Of Operation CONTINUOUS CONDUCTION MODE The LM2715 is a TFT Panel Module containing a current- mode, PWM boost regulator. A boost regulator steps the input ...
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Operation (Continued) INTRODUCTION TO COMPENSATION FIGURE 2. (a) Inductor current. (b) Diode current. The LM2715 contains a current mode PWM boost converter. The signal flow of this control scheme has two feedback loops, one that senses switch current and one ...
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Operation (Continued) exceed the switch current limit. Using Schottky diodes with lower forward voltage drop will decrease power dissipation and increase efficiency. DC GAIN AND OPEN-LOOP GAIN Since the control stage of the converter forms a complete feedback loop with ...
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Operation (Continued) HIGH OUTPUT CAPACITOR ESR COMPENSATION When using an output capacitor with a high ESR value, or just to improve the overall phase margin of the control loop, another pole may be introduced to cancel the zero created by ...
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Operation (Continued) FIGURE 3. Multi-Layer Layout 20058453 FIGURE 4. Single Layer Layout 19 20058452 www.national.com ...
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Application Information www.national.com FIGURE 5. Li-Ion to 10V TFT Application FIGURE 6. Li-Ion to 12V TFT Application 20 20058472 20058491 ...
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Physical Dimensions inches (millimeters) unless otherwise noted For Ordering, Refer to Ordering Information Table For Ordering, Refer to Ordering Information Table TSSOP-16 Pin Package (MTC) NS Package Number MTC16 LLP-24 Pin Package (SQ) NS Package Number SQA24B 21 www.national.com ...
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