SG2526N Microsemi Analog Mixed Signal Group, SG2526N Datasheet
SG2526N
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SG2526NR
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SG2526N Summary of contents
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DESCRIPTION The SG1526 is a high performance monolithic pulse width modulator circuit designed for fixed-frequency switching regulators and other power control applications. Included in an 18-pin dual-in-line package are a temperature compensated voltage reference, sawtooth oscillator, error amplifier, pulse width ...
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ABSOLUTE MAXIMUM RATINGS Input Voltage (V ) ............................................................... IN Collector Supply Voltage (V ) ............................................. C Logic Inputs ......................................................... Analog Inputs .......................................................... Source/Sink Load Current (each output) ....................... Reference Load Current .................................................. Note 1. Exceeding these ratings could cause damage ...
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ELECTRICAL CHARACTERISTICS Parameter Oscillator Section (Note 4) Initial Accuracy Voltage Stability Temperature Stability (Note 9) Minimum Frequency (Note 9) Maximum Frequency Sawtooth Peak Voltage Sawtooth Valley Voltage Error Amplifier Section (Note 5) Input Offset Voltage Input Bias Current Input Offset ...
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CHARACTERISTIC CURVES FIGURE 1. REFERENCE VOLTAGE VS. SUPPLY VOLTAGE FIGURE 4. REFERENCE RIPPLE REJECTION FIGURE 7. OSCILLATOR PERIOD VS. R AND Rev 1.1a Copyright 1994 FIGURE 2. REFERENCE TEMPERATURE STABILITY FIGURE 5. OSCILLATOR FREQUENCY TEMPERATURE STABILITY 4 ...
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CHARACTERISTIC CURVES (continued) FIGURE 8. UNDERVOLTAGE LOCKOUT CHARACTERISTIC FIGURE 11. CURRENT LIMIT TRANSFER FUNCTION FIGURE 14. OUTPUT DRIVER SATURATION VOLTAGE VS. I Rev 1.1a Copyright 1994 FIGURE 9. ERROR AMPLIFIER OPEN LOOP GAIN VS. FREQUENCY FIGURE 12. COMPARATOR INPUT TO ...
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APPLICATION INFORMATION VOLTAGE REFERENCE The reference regulator of the SG1526 is based on a temperature compensated zener diode. The circuitry is fully active at supply voltages above +8 volts., and provides up to 20mA of load current to external circuitry ...
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APPLICATION INFORMATION OSCILLATOR The oscillator is programmed for frequency and deadtime with three components: R generated: a sawtooth waveform at pin 10 for pulse width modulation, and a logic clock at pin 12. The following procedure is recommended for choosing ...
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APPLICATION INFORMATION OUTPUT DRIVERS The totem-pole output drivers of the SG1526 are designed to source and sink 100mA continuously and 200mA peak. Loads can be driven either from the output pins 13 and 16, or from the +V outputs as ...
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... CONNECTION DIAGRAMS & ORDERING INFORMATION Package Part No. 18-PIN CERAMIC DIP SG1526J/883B J - PACKAGE SG1526J SG2526J SG3526J 18-PIN PLASTIC DIP SG2526N N - PACKAGE SG3526N N Package: RoHS Compliant / Pb-free Transition DC: 0503 18-PIN WIDE BODY SG2526DW PLASTIC S.O.I.C. SG3526DW DW - PACKAGE DW Package: RoHS Compliant / Pb-free Transition DC: 0516 ...