SG143Operational Amplifier - High Voltage - Op Amp, 4V to 40V Supply - -55°C to 125°C | Linear | 3 | Active | The SG143 is a general-purpose high-voltage operational amplifier featuring operation to ±40 V and overvoltage protection up to ±40 V. Increased slew rate, together with higher common-mode and supply rejection, insure improved performance at high supply voltages. Operating characteristics are independent of supply voltage and temperature. These devices are intended for use in high voltage applications where common-mode input ranges, high output voltage swings, and low input currents are required. Also, they are internally compensated and are pin compatible with industry standard operational amplifiers.
**Microchip Ordering Part** [**Standard Microcircuit Drawing (SMD)**](https://ww1.microchip.com/downloads/en/DeviceDoc/00003952.pdf)
SG143T-DESC Cross Reference 7800303XA
SG143T-DESC Cross Reference 7800303XX
SG143Y-DESC Cross Reference 7800303PA
SG143Y-DESC Cross Reference 7800303PX |
SG1503Voltage Reference Precision 2.5V-55°Cto125°C | Integrated Circuits (ICs) | 5 | Active | The SG1503 is a monolithic integrated circuit implementing a self-contained precision voltage reference generator. It is internally trimmed for ±1% accuracy and requires less than 2mA quiescent current. SG1503 can deliver greater than 10mA output current while achieving total load and line induced tolerances of less than 0.5%. In addition to voltage accuracy, internal trimming achieves a temperature coefficient of output voltage of typically 10 ppm/°C. As a result, these references are excellent choices for applications in critical instrumentation and D-to-A converter systems. The SG1503 is specified for operation over the full military ambient temperature range of -55°C to 125°C, while the SG2503 is designed for -25°C to 85°C and the SG3503 for commercial applications of 0°C to 70°C.
**Microchip Ordering Part** [**Standard Microcircuit Drawing (SMD)**](https://ww1.microchip.com/downloads/en/DeviceDoc/00003952.pdf)****
SG1503T-DESC Cross Reference 5962-8686101YA
SG1503T-DESC Cross Reference 5962-8686101YX
SG1503Y-DESC Cross Reference 5962-8686101PA
SG1503Y-DESC Cross Reference 5962-8686101PX |
SG1524BPWM Controller Voltage Mode +/-1% Ref - pulse width modulator 55 °C to 125 °C | Integrated Circuits (ICs) | 4 | Active | The SG1524B is a pulse width modulator for switching power supplies that features improved performance over industry standards like the SG1524. A direct pin-for-pin replacement for the earlier device, it combines advanced processing techniques and circuit design to provide improved reference accuracy, and extended common mode range at the error amplifier and current limit inputs. A DC-coupled flip-flop eliminates triggering and glitch problems, and a PWM data latch prevents edge oscillations. The circuit incorporates true digital shutdown for high speed response, while an under voltage lockout circuit prevents spurious outputs when the supply voltage is too low for stable operation. Full double-pulse suppression logic insures alternating output pulses when the Shutdown pin is used for pulse-by-pulse current limiting. The SG1524B is specified for operation over the full military ambient temperature range of -55°C to 125°C. The SG2524B is characterized for the industrial range of -25°C to 85°C, and the SG3524B is designed for the commercial range of 0°C to 70°C.
5962-8764501EA
SG1524BJ-DESC |
SG1525AVoltage Mode PWMs Dual Sink/Source Outputs - 100Hz to 500KHz oscillator range | DC DC Switching Controllers | 4 | Active | The SG1525A/1527A series of pulse width modulator integrated circuit s are designed to offer improved performance and lower external parts count when used to implement all types of switching power supplies. The on-chip +5.1 V reference is trimmed to ±1% initial accuracy and the input common-mode range of the error amplifier includes the reference voltage, eliminating external potentiometers and divider resistors. A Sync input to the oscillator allows multiple units to be slaved together, or a single unit to be synchronized to an external system clock. A single resistor between the CT pin and the D is charge pin provides a wide range of deadtime adjustment. These devices also feature built-in soft-start circuitry with only a timing capacitor required externally. A Shutdown pin controls both the soft -start circuitry and the output stages, providing instantaneous turn-off with soft-start recycle for slow turn-on. These functions are also controlled by an under voltage lockout which keeps the outputs o ff and the soft-start capacitor discharged for input voltages less than that required for normal operation. Another unique feature of these PWM circuits is a latch following the comparator. Once a PWM pulse has been terminated for any reason, the outputs remain off for the duration of the period. The latch is reset with each clock pulse. The output stages are totem-pole designs capable of sourcing or sinking in excess of 200mA. The SG1525A output stage features NOR logic, giving a LOW output for an OFF state. The SG1527A utilizes OR logic, which results in a HIGH output level when OFF.
Microchip Ordering Part [Standard Microcircuit Drawing (SMD)](https://ww1.microchip.com/downloads/en/DeviceDoc/00003952.pdf)
SG1525AF-DESC Cross Reference 5962-8951101FA
SG1525AF-DESC Cross Reference 5962-8951101FX
SG1525AJ-DESC Cross Reference 5962-8951101EA
SG1525AJ-DESC Cross Reference 5962-8951101EX
SG1525AJ-JAN Cross Reference M38510/12602BEA
SG1525AJ-JAN Cross Reference M38510/12602BEX |
SG1526BVoltage Mode PWM, 500Khz - 8V to 35V Operation -55°C to 125°C | Power Management (PMIC) | 3 | Active | The SG1526B is a high-performance pulse width modulator for switching power supplies which offers improved functional and electrical characteristics over the industry-standard SG1526. A direct pin-for-pin replacement for the earlier device with all its features, it incorporates the following enhancements: a bandgap reference circuit for improved regulation and drift characteristics, improved under voltage lockout, lower temperature coefficients on oscillator frequency and current-sense threshold, tighter tolerance on soft start time, much faster SHUTDOWN response, improved double-pulse suppression logic for higher speed operation, and an improved output driver design with low shoot-through current, and faster rise and fall times. This versatile device can be used to implement single-ended or push-pull switching regulators of either polarity, both transformer-less and transformer-coupled. The SG1526B is specified for operation over the full military ambient temperature range of -55°C to 150°C. The SG2526B is characterized for the industrial range of -25°C to 150°C, and the SG3526B is designed for the commercial range of 0°C to 125°C.
Microchip Ordering Part [Standard Microcircuit Drawing (SMD)](https://ww1.microchip.com/downloads/en/DeviceDoc/00003952.pdf)
SG1526BJ-DESC Cross Reference 8551501VA
SG1526BJ-DESC Cross Reference 8551501VX
SG1526BJ-JAN Cross Reference M38510/12603BVA
SG1526BJ-JAN Cross Reference M38510/12603BVX |
SG1527AVoltage Mode PWMs - Voltage Mode PWM, InvertedOutput from SG1525A - | Power Management (PMIC) | 2 | Active | Pulse width modulator integrated circuit s are designed to offer improved performance and lower external parts count when used to implement all types of switching power supplies.
Microchip Ordering Part [Standard Microcircuit Drawing (SMD)](https://ww1.microchip.com/downloads/en/DeviceDoc/00003952.pdf)
SG1527AJ-DESC Cross Reference 5962-8951102EA
SG1527AJ-DESC Cross Reference 5962-8951102EX
SG1527AJ-JAN Cross Reference M38510/12604BEA
SG1527AJ-JAN Cross Reference M38510/12604BEX |
SG1532Positive Adjustable Linear Voltage Regulator Precision Regulator/Controller Adj | Power Management (PMIC) | 2 | Active | The SG1532 series have input voltages as low as 4.5 V and as high as 50 V, a low noise, low voltage reference temperature compensated, low threshold current limiting and protective circuits which include thermal shutdown and independent current limiting of both the reference and output voltages. A separate remote shutdown terminal is included. In the dual-in-line package an open collector output is available for low input-output differential applications.
These devices are available in a hermetic 14-pin CERDIP. The SG1532 is rated for operation over the ambient temperature range of -55°C to 125°C.
Microchip Ordering Part [Standard Microcircuit Drawing (SMD)](https://ww1.microchip.com/downloads/en/DeviceDoc/00003952.pdf)
SG1532J-DESC Cross Reference 5962-8777001CA
SG1532J-DESC Cross Reference 5962-8777001CX
SG1532T-DESC Cross Reference 5962-8777001IA
SG1532T-DESC Cross Reference 5962-8777001IX |
SG1536Operational Amplifier - High Voltage- Op Amp, Low Offset, High Voltage | Instrumentation, Op Amps, Buffer Amps | 1 | Active | The SG1536 series of monolithic amplifiers is designed specifically for use in high voltage applications up to ±40 V and where high common-mode input ranges, high output voltage swings, and low input currents are required. These devices are internally compensated and are pin compatible with industry standard operational amplifiers.
Microchip Ordering Part [Standard Microcircuit Drawing (SMD)](https://ww1.microchip.com/downloads/en/DeviceDoc/00003952.pdf)
SG1536T-DESC Cross Reference 7800304XA
SG1536T-DESC Cross Reference 7800304XX
SG1536Y-DESC Cross Reference 7800304PA
SG1536Y-DESC Cross Reference 7800304PX |
SG1543Precision Output Supervisory Circuit Voltage to 1% Accuracy -55°C to 125°C | Power Management (PMIC) | 3 | Active | This monolithic integrated circuit contains all the functions necessary to monitor and control the output of a sophisticated power supply system. Over-voltage (O.V.) sensing with provision to trigger an external SCR "crowbar" shutdown; an under-voltage (U.V.) circuit which can be used to monitor either the output or to sample the input line voltage; and a third op amp/comparator usable for current sensing (C.L.) are all included in this IC, together with an independent, accurate reference generator. Both over and under-voltage sensing circuits can be externally programmed for minimum time duration of fault before triggering. All functions contain open collector outputs which can be used independently or wire-ORed together; and although the SCR trigger is directly connected only to the over-voltage sensing circuit, it may be optionally activated by any of the other outputs, or from an external signal. The O.V. circuit also includes an optional latch and external reset capability. The current sense circuit may be used with external compensation as a linear amplifier or as a high gain comparator. Although nominally set for zero input offset, a fixed threshold may be added with an external resistor. Instead of current limiting, this circuit may also be used as an additional voltage monitor. The reference generator circuit is internally trimmed to eliminate the need for external potentiometers and the entire circuit may be powered directly from either the output being monitored or from a separate bias voltage.
Microchip Ordering Part [Standard Microcircuit Drawing (SMD)](https://ww1.microchip.com/downloads/en/DeviceDoc/00003952.pdf)
SG1543J-DESC Cross Reference 5962-8774001EA
SG1543J-DESC Cross Reference 5962-8774001EX |
SG1544Precision Output Supervisory Circuit Single Supply Monitors - Low Voltage Option | Power Management (PMIC) | 1 | Active | This device was designed to provide all the operational features of the SG1543 device with the added advantage of uncommitted inputs to the voltage sensing comparators. This allows monitoring of voltage levels less than 2.5 volts by dividing down the internal reference supply. In all other respects, the SG1544 series is identical to the SG1543 series. These monolithic devices contain all the functions necessary to monitor and control the output of a sophisticated power supply system. Over-voltage sensing with provision to trigger an external SCR "crowbar" shutdown; an under-voltage circuit which can be used to monitor either the output or sample the input line voltage; and a third op-amp/comparator usable for current sensing are all included in this IC, together with an independent, accurate reference generator. The voltage-sensing input comparators are identical and can be used with threshold levels from zero volts to VIN (3V). Each has approximately 25mV of hysteresis which is offset so the switching differential threshold is zero on the non-inverting input for rising levels and zero on the inverting input for falling signals. All other operating characteristics are as described in the SG1543 data sheet and application note.
**Microchip Ordering Part** [**Standard Microcircuit Drawing (SMD)**](https://ww1.microchip.com/downloads/en/DeviceDoc/00003952.pdf)
SG1544J-DESC Cross Reference 5962-8774002VA
SG1544J-DESC Cross Reference 5962-8774002VX |
