ZETEX Manuals

This design note introduces a push-pull inverter for backlighting LCD displays. It has the following features: compact size, high efficiency, wide operating voltage range, and adjustable contrast.

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The ZXLB1600 inductive switching boost converter accepts an input voltage of between 1.6V and 5.5V and provides an adjustable output voltage of up to 28V for LCD and OLED bias. The device contains an output switch and a second switch to isolate the coil from the input to provide true isolation in shutdown mode. The output can be adjusted by means of an externally applied dc voltage, a PWM control signal, or external feedback resistors and can supply typically 10mA of output current at maximum output voltage. Higher current is available at lower output voltages. The input voltage range accepts a number of battery solutions, including dual dry cell and single Li-Ion cells and PFM operation mode allows the output to be regulated with high efficiency under light or no load conditions. The switching frequency range permits the use of miniature surface mount inductors. A low battery comparator is provided to indicate when the input voltage has fallen to within ±2% of a preset threshold. This threshold is set internally, but can be adjusted externally to any voltage within the supply voltage range.

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This note explains some of the major problem areas in selecting devices and circuits for automobile use, and demonstrates the use of the Zetex Super E-Line range of transistors in some practical examples.

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The ZXGD3002E6 is a high-speed non-inverting single MOSFET gate driver capable of driving up to 9A into a MOSFET or IGBT gate capacitive load from supply voltages up to 20V. With typical propagation delay times down to 2ns and rise/fall times down to 11ns this device ensures rapid switching of the power MOSFET or IGBT to minimize power losses and distortion in high current fast switching applications. The ZXGD3002E6 is inherently rugged to latch-up and shoot-through, and its wide supply voltage range allows full enhancement to minimize on-losses of the power MOSFET or IGBT. Its low input voltage requirement and high current gain allows high current driving from low voltage controller ICs, and the optimized pin-out SOT23-6 package with separate source and sink pins eases board layout, enabling reduced parasitic inductance and independent control of rise and fall slew rates.

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ZXMN10A11K 100V DPAK N-channel enhancement mode MOSFET is a low on-resistance and fast switching MOSFET, which is ideal for high efficiency power management applications.

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ZTL431 and ZTL432 are three terminal adjustable shunt regulators offering excellent temperature stability and output current handling capability up to 100mA. The output voltage may be set to any chosen voltage between 2.5 and 20 volts by selection of two external divider resistors. The devices can be used as a replacement for zener diodes in many applications requiring an improvement in zener performance.

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This document is about Zetex ZXMN2B01F 20V SOT23 N-channel enhancement mode MOSFET datasheet, introduces the features and characteristics, applications, technical specifications and other information of the device.

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ZXTN19060CFF is a 60V, SOT23F, NPN high gain power transistor. It features high gain and low saturation voltage and is suitable for applications requiring high gain and low saturation voltage.

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2N7002 is a small signal MOSFET produced by Zetex Semiconductors. It has a fast switching speed, low gate drive capability and SOT23 package, and is suitable for general switching applications.

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ZXTP25040DFL is a 40V SOT23 package PNP low power transistor. It features high peak current, low saturation voltage, 40V forward blocking voltage. This device is ideal for applications requiring high pulse currents, such as MOSFET and IGBT gate driving and low power DC-DC conversion.

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The ZXMN3A01E6 is a 30V N-channel enhancement mode MOSFET from Texas Instruments. Its features are low on-resistance, fast switching speed, low threshold voltage, low gate drive current, and it is suitable for high efficiency, low voltage, power management applications.

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ZXMN2B14FH is a low on-resistance, low gate drive capability N-channel enhancement mode MOSFET, suitable for DC-DC converters, power management functions, disconnect switches and motor control applications.

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ZXFV4089 is a low-distortion video amplifier and DC restoration circuit. It is specially designed to provide brightness level stability as a 'black-level clamp' in video systems with very low distortion and low power consumption. A high fidelity video amplifier is combined with a sample-hold switch circuit using an external coupling capacitor to provide level-shifting of the video output such that a time-gated sample of the waveform is set to be equal to an external reference voltage (usually zero voltage). A buffered TTL/CMOS logic input signal controls the switch. The gain is set externally by two resistors. In a typical application, the sample-hold circuit is gated on during part of the back-porch interval of an analog video waveform. Then the video waveform is stabilised for the remainder of the line-scan interval.

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The ZXSC440 is a dedicated photoflash charger, charging an 80μF photoflash capacitor to 300V in 3.5 seconds from a 3V supply. The flyback conversion efficiency is typically 75%, much higher than the commonly used discrete charging circuits. The Charge pin enables the circuit to be initiated from the camera's microprocessor, using negligible current when flash is not being used. The Ready pin signals the microprocessor when the flash is charged and ready to be fired. A small amount of hysteresis on the voltage feedback shuts down the device as long as the capacitor remains fully charged, again using negligible current. Applications include digital camera flash unit and film camera flash unit.

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This product is a 12V PNP silicon low saturation switching transistor with extremely low on-state losses and extremely low saturation voltage, making it ideal for high efficiency, low voltage switching applications.

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This document is the ZXSC300 LED driver chip product manual released by Infineon Company, which introduces the characteristics and applications of the chip, application circuits and ordering information

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This document is an introduction to the datasheet of ZXCT1041.

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The ZXCT1081 is a high side current monitor from Zetex Semiconductors. It has a gain of 10 and a voltage output, and is suitable for a wide range of applications. The device is available in a SOT23-5 package and has a working voltage range of 3V to 40V. It can operate in ambient temperatures of -40°C to 125°C.

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This is a ZXMP6A18K type of P-channel enhancement mode MOSFET produced by Zetex. It features low voltage, low resistance, high switching speed and is suitable for high efficiency, low voltage power management applications.

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