National Manuals (Others)

The LM3501 is a synchronous step-up DC/DC converter ideal for white LED applications, including cellular phone back-lighting, battery-powered applications, low current, and high efficiency.

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The LP3988 is a 150mA low dropout regulator designed specially to meet requirements of Portable battery- applications. The LP3988 is designed to work with a space saving, small 1µF ceramic capacitor. The LP3988 features an Error Flag output that indicates a faulty output condition. The LP3988’s performance is optimized for battery powered systems to deliver low noise, extremely low dropout voltage and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life. Power supply rejection is better than 60 dB at low frequencies and starts to roll off at 10 kHz. High power supply rejection is maintained down to lower input voltage levels common to battery operated circuits. The device is ideal for mobile phone and similar battery powered wireless applications. It provides up to 150 mA, from a 2.5V to 6V input, consuming less than 1 µA in disable mode and has fast turn-on time less than 200µs.

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LMS4684 is a low on-resistance, low voltage dual SPDT analog switch that operates from a 1.8V to 5.5V supply. The LMS4684 features a 0.5Ω RON for its NC switch and 0.8Ω RON for its NO switch at a 2.7V supply. The digital logic inputs are 1.8V logic- compatible with a 2.7V to 3.3V supply. The LMS4684 is available in the 12 bump micro SMD and the 10 lead LLP miniature packages. These PCB real estate saving packages offer extreme performance while saving money with small footprints.

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LP3995 Micropower 150mA CMOS Voltage Regulator with Active Shutdown is a low-power switching regulator manufactured by ON Semiconductor. It has low noise, low quiescent current and other characteristics, and is suitable for powering RF/Analog devices. The device also has internal short circuit current and over-temperature protection functions.

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The LM48820 is a ground-referenced, fixed-gain audio power amplifier capable of delivering 95mW of continuous average power into a 16Ω single-ended load, with less than 1% THD +N from a 3V power supply. It features a new circuit technology that utilizes a charge pump to generate a negative reference voltage, eliminating the need for output-coupling capacitors typically used with normal single-ended loads. The LM48820 does not require output coupling capacitors or bootstrap capacitors, making it ideally suited for mobile phone and other portable applications.

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The DAC101C081 is a 10-bit, single channel, voltage-output digital-to-analog converter (DAC) that operates from a +2.7V to 5.5V supply. It has a rail-to-rail output swing and a settling time of 6µs. The DAC101C081 uses the supply voltage as the reference to provide the widest dynamic output range and typically consumes 132µA while operating at 5.0V. It is available in 6-lead TSOT and LLP packages and provides three address options (pin selectable). As an alternative, the DAC101C085 provides nine I2C addressing options and uses an external reference. It has the same performance and settling time as the DAC101C081 and is available in an 8-lead MSOP package. The DAC101C081 and DAC101C085 use a 2-wire, I2C-compatible serial interface that operates in all three speed modes, including high speed mode (3.4MHz). An external address selection pin allows up to three DAC101C081 or nine DAC101C085 devices per 2-wire bus. Pin compatible alternatives to the DAC101C081 are available that provide additional address options. The DAC101C081 and DAC101C085 each have a 16-bit register that controls the mode of operation, the power-down condition, and the output voltage. A power-on reset circuit ensures that the DAC output powers up to zero volts. A power-down feature reduces power consumption to less than a microWatt. Their low power consumption makes them ideal for power-limited applications.

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The ADC083000 is a CMOS high performance analog-to-digital converter that provides 8-bit resolution at sampling rates up to 3.4 GSPS. The device consumes a typical 1.9 Watts from a single 1.9 Volt supply, and is guaranteed to have no missing codes over the full operating temperature range.

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The LP3990 is a 150mA linear voltage regulator for digital applications. It provides a 0.8V to 3.3V output voltage with 1% output voltage accuracy and 150mA output current.

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The LM49350 high performance audio codec sub-system with a ground-referenced stereo headphone amplifier and an ultra low EMI class D loudspeaker amplifier with dual I2S/PCM digital audio interfaces

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The LM3671 is a 2MHz, 600mA step-down DC-DC converter from TI. It is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7V to 5.5V. It provides up to 600mA load current, over the entire input voltage range. There are several different fixed voltage output options avail- able as well as an adjustable output voltage version range from 1.1V to 3.3V. The device offers superior features and performance for mo- bile phones and similar portable systems. Automatic intelli- gent switching between PWM low-noise and PFM low-current mode offers improved system control. During PWM mode, the device operates at a fixed-frequency of 2 MHz (typ.). Hys- teretic PFM mode extends the battery life by reducing the quiescent current to 16 µA (typ.) during light load and standby operation. Internal synchronous rectification provides high ef- ficiency during PWM mode operation. In shutdown mode, the device turns off and reduces battery consumption to 0.01 µA (typ.). The LM3671 is available in SOT23-5, tiny 5-bump micro SMD and a 6-pin LLP packages in leaded (PB) and lead-free (NO PB) versions. A high switching frequency of 2 MHz (typ.) al- lows use of tiny surface-mount components. Only three ex- ternal surface-mount components, an inductor and two ceramic capacitors, are required.

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The LP3950 is a color LED driver with a built-in audio synchronization feature for any analog audio input such as polyphonic ring tones and MP3 music. LEDs can be synchronized to an audio signal with two methods - amplitude and frequency. Also several fine tuning options are available for differentiation purposes. The chip also has an unique AGC (Automatic Gain Control) feature which tracks the input signal level and automatically adjusts the gain to an optimal value. The LP3950 has a high efficiency magnetic DC/DC converter with programmable output voltage and switching frequency. The converter has high output current capability so it is also able to drive flash LEDs in camera phone applications. The LP3950 is similar to LP3933 and LP3936 in that the color LEDs (or RGB LEDs) can also be programmed to generate light patterns (programmable color, intensity, on/off timing, slope and blinking cycle). All functions are software controllable through a SPI or I2C compatible interface but the device also supports one pin control for enabling predefined (default) audio synchronization mode.

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The LM2787 is a CMOS negative regulated switched capacitor voltage inverter that provides a very low noise adjustable output for devices with an input voltage in the range of +2.7V to +5.5V. This product uses four low-cost capacitors to provide up to 10mA of output current. The regulated output for the LM2787 is adjustable between -1.5V and -5.2V. The LM2787 operates at a switching frequency of 260kHz (typical) to reduce output resistance and voltage ripple. With an operating current of only 400µA (charge pump power efficiency greater than 90% with most loads) and 0.05µA typical shutdown current, the LM2787 is ideal for cellular phone power amplifier bias and other low current, low noise negative voltage needs. The device comes in small 8-Bump micro SMD and thin micro SMD packages.

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The LM3500 is a fixed-frequency step-up DC/DC converter that is ideal for driving white LEDs for display backlighting and other lighting functions. This device features fully integrated synchronous switching (no external Schottky diode required) and a low feedback voltage (500mV), making it highly efficient for lighting applications in wireless phones and other portable products (single cell Li-Ion or 3-cell NiMH battery supplies). The LM3500 operates with a fixed 1MHz switching frequency. When used with ceramic input and output capacitors, the LM3500 provides a small, low-noise, low-cost solution. Two LM3500 options are available with different output voltage capabilities. The LM3500-21 has a maximum output voltage of 21V and is typically suited for driving 4 or 5 white LEDs in series. The LM3500-16 has a maximum output voltage of 16V and is typically suited for driving 3 or 4 white LEDs in series (maximum number of series LEDs dependent on LED forward voltage). If the primary white LED network should be disconnected, the LM3500 uses internal protection circuitry on the output to prevent a destructive over-voltage event. A single external resistor is used to set the maximum LED current in LED-drive applications. The LED current can easily be adjusted using a pulse width modulated (PWM) signal on the shutdown pin. In shutdown, the LM3500 completely disconnects the LED power supply to prevent LED damage.

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The TP3094 is a monolithic PCM Codec and Filter device implemented using a digital signal processing architecture. It provides four voice channels, combining transmit bandpass and receive low pass channel filters with companding A-law or m-law PCM encoders and decoders. The device is fabricated using National’s advanced CMOS process. The device includes anti-aliasing filters and sigma-delta converters dedicated to each channel, and by a common signal processing unit which performs all the remaining filtering and processing for the four channels. The TP3094 includes a flexible PCM digital interface, which allows the device to be connected to PCM busses of different formats. It can also be connected with other TP3094 devices in a cascade fashion, for a system with up to 128 POTS interfaces (when a 2.048MHz PCM bus is used).

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LP3943 is an integrated device capable of independently driving 16 LEDs. This device also contains an internal precision oscillator that provides all the necessary timing required for driving each LED. Two prescaler registers along with two PWM registers provide a versatile duty cycle control. The LP3943 contains the ability to dim LEDs in SMBUS/I2C applications where it is required to cut down on bus traffic. Traditionally, to dim LEDs using a serial shift register such as 74LS594/5 would require a large amount of traffic to be on the serial bus. LP3943 instead requires only the setup of the frequency and duty cycle for each output pin. From then on, only a single command from the host is required to turn each individual open drain output ON, OFF, or to cycle a programmed frequency and duty cycle. Maximum output sink current is 25 mA per pin and 200 mA per package. Any ports not used for controlling the LEDs can be used for general purpose input/output expansion.

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The DAC081C081 is an 8-bit, single channel, voltage-output digital-to-analog converter (DAC) that operates from a +2.7V to 5.5V supply. It has a fast settling time and wide dynamic output range, making it suitable for low-power applications. The DAC081C085 is an alternative to the DAC081C081 with more address options and an external reference voltage feature.

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The LP2985 is a 150 mA, fixed-output voltage regulator designed to provide ultra low-dropout and low noise in battery powered applications. It delivers unparalleled performance in all specifications critical to battery-powered designs using an optimized VIP® (Vertically Integrated PNP) process.

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This document is an instruction manual for the OH-P32S, OH-32U, and OH-32W models of oil fan heaters (forced ventilation type open oil stoves). The document provides detailed information on the safe use precautions, names and functions of each part, preparation before use, ignition and extinguishing methods, room temperature adjustment, troubleshooting, and more.

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