ON Manuals

The NCP1200 is a PWM current-mode controller designed for low-power universal off-line supplies. It allows the implementation of a complete offline battery charger or a standby SMPS with few external components due to its novel concept. The integrated output short-circuit protection enables the designer to build an extremely low-cost AC-DC wall adapter with a simplified feedback scheme. The controller operates at a fixed frequency of 40 kHz, 60 kHz, or 100 kHz and drives low gate-charge switching devices like an IGBT or a MOSFET, requiring very small operating power. The NCP1200 simplifies the design of reliable and cheap offline converters with low acoustic generation and pulse-by-pulse control thanks to its current-mode control. When the current setpoint falls below a certain value, such as when the output power demand decreases, the IC automatically enters the skip cycle mode, providing excellent efficiency at light loads. This occurs at low peak current, resulting in no acoustic noise. The IC is self-supplied from the DC rail, eliminating the need for an auxiliary winding and ensuring operation even in the presence of low output voltage or shorts.

This is an 8-channel EMI filter with integrated ESD protection. Typical component values of R = 28 Ω, C = 17 pF and L = 1.0 nH deliver a cutoff frequency of 125 MHz and stop band attenuation greater than −25 dB from 800 MHz to 3.0 GHz. This performance makes the part ideal for parallel interfaces with data rates up to 83 Mbps in applications where wireless interference must be minimized. The specified attenuation range is very effective in minimizing interference from 2G/3G, GPS, Bluetooth® and WLAN signals.

MC14099B is an 8-bit addressable latch with serial data input and parallel output functions. It can enter data in serial form when the appropriate latch is addressed (via address pins A0, A1, A2) and write disable is in the low state. The data is presented in parallel at the output of the eight latches independently of the state of Write Disable, Write/Read or Chip Enable. A Master Reset capability is available on both parts.

The MC10H211 is a dual 3 input 3 output NOR gate, which can drive up to 6 transmission lines simultaneously. It can also wire OR several levels of gating for minimization of gate and package count. The ability to control three parallel lines with minimum propagation delay from a single point makes the MC10H211 particularly useful in clock distribution applications where minimum clock skew is desired.

MC10103 is a quad 2-input OR gate with OR/NOR outputs. It features low power consumption and short propagation delay.

The BZX84C2V4ET1 series Zener voltage regulators are 225mW power, SOT-23 surface mount devices. These devices are designed to provide voltage regulation with minimum space requirements. They are well suited for applications such as cellular phones, hand held portables, and high density PC boards.

1500 Watt Peak Power Mosorb® Zener Transient Voltage Suppressors Unidirectional*

The MC14049UB hex inverter/buffer is constructed with MOS P–channel and N–channel enhancement mode devices in a single monolithic structure. This complementary MOS device finds primary use where low power dissipation and/or high noise immunity is desired. This device provides logic–level conversion using only one supply voltage, VDD. The input–signal high level (VIH) can exceed the VDD supply voltage for logic–level conversions. Two TTL/DTL Loads can be driven when the device is used as CMOS–to–TTL/DTL converters (VDD = 5.0 V, VOL ≤ 0.4 V, IOL ≥ 3.2 mA). Note that pins 13 and 16 are not connected internally on this device; consequently connections to these terminals will not affect circuit operation.

This product is MBR120ESFT1/D Surface Mount Schottky Power Rectifier Plastic SOD-123 Package, using the Schottky Barrier principle, suitable for low voltage, high frequency rectification or as free wheeling and polarity protection diodes for surface mount applications where compact size and weight are critical to the system. This package also provides an easy to work with alternative to leadless 34 package style. Because of its small size, it is ideal for use in portable and battery powered products such as cellular and cordless phones, chargers, notebook computers, printers, PDAs and PCMCIA cards.

The NCS2002, NCV2002 is a small, single-channel, low voltage, low power, low noise, low input bias current operational amplifier.

NCP5612 is Onsemi's ultra small white LED driver dedicated to LCD display backlighting. It provides 90% peak efficiency and 0.2% LED to LED matching.

This is a Schottky diode, ideal for low voltage, high frequency rectification or as free wheeling and polarity protection diodes in surface mount applications where compact size and weight are critical to the system.

LM2576 is a 3.0A, 15V step-down switching regulator produced by Semiconductor Components Industries. It has excellent line and load regulation characteristics, can work at fixed output voltages of 3.3V, 5.0V, 12V, 15V and adjustable output voltages, and has a high power conversion efficiency.

The MC78M00/MC78M00A Series positive voltage regulators are identical to the popular MC7800 Series devices, except that they are specified for only half the output current. Like the MC7800 devices, the MC78M00 three-terminal regulators are intended for local, on-card voltage regulation. Internal current limiting, thermal shutdown circuitry and safe-area compensation for the internal pass transistor combine to make these devices remarkably rugged under most operating conditions. Maximum output current, with adequate heatsinking is 500 mA.

MC14543B/D is a BCD-to-seven-segment latch/decoder/driver designed and manufactured by Semiconductor Components Industries, LLC, USA. It can be used with liquid crystal displays and is constructed with complementary MOS (CMOS) enhancement mode devices. The circuit provides the functions of a 4-bit storage latch and an 8421 BCD-to-seven segment decoder and driver. The device has the capability to invert the logic levels of the output combination. The phase (Ph), blanking (BI), and latch disable (LD) inputs are used to reverse the truth table phase, blank the display, and store a BCD code, respectively. For liquid crystal (LC) readouts, a square wave is applied to the Ph input of the circuit and the electrically common backplane of the display. The outputs of the circuit are connected directly to the segments of the LC readout. For other types of readouts, such as light-emitting diode (LED), incandescent, gas discharge, and fluorescent readouts, connection diagrams are given on this data sheet. Applications include instrument (e.g., counter, DVM etc.) display driver, computer/calculator display driver, cockpit display driver, and various clock, watch, and timer uses.