The IRC 1900HT and 4700HT Series is the ultimate combination of precision performance, reliability, and long term stability in a low profile, TaNFilm® DIP and SIP packages. The rugged welded lead construction combined with the inherent passivation characteristics of tantalum nitride film insure superior continuous performance in high temperature applications over the installed life of the part.
1900HT / 4700HT SERIES • Inherent reliability • Custom configurations available • Bonded leads not susceptible to solder reflow problems • Absolute tolerence to ±0.1% - ratio accuracy to ±0.05% • Absolute TCR to ±25 ppm/°C - ratio tracking to ±5ppm/°C
Product Highlight • Active burst mode for low standby power • Digital frequency reduction for better overall system efficiency • Integrated power cell for IC self-power supply
Description ICE2QS03 is a quasi-resonant PWM controller optimized for off-line switch power supply applications such as LCD TV, CRT TV and notebook adapter. The digital frequency reduction with decreasing load enables a quasi-resonant operation till very low load. As a result, the overall system efficiency is significantly improved compared to other conventional solutions. The active burst mode operation enables an ultra-low power consumption at standby mode with small and controllable output voltage ripple. Based on the BiCMOS technology, the product has a wide operation range (up to 26V) of IC power supply and lower power consumption. The numerous protection functions give a full protection of the power supply system in failure situations. All of these make the ICE2QS03 an outstanding controller for quasi-resonant flyback converter in the market.
Features • Quasiresonant operation till very low load • Active burst mode operation at light/no load for low standby input power (< 100mW) • Digital frequency reduction with decreasing load • Power cell for VCC pre-charging with constant current • Built-in digital soft-start • Foldback correction and cycle-by-cycle peak current limitation • Auto restart mode for VCC Overvoltage protection • Auto restart mode for VCC Undervoltage protection • Auto restart mode for openloop/overload protection • Latch-off mode for adjustable output overvoltage protection • Latch-off mode for Short-winding protection
The DS32kHz is a temperature-compensated crystal oscillator (TCXO) with an output frequency of 32.768kHz. This device addresses applications requiring better timekeeping accuracy, and can be used to drive the X1 input of most Dallas Semiconductor real-time clocks (RTCs), chipsets, and other ICs containing RTCs. This device is available in commercial (DS32kHz) and industrial (DS32kHz-N) temperature versions.
Accurate to ±4 Minutes/Year (-40°C to +85°C)
Accurate to ±1 Minute/Year (0°C to +40°C)
Battery Backup for Continuous Timekeeping
VBAT Operating Voltage: 2.7V to 5.5V with VCC Grounded
Linear Systems High Voltage Super-Beta Monolithic Dual NPN
The LS313 is a monolithic pair of NPN transistors mounted in a single P-DIP package. The monolithic dual chip design reduces parasitics and gives better performance while ensuring extremely tight matching. The 8 Pin P-DIP provides ease of manufacturing, and the symmetrical pinout prevents improper orientation.
FEATURES HIGH GAIN hFE ≥ 400 @ 10µA‐1mA TIGHT VBE MATCHING |VBE1 – VBE2 |= 0.2mV TYP. HIGH ft 250MHz TYP. @ 1mA
◾ Very high gain ◾ Tight matching ◾ Low Output Capacitance
General Description The MAX038 evaluation kit (EV kit) is a high-frequency function generator capable of producing accurate triangle/sawtooth, sine, and square/pulse waveforms up to 10MHz, using the supplied components. Output frequency and duty cycle are easily adjusted with on-board potentiometers. Removable jumpers select sine, square, or triangle waveforms, or fix the duty cycle at 50%. The output is buffered with a MAX442 amplifier capable of driving a 50Ω coaxial cable. The MAX038 EV kit is fully assembled and tested.
Features ♦ 325kHz to 10MHz Operation ♦ Adjustable Duty Cycle ♦ 2.5V Reference Output ♦ TTL-Compatible SYNC Output ♦ Fully Assembled and Tested