UC2525B 数据资料 dataSheet 下载
... (Pins 9 and 8) have current source pull-ups, either can readily accept a pull-down signal which only has to sink a maximum of 100µA to turn off the outputs. This is subject to the added requirement of discharging whatever external capacitance may be attached to these pins. An alternate approach is t ...
... (Pins 9 and 8) have current source pull-ups, either can readily accept a pull-down signal which only has to sink a maximum of 100µA to turn off the outputs. This is subject to the added requirement of discharging whatever external capacitance may be attached to these pins. An alternate approach is t ...
ICS844021-01 - Integrated Device Technology
... and a multi-layer board, the appropriate value is 129.5°C/W per Table 6 below. Therefore, Tj for an ambient temperature of 70°C with all outputs switching is: 70°C + 0.295W * 129.5°C/W = 108.2°C. This is well below the limit of 125°C. This calculation is only an example. Tj will obviously vary depen ...
... and a multi-layer board, the appropriate value is 129.5°C/W per Table 6 below. Therefore, Tj for an ambient temperature of 70°C with all outputs switching is: 70°C + 0.295W * 129.5°C/W = 108.2°C. This is well below the limit of 125°C. This calculation is only an example. Tj will obviously vary depen ...
Word 2000 format
... test voltage means that (a) the polarity of the electrolytic does not matter when it is connected to the instrument and (b) the ESR meter can be used for accurate in circuit testing of capacitors because no semiconductor junctions will be turned on. So with nothing connected to the test terminals, t ...
... test voltage means that (a) the polarity of the electrolytic does not matter when it is connected to the instrument and (b) the ESR meter can be used for accurate in circuit testing of capacitors because no semiconductor junctions will be turned on. So with nothing connected to the test terminals, t ...
HMC732LC4B 数据资料DataSheet下载
... The HMC732LC4B is a wideband MMIC Voltage Controlled Oscillator which incorporates the resonator, negative resistance device, and varactor diode. Output power and phase noise performance are excellent over temperature due to the oscillator’s monolithic construction. The Vtune port accepts an analog ...
... The HMC732LC4B is a wideband MMIC Voltage Controlled Oscillator which incorporates the resonator, negative resistance device, and varactor diode. Output power and phase noise performance are excellent over temperature due to the oscillator’s monolithic construction. The Vtune port accepts an analog ...
AP6015
... N- and P-channel power MOSFET switches. Compared to the asynchronous topology, synchronous rectification offers the benefits of higher efficiency and reduced component count. The high operating frequency of 1MHz allows small inductor and capacitor to be used. This results in small pcb area. During s ...
... N- and P-channel power MOSFET switches. Compared to the asynchronous topology, synchronous rectification offers the benefits of higher efficiency and reduced component count. The high operating frequency of 1MHz allows small inductor and capacitor to be used. This results in small pcb area. During s ...
Temperature sensors and voltage references implemented in CMOS
... amount of improvement depends on the amount of stress. Using low-cost plastic packagin, the stress will vary over the range of 150 MPa [14], depending on temperature and long-term variations over this variations. According to Fig. 7, the range for pnp transistors are about a factor of two-and-a-half ...
... amount of improvement depends on the amount of stress. Using low-cost plastic packagin, the stress will vary over the range of 150 MPa [14], depending on temperature and long-term variations over this variations. According to Fig. 7, the range for pnp transistors are about a factor of two-and-a-half ...
Charge Time Optimizer
... – Most Common Solution for Smartphones (1s) and Tablets (1sXp) today – Allows for simple, low voltage design on the system (Max Battery Voltage 4.35V on some lithium based chemistries) – Simple design to charge from a 5V supply as the charger will always operate in step down mode – Multiple cells in ...
... – Most Common Solution for Smartphones (1s) and Tablets (1sXp) today – Allows for simple, low voltage design on the system (Max Battery Voltage 4.35V on some lithium based chemistries) – Simple design to charge from a 5V supply as the charger will always operate in step down mode – Multiple cells in ...
reSiStorS 101
... • The resistor is the most common and well-known of the passive electrical components. A resistor resists or limits the flow of electric current in a circuit. There are many uses for resistors: they are used to drop voltage, limit current, attenuate signals, act as heaters, act as fuses, furnish ele ...
... • The resistor is the most common and well-known of the passive electrical components. A resistor resists or limits the flow of electric current in a circuit. There are many uses for resistors: they are used to drop voltage, limit current, attenuate signals, act as heaters, act as fuses, furnish ele ...
2462-Electricity for OCR 21st
... travel round the circuit. All their energy is 'lost' in that lamp - whichever one they pass through. So the full battery voltage is applied to each lamp and they both light brightly. The general rule for any series circuit: If you add up the voltages across each componentthis sum will equal the supp ...
... travel round the circuit. All their energy is 'lost' in that lamp - whichever one they pass through. So the full battery voltage is applied to each lamp and they both light brightly. The general rule for any series circuit: If you add up the voltages across each componentthis sum will equal the supp ...
MAX16999 Ultra-Low Output Voltage, Low-Quiescent-Current Linear Regulator for High-Temperature Applications General Description
... The MAX16999 is a low-quiescent-current linear regulator designed for applications requiring high reliability, such as automotive applications. This device can supply loads up to 100mA and is available in factory-preset output voltages from 0.5V to 3.3V (see the Selector Guide). As illustrated in Fi ...
... The MAX16999 is a low-quiescent-current linear regulator designed for applications requiring high reliability, such as automotive applications. This device can supply loads up to 100mA and is available in factory-preset output voltages from 0.5V to 3.3V (see the Selector Guide). As illustrated in Fi ...
AP2552-53(A) - Diodes Incorporated
... An internal sensing FET is employed to check for over-current conditions. Unlike current-sense resistors, sense FETs do not increase the series resistance of the current path. When an overcurrent condition is detected, AP2552/53 maintains a constant output current and reduces the output voltage acco ...
... An internal sensing FET is employed to check for over-current conditions. Unlike current-sense resistors, sense FETs do not increase the series resistance of the current path. When an overcurrent condition is detected, AP2552/53 maintains a constant output current and reduces the output voltage acco ...
10-Bit, 12-Channel Output Decimating LCD Driver AD8386
... When TSW is HIGH, the output current limiter, as well as the thermal protection circuit, is turned on. The thermal protection circuit debiases the output amplifier when the junction temperature reaches the internally set trip point. In the event of an extended short circuit between a video output an ...
... When TSW is HIGH, the output current limiter, as well as the thermal protection circuit, is turned on. The thermal protection circuit debiases the output amplifier when the junction temperature reaches the internally set trip point. In the event of an extended short circuit between a video output an ...
AD7740
... The digital data that represents the analog input voltage is contained in the duty cycle of the pulse train appearing at the output of the comparator. The output is a pulse train whose frequency depends on the analog input signal. A full-scale input gives an output frequency of 0.9 fCLKIN and zero-s ...
... The digital data that represents the analog input voltage is contained in the duty cycle of the pulse train appearing at the output of the comparator. The output is a pulse train whose frequency depends on the analog input signal. A full-scale input gives an output frequency of 0.9 fCLKIN and zero-s ...
Power MOSFET Basics: Understanding the Turn-On Process
... Power MOSFET Basics: Understanding the Turn-On Process When confronted with the output characteristics, designers invariably demand to know the RDS(on) at their particular operating conditions. Typically it will be at a combination of VGS and IDS, where the curve has strayed from the straight and na ...
... Power MOSFET Basics: Understanding the Turn-On Process When confronted with the output characteristics, designers invariably demand to know the RDS(on) at their particular operating conditions. Typically it will be at a combination of VGS and IDS, where the curve has strayed from the straight and na ...
Lab 1
... The first connection is a capacitor between node b and the input vin. In steady state DC, capacitors are open circuits (see procedure O1 in this lab, for example). So for purposes of biasing the transistor, the connection to vin is an open circuit. The second connection is the transistor base. When ...
... The first connection is a capacitor between node b and the input vin. In steady state DC, capacitors are open circuits (see procedure O1 in this lab, for example). So for purposes of biasing the transistor, the connection to vin is an open circuit. The second connection is the transistor base. When ...
LM1575/LM1575HV/LM2575/LM2575HV Series SIMPLE
... A. Select the correct Inductor value selection guide from Figures 3, 4, 5, or 6. (Output voltages of 3.3V, 5V, 12V or 15V respectively). For other output voltages, see the design procedure for the adjustable version. B. From the inductor value selection guide, identify the inductance region intersec ...
... A. Select the correct Inductor value selection guide from Figures 3, 4, 5, or 6. (Output voltages of 3.3V, 5V, 12V or 15V respectively). For other output voltages, see the design procedure for the adjustable version. B. From the inductor value selection guide, identify the inductance region intersec ...
Schmitt trigger
In electronics a Schmitt trigger is a comparator circuit with hysteresis implemented by applying positive feedback to the noninverting input of a comparator or differential amplifier. It is an active circuit which converts an analog input signal to a digital output signal. The circuit is named a ""trigger"" because the output retains its value until the input changes sufficiently to trigger a change. In the non-inverting configuration, when the input is higher than a chosen threshold, the output is high. When the input is below a different (lower) chosen threshold the output is low, and when the input is between the two levels the output retains its value. This dual threshold action is called hysteresis and implies that the Schmitt trigger possesses memory and can act as a bistable multivibrator (latch or flip-flop). There is a close relation between the two kinds of circuits: a Schmitt trigger can be converted into a latch and a latch can be converted into a Schmitt trigger.Schmitt trigger devices are typically used in signal conditioning applications to remove noise from signals used in digital circuits, particularly mechanical contact bounce. They are also used in closed loop negative feedback configurations to implement relaxation oscillators, used in function generators and switching power supplies.