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OL7272 - Quantum Devices, Inc.
OL7272 - Quantum Devices, Inc.

... In some rare applications it might be useful to disable the overtemperature shutdown. This can be done by setting the ENABLE pin to a level between >7,5 V and <12 V. In this case the whole protection of the IC is disabled! In case of any short circuits or thermal overdrive, the driver might be destr ...
LMD18245 3A, 55V DMOS Full-Bridge Motor Driver
LMD18245 3A, 55V DMOS Full-Bridge Motor Driver

Chapter 1 - UniMAP Portal
Chapter 1 - UniMAP Portal

低功耗、精密 单电源运算放大器 OPA2234M 特性
低功耗、精密 单电源运算放大器 OPA2234M 特性

... Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such informati ...
High voltage half-bridge driver
High voltage half-bridge driver

OPA548: High-Voltage, High-Current Operational Amplifier (Rev. C)
OPA548: High-Voltage, High-Current Operational Amplifier (Rev. C)

... idle periods (quiescent current drops to approximately 6 mA), but also allows multiplexing in low frequency (f < 20 kHz), multichannel applications. Signals greater than 20 kHz may cause leakage current to increase in devices that are shutdown. Figure 33 shows the two OPA548s in a switched amplifier ...
UC3849 数据资料 dataSheet 下载
UC3849 数据资料 dataSheet 下载

... synchronize several chips to the fastest oscillator. Its input synchronization threshold is 1.4 V. The CLKSYN voltage is 3.6 V when the oscillator capacitor (CT) is being discharged, otherwise it is 0 V. If the recommended synchronization circuit is not used, a 1 kΩ or lower value resistor from CLKS ...
Comparing Buck Converter Topologies
Comparing Buck Converter Topologies

... difference between the feedback signal and reference voltage. The rising slope of the inductor current is compared with the output of the error amplifier and when the inductor current exceeds the error amplifier voltage, the upper MOSFET is switched off. The inductor current then flows via the lower ...
Diodes
Diodes

... For ideal diode, current flows only one way  Real diode is close to ideal Ideal Diode ...
TVS Diode Array SP721 Lead-Free/Green Datasheet
TVS Diode Array SP721 Lead-Free/Green Datasheet

... ESD and over-voltage protection to sensitive input circuits. The SP721 has 2 protection SCR/Diode device structures per input. There are a total of 6 available inputs that can be used to protect up to 6 external signal or bus lines. Overvoltage protection is from the IN (Pins 1 - 3 and Pins 5 - 7) t ...
Power MOSFET with integrated poly-silicon diode to monitor junction temperature, with simplified external electrical shutdown circuit to prevent thermal runaway
Power MOSFET with integrated poly-silicon diode to monitor junction temperature, with simplified external electrical shutdown circuit to prevent thermal runaway

... electrical system. For this case, the paper suggests a design example of how achieve a device shutdown event if the junction temperature reaches its maximum guaranteed value. Finally, an evaluation of the error in the junction temperature reading under different thermal conditions is performed to co ...
Determining the Maximum Output Current
Determining the Maximum Output Current

... not convey any license under its patent rights nor the rights of others. Freescale Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any othe ...
FR011L5J (11mΩ, -30V) Low-Side Reverse Bias / Reverse Polarity Protector FR011L
FR011L5J (11mΩ, -30V) Low-Side Reverse Bias / Reverse Polarity Protector FR011L

... intended to indicate the device’s ability to withstand transient events that exceed the recommended operating voltage rating. Specification is based on qualification devices tested using accelerated destructive testing at higher voltages, as well as production pulse testing at the V+24 level. Produc ...
RFHA1101 RF OUT VD RF IN
RFHA1101 RF OUT VD RF IN

... ESD Sensitive Material. Please use proper ESD precautions when handling devices die. Die must be mounted with minimal die attach voids for proper thermal dissipation. This device is a depletion mode HEMT and must have gate voltage applied for pinched off prior to applying drain voltage. 1. Mount dev ...
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... VERIFICATION OF OHM’S LAW ...
ISL32704E Datasheet
ISL32704E Datasheet

... 6. All voltages on the isolator primary side are with respect to GND1. All line voltages and common-mode voltages on the isolator secondary or bus side are with respect to GND2. 7. Differential I/O voltage is measured at the noninverting bus terminal A with respect to the inverting terminal B. 8. Sk ...
Precision Logarithmic and Log Ratio Amplifier
Precision Logarithmic and Log Ratio Amplifier

Experiment #3
Experiment #3

... charge. In addition the effective resistance of the series and parallel circuits will be determined and compared to theoretical predictions. Ohm’s Law, the proportionality between voltage and current, is true for many things that conduct current but not for everything. Conductors, which do have V re ...
THE SWITCHING BEHAVIOUR OF AN IGBT IN ZERO CURRENT
THE SWITCHING BEHAVIOUR OF AN IGBT IN ZERO CURRENT

ZENER DIODES
ZENER DIODES

... To calculate this change, first calculate the new current through the load (IL) as VL/RL: IL = 5.1V/250 = 0.0204A or 20.4mA The new current through the Zener (IZ) is ITOTAL - IL: IZ = 0.069-0.0204 = 0.0486A or 48.6mA The resistance of the Zener (RZ) will therefore be VZ / IZ: RZ = 5.1V/0.0486A = 1 ...
Measuring Low Resistance Devices with High Current
Measuring Low Resistance Devices with High Current

... test resistance (R) through one set of test leads, while the voltage (V M) across the DUT is measured through a second set of leads called sense leads. Although some small current may flow through the sense leads, it is usually negligible and can generally be ignored for all practical purposes. ...
2N5191 - Silicon NPN Power Transistors
2N5191 - Silicon NPN Power Transistors

... ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/ ...
INA19x Current Shunt Monitor −16 V to +80 V Common
INA19x Current Shunt Monitor −16 V to +80 V Common

ISL6730A, ISL6730B, ISL6730C, ISL6730D Datasheet
ISL6730A, ISL6730B, ISL6730C, ISL6730D Datasheet

... Voltage feed back pin. Connect this pin to a resistor divider from the output. The resistor divider sets the output voltage. When the FB pin voltage exceeds 104% of the reference voltage, overvoltage-protection is triggered and gate drive is disabled. When the FB pin is below 10%, the device is put ...
Types of Electrical Overstress Protection
Types of Electrical Overstress Protection

... To provide symmetrical snapback behavior it is necessary to use two anti parallel thyristors. This can be achieved with a pair of discrete thyristors, as shown in Figure 9a, or it can be done with an integrated structure on a single piece of silicon including five doping levels, as illustrated in ...
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Current mirror

A current mirror is a circuit designed to copy a current through one active device by controlling the current in another active device of a circuit, keeping the output current constant regardless of loading. The current being 'copied' can be, and sometimes is, a varying signal current. Conceptually, an ideal current mirror is simply an ideal inverting current amplifier that reverses the current direction as well or it is a current-controlled current source (CCCS). The current mirror is used to provide bias currents and active loads to circuits. It can also be used to model a more realistic current source (since ideal current sources don't exist).The circuit topology covered here is one that appears in many monolithic ICs. It is a Widlar mirror without an emitter degeneration resistor in the follower (output) transistor. This topology can only be done in an IC as the matching has to be extremely close and cannot be achieved with discretes.Another topology is the Wilson mirror. The Wilson mirror solves the Early effect voltage problem in his design.
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