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LTM8021 - 36VIN, 500mA Step-Down DC/DC uModule
LTM8021 - 36VIN, 500mA Step-Down DC/DC uModule

... voltage rises. At very large VIN to VOUT ratios, the duty cycle can be very small. Because the LTM8021’s internal controller IC has a minimum on-time, the regulator will skip cycles in order to maintain output voltage regulation. This will result in a larger output voltage ripple and possible distur ...
bq24123 - Texas Instruments
bq24123 - Texas Instruments

... 0.1μF and 1μF) between this output and VSS. There is an internal electrical connection between the exposed thermal pad and VSS. The exposed thermal pad must be connected to the same potential as the VSS pin on the printed circuit board. The power pad can be used as a star ground connection between V ...
1. Introduction - About the journal
1. Introduction - About the journal

... There can also be problems in low power IC technologies especially in high frequency applications and low level of the output signal (for example several tens of A in current mode) [21-25]. Recently published quadrature oscillators contain one [25-28, 31], two [19, 22, 29, 32, 34] or three [21, 33] ...
AP1122  1A LOW DROPOUT POSITIVE REGULATOR Description
AP1122 1A LOW DROPOUT POSITIVE REGULATOR Description

... SOT89-3L: Control Circuitry/Power Transistor (Note 5) SOT223-3L: Control Circuitry/Power Transistor (Note 6) TO252-3L: Control Circuitry/Power Transistor (Note 5) TO220-3L: Control Circuitry/Power Transistor (Note 5) TO263-3L: Control Circuitry/Power Transistor (Note 5) SOT89-3L: Control Circuitry/P ...
Model 2290 10 kV Power Supply
Model 2290 10 kV Power Supply

Synchronous Switch-Mode, Li-Ion, and Li
Synchronous Switch-Mode, Li-Ion, and Li

... This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete devi ...
SP3203E 数据资料DataSheet下载
SP3203E 数据资料DataSheet下载

... on Figure 12. There are two methods within IEC61000-4-2, the Air Discharge method and the Contact Discharge method. With the Air Discharge Method, an ESD voltage is applied to the equipment under test (EUT) through air. This simulates an electrically charged person ready to connect a cable onto the ...
IMX15 Series DC/DC Data Sheet
IMX15 Series DC/DC Data Sheet

... voltage versions as well as all double output versions fitted with option R feature an active magnetic feedback loop via a pulse transformer which results in very tight regulation of the output voltage (see fig.: Block diagram, single output types, -0503- types and double output types with option R) ...
RRR040P03
RRR040P03

... No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products" ...
12-Bit, 80 MSPS CommsADC? Analog-to-Digital
12-Bit, 80 MSPS CommsADC? Analog-to-Digital

MAX3280E/MAX3281E/ MAX3283E/MAX3284E ±15kV ESD-Protected 52Mbps, 3V to 5.5V, SOT23 RS-485/RS-422 True Fail-Safe Receivers
MAX3280E/MAX3281E/ MAX3283E/MAX3284E ±15kV ESD-Protected 52Mbps, 3V to 5.5V, SOT23 RS-485/RS-422 True Fail-Safe Receivers

... MAX3284E present a 1/4-unit-load input impedance ...
HV9921/HV9922/HV9923 3-Pin Switch-Mode LED Lamp Driver ICs Features Description
HV9921/HV9922/HV9923 3-Pin Switch-Mode LED Lamp Driver ICs Features Description

EC331.Sheet1 - Arab Academy for Science, Technology
EC331.Sheet1 - Arab Academy for Science, Technology

... 13. What unit is used to represent the level of a diode forward current IF? a) pA b) nA c) A d) mA 14. Which of the following ratings is true? a) Si diodes have higher PIV and narrower temperature ranges than Ge diodes. b) Si diodes have higher PIV and wider temperature ranges than Ge diodes. c) Si ...
60 mins Current electricity exam Qs B+ with
60 mins Current electricity exam Qs B+ with

BDTIC ICE3B0365J-T CoolSET -F3
BDTIC ICE3B0365J-T CoolSET -F3

... Start Phase takes place between 0.8V and 3.1V. Above VSoftsS = 3.1V there is no longer duty cycle limitation DCmax which is controlled by comparator C7 since comparator C2 blocks the gate G7 (see Figure 5).This maximum charge current in the very first stage when VSoftS is below 0.8V, is limited to 0 ...
SIMULATION WITH THE SEPIC TOPOLOGY (SEPIC-Single Ended Primary Inductance Converter)
SIMULATION WITH THE SEPIC TOPOLOGY (SEPIC-Single Ended Primary Inductance Converter)

... Now implement the schematic shown above in Figure 4 in NL5. It should look like Figure 5 below when complete. Vg is a DC voltage source (VDC) from the source library. It needs to be set for 120 volts. L1 is an ideal inductor from the library. Set to 500 µH. RL1 is an ideal resistor from the library ...
Analogous Non-Smooth Models of Mechanical and Electrical Systems
Analogous Non-Smooth Models of Mechanical and Electrical Systems

... dIC ∗ = −C ∗ duC ∗ , dIC = −CduC , dIC ◦ = −C ◦ duC ◦ , ...
HR2000 - Monolithic Power System
HR2000 - Monolithic Power System

... and the sweeping frequency is controlled to limit the preheat current. The preheat time and ignition time can be smartly set up for types of lamps and applications. Sufficient protection functions are provided for different fault modes such as over voltage, over current, over temperature, capacitive ...
Title : Feasible Performance Evaluations of Digitally
Title : Feasible Performance Evaluations of Digitally

... Orcad/Pspice simulator. Fig. 8 shows the coil current transient at start-up and Fig. 9 shows the ZVZCS performance of the switching technique at the turn off condition in more detail. The parameters of the resonant tank and the inverter are presented in Table I. For current source parallel resonant ...
Lauren Donohoe TA: Mike Barth EE 310, Fall 2012, Section 6
Lauren Donohoe TA: Mike Barth EE 310, Fall 2012, Section 6

STC3115 datasheet - STMicroelectronics
STC3115 datasheet - STMicroelectronics

... Mixed mode gas gauge system The STC3115 provides a mixed mode gas gauge using both a Coulomb counter (CC) and a voltage-mode (VM) algorithm to track the SOC of the battery in all conditions with optimum accuracy. The STC3115 directly provides the SOC information. The Coulomb counter is mainly used w ...
IGC82T170S8RM
IGC82T170S8RM

... Pulsed collector current, tp limited by Tvj, max ...
74CBTLV3861 10-bit bus switch with output enable
74CBTLV3861 10-bit bus switch with output enable

XR5486E 数据资料DataSheet下载
XR5486E 数据资料DataSheet下载

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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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