Total Dose and Single Event Testing of a Hardened Single-Ended Current Mode PWM Controller

Vonno, N. W. van; Pearce, L. G.; Wood, G. M.; White, Joshua; Thomson, E. J.; Bernard, T. M.; Chesley, P. J.; Hood, Ron

doi:10.1109/redw.2010.5619502

Cited by 13 publications

(4 citation statements)

References 3 publications

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“…For radiation environments, the current gains of β shown in Figure 2 at a transistor decrease as neutron dose increases. Many experimental results in the technical paper [8] were suggested for estimating the relationship between the current gain (β) and the dose. The characteristic model is considered before doing irradiation test of transistor P-SPICE [9], the circuit simulator of Microsim when the bipolar transistor is irradiated to neutron.…”

Section: Figure 2 Current Gain (β) Vs Collector Current ( For Different Neutron Dosementioning

confidence: 99%

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A Study on TID and SEL tests on PWM-IC Controller of DC/DC Power Buck Converter

Lho¹,

Salkuti²

2017

IJCA

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The radiation hardening parts in space systems should be used since there exist various kinds of radiation particles in space environment. The radiation technology is very important for the localization of electronic parts for the next generation of satellites to come. The DC/DC switching power converters are commonly used to generate a regulated DC output voltage with high efficiency. The DC/DC converter is composed of a pulse width modulation-integrated circuit (PWM-IC) controller, a metal-oxide semiconductor field effect transistor (MOSFET), an inductor, and a capacitor, etc. The PWM is applied to control and regulate the total output voltage. Radiation has the major influence on the changes in the electrical characteristics of PWM-IC. In PWM operation, the missing pulses and the changes in pulse width are studied by the simulation program with an integrated circuit emphasis (SPICE), Total Ionizing Dose (TID) and Single Event Latch-up (SEL) tests are accomplished and analyzed.

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Section: Figure 2 Current Gain (β) Vs Collector Current ( For Different Neutron Dosementioning

confidence: 99%

“…Then, the emitter of is obtained as follows. (8) where is the base current and β is the current gain. Pin 11 for the PWM-IC output is connected to a MOSFET driver, TPS 2813, from Texas Instruments, which is adaptable to IRF 3315S P-MOSFET.…”

Section: Radiation Effects Of Pwm-icmentioning

confidence: 99%

A Study on TID and SEL tests on PWM-IC Controller of DC/DC Power Buck Converter

Lho¹,

Salkuti²

2017

IJCA

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“…Typically, PWM circuits operate on either a current mode or a voltage mode. This paper fo cuses on the voltage mode PWM IC fo r the buck converter [1,3] by using of switching mode power supply (SMPS).…”

Section: Introductionmentioning

confidence: 99%

A study on radiation effects on PWM-IC controller of DC/DC power buck converter

Lho

Hwang

Lee

2013

2013 13th International Conference on Control, Automation and Systems (ICCAS 2013)

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DC-DC converter is composed of a PWM-IC (pulse width modulation-integrated circuit) controller, a MOSFET (metal-oxide semiconductor field effect transistor), inductor, capacitor, etc. PWM is applied to control and regulate the total output voltage. It is shown that the variation of threshold voltage at MOSFET and the offset voltage increase caused by radiation effects make the PWM pulse unstable. Radiation gives the main influence on the changes in the electrical characteristics of PWM-IC and MOSFET. In the PWM operation, the missing pulses, the changes in pulse width, and a change of the output waveform are studied by the simulation program with integrated circuit emphasis (SPICE) and compared with experiments.

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“…The supervisory circuit monitors all other blocks to generate the "Power Good" signal, which is used to monitor the health of the DC/DC converter. Single events can affect any one of these circuits [1,7,12,13,18,19]. However, hits to the PWM often do not significantly disturb the output voltage of the converter because perturbations of individual duty cycles are filtered by the LC low-pass filter on the output of the converter.…”

Section: Introductionmentioning

confidence: 99%

Correlation of Heavy-Ion and Laser Testing on a DC/DC PWM Controller

et al. 2013

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Pulsed laser and heavy-ion experiments were carried out on a commercial-off-the-shelf DC/DC pulse width modulation controller to study the equivalent laser Linear Energy Transfer (LET) at wavelengths of 750 nm, 800 nm, 850 nm and 920 nm. The laser experiments showed that the shorter wavelength laser has smaller threshold energy to generate single-event transient pulses. The cross-sections versus heavy-ion LET and laser energy per pulse were obtained and correlated. The heavy-ion and laser cross-sections fit well considering the effects of metal layers on the chip. The results of this research facilitate the future pulsed laser testing by providing explicit coefficients to evaluate the equivalent laser LET, which can be used to replace costly heavy-ion testing.

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Total Dose and Single Event Testing of a Hardened Single-Ended Current Mode PWM Controller

Abstract: We report results of total dose and SEE testing of the ISL7884xASRH hardened single-ended current mode PWM controller including discussion of part design, process and radiation testing results. The part is implemented in submicron BiCMOS.

Cited by 13 publications

References 3 publications

A Study on TID and SEL tests on PWM-IC Controller of DC/DC Power Buck Converter

A Study on TID and SEL tests on PWM-IC Controller of DC/DC Power Buck Converter

A study on radiation effects on PWM-IC controller of DC/DC power buck converter

Correlation of Heavy-Ion and Laser Testing on a DC/DC PWM Controller

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