Gideon Analytical Laboratories received two Sunon Maglev MC35101V2-000U-G99 12V fans which did not operate. Along with the nonoperational fans, two functional fans were also sent to us for comparison. The Sunon Maglev MC35101V2-000U-G99 12V fan is an axial DC fan, with a speed of 7500 RPM and airflow of 6.5 CFM. An axial fan is a type of fan that causes gas to flow through it in an axial direction, parallel to the shaft about which the blades rotate.
Gideon Analytical Laboratories received a programmable logic device (PLD) P18586P for failure analysis. A programmable logic device is an electronic component used to build reconfigurable digital circuits. Unlike a logic gate, which has a fixed function, a PLD has an undefined function at the time of manufacture. Before the PLD can be used in a circuit it must be programmed. A PLD is a combination of a logic device and a memory device.
Gideon Analytical Analytical Laboratories received one On Semi MC14070BG CMOS SSI in a SOEIAJ-14 package, with the 15V supply line pulled down to 3.5V. The MC14070B quad exclusive OR gate and the MC14077B quad exclusive NOR gates are constructed with MOS P−channel and N−channel enhancement mode devices in a single monolithic structure. These complementary MOS logic gates find primary use where low power dissipation and/or high noise immunity is desired. The CMOS is a Complementary metal–oxide–semiconductor, which is a technology for constructing integrated circuits.
Gideon Analytical Laboratories received one Honeywell SS466A Hall effect sensor encapsulated in epoxy for failure analysis. A Hall effect sensor is a transducer that varies its output voltage in response to a magnetic field. Hall effect sensors are used for proximity switching, positioning, speed detection, and current sensing applications. In a Hall effect sensor, a thin strip of metal has a current applied along it, in the presence of a magnetic field the electrons are deflected towards one edge of the metal strip, producing a voltage gradient across the short side of the strip (perpendicular to the feed current).
Gideon Analytical Laboratories, Inc. received Atmel AT91SAM9260 based Embedded MPU; it is a 180 MHz ARM926EJ-S ARM Thumb Processor. The SAM9260 is based on the integration of an ARM926EJ-S processor with fast ROM and RAM memories and a wide range of peripherals. It embeds an Ethernet MAC, one USB Device Port, and a USB Host controller. It also integrates several standard peripherals, such as the USART, SPI, TWI, Timer Counters, Synchronous Serial Controller, ADC, and MultiMedia Card Interface.
Gideon Analytical Laboratories received four National LM5111-1m dual 5A compound gate drivers. There were two bad devices and two good ones for comparison. A gate driver is a power amplifier that accepts a low-power input from a controller IC and produces a high current drive input for the gate of a high-power transistor. They consist of a level shifter in combination with an amplifier. They can power IGBTs and MOSFETs. They can help control electronics that need higher power than the PWM signals can generate.
Gideon Analytical Laboratories received two integrated circuits for failure analysis. Integrated circuits (ICs) are an assembly of electronic components, fabricated as a single unit, in which miniaturized active devices (like transistors and diodes) and passive devices (like capacitors and resistors) and their interconnections are built upon a thin substrate of semiconductor material. One was a Texas Instruments 5962-9861201QXA and the other was a Vishay 5962-9562301Q3A. The Texas Instruments 5962-9861201QXA was a DSP fixed-point 16-Bit 40MHz 20MIPS 132-Pin CFPAK.
“ Gideon Analytical Laboratories received four National Semiconductor LM5111-1M dual 5A compound gate drivers. A gate driver is a power amplifier that accepts low-power input from a controller integrated circuit and produces a high-current drive input for the gate of a high power transistor. These LM5111 Dual Gate drivers have high peak output current and efficiency. Each of the compound output driver stage includes MOS and bipolar transistors operating in parallel that together sink more than 5A peak from capacitive loads.
Gideon Analytical Labs received two failed RV4140A ground fault interrupter controllers. The devices had far different impedance values than a new one did on several of the input pins. The RV4140A is a low power controller for AC outlet appliance leakage circuit interrupters. These devices detect hazardous current paths to ground such as an appliance falling into the water. The interrupter then opens circuits line before a harmful or lethal shock occurs.
Gideon Analytical Labs received two AD73311L CMOS general purpose analog front end processors. Each device had external thermal damage to the package and solder leads. The intent was to determine whether the failures were thermally or EOS induced. The AD73311L is a front-end processor for applications such as speech and telephony. It has a 16-bit A/D conversion channel and a 16-bit D/A conversion channel. Each channel provides 70 dB signal-to-noise ratio over the voice band signal bandwidth.
Gideon Analytical Laboratories received two ICM7555 CMOS RC timers. Each device was pulling down the output.
The ICM7556 is a CMOS RC timer which provides stable a controller capable of producing accurate time delays or frequencies. The ICM7556 is a dual ICM7555, with the two timers operating independently of each other, sharing only V+ and GND. In the one-shot mode, the pulse width of each circuit is precisely controlled by one external resistor and capacitor.
Gideon Analytical Laboratories received eighteen digital signal processors (DSPs) for failure analysis. A DSP is a microprocessor architecturally designed to mathematically modify or improve a signal. DSPs are used in a variety of applications, including audio and speech signal processing or and sonar and radar signal processing. The goal in digital signal processing is to convert real-world analog signals into digital signals. Gideon Analytical Laboratories performed failure analysis on the DSPs.
Gideon Analytical Labs received three failed and three operating Sitronix ST7528 LCD controller/drivers mounted directly on glass and connected via a 24 pad polyimide flex circuit to an FRU controller card. The failed units had a date code 06114A*C3 on a white label, version 1.6.
These are the test point pads on NG1. These are output pads. There is an EOS (electrical overstress) under the glass just below the second rail.