Thursday, April 09, 2009

TDA5140A Brushless DC Motor Drive - NXP

TDA5140A Brushless DC Motor Drive - NXP

"The TDA5140A is a bipolar integrated circuit used to drive 3-phase brushless DC motors in full-wave mode. "

Features Include -

  • Full-wave commutation without position sensors.
  • Three push-pull outputs: 0.8 A output current.
  • Thermal protection - Flyback diodes
  • Tacho output without extra sensor

AN93014_EIE; TDA5140AT with Position Indicator Page-In & Speed Control - PDF

NXP Semiconductors - NXP - Application Notes

NXP (for Next eXPerience) semiconductor company founded by Philips.

4-20mA Conditioning - XTR101 TI BB

These are Burr Brown Devices from TI. The BB Chips are excellent devices and High Precision, but a bit more expensive. These can be used when customer demands a Higher Quality and Precision. These are good for High Reliability Industrial Instrumentation. - delabs

4-20mA Conditioning - XTR101 TI BB

The XTR101 is a microcircuit, 4-20mA, two-wire transmitter containing a high accuracy instrumentation amplifier (IA), a voltage-controlled output current source, and dual-matched precision current reference.

4-20mA Conditioning - XTR101 TI BB

The two-wire transmitter allows signal and power to be supplied on a single wire pair by modulating the power-supply current with the input signal source. The transmitter is immune to voltage drops from long runs and noise from motors, relays, actuators, switches, transformers, and industrial equipment.

ZA9L1 Secure ARM Microcontroller - Maxim Zatara

ZA9L1 Secure ARM Microcontroller - Maxim Zatara

The Zatara ZA9L1 is a highly integrated system-on-chip (SoC) microcontroller based on the ARM922T 32-bit/16-bit core and tailored to the specific requirements of point-of-sale (POS) terminal design and meet the strict security requirements of the Payment Card Industry (PCI) Security Standards Council 2.0 specification.

Features Include

  • Real-Time Clock
  • Watchdog Timer (WDT)
  • Two Dedicated SPI Interfaces
  • USB 2.0 OTG Interface
  • Nine Timer/Counters
  • Three UARTs

Security Features Include

  • Embedded Boot ROM
  • 32-Bit Unique ID Number
  • NIST 800-22-Compliant Random-Number Generator
  • FIPS 180-2-Compliant SHA-1 Hash Generator

POS Security Features for PCI Compliance

  • Voltage and Temperature Sensors
  • Sensors for Tamper Switches and Wire Mesh
  • Clock Frequency and Glitch Protection
  • Battery-Backed Secure Memory with Active Zeroization

Wednesday, April 08, 2009

ADS7816 - 12-Bit High Speed Sampling AD

The ADS7816 is a 12-bit, 200kHz sampling analog to- digital converter. It features low power operation with automatic power down, a synchronous serial interface, and a differential input. The reference voltage can be varied from 100mV to 5V, with a corresponding resolution from 24mV to 1.22mV. - From TI Applications

ADS7816  - 12-Bit High Speed A/D Converter

Low power, automatic power down, and small size make the ADS7816 ideal for battery operated systems or for systems where a large number of signals must be acquired simultaneously. It is also ideal for remote and/or isolated data acquisition.

ADS7816 - 12-Bit High Speed Sampling AD

12-Bit High Speed Micro Power Sampling Analog-to-Digital converter

The ADS7816 is a classic successive approximation register (SAR) analog-to-digital (A/D) converter. The architecture is based on capacitive redistribution which inherently includes a sample/hold function.

The converter is fabricated on a 0.6ยต CMOS process. The architecture and process allow the ADS7816 to acquire and convert an analog signal at up to 200,000 conversions per second while consuming very little power

LM3445 - TRIAC dimmable offline LED driver

Conventional TRIAC dimmers are designed to interface to a resistive load (halogen or incandescent bulb), while today's LED driver solutions interfaced to a standard wall dimmer produce 120 Hz flicker of the LED and/or do not allow 100:1 dimming.

LM3445 - TRIAC dimmable offline LED driver

The LM3445 provides a constant current for illuminating high power LEDs and includes a TRIAC . The LM3445 contains all the necessary circuitry to build a line-powered (mains powered) constant current LED driver whose output current can be controlled with a conventional TRIAC dimmer.

LM3445 - TRIAC dimmable offline LED driver

Thermal shutdown limits total power dissipation by turning off the output switch when the IC junction temperature exceeds 165°C. After thermal shutdown occurs, the output switch doesn ’t turn on until the junction temperature drops to approximately 145°C

delabs Schematics