TEXAS Manuals

The TL16C450 is a CMOS version of an asynchronous communications element (ACE) that typically functions in a microcomputer system as a serial interface. It features a programmable baud rate generator, full double buffering, addition or deletion of standard asynchronous communication bits (start, stop, and parity), and an independent receiver clock input.

The TL284x and TL384x series of control integrated circuits provide the features that are necessary to implement off-line or dc-to-dc fixed-frequency current-mode control schemes, with a minimum number of external components. Some of the internally implemented circuits are an undervoltage lockout (UVLO), featuring a start-up current of less than 1 mA, and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator (that also provides current-limit control), and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state. Major differences between members of these series are the UVLO thresholds and maximum duty-cycle ranges.

TL16C2550 is a 2.5V to 5V dual universal asynchronous receiver/transmitter with 16-byte FIFOs. It features internal diagnostic capabilities, programmable auto-RTS and auto-CTS, and fully prioritized interrupt system controls. The product is suitable for point-of-sale terminals, gaming terminals, portable applications, router control, cellular data, and more.

The TC245 786- × 488-PIXEL CCD IMAGE SENSOR is a high-resolution, solid-state image sensor designed for use in single-chip B/W NTSC TV applications. It has an 8-mm image-area diagonal and is compatible with 1/2-inch Vidicon optics. The sensor has 755 (H) x 242 (V) active elements in the image-sensing area, advanced on-chip signal processing, low dark current, electron-hole recombination antiblooming, dynamic range of more than 70 dB, high sensitivity, high photoresponse uniformity, high blue response, single-phase clocking, and solid-state reliability.

The TL1593C is a three-channel sample-and-hold integrated circuit designed for use in processing video signals generated by TI virtual-phase CCD image sensors. It can be used with one-, two-, and three-channel color and monochrome TI virtual-phase CCDs. Each sample-and-hold channel consists of a differential-input buffer, a digitally controlled switch, and an output buffer that has high impedance. Separate supply and ground pins are provided for the analog and digital sections to ensure optimum isolation. Internal-hold capacitors are included to reduce the external parts count. The differential inputs allow the amplifier return pin of the imager to be connected to CIN of the sample-and-hold circuit to obtain common-mode rejection for antiblooming clock transients in the CCD. The analog inputs should be capacitively coupled from the CCD outputs to ensure optimum performance. The TL1593C is supplied in a 16-pin plastic package and is characterized for operation from 0°C to 70°C.

The TC211 is a full-frame charge-coupled device (CCD) image sensor designed specifically for industrial applications requiring ruggedness and small size.

The TL1591 is a monolithic integrated sample-and-hold circuit that uses the BiFET process with Schottky-barrier diodes and is designed for use with CCD area imagers. This device consists of an ultra-fast input-buffer amplifier, a digital-controlled diode-bridge switch, and a high-impedance output buffer amplifier. The electronic switch is controlled by an LS-TTL-compatible logic input.

The TL1466I is a six-channel pulse-width-modulation (PWM) control circuit. This device contains reference voltage with a precision of ±2%, a triangle wave oscillator capable of high frequency oscillation up to 0.8 MHz, various protection circuitry and shutdown circuitry. The output regulation voltage for each channel is set by an external resistor divider. Moreover, the output stage is capable of driving a PNP power transistor with high speed. The high frequency/efficiency switching operation eliminates switching loss by using internal over-drive circuitry at the rising edge and with reverse bias connecting external bootstrap capacitor at the falling edge. The MOSFET can be used in parallel with the output diode at channel 1 and 4. This results in further high efficiency operation replacing the constant time with this MOSFET when the output diode is turned on. Furthermore, it operates 2.5 V supply voltage and also has short circuit protection, low power consumption, internal undervoltage lockout protection etc.

TL1464I is a high-speed drive controller for PNP power transistors. It features an internal 1.5V regulator, a low start-up voltage of 3.1V, internal short-circuit protection, internal undervoltage lockout protection, internal shut-down circuit by channel, and controllable base current of external transistor.

The TL145406 is a triple RS-232 driver/receiver that meets or exceeds the requirements of ANSI EIA/TIA-232-E and ITU V.28, designed to support data rates up to 120 kbits/s over 3-m cable, ESD protection exceeds 5 kV on all pins, flow-through design, wide-driver supply voltage ... ±4.5 V to ±15 V, functionally interchangeable with Motorola MC145406 and Texas Instruments SN75C1406

The TL1454/TL1454Y are dual-channel pulse-width-modulation (PWM) control circuits, primarily intended for low-power dc/dc converters. Applications include LCD displays, backlight inverters, notebook computers and other products requiring small, high-frequency dc/dc converters. Each PWM channel has its own error amplifier, PWM comparator, dead-time control comparator, and MOSFET driver. The voltage reference, oscillator, undervoltage lockout and short-circuit protection are common to both channels. Channel 1 is configured to drive n-channel MOSFETs in step-up or flyback converters, and channel 2 is configured to drive p-channel MOSFETs in step-down or inverting converters. The operating frequency is set with an external resistor and an external capacitor, and dead time is continuously adjustable from 0 to 100% duty cycle with a resistive divider network. Soft start can be implemented by adding a capacitor to the dead-time control (DTC) network. The error-amplifier common-mode input range includes ground, therefore this circuit can be used in low-voltage applications.

TL1453C is a dual pulse-width-modulation control circuit with complete PWM power control circuitry, completely synchronized operation, internal undervoltage lockout protection, wide supply voltage range, 500 kHz oscillator frequency, variable dead time control, and internal stable 2.5V reference supply.

tl1451a is an integrated circuit produced by texas instruments. It is mainly used for power supply control and supports pwm control circuits.