Part Number: VFC32KP

Function: Voltage-to-Frequency and Frequency-to-Voltage Converter

Package: DIP 14 Pin Type

Manufacturer: Burr-Brown (Texas Instruments)

Image and Pinouts:

 

Description

The VFC32KP voltage-to-frequency converter provides an output frequency accurately proportional to its input voltage. The digital open-collector frequency output is compatible with all common logic families. Its integrating input characteristics give the VFC32 excellent noise immunity and low nonlinearity.

Features

1. OPERATION UP TO 500kHz

2. EXCELLENT LINEARITY
(1) ±0.01% max at 10kHz FS
(2) ±0.05% max at 100kHz FS

3. V/F OR F/V CONVERSION

4. MONOTONIC

5. VOLTAGE OR CURRENT INPUT

Applications:

1. INTEGRATING A/D CONVERTER

2. SERIAL FREQUENCY OUTPUT

3. ISOLATED DATA TRANSMISSION

4. FM ANALOG SIGNAL MOD/DEMOD

5. MOTOR SPEED CONTROL

6. TACHOMETER

 

VFC32KP Datasheet PDF Download

Other data sheets are available within the file:

VFC32BM, VFC32, VFC32KU, VFC32KU/2K5, VFC32SM

Part Number: TC962EPA

Description

High Current Charge Pump DC-to-DC Converter

Package: DIP 8 Pin Type

Manufacturer: Microchip Technology

The TC962EPA is an advanced version of the industry standard TC7662 high voltage DC-to-DC converter. Using improved design techniques and CMOS construction, the TC962 can source as much as 80 mA versus the 7662’s 20 mA capability. As an inverter, the TC962 can put out voltages as high as 18V and as low as 3V without the need for external diodes. The output impedance of the device is a low 28Ω (with the proper capacitors), voltage conversion efficiency is 99.9%, and power conversion efficiency is 97%.

Block Diagram :

The low voltage terminal (pin 6)required in some 7662 applications has been eliminated. Grounding this terminal will double the oscillator frequency from 12kHz to 24kHz. This will allow the use of smaller capacitors for the same output current and ripple, in most applications. Only two external capacitors are required for inverter applications. In the event an external clock is needed to drive the TC962 (such as paralleling),driving this pin directly will cause the internal oscillator to sync to the external clock.

Pinout

TC962EPA Datasheet PDF

 

 

Related articles across the web

• Microcontroller Adjustment of a DC to DC Converter
• Blog Post: Designing for isolated DC/DC converter shunt safety