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TEXAS INSTRUMENTS LM2917N/NOPB
Frequency to Voltage Converter, 5 kHz, 0.3 %, 0V to 28V, DIP-14
- Manufacturer:
- TEXAS INSTRUMENTS TEXAS INSTRUMENTS
- Manufacturer Part No:
- LM2917N/NOPB
- Order Code:
- 3119234
-
- ECAD / MCAD
-
Product Overview
The LM2917N/NOPB is a monolithic Frequency-to-voltage Converter with a high gain op amp/comparator designed to operate a relay, lamp or other load when the input frequency reaches or exceeds a selected rate. The tachometer uses a charge pump technique and offers frequency doubling for low ripple, full input protection in two versions (LM2907-8, LM2917-8) and its output swings to ground for a zero frequency input. The op amp/comparator is fully compatible with the tachometer and has a floating transistor as its output. This feature allows either a ground or supply referred load of up to 50mA. The collector may be taken above VCC up to a maximum VCE of 28V. The two basic configurations offered include a 8-pin device with an input and an internal connection between the tachometer output and the op amp non-inverting input. This version is well suited for single speed or frequency switching or fully buffered frequency to voltage conversion applications.
- Ground referenced tachometer input interfaces directly with variable reluctance magnetic pickups
- Op amp/comparator has floating transistor output
- Frequency doubling for low ripple
- Tachometer has built-in hysteresis with either differential input or ground referenced input
- Built-in zener on LM2917
- ±0.3% Linearity typical
- Ground referenced tachometer is fully protected from damage due to swings above VCC & below ground
Applications
Automotive, Motor Drive & Control, Power Management
Product Information
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- :
- 5kHz
- :
- -
- :
- 0.3%
- :
- 0V to 28V
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- DIP
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- 14Pins
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- -
- :
- MSL 1 - Unlimited
Technical Documents (1)
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