LM2917N/NOPB Part Information
Details for LM2917N/NOPB by Texas Instruments
Semiconductors - ICs > Data & Signal Conversion > V/F & F/V Converters
Part Description
The LM2907 and LM2917 devices are monolithic frequency-to-voltage converters with a high gain op amp 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 lowripple, full-input protection in two versions (8-pin LM2907 and LM2917), and its output swings to ground for a zero frequency input. The op amp 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 50 mA. The collector may be taken above VCC up to a maximum VCE of 28 V. The two basic configurations offered include an 8-pin device with a ground-referenced tachometer input and an internal connection between the tachometer output and the op amp noninverting input. This version is well suited for single speed or frequency switching or fully buffered frequency-to-voltage conversion applications.
Part Downloads
Download PCB Footprint from Ultra Librarian
Part Features
- 50-mA Sink or Source to Operate Relays, Solenoids, Meters, or LEDs
- Easy to Use; VOUT = fIN u00d7 VCC u00d7 R1 u00d7 C1
- Frequency Doubling For Low Ripple
- Ground Referenced Tachometer Input Interfaces Directly With Variable Reluctance Magnetic Pickups
- Ground-Referenced Tachometer is Fully Protected From Damage Due to Swings Above VCC and Below Ground
- Op Amp Has Floating Transistor Output
- Output Swings to Ground For Zero Frequency Input
- Tachometer Has Built-In Hysteresis With Either Differential Input or Ground Referenced Input
- Zener Regulator on Chip allows Accurate and
- u00b10.3% Linearity (Typical)
Part Specifications
| Frequency | 5kHz |
| Full Scale Range | - |
| Linearity % | 0.3% |
| Supply Voltage Range | 0V to 28V |
| Digital IC Case | DIP |
| No. of Pins | 14Pins |
| Product Range | - |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (27-Jun-2018) |
Alternative Part Descriptions
- Frequency - Voltage Converter LM2917N | RS Components
- FREQUENCY TO VOLTAGE CONV, 0.3%, DIP-14; Frequency:5kHz; Full Scale Range:-; Linearity %:0.3%; Supply Voltage Range:0V to 28V; Digital IC Case:DIP; No. of Pins:14Pins; Product Range:-; MSL:MSL 1 - Unlimited; SVHC:No SVHC RoHS Compliant: Yes | Newark Electronics
- Integrated circuit: f/U converter; Channels: 1; 50mA; 6÷28VDC | Transfer Multisort Elektronik
- Frequency to Voltage Converter for ground or supply referred load up to 50-mA (with zener regulator) | Texas Instruments
- U/F converter IC [Texas Instruments] LM2917N/NOPB U/F converter IC | Distrelec
- LM2917N/NOPB, Frekans-Gerilim Dönüştürücüsü ±1% FSR, 14-Pinli MDIP | RS Components TR
- Convertitore Frequenza tensione LM2917N | RS Components IT