LM2917N

LM2917N, Frequency to Voltage Converter, 14-DIP, 28V, 25mA, National Semiconductor

Rated 5 Rating 5 | reviews | Write a review

Price:: US $0.20~1.60 / piece [Get Latest Price]

Reference price:

Qty (lots)	Price/lot
	US $0.20~1.60

PartNumber:: LM2917N

Brand:: National Semiconductor - NS | Pack: DIP | D/C: 12+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

Quantity:: piece

Total Price:: US $0

Place Order via Escrow Service

Sold By

Ms. Ella's store

(Hong Kong)

add to my favourite

100% Positive feedback

Detailed seller ratings

Visit Store

Contact Now

Esrcow Service

Place orders confidently and securely via it

Safe payments
Quick and easy transactions
Free service charges

Learn More >>

Previous Next

Products Upload time: 2012-08-08

From Other Seller

Part Number:LM2917N
US $0.20 - 1.60
ad7716ap

US $1.13 - 1.13 / Piece
(0) Remove
HEF4051BT

US $0.15 - 1.20 / Piece
(0) Remove
Quantity:

piece

Product Summary

The LM2917N 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 LM2917N 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 50 mA. The collector may be taken above VCC up to a maximum VCE of 28V. The applications of the LM2917N include Over/under speed sensing, Frequency to voltage conversion (tachometer), Speedometers, Breaker point dwell meters, Hand-held tachometer, Speed governors, Cruise control, Automotive door lock control, Clutch control, Horn control, Touch or sound switches.

Parametrics

(1)Supply Voltage: 28V; (2)Supply Current (Zener Options): 25 mA; (3)Collector Voltage: 28V; (4)Differential Input Voltage Tachometer: 28V; Op Amp/Comparator: 28V; (5)Input Voltage Range Tachometer: 0.0V to +28V; Op Amp/Comparator: 0.0V to +28V; (6)Power Dissipation: 1580 mW; (7)Operating Temperature Range: -40℃ to +85℃; (8)Storage Temperature Range: -65℃ to +150℃; (9)Dual-In-Line Package Soldering (10 seconds): 260℃; (10)Small Outline Package, Vapor Phase (60 seconds): 215℃; Infrared (15 seconds): 220℃.

Features

LM2917N features: (1)Ground referenced tachometer input interfaces directly with variable reluctance magnetic pickups; (2)Op amp/comparator has floating transistor output; (3)50 mA sink or source to operate relays, solenoids, meters, or LEDs; (4)Frequency doubling for low ripple; (5)Tachometer has built-in hysteresis with either differential input or ground referenced input; (6)Built-in zener on LM2917; (7)±0.3% linearity typical; (8)Ground referenced tachometer is fully protected from damage due to swings above VCC and below ground.