LMV331M7X datasheet(9/32 Pages) TI

部件名	LMV331M7X

功能描述	LMV331-N Single / LMV393-N Dual / LMV339-N Quad General Purpose, Low Voltage, Tiny Pack Comparators

PDF	32 Pages

Scroll/Zoom	100%

制造商	TI [Texas Instruments]

网页	http://www.ti.com

标志

9 / 32 page

LMV331-N, LMV339-N, LMV393-N

www.ti.com

SNOS018G – AUGUST 1999 – REVISED FEBRUARY 2013

The total hysteresis provided by the network is defined as

ΔVa = Va1 - Va2

(3)

To assure that the comparator will always switch fully to VCC and not be pulled down by the load the resistors

values should be chosen as follow:

RPULL-UP << RLOAD

(4)

and R1 > RPULL-UP.

(5)

Figure 13. Inverting Comparator with Hysteresis

NON-INVERTING COMPARATOR WITH HYSTERESIS

Non inverting comparator with hysteresis requires a two resistor network, and a voltage reference (Vref) at the

inverting input. When Vin is low, the output is also low. For the output to switch from low to high, Vin must rise up

to Vin1 where Vin1 is calculated by

(6)

When Vin is high, the output is also high, to make the comparator switch back to it's low state, Vin must equal Vref

before VA will again equal Vref. Vin can be calculated by:

(7)

The hysteresis of this circuit is the difference between Vin1 and Vin2.

ΔVin = VCCR1/R2

(8)

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Product Folder Links: LMV331-N LMV339-N LMV393-N

LMV331M7X 数据表(PDF) 9 Page - Texas Instruments