LM3813 datasheet(7/14 Pages) NSC

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LM3813 Datasheet(PDF) 7 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.

Part #	LM3813

Description	Precision Current Gauge IC with Ultra Low Loss Sense Element and PWM Output

PDF	14 Pages

Scroll/Zoom	100%

Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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7 / 14 page

Typical Performance Characteristics Supply bypass capacitor is 0.1 µF and filter capacitor is

0.1 µF. (Continued)

Typical Application Circuits In the application circuits, the 0.1 µF ceramic capacitor between pins 1 and 8

is used for bypassing, and the 0.1 µF ceramic capacitor between pins 3 and 4 is used for filtering. Shutdown (SD) is tied to

DD through a 10 kΩ resistor.

Error vs Current (LM3812-1.0 and LM3813-1.0)

(Note 10)

DS100122-27

Error vs Current (LM3812-7.0 and LM3813-7.0)

(Note 10)

DS100122-31

Note 10: These curves represent a statistical average such that the noise is insignificant.

DS100122-5

FIGURE 1. High Side Sense

DS100122-6

FIGURE 2. Low Side Sense

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