UCN5829 datasheet(4/12 Pages) ALLEGRO

Part #	UCN5829

Description	9-BIT SERIAL-INPUT, LATCHED SINK DRIVER

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Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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4 / 12 page

5829

9-BIT SERIAL-INPUT,

LATCHED SINK DRIVER

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Chopping Characteristics (TJ = +25°C to +150°C) with Fast Clamp Diodes

Enable Timeout

tEN

REN = 20 kΩ, CEN = 0.01 µF

190

200

210

µs

Chopping Frequency

fch

RC = 20 kΩ, CC = 250 pF

90

100

110

kHz

Duty Cycle Range

dc

ton / ton + toff

15

—

< 50

%

Chop Current Level

ITRIP

VREF = 2.0 V, fch < 100 kHz

0.9

1.0

1.1

A

VREF = 2.8 V, fch < 100 kHz

1.26

1.4

1.54

A

Output Current Control Range

VREF

1.0

—

3.2

V

ITRIP

0.5

—

1.6

A

Delay

td

ITRIP to IOUT(P), TA = +25°C

—

300

500

ns

Chop Inhibit Voltage Range

VREF

4.5

—

VDD + 0.3

V

Negative current is defined as coming out of (sourcing) the specified device terminal.

ELECTRICAL CHARACTERISTICS at TA = +25°C, VDD = 5 V,

in Test Circuit/Typical Application (unless otherwise noted).

Limits

EXTERNAL HIGH-SIDE DRIVERS

CHARGE-PUMP CIRCUITRY

FOR SINGLE-SUPPLY OPERATION

PMOS

NMOS

V

+ 10 V

BB

VBB

Dwg. EP-027

VBB

Dwg. EP-028

VBB

10 V

0.022

µF

Dwg. EP-026

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