3966_03 datasheet(4/9 Pages) ALLEGRO

部品番号	3966

部品情報	DUAL FULL-BRIDGE PWM MOTOR DRIVER

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メーカー	ALLEGRO [Allegro MicroSystems]

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3966

DUAL FULL-BRIDGE

PWM MOTOR DRIVER

115 Northeast Cutoff, Box 15036

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

4

PWM RC Frequency

fosc

CT = 680 pF, RT = 56 kΩ

22.9

25.4

27.9

kHz

PWM Propagation Delay Time

tPWM

Comparator Trip to Source OFF

—

1.0

1.4

µs

Cycle Reset to Source ON

—

0.8

1.2

µs

Cross-Over Dead Time

tcodt

1 kΩ

0

.

3

8

.

1

2

.

0

V

5

2

o

t

d

a

o

L

µs

Propagation Delay Times

tpd

IOUT = ±650 mA, 50% to 90%:

ENABLE ON to Source ON

—

100

—

ns

ENABLE OFF to Source OFF

—

500

—

ns

ENABLE ON to Sink ON

—

200

—

ns

ENABLE OFF to Sink OFF

—

200

—

ns

PHASE Change to Sink ON

—

2200

—

ns

PHASE Change to Sink OFF

—

200

—

ns

PHASE Change to Source ON

—

2200

—

ns

PHASE Change to Source OFF

—

200

—

ns

Thermal Shutdown Temp.

TJ

—

165

—

°C

Thermal Shutdown Hysteresis

∆TJ

—

15

—

°C

UVLO Enable Threshold

VT(UVLO)+

Increasing VCC

—

4.1

4.6

V

UVLO Hysteresis

VT(UVLO)hys

0.1

0.6

—

V

Logic Supply Current

ICC(ON)

VENABLE 1 = VENABLE 2 = 0.8 V

—

50

mA

ICC(OFF)

VENABLE 1 = VENABLE 2 = 2.4 V

—

9.0

mA

Limits

s

ti

n

U

.

x

a

M

.

p

y

T

.

n

i

M

s

n

o

it

i

d

n

o

C

t

s

e

T

l

o

b

m

y

S

c

it

s

ir

e

t

c

a

r

a

h

C

ELECTRICAL CHARACTERISTICS at TA = +25°C, VBB = 30 V, VCC = 4.75 V to 5.5 V, VREF = 2 V,

VS = 0 V, 56 kΩ & 680 pF RC to Ground (unless noted otherwise) (cont.)

Control Logic (continued)

NOTES:1. Typical Data is for design information only.

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

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