A3909 データシートの表示（PDF） - Allegro MicroSystems

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A3909

Dual Full Bridge Motor Driver

Allegro MicroSystems 

A3909

Dual Full Bridge Motor Driver

ELECTRICAL CHARACTERISTICS* Valid at TA = 25°C; unless otherwise specified

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

VBB Voltage Range

VBB Supply Current

VBB

IBB

Standby Mode

4

–

18

–

4

8

–

<1

10

Total Driver On-Resistance (Sink +

Source)

RDS(on)tot

I = 1 A, TJ = 25°C, VBB = 12 V

I = 1 A, TJ = 25°C, VBB = 4 V

–

1.6

2

–

2.7

3.5

Source Driver On-Resistance

RDS(on)src I = 1 A, TJ = 25°C, VBB = 12 V

–

1.12

–

Sink Driver On-Resistance

RDS(on)snk I = 1 A, TJ = 25°C, VBB = 12 V

–

0.48

–

Input Logic Low Level

VIL(Standby) All inputs low

–

–

0.4

Input Logic Low Level

VIL

–

–

0.8

Input Logic High Level

VIH

2

–

–

Input Hysteresis

VHYS

100

300

500

Logic Input Current

IIN

VIN = 5 V (Pull down = 50 kΩ)

–

100

150

VBB UVLO

VBBUVLO VBB rising

–

3.6

3.95

VBB UVLO Hysteresis

VBBHYS

100

300

500

Standby Timer

tSTB

IN1 = IN2 = IN3 = IN4 < VIL(Standby)

–

1

1.5

Thermal Shutdown Temperature

TJTSD Temperature increasing

150

165

180

Thermal Shutdown Hysteresis

ΔTJ

Recovery = TJTSD – ΔTJ

–

20

–

*Specified limits are tested at a single temperature and assured through operating temperature range by design and characterization.

Unit

V

mA

μA

Ω

Ω

Ω

Ω

V

V

V

mV

μA

V

mV

ms

°C

°C

Allegro MicroSystems, LLC

3

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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