Datasheet > A5977GLPTR-T

A5977GLPTR-T

更新时间： 2022-02-26 14:09:16

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急速微 - ALLEGRO		/
页数	文件大小	规格书
16页	622K
描述
Microstepping DMOS Driver with Translator

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A5977GLPTR-T 数据手册

A5977

Microstepping DMOS Driver with Translator

ELECTRICAL CHARACTERISTICS¹: Valid at T_A= 25°C, V_BB= 40 V, unless otherwise noted

Characteristics

Symbol

Test Conditions

Min.

Typ.²

–

Max.

Units

Operating

Load Supply Voltage Range

V_BB

During sleep mode

–

V_OUT= V_BB

–

0.22

0.15

µA

Output Leakage Current

Output On-Resistance

I_DSS

R_DS(On)

V_F

V_OUT= 0 V

–

–20

0.30

0.24

1.4

Source driver, I_OUT= –2.5 A, T_J= 25°C

Sink driver, I_OUT= 2.5 A, T_J= 25°C

Source diode, I_F= –2.5 A

Source diode, I_F= 2.5 A

f_PWM< 50 kHz, duty cycle = 50%

Operating, outputs disabled

Sleep mode

–

Body Diode Forward Voltage

–

μA

VBB Supply Current

VDD Supply Current

I_BB

–

f_PWM< 50 kHz, duty cycle = 50%

Operating, outputs disabled

Sleep mode

–

I_DD

–

Control Logic

Logic Supply Voltage Range

V_DD

V_IN(1)

V_IN(0)

I_IN(1)

I_IN(0)

f_STEP

V_OH

Operating

–

5.5

–

0.7×V_DD

Logic Input Voltage

–

0.3×V_DD

V_IN= 0.7×V_DD

V_IN= 0.3×V_DD

–20

–

µA

kHz

Logic Input Current

–20

Maximum Step Frequency³

HOMEn Output Voltage

500

–

I_OH= –200 µA

0.7×V_DD

–

V_OL

I_OL= 200 µA

–

700

–

0.3×V_DD

1200

Blank Time

t_BLANK

t_OFF

V_REFx

I_REF

R_T= 56 kΩ, C_T= 680 pF

Operating

950

–

μs

Fixed Off-Time

Reference Input Voltage Range

Reference Input Current

V_DD

±3

–

μA

V_REF= 2 V, phase current = 100.0%

V_REF= 2 V, phase current = 70.7%

V_REF= 2 V, phase current = 38.3%

–

±5

Gain (G_m) Error⁴

E_G

–

±5

–

±10

800

120

Crossover Dead Time

t_DT

t_SR

100

475

–

Motor Output Slew Time

10% to 90% rising; 90% to 10% falling

Continued on the next page...

Allegro MicroSystems, LLC

115 Northeast Cutoff, Box 15036

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

www.allegromicro.com

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