A3958SB-T 查看數據表（PDF） - Allegro MicroSystems

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A3958SB-T

DMOS FULL-BRIDGE PWM MOTOR DRIVER

Allegro MicroSystems 

3958

DMOS FULL-BRIDGE

PWM MOTOR DRIVER

ELECTRICAL CHARACTERISTICS at TA = +25°C, VBB = 50 V, VDD = 5.0 V, VSENSE = 0.5 V,

fPWM < 50 kHz (unless noted otherwise), continued.

Limits

Characteristics

Symbol Test Conditions

Min. Typ. Max.

Control Logic

Buffer Input Offset Volt.

Reference Divider Ratio

VIO

– D14 = High

– 0 ±15

9.9 10 10.2

D14 = Low

4.95 5.0 5.05

Propagation Delay Times

tpd

PWM change to source ON

PWM change to source OFF

– 600 –

– 100 –

PWM change to sink ON

– 600 –

PWM change to sink OFF

– 100 –

Phase change to sink ON

– 600 –

Phase change to sink OFF

– 100 –

Phase change to source ON

– 600 –

Phase change to source OFF

– 100 –

Thermal Shutdown Temp.

Thermal Shutdown Hysteresis

UVLO Enable Threshold

TJ

∆TJ

UVLO

UVLO Hysteresis

∆UVLO

Increasing VDD

– 165 –

– 15 –

3.90 4.2 4.45

0.05 0.10 –

Logic Supply Current

IDD fPWM < 50 kHz

Sleep Mode, Inputs < 0.5 V

– 6.0 10

– – 2.0

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

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

Units

mV

–

–

ns

ns

ns

ns

ns

ns

ns

ns

°C

°C

V

V

mA

mA

115 Northeast Cutoff, Box 15036

4

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

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