A3958SB

更新时间： 2024-02-26 22:39:12

品牌	Logo	应用领域
急速微 - ALLEGRO		驱动器电机
页数	文件大小	规格书
12页	177K
描述
DMOS FULL-BRIDGE PWM MOTOR DRIVER

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数据手册

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A3958SB 数据手册

3958

DMOS FULL-BRIDGE

PWM MOTOR DRIVER

ELECTRICAL CHARACTERISTICS at T_A= +25°C, V_BB= 50 V, V_DD= 5.0 V, V_SENSE= 0.5 V,

f_PWM< 50 kHz (unless noted otherwise)

Limits

Characteristics

Symbol Test Conditions

Min. Typ. Max. Units

Output Drivers

Load Supply Voltage Range

V_BB

Operating

–

During sleep mode

V_OUT= V_BB

Output Leakage Current

Output On Resistance

Body Diode Forward Voltage

Load Supply Current

I_DSS

<1.0 20

<-1.0 -20

270 300

µA

mΩ

V_OUT= 0 V

r_DS(on)Source driver, I_OUT= -2 A

Sink driver, I_OUT= 2 A

V_F

Source diode, I_F= -2 A

Sink diode, I_F= 2 A

f_PWM< 50 kHz

1.2

4.0

2.0

–

1.6

7.0

5.0

I_BB

µA

Charge pump on, outputs disabled

Sleep Mode

Control Logic

Logic Supply Voltage Range

Logic Input Voltage

V_DD

V_IN(1)

V_IN(0)

I_IN(1)

I_IN(0)

I_IN(1)

I_IN(0)

f_OSC

Operating

4.5

2.0

–

5.0

–

5.5

–

0.8

Logic Input Current

(all inputs except ENABLE)

V_IN= 2.0 V

V_IN= 0.8 V

V_IN= 2.0 V

V_IN= 0.8 V

Operating

–

<1.0 20

<-2.0 -20

µA

MHz

–

ENABLE Input Current

–

100

–

OSC input frequency

OSC input duty cycle

OSC input hysteresis

Input Hysterisis

2.9

200

0.0

–

6.1

dc_OSCOperating

–

Operating

–

400

100

2.6

0.5

5.0

All digital inputs except OSC

Operating

–

Reference Input Volt. Range

Reference Input Current

Comparator Input Offset Volt.

V_REF

I_REF

V_IO

–

V_REF= 2.5 V

–

µA

V_REF= 0 V

–

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