A8902CLBA

更新时间： 2024-01-20 05:53:01

品牌	Logo	应用领域
急速微 - ALLEGRO		驱动器电动机控制电机控制器
页数	文件大小	规格书
12页	157K
描述
3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING

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数据手册

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A8902CLBA 数据手册

8902–A

3-PHASE BRUSHLESS DC

MOTOR CONTROLLER/DRIVER

ELECTRICAL CHARACTERISTICS continued

Limits

Typ.

Characteristic

Symbol

I_CWD

V_TL

Test Conditions

Min.

-9.0

0.22

2.25

Max.

-11

0.28

2.75

—

Units

µA

C_WDCurrent

Charging

-10

0.25

2.5

—

C_WDThreshold Voltage

V_TH

Max. FLL Oscillator Frequency

_OUT(MAX)

f_OSC

—

V_DD= 5.0 V, T_A= 25°C

D3 = 0, D4 = 0

MHz

1.0

0.9

0.5

—

1.2

1.0

0.6

250

1.75

1.4

1.1

0.7

—

D3 = 0, D4 = 1

D3 = 1, D4 = 0

D3 = 1, D4 = 1

BRAKE Threshold

V_BRK

I_BRKL

g_m

1.5

—

2.0

—

BRAKE Hysteresis Current

Transconductance Gain

Centertap Resistors

V_BRK= 750 mV

µA

A/V

kΩ

0.42

5.0

-5.0

0.50

0.58

R_CT

—

Back-EMF Hysteresis

_BEMF- V_CTAPat

FCOM Transition

-20

-37

SERIAL PORT TIMING CONDITIONS

CHIP SELECT

CLOCK

DATA

Dwg. WP-019

A. Minimum CHIP SELECT setup time before CLOCK rising edge.......... 100 ns

B. Minimum CHIP SELECT hold time after CLOCK rising edge............... 150 ns

C. Minimum DATA setup time before CLOCK rising edge........................ 150 ns

D. Minimum DATA hold time after CLOCK rising edge............................. 150 ns

E. Minimum CLOCK low time before CHIP SELECT.................................. 50 ns

F. Maximum CLOCK frequency .............................................................. 3.3 MHz

115 Northeast Cutoff, Box 15036

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

1 2 345 6 7...12

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