参数资料
型号: APEK4979GLP-01-T-DK
厂商: Allegro Microsystems Inc
文件页数: 5/44页
文件大小: 0K
描述: BOARD EVAL MOTOR CONTROL A4979
标准包装: 1
主要目的: 电源管理,电机控制,步进控制器
嵌入式:
已用 IC / 零件: A4979
已供物品:
其它名称: 620-1468
A4979
Microstepping Programmable Stepper Motor Driver
With Stall Detect and Short Circuit Protection
ELECTRICAL CHARACTERISTICS 1,2 Valid at T A = 25°C, V BB = 50 V, V DD = 3.3 V; unless otherwise noted
Characteristics
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
Supplies
Load Supply Voltage Range
V BB
7
50
V
Load Supply Quiescent Current
Logic Supply Voltage Range
Logic Supply Quiescent Current
Charge Pump Voltage
Internal Regulator Voltage
Internal Regulator Dropout Voltage
I BBQ
V DD
I DDQ
V CP
V REG
V REGDO
ENABLE = 0
Sleep mode, V BB = 40 V
ENABLE = 0
Sleep mode
With respect to VBB, V BB >7.5 V, ENABLE = 0,
RESETn = 1
ENABLE = 0, RESETn = 1, V BB > 7.5 V
ENABLE = 0, RESETn = 1, V BB > 5.6 V
3
1
4
6.7
7.2
100
4
10
5.5
5
15
200
mA
μ A
V
mA
μ A
V
V
mV
Motor Bridge Output
High-Side On-Resistance
High-Side Body Diode Forward
Voltage
Low-Side On-Resistance
Low-Side Body Diode Forward
Voltage
Output Leakage Current
R ONH
V FH
R ONL
V FL
I LO
V BB = 50 V, I OUT = –1.5 A, T J = 25°C
V BB = 7 V, I OUT = –1.5 A, T J = 25°C
V BB = 50 V, I OUT = 1.5 A, T J = 25°C
V BB = 7 V, I OUT = 1.5 A, T J = 25°C
ENABLE = 0, RESETn = 1, V O = V BB
ENABLE = 0, RESETn = 1, V O = 0 V
ENABLE = 0, RESETn = 0, V O = V BB
ENABLE = 0, RESETn = 0, V O = 0 V
–120
–200
–20
500
625
500
625
–65
–120
<1.0
<1.0
650
800
1.4
650
800
1.4
20
m Ω
m Ω
V
m Ω
m Ω
V
μ A
μ A
μ A
μ A
Current Control
Internal Oscillator Frequency
External Oscillator Frequency Range
Blank Time 3
Off-Time (In Fixed Off-Time Mode) 3
PWM Frequency (In Fixed Frequency
Mode) 3
Fast Decay Time 3
Reference Input Voltage
Internal Reference Voltage
f OSC
f EXT
t BLANK
t OFF
f PWM
t FAST
V REF
V REFint
OSC = AGND
51 k Ω from OSC to VDD
Default Blank-Time
Default Off-Time
Default PWM Frequency
Default Fast Decay Time
REF tied to VDD
3.2
3.6
3
0.8
1.1
4
1500
24
31.3
8
1.2
4.8
4.4
5
2
1.3
MHz
MHz
MHz
ns
μ s
kHz
μ s
V
V
Continued on the next page…
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
5
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