参数资料
型号: A3981KLPTR-T
厂商: Allegro Microsystems Inc
文件页数: 4/43页
文件大小: 0K
描述: IC MOTOR DVR MICROSTEP 28-TSSOP
标准包装: 1
系列: *
应用: *
输出数: *
电流 - 输出: *
电压 - 负载: *
电源电压: *
工作温度: *
安装类型: 表面贴装
封装/外壳: 28-SOIC(0.173",4.40mm 宽)裸露焊盘
供应商设备封装: 28-TSSOP 裸露焊盘
包装: 标准包装
其它名称: 620-1458-6
A3981
Automotive, Programmable Stepper Driver
ELECTRICAL CHARACTERISTICS 1,2 Valid at T J = –40°C to 150°C, V BB = 7 to 28 V, V DD = 3 to 5.5 V; unless otherwise noted
Characteristics
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
Supplies
Load Supply Voltage Range 3
Load Supply Quiescent Current
Logic Supply Voltage Range
Logic Supply Quiescent Current
Charge Pump Voltage
Internal Regulator Voltage
Internal Regulator Dropout Voltage
V BB
I BBQ
V DD
I DDQ
V CP
V REG
V REGDO
Functional
Outputs Driving
ENABLE = 0
Sleep mode
ENABLE = 0
ENABLE=0, V DD > 5 V
Sleep mode, V DD = 3.3 V
Sleep mode, V DD = 5 V
With repect 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
0
7
3
1
4
6.7
7.2
100
50
V BBOV
4
10
5.5
5
5.5
15
25
200
V
V
mA
μ A
V
mA
mA
μ A
μ A
V
V
mV
Motor Bridge Output
V BB = 13.5 V, I OUT = –1 A, T J = 25°C
500
600
m Ω
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 = 13.5 V, I OUT = –1 A, T J = 150°C
V BB = 7 V, I OUT = –1 A, T J = 25°C
I F = 1 A
V BB = 13.5 V, I OUT = 1 A, T J = 25°C
V BB = 13.5 V, I OUT = 1 A, T J = 150°C
V BB = 7 V, I OUT = 1 A, T J = 25°C
I F = –1 A
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
900
625
500
900
625
–65
–120
<1.0
<1.0
1100
750
1.4
600
1100
750
1.4
20
m Ω
m Ω
V
m Ω
m Ω
m Ω
V
μ A
μ A
μ A
μ A
Current Control
Internal Oscillator Frequency
External Oscillator Frequency Range
Blank Time 4
f OSC
f EXT
t BLANK
OSC = AGND
51 k Ω from OSC to VDD
Default Blank-Time
3.2
3.6
3
4
1500
4.8
4.4
5
MHz
MHz
MHz
ns
Off-Time (In Fixed Off-Time
Mode) 4
t OFF
Default Off-Time
44
μ s
PWM Frequency (In Fixed Frequency
Mode) 4
f PWM
Default PWM Frequency
16.7
kHz
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
4
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