参数资料
型号: A3981KLPTR-T
厂商: Allegro Microsystems Inc
文件页数: 6/43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 (continued) 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
Logic Input And Output – Dynamic Parameters (continued)
Step Low Time
t STPH
1
μ s
Setup Time Control Input Change
to STEP
Hold Time Control Input Change
from STEP
Wake-Up from RESET
t SU
t H
t EN
MS1, MS2, DIR
MS1, MS2, DIR
200
200
1
ns
ns
ms
Diagnostics and Protection
VBB Overvoltage Threshold
VBB Overvoltage Hysteresis
VREG Undervoltage Threshold
VREG Undervoltage Hysteresis
VDD Undervoltage Threshold
VDD Undervoltage Hysteresis
OSC Timeout
High-Side Overcurrent Threshold
High-Side Current Limit
Low-Side Overcurrent Sense Voltage
Overcurrent Fault Delay
Open Load Current Threshold Error
Temperature Voltage Output Offset
Temperature Voltage Output Slope
Cold Temperature Warning Threshold
Cold Temperature Warning Hysteresis
Hot Temperature Warning Threshold
Hot Temperature Warning Hysteresis
Overtemperature Shutdown Threshold
Overtemperature Hysteresis
V BBOV
V BBOVHys
V REGUV
V RGUVHys
V DDUV
V DDUVHys
t WD
I OCH
I LIMH
V OCL
t SCT
E IOC
V TO
A T
T JWC
T JWChys
T JWH
T JWHhys
T JF
T Jhys
V BB rising
V REG falling
V DD falling
Bit 13 = 1
Sampled after t SCT
Active during t SCT
Sampled after t SCT
Default Fault Delay
V REF = 2 V, Mx0 = Mx1 = 1
Temperature output selected on DIAG pin
Temperature decreasing
Temperature increasing
Temperature increasing
Recovery = T JF – T Jhys
32
2
5.1
2.6
50
0.5
1.4
3
210
1500
–20
125
155
34
1
100
1
2.05
5.5
250
2000
1440
–3.92
–10
15
135
15
170
15
36
4
5.4
2.9
1.5
2.65
8
290
2700
±10
0
145
V
V
V
V
V
mV
μ s
A
A
mV
ns
%
mV
mV/°C
oC
oC
oC
oC
oC
oC
1 For
input and output current specifications, negative current is defined as coming out of (sourcing) the specified device pin.
2 All
references to “VBB” apply to VBBA and VBBB.
3 Function is correct but parameters are not guaranteed above or below the general limits (7 to 28 V). Outputs not operational above V
below V REGUVL .
4 Assumes a 4 MHz clock.
BBOV or
5 Current Trip Point Error is the difference between actual current trip point and the target current trip point, referred to maximum full scale (100%)
current: E Itrip = 100 × [I tripActual – I tripTarget ] / I FullScale (%).
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
6
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