参数资料
型号: A3980KLP
厂商: Allegro Microsystems Inc
文件页数: 6/19页
文件大小: 0K
描述: IC DRIVER MICROSTEPPING 28-TSSOP
标准包装: 50
应用: 步进电机驱动器
输出数: 1
电流 - 输出: ± 1A
电压 - 负载: 7 V ~ 50 V
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 125°C
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: 管件
A3980
Automotive DMOS Microstepping Driver
with Translator
ELECTRICAL CHARACTERISTICS ( continued ) at T J = –40°C to +150oC, V BB = 14 V, V DD = 3.0 to 5.5 V (unless otherwise noted)
Characteristics
Symbol
Test Conditions
Min.
Typ. 1
Max.
Units
Current Control
Blank Time
Fixed Off Time
Mixed Decay Trip Points
Crossover Dead Time
Recommended Reference Input Voltage
t BLANK
t OFF
PFD H
PFD L
t DT
V REF
R T = 56 K , C T = 680 pF
R T = 56 K , C T = 680 pF
700
30
100
0.8
950
38
0.60 V DD
0.21 V DD
475
1200
46
800
4
ns
μ s
V
ns
V
Reference Input
Current 2
I REF
–3
0
3
μ A
Current Trip-Level Error 3
err I
2 V < V REF < 4 V, %I TripMAX = 38%
2 V < V REF < 4 V, %I TripMAX = 70%
±15
±10
%
Thermal Protection
2 V < V REF < 4 V, %I TripMAX = 100%
±5
Thermal Shutdown
Thermal Shutdown Hysteresis
T SD
T SDH
160
170
15
180
oC
oC
Diagnostics
Max V DS on High-Side Bridge FETs
Max V DS on Low-Side Bridge FETs
V DS Fault Measurement Delay
Minimum Load Current
V BB Overvoltage Lockout
V BB Overvoltage Lockout Hysteresis
V REG Undervoltage Lockout
V DD Enable Threshold
V DD Enable Threshold Hysteresis
V DSHT
V DSLT
t SCT
I OC
V OVB
V OVBH
V UVR
V UVD
V UVDH
Sampled after t BLANK + t SCT
Sampled after t BLANK + t SCT
w.r.t. I TRIPMAX at Home position
V BB rising
V REG falling
V DD rising
32
2
5.3
2.45
50
1.5
1.5
700
35
34
5.7
2.7
100
36
4
6.0
2.95
V
V
ns
%
V
V
V
V
mV
× I TripMAX .
1 Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions. Performance may vary
for individual units, within the speci ? ed maximum and minimum limits.
2 Negative current is de ? ned as coming out of (sourcing from) the speci ? ed device pin.
3 err I = (I Trip – I Prog ) ? I Prog , where I Prog = %I TripMAX
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
5
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