参数资料
型号: A3968SLB-T
厂商: Allegro Microsystems Inc
文件页数: 5/8页
文件大小: 0K
描述: IC MOTOR DRIVER PWM DUAL 16SOIC
标准包装: 47
应用: PWM 电机驱动器
输出数: 2
电流 - 输出: ±650mA
电压 - 负载: 4.75 V ~ 30 V
电源电压: 4.75 V ~ 5.5 V
工作温度: -20°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
供应商设备封装: 16-SOIC W
包装: 管件
A3968
Dual Full-Bridge PWM Motor Driver with Brake
ELECTRICAL CHARACTERISTICS at T A = +25 ° C, V BB = 30 V, V CC = 4.75 V to 5.5 V, V REF = 2 V,
V S = 0 V, 56 k Ω & 680 pF RC to Ground (unless noted otherwise) (cont.)
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Control Logic (continued)
PWM RC Frequency
PWM Propagation Delay Time
Cross-Over Dead Time
f osc
t PWM
t codt
C T = 680 pF, R T = 56 k Ω
Comparator Trip to Source OFF
Cycle Reset to Source ON
1 k Ω Load to 25 V
22.9
0.2
25.4
1.0
0.8
1.8
27.9
1.4
1.2
3.0
kHz
μ s
μ s
μ s
Propagation Delay Times
t pd
I OUT = ± 650 mA, 50% to 90%:
Disable OFF to Source ON
Disable ON to Source OFF
Disable OFF to Sink ON
Disable ON to Sink OFF
Brake Enable to Sink ON
Brake Enable to Source OFF
100
500
200
200
2200
200
ns
ns
ns
ns
ns
ns
Thermal Shutdown Temp.
Thermal Shutdown Hysteresis
T J
Δ T J
165
15
° C
° C
UVLO Enable Threshold
UVLO Hysteresis
Logic Supply Current
V T(UVLO)+
V T(UVLO)hys
I CC(ON)
I CC(OFF)
I CC(BRAKE)
Increasing V CC
Both bridges ON (forward or reverse)
All INPUTs = 2.4 V
All INPUTs = 0.8 V
0.1
4.1
0.6
4.6
50
9.0
95
V
V
mA
mA
mA
NOTES:1. Typical Data is for design information only.
2. Negative current is defined as coming out of (sourcing) the specified device terminal.
2.5
T A = +25 ° C
2.0
SOURCE DRIVER
1.5
1.0
0.5
Typical output saturation voltages showing
Satlington sink-driver operation.
SINK DRIVER
0
200
300
4 0 0
500
600
7 0 0
OUTPUT CURRENT IN MILLIAMPERES
Allegro MicroSystems, LLC
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
5
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