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| 型号： | A4980KLPTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 6/44页 |
| 文件大小： | 0K |
| 描述： | IC STEPPER DVR PROGR 28-TSSOP |
| 标准包装： | 1 |
| 应用： | 步进电机驱动器 |
| 输出数： | 1 |
| 电流 - 输出： | ±1.4A |
| 电压 - 负载： | 0 V ~ 50 V |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 150°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： | 标准包装 |
| 其它名称： | 620-1461-6 |
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A4980
Automotive, Programmable Stepper Driver
ELECTRICAL CHARACTERISTICS 1,2 (continued) Valid at T J = –40°C to 150°C, V BB = 6 to 28 V, V DD = 3.3 V; unless otherwise noted
Characteristics
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
Diagnostics and Protection
VBB Overvoltage Threshold
VBB Overvoltage Hysteresis
VBB Undervoltage Threshold
VBB Undervoltage Hysteresis
VREG Undervoltage Threshold – High
V BBOV
V BBOVHys
V BBUV
V BBHys
V REGUVH
V BB r i s i n g
V BB f a l l i n g
V REG f a l l i n g
3 2
2
5 . 2
500
4 . 6
3 4
–
5 . 5
760
4 . 8
3 6
4
5 . 8
–
4 . 9 5
V
V
V
mV
V
VREG Undervoltage Hysteresis – High V RGUVHHys
250
370
–
mV
VREG Undervoltage Threshold – Low
VREG Undervoltage Hysteresis – Low
VDD Undervoltage Threshold
VDD Undervoltage Hysteresis
O S C T i m e o u t
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 REGUVL
V RGUVLHys
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 REG f a l l i n g
V DD f a l l i n g
B i t 1 3 = 1
Sampled after t SCT
Active during t SCT
Sampled after t SCT
D e f a u l t F a u l t D e l a y
V REF = 2 V , M x 0 = M x 1 = 1
Temperature output selected on DIAG pin
T e m p e r a t u r e d e c r e a s i n g
T e m p e r a t u r e i n c r e a s i n g
T e m p e r a t u r e i n c r e a s i n g
Recovery = T JF – T Jhys
2 . 8 5
100
2 . 6
50
0 . 5
1.4
3
210
1 5 0 0
–
–
–
– 2 0
–
1 2 5
–
1 5 5
–
3
230
–
100
1
2.05
5.5
250
2 0 0 0
–
1440
–3.92
– 1 0
15
1 3 5
15
1 7 0
15
3 . 1 5
–
2 . 9
–
1 . 5
2.65
8
290
2 7 0 0
± 1 0
–
–
0
–
1 4 5
–
–
–
V
mV
V
mV
μ s
A
A
mV
n s
%
mV
mV/°C
o C
oC
o C
oC
o C
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 (6 to 28 V). Outputs not operational above V
below V REGUVL .
4 Assumes 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 trip (actual) – I trip (target)] / 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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