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| 型号： | A2550KLPTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 4/15页 |
| 文件大小： | 0K |
| 描述： | IC RELAY DRVR AUTO W/REG 16TSSOP |
| 标准包装： | 1 |
| 应用： | 汽车用，继电器驱动器 |
| 输出数： | 3 |
| 电源电压： | 7 V ~ 40 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 供应商设备封装： | 16-TSSOP-EP |
| 包装： | 标准包装 |
| 产品目录页面： | 1141 (CN2011-ZH PDF) |
| 其它名称： | 620-1182-6 |
A2550
Relay Driver with 5 V Regulator
for Automotive Applications
ELECTRICAL CHARACTERISTICS, –40°C ≤ T J ≤ 150°C, V BB within operating limits, unless otherwise noted
Characteristics Symbol Test Conditions Min.
Typ.
Max.
Units
Supply
VBB Operating Voltage 1
VBB Supply Current
V BB
I BBQ
I BB
I BBS
7
All OUTx Off; EN = 5 V, V BB = ENBAT = 14 V –
All OUTx On; EN = 5 V, V BB = ENBAT= 14 V –
Sleep mode, EN = ENBAT = 0 –
–
–
–
–
40
4
5
10
V
mA
mA
μ A
Logic Inputs
ENBAT Input Voltage 2
EN, WDI, and INx Input Voltage
ENBAT, EN, WDI, INx Input Voltage
Hysteresis
ENBAT Input Current 2,3
V ENBAT
V IH
V IL
V Ihys
I ENBAT
HIGH input level 3.5
LOW input level 0
HIGH input level 3.5
LOW input level 0
200
HIGH input level, V BB = V BB(max)
–
HIGH input level, V BB = 14 V –
LOW input level –50
–
–
–
–
–
–
–
–
V BB
1.5
5.5
1.5
–
400
70
10
V
V
V
V
mV
μ A
μ A
μ A
EN Input Current
2
I EN
HIGH input level –
LOW input level –50
–
–
50
10
μ A
μ A
WDI Input Current 2
INx Input Current 2
I WDI
I INx
HIGH input level –
LOW input level –10
HIGH input level –
LOW input level –10
–
–
–
–
50
10
50
10
μ A
μ A
μ A
μ A
Drivers
Propagation Delays
t p(ON)
t p(OFF)
INx change to unloaded output change –
INx change to unloaded output change –
I OUTx = 250 mA, V BB = 14 V –
1
0.5
–
2
1
5
μ s
μ s
Ω
Driver On-Resistance R DS(on)
Driver Leakage Current I DSS
Diode Forward Voltage V F
Output Clamp Voltage V CL
I OUTx = 250 mA, V BB = 9 V –
I OUTx = 250 mA, V BB = 7 V –
V OUTx = 40 V –
I OUTx = –250 mA –
I OUTx = 100 μ A 50
–
–
–
–1.3
–
5.5
6
10
–1.4
60
Ω
Ω
μ A
V
V
Low-Side Driver Overcurrent (O.C.)
Threshold
I OUT(OC)
275
–
500
mA
Blanking Time Before Overcurrent Detect t BLANK
I OUT = 500 mA 2
–
20
μ s
Regulator
Voltage Regulator Output Voltage V REG5
C REG5 ≥ 0.47 μ F (X7R Ceramic, ESR ≤ 0. 5 Ω ),
1 mA ≤ I REG5 ≤ 40 mA
4.9
5.0
5.1
V
Pass Transistor On-Resistance
1
R REG5
I REG5 = 40 mA –
–
55
Ω
Line Regulation Voltage V LNR
Load Regulation Voltage V LDR
I REG5 = 1 mA –
1 mA ≤ I REG5 ≤ 40 mA, V BB = 7 V –
1 mA ≤ I REG5 ≤ 40 mA, V BB ≥ 9 V –
V REG5 = 4.63 V, V BB = 7 V 40
–
–
–
–
20
100
40
150
mV
mV
mV
mA
Current Limit Level 4
I REG5Lim
V REG5 = 4.63 V, V BB ≥ 9 V 65
V REG5 = 0 V 65
–
–
200
200
mA
mA
Under Voltage Lockout Threshold V UVREG5
Under Voltage Lockout Hysteresis V UVREG5hys
V REG5 falling 4.25
V REG5 rising 4.36
–
4.38
4.50
0.12
4.63
4.75
–
V
V
V
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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