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| 型号： | A2550KLPTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 5/15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, continued –40°C ≤ T J ≤ 150°C, V BB within operating limits, unless otherwise noted
Characteristics Symbol Test Conditions Min. Typ. Max.
Watchdog and Power-On Reset
Units
NPOR Active Voltage V NPOR
NPOR Inactive Leakage Current I NPOR(Off)
I NPOR = 1 mA; V REG5 = 1.5 V; 1.5 V ≤ V BB ≤ 40 V – – 400
V NPOR = 5 V – – 10
mV
μ A
CWD and CPOR Trip Voltage
V TRIP(H)
V TRIP(L)
V TRIP(H) = V REF
– 1.2 –
– 0.2 –
V
V
CPOR Charge Current I POR
2.5 5 7.5
μ A
Power-On Reset Cycle Time 5
t POR
C POR = 0.22 μ F – 44 –
ms
CWD Charge Current I CWD
Thermal Protection
Thermal Shut Down Threshold T TSD
Thermal Shut Down Hysteresis T TSDhys
Charging 2.5 5 7.5
Discharging – 70 –
150 175 –
– 15 –
μ A
μ A
°C
°C
1 See Applications Information section for operation with V BB < 7 V. For V BB > 24 V, thermal constraints limit regulator current.
2 For input and output current specifications, negative current is defined as coming out of (sourcing) the specified device pin.
3 When V ENBAT exceeds V BB it is clamped with a diode. (V ENBAT – V BB ) ≤ 1.2 V at 40 mA.
4 Defined as the maximum current level allowed during excessive load condition.
5 See Applications Information section for calculations. Values guaranteed by design, and depend on capacitor tolerances.
THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information
Characteristic
Thermal Resistance, Junction to Pad
Thermal Resistance, Junction to
Ambient
Maximum Allowable Power Dissipation
Symbol
R θ JP
R θ JA
P D
Test Conditions*
4-layer PCB based on JEDEC standard
2-layer PCB with 2 in. 2 copper both sides
R θ JA = 44 oC/W (estimated), 2-layer PCB with 2.0 in. 2 of 2 oz. copper,
T A = 125°C
R θ JA = 44 oC/W (estimated), 2-layer PCB with 2.0 in. 2 of 2 oz. copper,
T A = 85°C
Value
2
34
44
0.57
1.48
Units
oC/W
oC/W
oC/W
W
W
*Additional thermal data available on the Allegro Web site.
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
5
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