参数资料
型号: ACS716KLATR-6BB-NL-T
厂商: Allegro Microsystems Inc
文件页数: 7/22页
文件大小: 0K
描述: IC CURRENT SENSOR 120KHZ 16-SOIC
标准包装: 1,000
电流 - 感应: ±6A
精确度: ±1.6%
灵敏度: 151mV/A
电流 - 电源: 11mA
传感器类型: 霍尔效应
电源电压: 3 V ~ 5.5 V
输出: 2.5V
频率: 120kHz
响应时间: 4µs
电极标记: 双向
工作温度: -40°C ~ 125°C
封装/外壳: 16-SMD
包装: 标准包装
ACS716
120 kHz Bandwidth, High Voltage Isolation
Current Sensor with Integrated Overcurrent Detection
COMMON OPERATING CHARACTERISTICS (continued) Valid at T A = –40°C to 125°C, V CC = 3.3 V, unless otherwise specified
Characteristic Symbol
Test Conditions
Min.
Typ.
Max.
Units
OVERCURRENT CHARACTERISTICS (continued)
Fault Enable (FAULT_EN Pin) Input High
Voltage Threshold
Fault Enable (FAULT_EN Pin) Input
Resistance
V IH
R FEI
0.8 × V CC
1
V
M Ω
Fault Enable (FAULT_EN Pin) Delay 7
t FED
Set FAULT_EN to low, V OC = 0.25 × V CC ,
C OC = 0 F; then run a DC I P exceeding the
corresponding overcurrent threshold; then
reset FAULT_EN from low to high and
15
μ s
measure the delay from the rising edge of
FAULT_EN to the falling edge of ˉFˉ ˉA ˉUˉˉLˉ ˉTˉ
Fault Enable (FAULT_EN Pin) Delay
(Non-Latching versions) 8
t FED(NL)
Set FAULT_EN to low, V OC = 0.25 × V CC ,
C OC = 0 F; then run a DC I P exceeding the
corresponding overcurrent threshold; then
reset FAULT_EN from low to high and
150
ns
measure the delay from the rising edge of
FAULT_EN to the falling edge of ˉFˉ ˉA ˉUˉˉLˉ ˉTˉ
FAULT_EN set to high for a minimum
of 20 μ s before the overcurrent event;
Overcurrent Fault Response Time
t OC
switchpoint set at V OC = 0.25 × V CC ;
apply a current step to I P with amplitude
equal to 1.5 x V OC / Sens;
delay from I P exceeding overcurrent
fault threshold to V ˉFˉ ˉA ˉUˉˉLˉ ˉTˉ < 0.4 V, without
external C OC capacitor
2
μ s
FAULT_EN set to high for a minimum
of 20 μ s before the undercurrent event;
Undercurrent Fault Response Time
(Non-Latching versions)
Overcurrent Fault Reset Delay
Overcurrent Fault Reset Hold Time
Overcurrent Input Pin Resistance
t UC
t OCR
t OCH
R OC
switchpoint set at V OC = 0.25 × V CC ; delay
from I P falling below the overcurrent fault
threshold to V ˉFˉ ˉA ˉUˉˉLˉ ˉTˉ > 0.8 × V CC , without
external C OC capacitor, R PU = 330 k Ω
Time from V FAULTEN < V IL to
V FAULT > 0.8 × V CC , R PU = 330 k Ω
Time from V FAULTEN pin < V IL to reset of
fault latch; see Functional Block Diagram
T A = 25°C, VOC pin to GND
2
3
500
250
μ s
ns
ns
M Ω
VOLTAGE REFERENCE CHARACTERISTIC S
Voltage Reference Output
Voltage Reference Output Load Current
Voltage Reference Output Drift
V ZCR
I ZCR
? V ZCR
T A = 25 °C
(Not a highly accurate reference)
Source current
Sink current
0.48 x V CC
3
50
0.5 × V CC
±10
0.52 x V CC
V
mA
μ A
mV
1 R F(INT) forms an RC circuit via the FILTER pin.
2 This parameter can drift by as much as 0.8% over
the lifetime of this product.
3 This
parameter can drift by as much as 1% over the lifetime of this product.
4 See page 8 on how to set overcurrent fault switchpoint.
5 Switchpoint can be lower at the expense of switchpoint accuracy.
6 This error specification does not include the effect of noise. See the I
fault switchpoint.
NCOMP specification in order to factor in the additional influence of noise on the
7 Fault Enable Delay is designed to avoid false tripping of an Overcurrent (OC) fault at power-up. A 15 μ s (typical) delay will always be needed, every
time FAULT_EN is raised from low to high, before the device is ready for responding to any overcurrent event.
8 During power-up, this delay is 15 μ s in order to avoid false tripping of an Overcurrent (OC) fault.
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
7
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