Integrated current sensor

FSD7616-C series Current Sensor Ic Intergrated current sensor

The FSD7616-C series on-chip current sensor is based on the principle of electromagnetic induction, using the tunnel reluctance (TMR) design with high sensitivity and high signal-to-noise ratio, and its internal conditioning circuit can accurately measure current signals in the form of DC, AC and pulse under the condition of electrical isolation of the primary secondary side.

Description

Advantages

Parameters

Selection

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产品特性/Product characteristics  

 16-pin SOPW 封装/16-pin SOPW package

 精度高/High precision

 低噪声/Low noise

频带宽,响应快/Wide frequency band, fast response

优秀的温度稳定性/Excellent temperature stability

符合 RoHS & REACH/RoHS & REACH compliant

 

典型应用/Typical application

 变频器电流检测/Inverter current detection

 电源监控/Power monitoring

 电机驱动/Motor drive

 光伏逆变器/Photovoltaic inverter

 过流保护/Overcurrent protection


电气参数/Electrical parameter

 

参数

Parameter

符号

Symbol

条件

Conditions

最小值

Minimum value

典型值

Typical value

最大值

Maximum value

单位

Unit

供电电压

Supply voltage

 

VCC

FSD7616-XXXC3BFB

3

3.3

3.6

 

V

FSD7616-XXXC5BFB

4.5

5

5.5

零点偏置电压

Zero bias voltage

 

VOFF

IP  = 0, VCC  = 3.3 V,

FSD7616-XXXC3BFB

-

1.65

-

 

V

IP  = 0, VCC  = 5 V,

FSD7616-XXXC5BFB

-

2.5

-

 

输出饱和电压

Output saturation voltage

VOL

-

0.2

-

-

 

V

VOH

-

-

-

VCC - 0.2

电流消耗

Current consumption

 

IC

VCC  = 3.3 V

-

-

6

 

mA

VCC  = 5 V

-

-

6

上电时间

Power-on time

tON

 VCC  ≥ 2.5V  VOUT  达到稳定水平

Stable level from VCC ≥ 2.5V to VOUT

-

200

-

μs

原边导体电阻

Primary side conductor resistance

RIN

TA = 25°C

-

0.95

-

输出电阻负载

Output resistance load

RL

VOUT   GND 之间

Between VOUT and GND

1

10

-

输出电容负载

Output capacitance load

CL

VOUT   GND 之间

Between VOUT and GND

-

-

10

nF

输出拉电流

Output pull current

 

IOUT(SOURCE)

VCC  = 3.3 V, VOUT  短路到 GND

VCC = 3.3V, VOUT shorted to GND

-

43

-

 

mA

VCC  = 5 V, VOUT  短路到 GND

VCC = 5 V, VOUT shorted to GND

-

45

-

输出灌电流

Output filling current

 

IOUT(SINK)

VCC  = 3.3 V, VOUT  短路到 VCC

VCC = 3.3V, VOUT shorted to VCC

-

43

-

 

mA

VCC  = 5 V, VOUT  短路到 VCC

VCC = 5 V, VOUT shorted to VCC

-

45

-

VREF  电阻负载

VREF resistance load

RLREF

VREF   GND 之间

Between VREF and GND

10

100

-

VREF  电容负载

VREF capacitive load

CLREF

VREF   GND 之间

Between VREF and GND

-

1

10

nF

 

VREF 拉电流

VREF pull current

 

IREF(SOURCE)

VCC  = 3.3 V, VREF  短路到 GND

VCC = 3.3V, VREF short-circuited to GND

-

3.7

-

 

mA

VCC  = 5 V, VREF  短路到 GND

VCC = 5 V, VREF short-circuited to GND

-

8.7

-

 

VREF 灌电流

VREF perfusion current

 

IREF(SINK)

VCC  = 3.3 V, VREF  短路到 VCC

VCC = 3.3V, VREF short circuit to VCC

-

0.125

-

 

mA

VCC  = 5 V, VREF  短路到 VCC

VCC = 5 V, VREF short circuit to VCC

-

0.135

-

电源抑制比

Power supply rejection ratio

PSRR

DC~1kHz, 100mV pk-pk ripple aroud VCC  = 5 V, IP  = 0

 

-

-40

 

-

dB

共模磁场抑制比

Common-mode magnetic field rejection ratio

CMFRR

均匀外磁场

Uniform external magnetic field

-

-40

-

dB

上升时间

Rise time

trise

TA = 25 °C, lP  = IPM(max)

-

0.5

-

μs

延迟时间

Delay time

tD

TA = 25 °C, lP  = IPM(max)

-

0.4

-

μs

响应时间

Response time

tR

TA = 25 °C, lP  = IPM(max)

-

0.8

-

μs

带宽bandwidth

BW

IP  = 10 A, 幅值衰减至 -3dB

IP = 10A, amplitude attenuation to -3dB

-

600

-

kHz


 
功能框图/Functional block diagram


PCB 推荐布局


使用说明/Instructions

1)  错误接线可能导致传感器损坏。

Incorrect cables may damage the sensor.

2) 产品供电电压 VCC需要满足规格要求,过低会导致产品无法准确输出,过高则会导致损坏。

The product power supply voltage VCC must meet specifications. If the voltage is too low, the product cannot be accurately output. If the voltage is too high, the product may be damaged.

3)  产品输出 VOUT GND之间可根据实际需求增设 RC 滤波环节,以调整产品输出频率特性The RC filtering link between product output VOUT and GND can be added according to actual requirements to adjust product output frequency characteristics.

4) 可根据客户需求定制传感器,包括供电电压、测量电流范围、引脚定义等。

Sensors can be customized according to customer requirements, including supply voltage, measurement current range, pin definition, and more.


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