Datasheet > B58601E3214B646

B58601E3214B646

更新时间： 2024-03-03 10:09:45

品牌	Logo	应用领域
东电化 - TDK		/
页数	文件大小	规格书
10页	535K
描述
Pressure sensor die, low pressure, open bridge

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B58601E3214B646 数据手册

Pressure sensors

C32 series

B58601E32**B615/…B646

Gauge low pressure sensor die C32/1 (open bridge)

13)

Sensitivity S

The sensitivity is defined for a bridge voltage power supply V_DD= 5 V. It can be determined by the formula:

(

)

V_ꢍutp_{ꢎ ꢏꢐꢑ}− V_ꢍ

S =

p_{ꢎ ꢏꢐꢑ}

This parameter is tested for process control on samples, mounted in TDK Sensors standard transducer package.

14)

Nonlinearity L

This parameter may be influenced by assembly.

The nonlinearity is measured using the endpoint method. Assuming a characteristic, this can be approximated

by a polynomial of second order, where the maximum is at p_x= p_rmax/2. The nonlinearity is defined at p_x= p_rmax/2,

using the equation:

( )

V_ꢍutp_ꢑ− V_ꢍ

p_ꢑ

L =

−

(

)

V_ꢍutp_{ꢎ ꢏꢐꢑ}− V_ꢍp_{ꢎ ꢏꢐꢑ}

This parameter is tested for process control on samples, mounted in TDK Sensors standard transducer package.

15)

Temperature coefficient of sensitivity _Sand _S:

These parameters may be influenced by assembly.

The temperature coefficients of sensitivity are tested for design verification on samples, mounted in TDK Sensors

standard transducer package over the temperature range T_a,minto T _a,maxwith T_R= 25 °C.

The temperature coefficients of first and second order are defined with the polynomial:

( )

)^ꢁ]

S T = S T = 25°C 1 + α_ꢒT − 25°C + β_ꢒT − 25°C

(

)[

(

)

(

The coefficients _Sand _Sare calculated using the three measurement points of S(T) at T_a,min, T_Rand T_a,max

Pressure hysteresis p_Hys

16)

The pressure hysteresis is the difference between output voltages at constant pressure and constant temperature while

applying a pressure cycle with pressure steps of p_{r, min}, p₁, p₂, p₃, p_r,max, p₃, p₂, p₁, p_{r, min}

( )

V_ꢍut,ꢁp_k− V_ꢍut,ꢃp_k

p_Hys

With k = min, 1, 2, 3, max. The pressure steps are: p_rmin= 0, p₁= 0.25·p_r,max, p₂= 0.5·p_r,max, p₃= 0.75·p_{r, max}, p_r,max

This parameter is tested for design verification on samples, mounted in TDK Sensors standard transducer package.

Since the p_Hysdepends on several assembling conditions, this parameter has to be verified by the customer with his

assembling possibilities.

17)

Reliability data

For long-term stability of offset voltage LTSV₀please refer to the defined TDK Sensors standard AS100001 in chapter

“Long term stability parameter” on the internet. Since the LTSV₀depends on several assembling conditions, this

parameter has to be verified by the customer with his assembling possibilities.

TPS PRS SD PD

2021-03-08

Please read Cautions and warnings and

Page 6 of 10

Important notes at the end of this document.

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