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ZHCSET4B December 2015 – April 2024 LDC0851

PRODUCTION DATA

5.8 Typical Characteristics

Common test conditions (unless specified otherwise): V_DD = 3.3 V, Sense coil diameter = reference coil diameter, Target: Aluminum, 1.5 mm thickness, Target area / Coil area > 100%

See Basic Operation Mode	ADJ Code = 0
Coil diameter = 10 mm

Figure 5-1 Switching Distance vs. LREF Target Distance

See Basic Operation Mode	ADJ Code = 0
Coil diameter = 6 mm, 15 mm, 29 mm

Figure 5-3 Normalized Switching Distance vs. LREF Target Distance

LSENSE frequency (f_s) varied

LREF frequency (f_r) fixed

Figure 5-5 Frequency vs. Distance

I_{SENSOR_MAX} = 4.35 mA

Specified for closest target proximity or minimum inductance in the application.

Figure 5-7 Sensor Design Space for V_DD = 1.8 V

C_TOTAL = 100 pF

Figure 5-9 I_SENSOR vs. V_DD

Figure 5-11 I_STATIC vs. V_DD

See Equation 4

Figure 5-13 I_SENSOR vs. ƒ_SENSOR

See Threshold Adjust Mode	No reference target
Coil diameter = 10 mm

Figure 5-2 Switching Distance vs. ADJ code

See Threshold Adjust Mode	No reference target
Coil diameter = 6 mm, 15 mm, 29 mm

Figure 5-4 Normalized Switching Distance vs. ADJ Code

LSENSE inductance (L_s) varied

LREF inductance (L_r) fixed

Figure 5-6 Inductance vs. Distance

I_{SENSOR_MAX} = 6 mA

Specified for closest target proximity or minimum inductance in the application.

Figure 5-8 Sensor Design Space for V_DD = 3.3 V

C_BOARD = 12 pF

ƒ_SENSOR = 30 MHz

Figure 5-10 I_DYN vs. V_DD

Figure 5-12 I_SD vs. V_DD

Normalized to frequency at V_DD = 3.6 V

Figure 5-14 ƒ_SENSOR Shift vs. V_DD