SI85XX-EVB Silicon Laboratories Inc, SI85XX-EVB Datasheet - Page 20

• Manufacturer Part Number: SI85XX-EVB
• Description: BOARD EVAL CURRENT SENSOR 10A
• Manufacturer: Silicon Laboratories Inc

Specifications of SI85XX-EVB

• Sensor Type: Current Sensor
• Sensing Range: 10A
• Interface: Analog
• Voltage - Supply: 2.7 V ~ 5.5 V
• Embedded: No
• Utilized Ic / Part: Si8512
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed
• Other names: 336-1425

Si85xx
3.3.6. Output Over-Range
The Si85xx can be over-ranged by more than 100% with no adverse effects. For instance, if the Si8512 (a 10 A
nominal full-scale device) has a 15 A peak current applied, then the output voltage (OUT) will be 3 V (assuming
VDD = 5 V). If a 10 A peak current is applied, then the output returns to the nominal 2 V output. The head room of
OUT is VDD–1.4 V. Figure 16 illustrates the head room limitation of the Si85xx versus supply.
20
OUT (V)
5
4
3
2
1
0
I (Amps) Percent Nominal Full-Scale Input
Figure 16. Headroom Limitation
50%
Preliminary Rev. 0.21
100%
3.6 V
150%
VDD = 2.7 V
200%
VDD = 5 V
250%