SFH 5712-2/3 OSRAM Opto Semiconductors Inc, SFH 5712-2/3 Datasheet - Page 11

• Manufacturer Part Number: SFH 5712-2/3
• Description: LIGHT SENSOR AMBIENT SMD
• Manufacturer: OSRAM Opto Semiconductors Inc

Specifications of SFH 5712-2/3

• Package / Case: 4-SMD, No Leads
• Wavelength: 500nm
• Output Type: I²C™
• Operating Supply Voltage: 2.5 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 15 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 475-2913-2; Q65110A8485

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Figure 3: SFH 5712 averaging and timing
Appendix 2: Digital Interface characteristics
Interface and control is accomplished through a two-wire I²C bus serial interface. The sensor works in
multi-master/multi-slave environment, multiple devices may be connected to the same bus. The device
conforms to I²C interface specification version 3.0 Rev. 03 dated 19 June 2007.
http://www.standardics.nxp.com/support/documents/i2c/pdf/ics.bus.specification.pdf
The device implements the I²C write protocol as well as the I²C read (combined mode) protocol. In block
read mode (as slave) the device will transmit registers in a cyclic manner until master issues a stop con-
dition. E.g. if host uses block read and starts from register Ch, slave will return the following sequence
of register values:
until host issues a stop condition.
The address counter always increases the register address after output of register content. This is also
valid, if the device is powered down (stand-by mode) between readings.
2010-03-31
Ch, Dh, 0h, Ah, Bh, Ch, Dh, 0h,....
V
Output
actualisation
ACTIVE
STAND-BY
dd off
Operation mode
Delay time until sensor
can be addressed
typ. 40 µs
t
on
typ. 1 ms
max. 1.5 ms
t
1
upd
st
measurement
typ. 45 ms
max. 65 ms
Avg. of 8 measurements
typ. 92 ms
max. 125 ms
Avg. of 16 measurements
11
typ. 186 ms
max. 250 ms
Avg. of 32 measurements
No additional avg.
values in between
for following readings
typ. 565 ms
max. 750 ms
Avg. of
32 measurements
2
nd
OHF04371
SFH 5712
t