VM6101 Datasheet, PDF (1/17 Pages) STMicroelectronics – I²C color light sensor

VM6101
I²C color light sensor
Features
■ 4-channel Y+RGB photosensor, with
integrated infrared filter
■ Wide dynamic range light to frequency
converters
■ 2-wire serial interface, I²C and SMBus
compatible
■ PWM output for direct LCD backlight control
■ Comparator logic with two programmable
thresholds and hysteresis function
■ Power down input
■ 3.0 V to 3.6 V supply range
■ Built-in clock generator, precision voltage and
current references
■ Low profile Pb-free package (RoHS compliant)
Applications
■ General purpose color measurement
■ Automatic backlighting control
■ Panel lighting
■ White goods
Pinout
VM6101V008
8-lead MLPD
Top view
SDA 1
SCL 2
INT 3
GND ⁴
8 TEST
RB
7 AMUX
YG
6 PD
5 VDD
y
Optical center location: (+70, +35) µm
x
relative to package center.
Sensitive area: 220 x 240 µm
Description
The VM6101 is a high dynamic range 4-channel
CMOS photosensor suitable for ambient light
sensing as well as color light sensing. Light
intensity is converted linearly to a variable
frequency signal. The signal period is readable
through the two-wire serial interface.
A direct PWM output is provided for power saving
LCD backlighting applications, where backlighting
intensity adapts to the ambient light level.
Alternatively, this output can be used as an
ambient light level detector output, with two user
programmable thresholds.
A power down input puts the VM6101 in ultra low
power mode.
The VM6101 is housed in an compact 8-lead
surface mount clear plastic package, compliant to
RoHS directive.
May 2007
Rev 3
1/17
www.st.com
17