CPS295HW
Ambient Light Sensor

CPS295HW
Ambient Light Sensor（Analog Current Output）

Data Sheet© Yitoa Micro Technology Corp., 2021
Last Update 27-Apr./2021

Note : This document may be changed without prior notice. Please check the latest document for examination.

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CPS295HW

Ambient Light Sensor

１． Description
CPS295HW is an analog current output ambient light sensor with photo diode and current amplifier.
This IC can be used to Brightness control and on-off control of light sources such as a display .
And Improvement in display visibility, the improvement in a life of a light source, and reductionof power consumption are attained.

２． Features
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３．

Wide Operating temperature range (-40℃～105℃)
Spectral sensitivity close to human eye sensitivity
Output current in proportion to illuminanceLight source dependency is small
Solder re-flow permitted
Halogen free permitted

Maximum Ratings
Condition ： Ta=25℃
Item

４．

SymbolRatings

Unit

Supply voltage

VCC

6V

IOUT Current

IoutMax

6.5

mA

Terminal input voltage range

Vimax

GND-0.3 to VCC+0.3VPower dissipation

PdTBD

mW

Storage temperature

Tstg-40 ～ 125℃

SymbolRatings

Unit

Supply voltage

VCC

2.7 ～ 5.5

V

Operating temperatureTopr-40 ～ 105℃

Recommended Operating Conditions
Item

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５．

Ambient Light Sensor

Terminal Function and Equivalent Circuit on Terminal

No.

Name

Terminal Function

Equivalent Circuit
VCC

1SW

Gain Mode Setting Terminal

SWGND

2NC

No Connection

3VCC

Power Supply Terminal

4GND

Ground TerminalNC

No Connection

VCC

5GND

VCC

Current Output Terminal
6

IOUT

Output current in proportion
to illuminance

IOUT

GND

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Ambient Light Sensor

６． Block Diagram

VCC
3Gain
SelectPDCurrent
Amp

16SW

IOUT

R14GND

７． Gain Mode Setting
SWGain ModeHigh

H_Gain （x1）Open

M_Gain (x0.1)

Low

L_Gain (x0.01)

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８．Electrical and Optical Characteristics
Measurement condition ： VCC=3V

Item
Supply Current

Ta=25℃

Symbol*1 *2Condition

MIN

TYP

MAXUnitIcc

Ev = 100lx(-35%)(475)(+35%)uA

Output Dark Current

Iout0

Ev = 0lx--(0.8)uA

Output Current *1 *2

Iout1

Ev = 100lx
Gain Mode：H_Gain(-30%)(400)(+30%)uA

Peak Sensitivity
Wavelength
*2λp-

540-

nm

2.6--

V

VIL0-

0.4

VVIH

2.5

-

VCC

V

Gain Ratio 1
M_Gain / H_Gain *1

RG1-10%0.1+10%-

Gain Ratio 2
L_Gain/M_Gain

RG2-10%0.1+10%-

Saturated Output Voltage*1SW
Low Level Input Voltage

SW
High Level Input Voltage*1Vomax

Ev = 100lx R1 = 150kΩGain Mode：H_Gain*1 Light source is standard source A (2856K).
*2 It is design guarantee item

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９． Reference Data

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１０．

Ambient Light Sensor

External Dimensions①⑥②⑤③④Unit : mm

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11． To Customers:
If any product described in this document corresponds to goods or technologies which are restricted to export under theJapanese “Foreign Exchange and Foreign Trade Control Law” or other applicable laws of a government having
jurisdiction, then, appropriate permission for exporting such products or technologies are required to be taken.
In relation to use of the information contained in this document, no license is granted to you with regard to any
intellectual property rights of YITOA MICRO TECHNOLOGY CORPORATION (hereinafter referred to as "MTC")
or any third party. MTC will not be liable in any way for any claim related to infringement of intellectual propertyrights or other rights of third parties arising from the use of the information contained in this document.
The information concerning the circuits and other related information contained in this document is provided forreferential purpose only to explain the operation or application of the products, and it will be your sole responsibility touse such information for designing of your own devices. MTC will not be liable in any way for any loss or damages
incurred to you or any other party arising from the use of such information.
In general, failures in semiconductor products occur at certain percentage. Therefore, upon designing your owndevices, please give due consideration to the redundancy, safety of your devices and methods to prevent occurrence ofmalfunction in order to avoid personal injuries, accidents or other social damages which might happen as the result of a
failure of semiconductor products used in your devices.
For application of MTC products to medical equipment or other purposes where high reliability of the device isrequired, please contact MTC sales representative.
The contents of this documents may be subject to change without any notice, due to improvement of reliability or
design of the products.
It is inhibited to reproduce or copy the whole or part of this document without the permission of MTC.

YITOA Micro Technology Corporation
Sales Division
465 Osato-cho, Kofu-shi, Yamanashi
400-0053 Japan
Phone (81)-55- 241 – 8622

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