EL7900ILCZ中文资料

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FN7377.0

PRELIMINARY

EL7900

Ambient Light Photo Detect IC

The EL7900 is a light-to-current optical sensor combining a photodiode and a current amplifier on a single monolithic IC. Output current is directly proportionate to the light intensity on the photodiode. Its sensitivity is superior to that of a phototransistor and exhibits little variation. Its spectral sensitivity matches closely to the luminous efficiency and linearity.

Housed in an ultra-compact surface mount clear plastic package, this device is excellent for power saving control function in cell phones, PDAs, and other handheld applications.

Pinout

EL7900(5-PIN DFN)TOP VIEW

Features

?Monolithic IC containing photodiode and amplifier ?Converts light intensity to current ? 2.5V to 5.5V supply range ?Low supply current - 1μA

?Excellent output linearity of luminance

?Ultra-compact and light surface mount package ?Pb-Free plus anneal available (RoHS compliant)

Applications

?Mobile phones ?Notebook PCs ?PDAs

?Video cameras ?

Digital cameras

Ordering Information

PART NUMBER

PACKAGE TAPE & REEL

PKG. DWG. #EL7900ILCZ (See Note)

5-Pin ODFN (Pb-free)

-

MDP0052

NOTE:Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

Data Sheet

June 20, 2005

元器件交易网https://www.wendangku.net/doc/d89642208.html,

FIGURE 1.RISE/FALL TIME MEASUREMENT

FIGURE 2.

Absolute Maximum Ratings (T A = 25°C)

Supply Voltage between V SD and GND . . . . . . . . . . . . . . . . . . . .6V Maximum Continuous Output Current. . . . . . . . . . . . . . . . . . . . TBD Operating Temperature . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C

Maximum Die Temperature . . . . . . . . . . . . . . . . . . . . . . . . . .+125°C Storage Temperature. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

IMPORTANT NOTE:All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: T J = T C = T A

Electrical Specifications

V CC = 3V , T A = 25°C, fluorescent light, unless otherwise specified.

PARAMETER DESCRIPTION

CONDITION

MIN

TYP MAX

UNIT I CC

Supply Current

R L = 1k ?, EV = 100lx 62μA EV = 0lx

1

μA I L1Light Current EV = 100lx 39

60.582μA I L2Light Current EV = 10lx 6.2μA I LEAK Dark Current

EV = 0lx

0.15μA V O-MAX Maximum Output Compliance Voltage at 95% of nominal output current, EV = 100lx 2.7V T R Rise Time (See Note)R L = 5k ?, EV = 300lx 105125μs T F Fall Time (See Note)

R L = 5k ?, EV = 300lx 170225μs T D Delay Time for Rising Edge (See Note)R L = 5k ?, EV = 300lx 165200μs T S Delay Time for Falling Edge (See Note)R L = 5k ?, EV = 300lx

65

85μs V LO Maximum Voltage at EN Pin to Enable 0.6

V V HI

Minimum Voltage at EN Pin to Disable

1.8

V

NOTE:Switching time measurement is based on Figures 1 and 2.

EL7900

PULSE DRIVE

V CC

R L

V OUT

CH1

CH2

PULSE DRIVE

V OUT

T D T R

80%20%T S

T F

1mS 1V

0.5V

V S =3V T A =27°C

Typical Performance Curves

FIGURE 3.RELATIVE SENSITIVITY FIGURE 4. SENSITIVITY

FIGURE 5.DARK CURRENT vs TEMPERATURE FIGURE 6. GAIN vs TEMPERATURE

FIGURE 7.OUTPUT COMPLIANCE VOLTAGE vs CURRENT

SPECTRAL WAVELENGTH (nm)

R E L A T I V E S E N S I T I V I T Y (%)

428444460476492508524540556572588604620636652668

10075

50

25

ILLUMINATION (L X )

O U T P U T C U R R E N T (μA )

700

6004002000500300100

200

400

600

800

1000

V CC = 3V

FLUORESCENT LIGHT

TEMPERATURE (°C)O U T P U T C U R R E N T - N O L I G H T (μA )

0.2

0.18

0.14

0.10.16

0.12

-60

-4004080100

-202060V DD =3V

TEMPERATURE (°C)

G A I N /G A I N (25°C )

1.2

1.150.950.81.050.85

-60

-4004080100

-2020601.10.91V DD =3V

FLUORESCENT LIGHT OF 50 LUX OUTPUT CURRENT (μA)

O U T P U T C O M P L I A N C E V O L T A G E (V D D -V O U T ) (V )

0.6

0.50.200.30.1-200

040080010001200

200600V DD =3V T A =27°C

0.4

Block Diagram

Pin Descriptions

PIN NAME DESCRIPTION

1VCC Supply, 2.5V to 5.5V 2GND Ground 3EN Enable 4NC No connect 5

Output

Current output pin

ENABLE

OUTPUT

GND

VCC 1

25

3

NOTE:The package drawing shown here may not be the latest version. To check the latest revision, please refer to the Intersil website at

https://www.wendangku.net/doc/d89642208.html,/design/packages/index.asp

All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.

Intersil Corporation’s quality certifications can be viewed at https://www.wendangku.net/doc/d89642208.html,/design/quality

Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.

For information regarding Intersil Corporation and its products, see https://www.wendangku.net/doc/d89642208.html,