IC-LSBOBGALS2C_技术文档

iC-LSB

8-CHANNEL ACTIVE PHOTOSENSOR ARRAY

Rev C1, Page 1/7

FEATURES

APPLICATIONS

♦ Monolithic array of independent photosensors with excellent

matching

♦ Optical position encoding from

analog sine/cosine signals

♦ Incremental encoders with index

signal

♦ Compact photosensor size of 800 µm x 300 µm enabling

high-quality encoder scanning at reduced system dimensions

♦ Narrow track pitch of 0.42 mm cuts down illumination efforts

♦ Enhanced EMI immunity due to on-chip pre-ampliﬁcation

♦ Dark current compensation permits high temperature

operation

♦ Open-collector outputs as highside current source

♦ Simple gain setting and current-to-voltage conversion by

external load resistors

♦ Single supply operation from 4 V to 5.5 V

♦ Low power consumption

PACKAGES

♦ Space saving, RoHS compliant optoQFN and optoBGA

packages

♦ Options: extended temperature range of -40 to 125 °C,

customized COB modules, reticles and code discs

14-pin optoBGA

6.2 mm x 5.2 mm

BLOCK DIAGRAM

http://www.ichaus.com

iC-LSB

8-CHANNEL ACTIVE PHOTOSENSOR ARRAY

Rev C1, Page 2/7

DESCRIPTION

The iC-LSB sensor array, coming with 8 independent avoids a ground referenced signal and permits the

channels, is a general purpose optoelectronic scan- subsequent electronics to adjust the gain. In its sim-

ner made to suit a variety of encoding applications, plest form this is done by load resistors, for instance.

such as rotary and linear encoders used for motion

control, robotics, power tools etc.

The spectral sensitivity range includes visible to near

infrared light, with the maximum sensitivity being

The sensor array features monolithically integrated close to a wavelength of 700 nm.

photosensors with active areas of 800 µm x 300 µm

each in combination with fast on-chip photocurrent Output currents of up to 50 µA are supplied under low

ampliﬁers, enabling an analog output at reasonable light conditions, for instance when illuminated at only

signal strength to the circuit board.

3 µW/mm²by an 850 nm LED. The photocurrent gain

is 46 dB typically.

The highside current source output construction

PACKAGES

PAD LAYOUT

Chip size 2.80 mm x 1.96 mm

PAD FUNCTIONS

No. Name Function

1 VCC +4...5.5 V Supply Voltage

2 A1

3 B1

4 C1

5 D1

6 D2

7 C2

8 B2

9 A2

Highside Current Source Output

10 GND Ground

iC-LSB

8-CHANNEL ACTIVE PHOTOSENSOR ARRAY

Rev C1, Page 3/7

PIN CONFIGURATION

oBGA LS2C (6.2 mm x 5.2 mm)

PIN FUNCTIONS

No. Name Function

1 VCC +4...5.5 V Supply Voltage

2 A1

3 B1

4 C1

Highside Current Source Output

5 D1

6...9 n.c.

10 D2

11 C2

12 B2

13 A2

Highside Current Source Output

14 GND Ground

Pin numbers marked n.c. are not in use. For dimensional speciﬁcations refer to the relevant package data

sheets, available separately. IC top markings, such as <LOT CODE>, indicate the orientation of the device.

iC-LSB

8-CHANNEL ACTIVE PHOTOSENSOR ARRAY

Rev C1, Page 4/7

ABSOLUTE MAXIMUM RATINGS

These ratings do not imply operating conditions; functional operation is not guaranteed. Beyond these ratings device damage may occur.

Item Symbol

No.

Parameter

Conditions

Unit

Min.

-0.3

-20

Max.

G001 VCC

G002 I(VCC)

G003 V()

G004 I()

Voltage at VCC

6

20

V

mA

V

Current in VCC

Pin Voltage, all signal outputs

Pin Current, all signal outputs

ESD Susceptibility, all pins

Junction Temperature

Chip Storage Temperature

-0.3

-20

VCC+0.3

20

mA

kV

°C

G005 Vd()

G006 Tj

HBM, 100 pF discharged through 1.5 kΩ

2

-40

150

G007 Ts

THERMAL DATA

Item Symbol

No.

Parameter

Conditions

Unit

Min. Typ. Max.

T01 Ta

Operating Ambient Temperature Range

package oBGA LS2C

-20

90

°C

(extended temperature range on request)

package oBGA LS2C

T02 Ts

Storage Temperature Range

Soldering Peak Temperature

-30

110

°C

T03 Tpk

package oBGA LS2C

tpk < 20 s, convection reﬂow

tpk < 20 s, vapor phase soldering

245

230

°C

TOL (time on label) 8 h;

Please refer to customer information ﬁle No. 7

for details.

All voltages are referenced to ground unless otherwise stated.

All currents ﬂowing into the device pins are positive; all currents ﬂowing out of the device pins are negative.

iC-LSB

8-CHANNEL ACTIVE PHOTOSENSOR ARRAY

Rev C1, Page 5/7

ELECTRICAL CHARACTERISTICS

Operating conditions: VCC = 4...5.5 V, Tj = -40...125 °C, unless otherwise stated

Item Symbol

No.

Parameter

Conditions

Unit

Min.

Typ.

Max.

Total Device

001 VCC

Permissible Supply Voltage

Supply Current in VCC, dark

4

5.5

2

V

002

I(VCC)

E() = 0

Tj = 27 °C

λ_LED= λpk, E() = 0.1 mW/cm²

Tj = 27 °C

mA

1.0

1.5

003

I(VCC)

Supply Current in VCC

4

mA

004 Vc()hi

005 Vc()lo

Clamp-Voltage hi at all pins

Clamp-Voltage lo at all pins

I() = 4 mA

I() = -4 mA

11

V

-1.2

400

-0.3

Photosensors

101 E()mxr

Permissible Irradiance

λ_LED= λpk

0.2

mW/

cm²

mm²

102 Aph()

Radiant Sensitive Area

0.8 mm x 0.3 mm per sensor

0.24

103

λar

Spectral Application Range

Se(λar) = 0.25 x S(λ)max

950

nm

see Figure 1

104 λpk

105 S(λ)

Peak Sensitivity Wavelength

Spectral Sensitivity

see Figure 1

680

nm

λ_LED= λpk

0.45

A/W

Photocurrent Ampliﬁers

201 Iph()

Permissible Photocurrent

Operating Range

per sensor

0

200

120

250

nA

202 η()r

Photo Sensitivity

(light-to-voltage conversion ratio)

λ_LED= 740 nm

CR() = Iout() / Iph()

60

A/W

203 CR()

204 fc()hi

Photocurrent Gain

150

-15

200

Cut-off Frequency (-3 dB)

kHz

%

205 ∆Iout()m Channel Matching

206 ∆Iout()m Channel Cross Talk

deviation from mean value

+15

only one photosensor illuminated at the same

time

0

%

Current Source Outputs

301 Vout()

Permissible Output Voltage

(Operating Range)

1

VCC -

1.5

V

302

303

Iout()

Permissible Output Current

Vout() = 1 V ... VCC - 1.5 V

VCC = 4.5...5.5 V, Vout() = 1 V ... VCC - 2 V

-50

-200

µA

tr(), tf()

Output Current Rise/Fall Time

Output Dark Current

Iph: 0 → 100 nA, 1T settling (63%);

Vout() = constant

0.7

0.8

µs

CL = 30 pF, RL() = 10 kΩ

304 Iout()0

-0.6

+0.6

µA

Figure 1: Relative spectral response

Figure 2: Typical directional characteristics

iC-LSB

8-CHANNEL ACTIVE PHOTOSENSOR ARRAY

Rev C1, Page 6/7

APPLICATION CIRCUITS

Figure 3: Optical encoder application example. Here, the sine-to-digital converter iC-NV is employed to

output spike-free encoder quadrature signals featuring a minimum transition distance.

iC-Haus expressly reserves the right to change its products and/or speciﬁcations. An Infoletter gives details as to any amendments and additions made to the

relevant current speciﬁcations on our internet website www.ichaus.de/infoletter; this letter is generated automatically and shall be sent to registered users by

email.

Copying – even as an excerpt – is only permitted with iC-Haus approval in writing and precise reference to source.

iC-Haus does not warrant the accuracy, completeness or timeliness of the speciﬁcation on this site and does not assume liability for any errors or omissions

in the materials. The data speciﬁed is intended solely for the purpose of product description. No representations or warranties, either express or implied, of

merchantability, ﬁtness for a particular purpose or of any other nature are made hereunder with respect to information/speciﬁcation or the products to which

information refers and no guarantee with respect to compliance to the intended use is given. In particular, this also applies to the stated possible applications or

areas of applications of the product.

iC-Haus conveys no patent, copyright, mask work right or other trade mark right to this product. iC-Haus assumes no liability for any patent and/or other trade

mark rights of a third party resulting from processing or handling of the product and/or any other use of the product.

As a general rule our developments, IPs, principle circuitry and range of Integrated Circuits are suitable and speciﬁcally designed for appropriate use in technical

applications, such as in devices, systems and any kind of technical equipment, in so far as they do not infringe existing patent rights. In principle the range of

use is limitless in a technical sense and refers to the products listed in the inventory of goods compiled for the 2008 and following export trade statistics issued

annually by the Bureau of Statistics in Wiesbaden, for example, or to any product in the product catalogue published for the 2007 and following exhibitions in

Hanover (Hannover-Messe).

We understand suitable application of our published designs to be state-of-the-art technology which can no longer be classed as inventive under the stipulations

of patent law. Our explicit application notes are to be treated only as mere examples of the many possible and extremely advantageous uses our products can

be put to.

iC-LSB

8-CHANNEL ACTIVE PHOTOSENSOR ARRAY

Rev C1, Page 7/7

ORDERING INFORMATION

Type

Package

-

Options

Order Designation

iC-LSB

iC-LSB chip

14-pin optoBGA

6.2 mm x 5.2 mm

glass lid

iC-LSB oBGA LS2C

14-pin optoBGA

6.2 mm x 5.2 mm

on-chip reticle

iC-LSB oBGA LS2C-LSBxR

For technical support, information about prices and terms of delivery please contact:

iC-Haus GmbH

Tel.: +49 (61 35) 92 92-0

Am Kuemmerling 18

D-55294 Bodenheim

GERMANY

Fax: +49 (61 35) 92 92-192

Web: http://www.ichaus.com

E-Mail: sales@ichaus.com

Appointed local distributors: http://www.ichaus.com/sales_partners


型号：	IC-LSBOBGALS2C
厂家：	IC-HAUS GMBH
描述：	8-CHANNEL ACTIVE PHOTOSENSOR ARRAY 8通道有源光传感器阵列传感器
文件：	总7页 (文件大小：286K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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