LIA130STR datasheet(2/10 Pages) CLARE

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PRELIMINARY

LIA130

R00C

Absolute Maximum Ratings are stress ratings. Stresses in

excess of these ratings can cause permanent damage to

the device. Functional operation of the device at conditions

beyond those indicated in the operational sections of this

data sheet is not implied.

Parameter

Conditions

Symbol

Min

Typ

Max

Units

Input Characteristics @ 25°C

LED forward voltage

LED = 5 mA, VCOMP = VFB (Fig.1)

0.9

1.4

Reference voltage

COMP = VFB, ILED = 10 mA, -40 to +85°C (Fig.1)

REF

1.224

1.24

1.259

COMP = VFB, ILED = 10 mA, 25°C (Fig.1)

1.228

1.24

1.252

Deviation of V

REF over temperature

A = -40 to +85°C

REF (DEV)

TBD

Ratio of V

REF variation to the output of the error amplifier

LED = 10 mA, VCOMP = VREF to 10 V (Fig.2)

ΔV

REF/

ΔV

COMP

0.002

TBD

mV/V

Feedback input current

LED = 10 mA, R1 = 10 kΩ (Fig.3)

REF

0.09

TBD

μA

Deviation of I

REF over temperature

A = -40 to +85°C

REF (DEV)

0.028

TBD

μA

Minimum drive current

COMP = VFB (Fig.1)

LED (MIN)

-45

μA

Off-state error amplifier current

LED = 6 V, VFB = 0 (Fig.4)

(OFF)

0.001

0.1

μA

Error amplifier output impedance 2

COMP = VFB, ILED = 0.1 mA to 15 mA, f<1 kHZ

OUTI

0.22

Output Characteristics @ 25°C

Collector dark current

CE = 10V (Fig. 5)

CEO

0.3

Collector-emitter voltage breakdown

C = 1.0mA

CEO

Emitter-collector voltage breakdown

E = 100 µA

ECO

1. The deviation parameters V

REF(DEV) and IREF(DEV) are defined as the differences between the maximum and minimum values obtained over the rated temperature range. The average full-

range temperature coefficient of the reference input voltage,

ΔV

REF, is defined as:

ΔV

REF| (ppm/°C) = {VREF (DEV)/VREF (TA 25°C)} X 10

6 /

ΔT

where

ΔT

A is the rated operating free-air temperature range of the device.

2. The dynamic impedance is defined as |Z

OUT| = ΔVCOMP/ΔILED. When the device is operating with two external resistors (see Figure 2), the total dynamic impedance of the circuit is given by:

OUT, TOT| = ΔV/ΔI ≈ |ZOUT| X [1 + R1/R2]

Electrical Characteristics

Parameter

Symbol

Ratings

Units

Collector-Emitter Voltage

CEO

Emitter-Collector Voltage

ECO

Input Voltage

LED

Input DC Current

LED

Collector Current

Input Power Dissipation 1

145

Transistor Power Dissipation 2

Total Power Dissipation 3

145

Storage Temperature

STG

-55 to +125

°C

Operating Temperature

OPR

-40 to +85

°C

Absolute Maximum Ratings (@ 25˚ C)

1 Derate linearly from 25°C at a rate of 2.42 mW/ °C.

2 Derate linearly from 25°C at a rate of 1.42 mW/ °C.

3 Derate linearly from 25°C at a rate of 2.42 mW/ °C.

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