CPC5001GS datasheet(6/9 Pages) IXYS

6 / 9 page

INTEGRATED CIRCUITS DIVISION

CPC5001

www.ixysic.com

R01

Performance Characteristics

Functional Description

4.1 Introduction

The CPC5001 combines the functions of two input

buffer/LED driver gates and two unidirectional logic

optoisolators in a single 8-pin package. The isolators

are arranged for one input and one output at each side

of the isolation barrier, which enables Channel 1 to

send signals from side A to Side B, and Channel 2 to

send signals from the Side B to the Side A. If different

supply voltage levels are used at each side, then the

part, in conjunction with its external pullup resistors,

will perform logic level translation for VDD between

2.7V and 5.5V at either side.

The part provides galvanic isolation for voltages up to

3750Vrms. Its CMOS circuitry includes a bandgap

reference to ensure that the LEDs receive consistent

drive current levels over the allowed range of VDD

voltages. The supply currents at IDDA and IDDB are

much smaller than those required by bipolar solutions,

and are stable over temperature. The circuits also

ensure that the IDD current into each VDD package pin

remains constant for both high and low input signals.

This can greatly reduce the size of external decoupling

capacitors when compared with optoisolators

fabricated in a bipolar process wherein the supply

current can double when the LED is on.

The rotationally symmetric pinout ensures that the

part operates normally even if installed with 180°

rotation.

Temperature (ºC)

-40

-20

80100

0.25

0.30

0.35

0.40

0.45

0.50

0.55

Typical Output Voltage, V

OLA , VOLB

vs. Temperature

SINKA=6mA)

DD=2.7V

DD=3.3V

DD=5.5V

Supply Voltage (V)

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

Supply Current I

DDA, IDDB

vs. Supply Voltage

Supply Voltage (V)

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

0.20

0.25

0.30

0.35

0.40

0.45

0.50

0.55

0.60

Logic-Low Output Level V

vs. Supply Voltage

SINK=6mA)

Temperature (ºC)

-40

-20

100

120

140

160

Propagation Delay A to B and B to A

DD=3.3V, CL=20pF, RPU=475Ω)

PHL

PLH

Temperature (ºC)

-40

-20

100

4.5

4.6

4.7

4.8

4.9

5.0

5.1

5.2

5.3

5.4

5.5

Supply Current I

DDA, IDDB

vs. Temperature

DD=5.5V, RPU=820Ω)

Supply Voltage (V)

0.30

0.35

0.40

0.45

0.50

0.55

0.60

0.65

0.70

IL Falling, VIH Rising

vs. Supply Voltage

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

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