AL8400EV1

Issue 1 –November 2010

www.diodes.com

© Diodes Incorporated 2010

4

Bill of Materials

QUANTITY

PCB IDENT

VALUE

DESCRIPTION

SUGGESTED SOURCE

1

N/A

DDB041R1

PCB

Diodes Zetex

1

U1

AL8400

Diodes Zetex

1

Q1

FZT690B

Diodes Zetex

2

C1,C2

470nF

0603 Ceramic Capacitor

Generic

1

R1

10k

0603 Resistor

Generic

1

R2

1R3

1206 Resistor

Generic

Circuit Accuracy.

The accuracy of the circuit is determined by the accuracy of the device (+/- 5% over temp)

and the accuracy of the current sensing resistor (Typ +/- 1%).

For the circuit as set the nominal current is 154mA (0.2/1.3 = 0.15384…). The worst cases

are 163mA (0.210/1.287 = 0.16317…) and 144mA (0.19/1.313 = 0.14470…). This gives approx 10mA

possible variation over the nominal 154mA, about 6.5%.

For Further information please contact your Diodes Inc representative.