LS4000 datasheet(14/27 Pages) POWER-ONE

14 / 27 page

Cassette Style

100 Watt AC-DC Converters

S Series PFC

Edition 01/01.2001

14/27

Display Status of LEDs

Uo1 > 0.95...0.98Uo1 adj

Ui max Ui ov

Ui min

Ui uv

Ui abs

Uo1 > 0.95...0.98Uo1 adj

Io nom

IoL

Io L

Uo1 < 0.95...0.98Uo1 adj

TC max

TPTC threshold

Ui inh

+50 V

+0.8 V

+2.4 V

-50 V

Uinh threshold

Io L

LED off

LED on

LED Status undefined

06002

Fig. 22

LEDs "OK", "i" and "Io L"status versus input voltage

Conditions: Io £ Io nom, TC £ TC max, Uinh £ 0.8 V

Ui uv = undervoltage lock-out, Ui ov = overvoltage lock-out

LEDs "OK" and "Io L"status versus output current

Conditions: Ui min...Ui max, TC £ TC max, Uinh £ 0.8 V

LED "i"versus case temperature

Conditions: Ui min...Ui max, Io £ Io nom, Uinh £ 0.8 V

LED "i"versus Uinh

Conditions: Ui min...Ui max, Io £ Io nom, TC £ TC max

Test Sockets (Main output only )

Test sockets for measuring the output voltage

Uo1 are lo-

cated at the front of the module. The positive test socket is

protected by a series resistor (see:

Functional Description,

block diagrams). The voltage measured at the test sockets

is approximately 30 mV lower than the value measured at

the output terminals.

In case of double output units externally connected in se-

ries for

Uo = 24 V, 30 V or 48 V the monitored output volt-

age is 12 V, 15 V or 24 V respectively.

Battery Charging/Temperature Sensor

The LS are intended for lead acid battery charger applica-

tions. For an optimum battery charging and life expectancy

of the battery an external temperature sensor may be con-

nected to the R-input. The sensor is mounted as close as

possible to the battery pole and adjusts the output voltage

of the LS unit according to the temperature of the battery

(which is related to the load of the battery and the ambient

temperature).

Depending on the cell voltage and the temperature coeffi-

cient of the battery, different sensor types are available.

For more information please ask Power-One.

Fig. 17

Dependance of output voltage vs. temperature for defined

temperature coefficient.

2.10

2.15

2.20

2.25

2.30

2.35

2.40

Cell voltage [V]

[

°C]

06123

Uo max

Uz = 2.27 V, –3.5 mV/K

Uz = 2.23 V, –3.5 mV/K

Uo nom

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