UBA2017 datasheet(22/29 Pages) PHILIPS

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UBA2017

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Product data sheet

Rev. 2 — 15 May 2012

22 of 29

NXP Semiconductors

UBA2017/UBA2017A

600 V fluorescent lamp driver with linear dimming function

[1]

Default setting; see Table 7.

tto(ph)/tto(fault)

ratio between preheat time-out time and

fault time-out time

Rpar(ext) =700 k

Ω; Rs(ext) not

connected (short)

33.4

3.8

Rpar(ext) not connected (open);

Rs(ext) not connected (short)

4.7

5.2

5.7

Rpar(ext) not connected (open);

Rs(ext) =40 k

911.5

Temperature protection

Tth(act)otp

overtemperature protection activation

threshold temperature

120

140

160

°C

Tth(rel)otp

overtemperature protection release

threshold temperature

°C

Table 6.

Characteristics …continued

Tamb = 25 °C; settings according to default setting[1]; all voltages referenced to GND; current flow into the IC is positive;

unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 7.

Default settings for characteristics

Pin name

Application

SLHB

connected to ground

IFB

connected to ground

EOL

connected to a 1.6 V test supply

VFB

connected to a 0.5 V test supply

IREF

connected via a 33 k

Ω resistor to ground

CIFB

connected via a 100 nF capacitor to ground

connected via a 200 pF C0G (NP0) capacitor to ground

CPT

connected via a 100 nF capacitor to ground

DIM

connected via a 100 pF capacitor to ground

PH/EN

not connected

GND

connected to ground

VDD

connected to a 13 V test supply

GLHB

not connected (open)

SHHB

connected to ground

FSHB

connected to a 13 V test supply

GHHB

not connected (open)

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