SSL2129AT datasheet(12/21 Pages) NXP

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SSL2129AT

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Product data sheet

Rev. 2 — 23 October 2012

12 of 21

NXP Semiconductors

SSL2129AT

Dimmable LED controller IC

11. Characteristics

Table 6.

Characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fconv

conversion frequency

100

kHz

High-voltage

Ileak(DRAIN)

leakage current on pin DRAIN

VDRAIN = 600 V

A

Ileak(HV)

leakage current on pin HV

VHV = 600 V

A

Supply

VCC

supply voltage

operating range

[1] 8

VCC(startup)

start-up supply voltage

VCC(stop)

stop supply voltage

VCC(hys)

hysteresis of supply voltage

between VCC(startup) and VCC(stop)

4.5

VCC(rst)

reset supply voltage

4.5

5.5

VCC(swon)reg

regulator switch-on supply voltage

8.75

9.25

9.75

VCC(swoff)reg

regulator switch-off supply voltage

9.5

10.5

VCC(reg)hys

regulator supply voltage hysteresis VCC(swoff)reg VCC(swon)reg

0.3

VCC(regswon-stop) supply voltage difference between

regulator switch-on and stop

VCC(swon)reg VCC(stop)

0.3

Consumption

Istb(HV)

standby current on pin HV

during start-up or in protection;

VHV = 100 V

300

350

400

A

ICC(INT)

internal supply current

normal operation

1.3

Capability

Isup(high)HV

high supply current on pin HV

Standby: VHV = 40 V;

VCC < VCC(stop)

1.3

1.6

Regulator on: VHV = 40 V;

VCC < VCC(swon)reg after start-up

2.3

2.6

Current

Vth(ocp)SOURCE

overcurrent protection threshold

voltage on pin SOURCE

V/t = 0.1 V/s

480

500

520

V/t = 0.1 V/s; V

NTC = 0.325 V

230

250

270

td(ocp-swoff)

delay time from overcurrent

protection to switch-off

V/t = 0.1 V/s

100

tleb

leading edge blanking time

overcurrent protection

260

300

340

Valley detection

(

V/t)

vrec

valley recognition voltage change

with time

on pin DRAIN

30

20

10

s

fring

ringing frequency

[2] 200

550

1000

kHz

V

vrec(min)

minimum valley recognition

voltage difference

voltage drop on pin DRAIN

td(vrec-swon)

valley recognition to switch on

delay time

100

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