SSL8516T datasheet(21/33 Pages) NXP

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SSL8516T

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Product data sheet

Rev. 1 — 5 May 2014

21 of 33

NXP Semiconductors

SSL8516T

Greenchip PFC and flyback controller

Input voltage sensing PFC (VINSENSE pin)

Vstop(VINSENSE)

stop voltage on pin

VINSENSE

0.86

0.89

0.92

Vstart(VINSENSE)

start voltage on pin

VINSENSE

1.12

1.16

1.20

Vflr

fast latch reset voltage active after Vth(UVLO) is detected

0.6

0.75

0.9

Vflr(hys)

hysteresis of fast latch

reset voltage

110

160

II(VINSENSE)

input current on pin

VINSENSE

VVINSENSE >Vstop(VINSENSE) after

Vstart(VINSENSE) is detected

520

Vth(sel)clmp

clamp select threshold

voltage

on pin VINSENSE

1.9

2.1

Vth(sel)clmp(hys)

clamp select threshold

voltage hysteresis

100

140

Vth(pd)

power-down threshold

voltage

285

385

485

Vth(pd)exit

exit power-down

threshold voltage

VCC = 0 V

335

460

585

Vhys(pd)

power-down

hysteresis voltage

105

Loop compensation PFC (PFCCOMP pin)

transconductance

VVOSENSE to IO(PFCCOMP)

A/V

IO(PFCCOMP)

output current on pin

PFCCOMP

VVOSENSE = 2 V; VPFCCOMP = 2.75 V

A

VVOSENSE = 3.3 V;

VPFCCOMP =2.75V

108 88

68

A

Ien(PFCCOMP)

enable current on pin

PFCCOMP

55

A

Vclamp(PFCCOMP)

clamp voltage on pin

PFCCOMP

low-power mode; PFC off; initial

start-up; lower clamp voltage.

[1]

VINSENSE

 V

th(sel)clmp +

Vth(sel)clmp(hys) on pin VINSENSE;

VVOSENSE =2 V

[2] 3.2

3.32

3.44

VINSENSE < Vth(sel)clmp on pin

VINSENSE; VVOSENSE =2V

[2] 1.06

1.18

1.30

upper clamp voltage

3.6

3.75

3.9

high-power mode; PFC on;

uni-directional source clamp;

IPFCCOMP = 30 A;

VVOSENSE =2.5 V

1.09

1.19

1.29

Vton(PFCCOMP)zero

zero on-time voltage

on pin PFCCOMP

3.4

3.5

3.6

Table 5.

Characteristics …continued

Tamb =25 C; VCC = 20 V; all voltages are measured with respect to ground (pin 2); currents are positive when flowing into

the IC; unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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