SSL4120T datasheet(37/47 Pages) NXP

37 / 47 page

SSL4120T

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Objective data sheet

Rev. 1 — 21 June 2012

37 of 47

NXP Semiconductors

SSL4120T

Resonant power supply control IC with PFC

Iprot(SNSBOOST)

protection current on pin

SNSBOOST

VSNSBOOST = 2.5 V

100

HBC high-side and low-side driver (pin GATEHS and GATELS)

Isource(GATEHS)

source current on pin GATEHS

VGATEHS

− VHB =4V

−310 -

Isource(GATELS)

source current on pin GATELS

VGATELS

− VPGND =4V

−310 -

Isink(GATEHS)

sink current on pin GATEHS

VGATEHS

− VHB = 2 V;

560

VGATEHS

− VHB =11V

1.9

Isink(GATELS)

sink current on pin GATELS

VGATELS

− VPGND = 2 V

560

VGATELS

− VPGND =11V

1.9

Vrst(SUPHS)

reset voltage on pin SUPHS

4.5

Iq(SUPHS)

quiescent current on pin SUPHS

VSUPHS

− VHB =11 V

μA

HBC adaptive non-overlap time (pin HB)

(dV/dt)ano(min)

minimum adaptive non-overlap time

rate of voltage change

120

μs

tno(min)

minimum non-overlap time

160

HBC current controlled oscillator (pin CFMIN and RFMAX)

fmin(HB)

minimum frequency on pin HB

Cfmin =390 pF;

VSSHBC/EN >Vfmin(SSHBC)

VSNSFB > Vfmin(SNSFB)

kHz

Iosc(min)

minimum oscillator current

VRFMAX = 0 V; charge and

discharge

150

μA

Iosc(max)

maximum oscillator current

Rfmax =15k

Ω;

VRFMAX=2.5 V;

VSSHBC/EN <Vfmax(SSHBC)

970

μA

Iosc(red)

reduced oscillator current

slowed-down oscillator

−30

μA

ICFMIN/IRFMAX

current on pin CFMIN to current on

pin RFMAX ratio

-4.9

flimit(HB)

limit frequency on pin HB

Cfmin = 20 pF

500

670

kHz

Vu(CFMIN)

upper voltage on pin CFMIN

2.85

3.15

Vl(CFMIN)

lower voltage on pin CFMIN

0.9

1.1

Vfmin(RFMAX)

minimum frequency voltage on pin

RFMAX

-0

Vfmax(ss)(RFMAX)

maximum soft start frequency

voltage on pin RFMAX

VSSHBC/EN < Vfmax(SSHBC)

2.4

2.5

2.6

Vfmax(fb)(RFMAX)

maximum feedback frequency

voltage on pin RFMAX

VSNSFB < Vfmax(SNSFB)

1.45

1.55

1.65

HBC feedback input (pin SNSFB)

Vpu(SNSFB)

pull-up voltage on pin SNSFB

8.4

RO(SNSFB)

output resistance on pin SNSFB

1.5

Volp(SNSFB)

open-loop protection voltage on pin

SNSFB

[2] 77.7

7.9

Iolp(SNSFB)

open-loop protection current on pin

SNSFB

[2]

−0.35 −0.26 −0.1

Table 7.

Characteristics …continued

Tamb =25

°C; VSUPIC =20V; VSUPHV > 40 V; all voltages are measured with respect to SGND; currents are positive when

flowing into the IC; unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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