L6566BH datasheet(13/51 Pages) STMICROELECTRONICS

13 / 51 page

L6566BH

Electrical characteristics

Doc ID 16610 Rev 2

13/51

Sink capability in UVLO

Vcc = 6 V; Isink = 0.5 mA

0.2

0.5

VOV

Overvoltage threshold

5.3

5.7

Internal oscillator

fsw

Oscillation frequency

Operating range

300

kHz

TJ = 25 °C, VZCD = 0,

MODE/SC = open

100

105

Vcc =12 to 23 V, VZCD = 0,

MODE/SC = open

100

107

VOSC

Voltage reference

(4)

0.9711.03

Dmax

Maximum duty cycle

MODE/SC = open,

VCOMP = 5 V

Brownout protection

Vth

Threshold voltage

Voltage falling (turn-off)

0.432

0.450

0.468

Voltage rising (turn-on)

0.452

0.485

0.518

IHys

Current hysteresis

Vcc > 5 V, VVFF = 0.3 V

121518

µA

VAC_OK_CL Clamp level

(1) I

AC_OK = 100 µA

3.15

3.3

Line voltage feedforward

IVFF

Input bias current

VVFF = 0 to 3 V, VZCD < VZCDth

-1

µA

VZCD > VZCDth

-0.7

-1

VVFF

Linear operation range

0 to 3

VOFF

IC disable voltage

3.15

3.3

VVFFlatch

Latch OFF/clamp level

VZCD > VZCDth

6.4

Control voltage gain (4)

VVFF = 1 V, VCOMP = 4 V

0.4

V/V

KFF

Feedforward gain (3)

VVFF = 1 V, VCOMP = 4 V

0.04

V/V

Current sense comparator

ICS

Input bias current

VCS = 0

-1

µA

tLEB

Leading edge blanking

150

250

300

td(H-L)

Delay to output

100

VCSx

Overcurrent setpoint

VCOMP = VCOMPHI, VVFF = 0 V

0.92

1.08

VCOMP = VCOMPHI, VVFF = 1.5 V

0.45

0.5

0.55

VCOMP = VCOMPHI, VVFF = 3.0 V

0.1

VCSdis

Hiccup-mode OCP level

(1)

1.4

1.5

1.6

PWM control

VCOMPHI

Upper clamp voltage

ICOMP = 0

5.7

Table 4.

Electrical characteristics (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

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