L6566ATR datasheet(12/51 Pages) STMICROELECTRONICS

12 / 51 page

Electrical characteristics

L6566A

12/51

Electrical characteristics

(TJ = -25 to 125 °C, VCC = 12 V, CO = 1 nF; MODE/SC = VREF, RT = 20 kΩ from OSC to

GND, unless otherwise specified).

Table 4.

Electrical characteristics

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

Supply voltage

Vcc

Operating range after turn-on

VCOMP > VCOMPL

10.6

VCOMP = VCOMPO

823

VccOn

Turn-on threshold

(1)

VccOff

Turn-off threshold

(1) V

COMP > VCOMPL

9.4

10.6

(1) V

COMP = VCOMPO

7.2

7.6

8.0

Hys

Hysteresis

VCOMP > VCOMPL

Zener voltage

Icc = 20 mA, IC disabled

Supply current

Istart-up

Start-up current

Before turn-on, Vcc = 13 V

200

250

µA

Quiescent current

After turn-on, VZCD = VCS = 1 V

2.6

2.8

Icc

Operating supply current

MODE/SC open

4.6

Iqdis

Quiescent current

IC disabled (2)

330

2500

µA

IC latched off

440

500

High-voltage start-up generator

VHV

Breakdown voltage

IHV < 100 µA

700

VHVstart

Start voltage

IVcc < 100 µA

100

Icharge

Vcc charge current

VHV > VHvstart, Vcc > 3 V

0.55

0.85

IHV, ON

ON-state current

VHV > VHvstart, Vcc > 3 V

1.6

VHV > VHvstart, Vcc = 0

0.8

IHV, OFF

OFF-state leakage current

VHV = 400 V

µA

VCCrestart

Vcc restart voltage

Vcc falling

4.4

5.6

(1) IC latched off

12.5

13.5

14.5

(1) Disabled by

VCOMP < VCOMPOFF

9.4

10.6

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