L6563S datasheet(11/42 Pages) STMICROELECTRONICS

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L6563S

Electrical characteristics

Doc ID 16116 Rev 3

11/42

Electrical characteristics

TJ = -25 to 125 °C, VCC = 12 V, CO = 1 nF between pin GD and GND, CFF = 1 µF and

RFF = 1 MΩ between pin VFF and GND; unless otherwise specified.

Table 4.

Electrical characteristics

Symbol

Parameter

Test condition

Min.

Typ. Max. Unit

Supply voltage

Vcc

Operating range

After turn-on

10.3

22.5

VccOn

Turn-on threshold

(1)

VccOff

Turn-off threshold

(1)

8.7

9.5

10.3

Vccrestart Vcc for resuming from latch

OVP latched

Hys

Hysteresis

2.3

2.7

Zener voltage

Icc = 20 mA

22.5

Supply current

Istart-up

Start-up current

Before turn-on, Vcc = 10 V

150

µA

Quiescent current

After turn-on, VMULT = 1 V

ICC

Operating supply current

@ 70 kHz

6.0

Iqdis

Idle state quiescent current

VPFC_OK > VPFC_OK_S AND

VINV < VPFC_OK – VFFD

180

280

µA

VPFC_OK < VPFC_OK_D OR

VRUN < VDIS

1.5

2.2

Quiescent current

VPFC_OK > VPFC_OK_S OR

VCOMP < 2.3 V

2.2

Multiplier input

IMULT

Input bias current

VMULT = 0 to 3 V

-0.2

-1

µA

VMULT

Linear operation range

0 to 3

VCLAMP

Internal clamp level

IMULT = 1 mA

9.5

ΔVcs

ΔVMULT

Output max. slope

VMULT =0 to 0.4 V, VVFF = 0.8 V

VCOMP = Upper clamp

2.2

2.34

V/V

Gain (2)

VMULT = 1 V, VCOMP = 4 V

0.375 0.45 0.525

1/V

Error amplifier

VINV

Voltage feedback input threshold

TJ = 25 °C

2.475

2.5

2.525

10.3 V < Vcc < 22.5 V (3)

2.455

2.545

Line regulation

Vcc = 10.3 V to 22.5 V

IINV

Input bias current

TBO open, VINV = 0 to 4 V

-0.2

-1

µA

VINVCLAMP Internal clamp level

IINV = 1 mA

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