L6986TR datasheet(8/68 Pages) STMICROELECTRONICS

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Electrical characteristics

L6986

8/68

DocID025376 Rev 7

Electrical characteristics

TJ = 25 °C, VIN = 12 V unless otherwise specified.

Table 5. Electrical characteristics

Symbol

Parameter

Test condition

Note Min.

Typ.

Max. Unit

VIN

Operating input voltage range

VINH

VCC UVLO rising threshold

2.7

3.5

VINL

VCC UVLO falling threshold

2.5

3.5

IPK

Peak current limit

Duty cycle < 40%

2.6

Duty cycle = 100%

closed loop operation

2.1

IVY

Valley current limit

2.7

ISKIP

Skip current limit

(1)

0.6

0.8

IVY_SNK

Reverse current limit

LNM or VOUT overvoltage

0.5

RDSON HS High-side RDSON

ISW = 1 A

0.18 0.360



RDSON LS Low-side RDSON

ISW = 1 A

0.15 0.300

fSW

Selected switching frequency

FSW pinstrapping before SS

see Table 6: fSW selection

IFSW

FSW biasing current

SS ended

500

LCM/LNM

Low noise mode /

Low consumption mode selection

MLF pinstrapping before SS

see Table 7: LNM / LCM

selection on page 12

IMLF

MLF biasing current

SS ended

500

Duty cycle

(2)

0100

TON MIN

Minimum On time

100

VCC regulator

VCC

LDO output voltage

VBIAS = GND (no switchover)

2.9

3.3

3.6

VBIAS = 5 V (switchover)

2.9

3.3

3.6

SWO

VBIAS threshold

Switch internal supply from

VIN to VBIAS

2.85

3.2

Switch internal supply from

VBIAS to VIN

2.8

3.15

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