PM6686 datasheet(14/50 Pages) STMICROELECTRONICS

14 / 50 page

Electrical characteristics

PM6686

14/50

Doc ID 15281 Rev 4

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

Output undervoltage

shutdown threshold

Referred to FB1, REFIN2 nominal

regulation point

Inputs and outputs

FB1

FB1 logic level

fixed OUT1 = 5 V

0.528

fixed OUT1 = 1.5 V

4.1

REFIN2

REFIN2 logic level

fixed OUT2 = 1.05 V, VCC = 5 V

VREF3

fixed OUT 2= 3.3 V, VCC = 5 V

VCC-

0.838

LDOREFIN LDOREFIN logic level

fixed LDO = 5 V

0.4

fixed LDO = 3.3 V

2.43

SKIP

SKIP logic level

Pulse skip mode

0.8

No audible skip mode (VREF2 or floating)

VREF2

PWM mode

2.4

TON

TON logic level

Low level

0.8

Middle level

VREF2

High level

2.4

EN1,2

EN level

Switching regulators off level

0.8

Delay start level

VREF2

Switching regulators on level

2.4

EN_LDO

EN_LDO level

Linear regulator off level

0.905

1.00

1.050

Linear regulator on level

1.500

1.6

1.650

Input leakage current

FB1 = 0.7 V

-1

µA

REFIN2 = 2.5 V

Internal bootstrap diode

Diode forward voltage

PVCC = -BOOT, Idiode = 10 mA

0.2

Diode Leakage current

BOOT= 30 V, PHASE = 28 V, PVCC = 5 V

500

High-side and low-side gate drivers

HGATE driver on-resistance

HGATEx high state (pull-up)

Isource = 100 mA

1.8

HGATEx low state (pull-down)

Isink = 100 mA

1.3

1.9

LGATE driver on-resistance

LGATEx high state (pull-up)

Isource = 100 mA

1.3

LGATEx low state (pull-down)

Isink = 100 mA

0.6

0.8

Table 6.

Electrical characteristics (continued)

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