PM6675AS datasheet(10/48 Pages) STMICROELECTRONICS

10 / 48 page

Electrical characteristics

PM6675AS

10/48

Table 6.

Electrical characteristics (continued)

TA = -25 °C to 85 °C , VCC = AVCC = +5 V, LIN = 1.5 V and LOUT= 0.6 V if not otherwise

specified. (1)

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

Current limit and zero crossing comparator

ICSNS

CSNS input bias current

100

110

µA

Comparator offset

-6

Positive current limit threshold

VPGND - VCSNS

100

fixed negative current limit

threshold

110

VZC,OFFS

Zero crossing comparator offset

-11

-5

High and low side gate drivers

HGATE driver on-resistance

HGATE high state (pullup)

2.0

Ω

HGATE low state (pulldown)

1.8

2.7

LGATE driver on-resistance

LGATE high state (pullup)

1.4

2.1

LGATE low state (pulldown)

0.6

0.9

UVP/OVP protections and PGOOD signals

OVP

Over voltage threshold

112

115

118

UVP

Under voltage threshold

PGOOD

SMPS upper threshold

107

110

113

SMPS lower threshold

LDO upper threshold

107

110

113

LDO lower threshold

IPG,LEAK

SPG and LPG leakeage current

SPG and LPG forced to 5.5 V

µA

VPG,LOW

SPG and LPG low level voltage

ILPG,SINK = ISPG,SINK = 4 mA

150

250

Soft-start section (SMPS)

Soft-start ramp time

(4 steps current limit)

Soft-start current limit step

µA

Soft end section

Switching section discharge

resistance

Ω

LDO section discharge resistance

LDO section

VLREF

LDO reference voltage

600

LDO output accuracy respect to

VREF

-1 mA < ILDO < 1 mA

-20

-1 A < ILDO < 1 A

-25

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