MB39C502 datasheet(21/46 Pages) CYPRESS

21 / 46 page

Document Number: 002-08449 Rev *A

Page 21 of 46

MB39C502/503/504

VIN = 7.4V, VOUT, BST and EN connect to 5V power supply, PGND, LX = 0V. TA = –30°C to +85°C, unless otherwise

noted.

(MB39C504)

Parameter

Symbol

Condition

Value

Unit

Min

Typ

Max

5V LDO

Output voltage

VLDO5

No switchover.

VOUT input voltage < 4.4V

4.75

5.00

5.25

Output current

ILDO5

No switchover.

VVIN = 5.4V

Output short current

ILDO5S

No switchover.

VLDO5 = 0V

125

Switchover voltage

VSWOVR

VOUT voltage rising.

4.35

4.50

4.60

VHYS

Hysteresis voltage.

0.08

0.10

0.12

Startup time

tSLDO5

LDO5 voltage reaches to 4.2V.

CLDO5, CVCC = 1.0μF

100

150

400

μs

DRIVER

High side on resistance

RHOH

At 100mA current sourcing

3(*1)

RHOL

At 100mA current sinking

1(*1)

Low side on resistance

RLOH

At 100mA current sourcing

4(*1)

RLOL

At 100mA current sinking

0.75(*1)

High side source current

ISRCH

VDRVH = 2.5V

0.7(*1)

High side sink current

ISINKH

VDRVH = 2.5V

1.1(*1)

Low side source current

ISRCL

VDRVL = 2.5V

0.5(*1)

Low side sink current

ISINKL

VDRVL = 2.5V

1.7(*1)

Dead time

tDEAD

From DRVH turn off to DRVL turn on.

And reverse it.

BOOST SWITCH

Boost switch on resistance

RBST

IBST = 10mA

BST leak current

ILKBST

VBST = 30V

0.1

1.0

μA

*1: No production tested, ensure by design.

MB39C502 Datasheet(PDF) 21 Page - Cypress Semiconductor

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