MP6543 – 12V, 2A, THREE-PHASE POWER STAGE

MP6543 Rev. 1.01

www.MonolithicPower.com

5

1/15/2020

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© 2020 MPS. All Rights Reserved.

ELECTRICAL CHARACTERISTICS

VIN = 10V, TA = 25°C, LSS = GND = 0V, unless otherwise noted.

Parameter

Symbol

Condition

Min

Typ

Max

Units

Power Supply

Input supply voltage

VIN, VIN_LDO

3

12

V

Quiescent current

I

Q

nSLEEP = 1, ENx = 0

2.5

3.2

mA

I

SLEEP

nSLEEP = 0

45

60

µA

Control Logic

Input logic low threshold

VIL

0.4

V

Input logic high threshold

VIH

1.5

V

Logic input current

IIN(H)

V = 3.3V

-20

20

µA

IIN(L)

V = 0V

-20

20

µA

Power-up delay

tPUD

At VIN rising or

nSLEEP rising

1.5

ms

Internal pull-down

resistance

R

PD

All logic Inputs

500

kΩ

nFAULT pull-down RON

R

ON(NFAULT)

15

Ω

V3P3 REGULATOR

LDO output

IOUT = 0 to 100 mA

3.3

3.45

3.6

V

Protection Circuits

UVLO threshold

V

UVLO

VIN rising

2.5

2.7

2.9

V

UVLO hysteresis

∆V

UVLO

150

mV

OCP threshold

I

OCP

ROCP = 0

4.7

6.2

8

A

ROCP = float

5.5

7.2

9

A

OCP deglitch time

tOCD

1

µs

Thermal shutdown (6)

TTSD

TJ rising

160

o

C

Thermal shutdown

hysteresis (6)

∆TTSD

25

o

C

Current Sense

Current-sense ratio

1/3600

1/4000

1/4400

A/A

Current-sense output

current

LS-FET current = 1A

225

250

275

µA

LS-FET current = -1A

-275

-250

-225

µA

Current-sense output

current

LS-FET current = 100mA

22.5

25

27.5

µA

LS-FET current = -100mA

-27.5

-25

-22.5

µA

Positive and negative

matching (ratio of

positive to negative)

LS-FET current = ±1A,

±100mA

95%

1

105%

Phase matching (ratio of

phase to phase)

LS-FET current = ±1A,

±100mA

95%

1

105%

Current-sense output

voltage swing

LS-FET current = ±0.25A

0

3.6

V

Output

HS-FET on resistance

RON(HS)

IOUT = 1A

90

110

135

mΩ

LS-FET on resistance

RON(LS)

IOUT = 1A

85

105

125

Output rise time (6)

RLOAD = 50Ω

25

ns

Output fall time (6)

RLOAD = 50Ω

25

ns

Dead time (6)

RLOAD = 50Ω

40

ns