MCP8021 datasheet(9/66 Pages) MICROCHIP

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DS20006265D-page 9

MCP8021/2

MOTOR CONTROL UNIT

Gate Output Drivers

Output Driver Source Current

ISOURCE

0.25

0.37

—

HS[A:C], LS[A:C] (Note 1)

Output Driver Sink Current

ISINK

0.3

0.49

—

HS[A:C], LS[A:C] (Note 1)

Output Driver Source Resistance RDSONSOURCE

—14



IOUT = -10 mA, HS[A:C],

LS[A:C]

Output Driver Sink Resistance

RDSONSINKLS

—



IOUT = 10 mA, LS[A:C]

Output Driver Sink Resistance

HS Dynamic

RDSONSINKHS-

DYN

—14



IOUT = 10 mA, HS[A:C],

t < 1 ms

Output Driver Sink Resistance

RDSONSINKHS

—



IOUT = 10 mA, HS[A:C]

Output Driver Fault Blanking

Time (UVLO and OCP); Set in

the DRVBL[1:0] bits (CFG2[1:0])

tBLANK

3900

4400

4900

00 – Default (Note 1)

2000

2200

2400

01 (Note 1)

900

1100

1300

10 (Note 1)

400

550

700

11 (Note 1)

Output Driver UVLO Threshold

VDUVLO

—

4.5

Configuration Register 0

(bit 3 = 0)

Output Driver PWM Dead Time;

Set in the DRVDT[2:0] bits

(CFG2[4:2])

tPWM_DEAD

1800

2000

2200

000 – Default (Note 1)

1550

1750

1950

001 (Note 1)

1350

1500

1650

010 (Note 1)

1100

1250

1400

011 (Note 1)

900

1000

1150

100 (Note 1)

650

750

900

101 (Note 1)

450

500

650

110 (Note 1)

200

250

350

111 (Note 1)

Output Driver Propagation Delay

Time On

tGATE_PROP_ON

—

From PWMxy active to

HSx/LSx > 10% (Note 1)

Output Driver Propagation Delay

Time Off

tGATE_PROP_OFF

—

From PWMxy inactive to

HSx/LSx < 90% (Note 1)

Output Driver HS Drive Voltage

VHS

4.5

12.5

With respect to Phase pin

(Note 1)

Output Driver LS Drive Voltage

VLS

4.5

12.5

With respect to ground (Note 1)

Output Driver Short-Circuit

Protection Threshold

(High-Side: VDD – VPHX),

(Low-Side: VPHX – PGND); Set

in the EXTOC[1:0] bits

(CFG0[1:0])

DSC_THR

0.230

0.250

0.270

00 – Default (Note 1)

0.470

0.500

0.530

01 (Note 1)

0.720

0.750

0.780

10 (Note 1)

0.960

1.000

1.040

11 (Note 1)

Output Driver Short-Circuit Filter

Time

TSC_DLY

230

—

600

CLOAD = 1000 pF, VDD = 12V,

detection after filtering (Note 1)

Filter Time for All Other Faults

TFLT_DLY

1400

—

3600

Note 1

Power-Up or Sleep to Standby

tPOWER

—5

—

IVREG =70 mA

AC/DC CHARACTERISTICS (CONTINUED)

Electrical Specifications: Unless otherwise noted: TJ = -40°C to +150°C; typical values are for +25°C, VDD = 13.5V,

CVBOOT = 4.7 µF, CVREG =4.7 µF, CCP = 220 nF.

Parameter

Sym.

Min.

Typ.

Max.

Units

Conditions

Note 1: Limits based on design, simulation or characterization. Not production tested.

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