UCC27221

UCC27222

SLUS486B − AUGUST 2001 − REVISED JULY 2003

4

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ELECTRICAL CHARACTERISTICS

VDD = 12-V, 1-µF capacitor from VDD to GND, 1-µF capacitor from VHI to SW, 0.1-µF and 2.2-µF capacitor from PVLO to PGND, PVLO tied to

VLO, TA = −40_C to 105_C for the UCC2722x, TA = TJ (unless otherwise noted)

G1 main output

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Sink resistance

SW = 0 V,

VHI = 6 V,

IN = 0 V,

G1 = 0.5 V

0.3

0.9

1.5

Ω

Source resistance(2)

SW = 0 V,

VHI = 6 V,

IN = 6.5 V,

G1 = 5.5 V

10

25

45

Ω

Source current(1)(2)

SW = 0 V,

VHI = 6 V,

IN = 6.5 V,

G1 = 3.0 V

−3

−3.3

A

Sink current(1)(2)

SW = 0 V,

VHI = 6 V,

IN = 0 V,

G1 = 3.0 V

3

3.3

A

Rise time

C = 2.2 nF from G1 to SW,

VDD = 20 V

17

25

ns

Fall time

C = 2.2 nF from G1 to SW,

VDD = 20 V

17

25

ns

G2 SR output

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Sink resistance(2)

PVLO = 6.5 V,

IN = 6.5 V,

G1 = 0.25 V

5

15

30

Ω

Source resistance(2)

PVLO = 6.5 V,

IN = 0 V,

G2 = 6.0 V

10

20

35

Ω

Source current(1)(2)

PVLO = 6.5 V,

IN = 0 V

G2 = 3.25 V

−3

−3.3

A

Sink current(1)(2)

PVLO = 6.5 V,

IN = 6.5 V

G2 = 3.25 V

3

3.3

A

Rise time(2)

C = 2.2 nF from G2 to PGND VDD = 20 V

17

25

ns

Fall time

C = 2.2 nF from G2 to PGND VDD = 20 V

20

35

ns

deadtime delay

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

tOFF, G2, IN to G2 falling

60

80

100

tOFF, G1, IN to G1 falling

55

80

110

Delay Step Resolution

3.5

4.1

4.7

tON, G1 minimum

−15

ns

tON, G1 maximum

48

ns

tON, G2 minimum

−21

tON, G2 maximum

38

NOTE 1: Ensured by design. Not production tested.

2: The pullup / pulldown circuits of the drivers are bipolar and MOSFET transistors in parallel. The peak output current rating is the

voltage on the driver output is less than the saturation voltage of the bipolar transistor.

UDG−01042

UCC27222

tOFF,G1

tOFF,G2

tON,G1

tON,G2

IN

G1

G2

3.25 V

10%

90%

90%

10%

Figure 1. Predictive Gate Drive Timing Diagram

UCC27221

Not Recommended For New Designs