Rev. C 05/15

2

SEN012-013

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Figure 4. SENZero Functional Block Diagram

Figure 5. Pin Configuration.

Figure 6. Typical R

DS(ON) as a Function of VCC-VS Voltage.

Figure 7.

Typical R

DS(ON) as a Function of VS Voltage.

Pin Functional Description

SOURCE (S1, S2, S3) Pins:

Internally connect to the SOURCEs of MOSFETs 1, 2 and 3

respectively.

DRAIN (D1, D2, D3) Pins:

Internally connect to the DRAINs of MOSFETs 1, 2 and 3 respectively.

VOLTAGE SUPPLY (VCC) Pin:

The internal MOSFETs are fully turned on when the VCC pin voltage is

V

CC(ON) (see parameter table) or more greater than their SOURCE

voltage relative to GROUND. VCC pin should be connected to

GROUND to turn the MOSFETs off.

GROUND (G) Pin:

This is the ground reference for all the SENZero pin voltages.

PI-5814-051710

SEN012DG

D Package (SO-8)

SEN013DG

S1

D1

NC

S2

1

2

3

4

8

7

6

5

VCC

G

NC

D2

S1

D1

D2

S2

1

2

3

4

8

7

6

5

VCC

G

D3

S3

PI-5815-012810

DRAIN1 (D1)

DRAIN2 (D2)

DRAIN3 (D3)

GROUND (G)

SUPPLY (VCC)

Gate Drive

and

Protection

SOURCE3 (S3)

SOURCE2 (S2)

SOURCE1 (S1)

STEP

DOWN

4

6

7

11

10

8

5

9

VCC-VS (V)

650

600

550

500

450

400

350

300

VS = 0

VS = 3

VS = 6.5

TJ = 25 °C

0

1

3

4

7

6

2

5

VS (V)

550

500

450

400

350

VCC-VS = 6 V

VCC-VS = 5 V