Block diagram and pin configuration

L4989D, L4989MD

6/19

DS8714 Rev 3

Figure 2. Pins configuration (top view)

Vo

717

Voltage regulator output

Block to ground with a capacitor >100 nF (needed for regulator

stability)

VS

820

Supply voltage

Block to ground directly at IC pin with a capacitor

N.C.

2, 3, 8, 9, 12, 13,

18, 19

Not connected

Table 2. Pins description (continued)

Pin name

SO-8(D)

S0-20(MD)

Function

WEn

GND

Res

Vcr

1

2

3

4

5

6

7

8

Vs

Vo

Wi

Vcw

WEn

N.C.

N.C.

GND

GND

GND

Res

N.C.

N.C.

Vcr

10

9

8

7

6

5

4

3

2

1

20

N.C.

N.C.

Vo

GND

GND

Wi

N.C.

N.C.

Vcw

11

12

13

14

15

16

17

18

19

Vs

SO-8

SO-20

GAPGCFT00666