MOTOROLA

2

P4SMA16AT3

APPLICATION DIAGRAMS

Back to back P4SMA16AT3 devices prevent ESD transient damage to the controller on both communication bus and power supply lines.

CONTROLLER

SUPPLY

CPU

Bus Line

BUS LINE PROTECTION

CONTROLLER

SUPPLY

Vbatt

BATTERY PROTECTION

RATING AND TYPICAL CHARACTERISTIC CURVES (TA = 25°C)

Figure 1. Typical Pulse Rating Curve

Figure 2. Pulse Waveform

Figure 3. Typical Junction Capacitance

Figure 4. Breakdown Voltage Curve

600

500

400

300

200

100

0

5

10

REVERSE VOLTAGE (VOLTS)

16

15.7

0.1

100

IT, TEST CURRENT (mA)

TJ = 25°C

f = 1.0 MHz

15

0.01

10

0.1

1

10

1

0.1

0.01

TP, PULSE WIDTH (ms)

NONREPETITIVE, EXPONENTIAL

PULSE WAVEFORM, TJ = 25°C

TA = 25°C

PW (ID) IS DEFINED AS THE

POINT WHERE THE PEAK CURRENT

DECAYS TO 50% OF Ipp.

= 10

µs

PEAK VALUE

Ippm

HALF VALUE – Ipp/2

10/1000

µs WAVEFORM

AS DEFINED BY R.E.A.

td

120

100

80

60

40

0

0

1

2

3

4

t, TIME (ms)

20

5

10

1

15.75

15.8

15.85

15.9

15.95

700