Copyright

© ANPEC Electronics Corp.

Rev. P.1 - Sep, 2015

www.anpec.com.tw

6

APL3538

Preliminary

Timing Chart

Figure 1. t

Note4: Rise and fall times of the control signal is 100ns.

Pin Descriptions

PIN

NO.

NAME

Function

1, 14

VIN1

Power supply Input of switch 1. Connect this pin to an external DC supply.

2

GND

Power supply Input of switch. Connect this pin to an external DC supply.

3

VDD

VDD voltage input pin for internal control circuitry. Connecting this pin to a 5V or 3.3V supply voltage provides

the bias for the control circuitry and charge pump.

4, 5

VIN2

Power supply Input of switch 2. Connect this pin to an external DC supply.

EN2

Enable input of switch 2. Logic high turns on switch. The EN2 pin cannot be left floating.

6

ENB2

Enable input of switch 2. Logic low turns on switch. The ENB2 pin cannot be left floating.

7, 8

VOUT2

Output of switch 2. The output voltage follows the input voltage. When EN2 is low or ENB2 is high, the output

voltage is discharged by an internal resistor.

9

SS2

Soft start control of switch 2. A capacitor from this pin to ground sets the VOUT

’s rise slew rate.

10

SS1

Soft start control of switch 1. A capacitor from this pin to ground sets the VOUT

’s rise slew rate.

11, 12

VOUT1

Output of switch 1. The output voltage follows the input voltage. When EN1 is low or ENB1 is high, the output

voltage is discharged by an internal resistor.

EN1

Enable input of switch 1. Logic high turns on switch. The EN1 pin cannot be left floating.

13

ENB1

Enable input of switch 1. Logic low turns on switch. The ENB1 pin cannot be left floating.

90%

90%

10%

10%

50%

50%

50%

50%