Preliminary Datasheet

Octave Remote Resistor-programmable Temperature Switches

AP2602

Feb. 2012

Rev. 1. 0

BCD Semiconductor Manufacturing Limited

2

Pin Configuration

FN Package

(QFN-3X3-16)

Note 1: Recommend connecting the thermal pad to GND for excellent power dissipation.

Figure 2. Pin Configuration of AP2602 (Top View)

Pin Description

Pin

Number

Pin

Name

Function

1

VTRIG

Input of external setting trigger voltage

2

VCC

Power-supply input

3

GND

Ground

4

SEL

Connect SEL to GND to select external trigger voltage, while connecting

SEL to VCC to select internal trigger voltage. Don’t leave the pin floating

5,7,8,10,

11,13,14,16

TMSNSX

Connect an external 1% resistor from TMSNSX to GND to set trigger point

of remote temperature sensorX

6,9,12,15

OTXY

__________

Open-Drain, active low, over-temperature output for sensor 1, 2, sensor 3,

4, sensor 5, 6, sensor 7, 8 respectively. The OTXY

__________

outputs are the wire-or

results of sensorX and sensorY

EP

56

7

8

13

14

15

16

1

2

3

49

10

11

12

Pin 1 Mark

VTRIG

VCC

GND

SEL

OT12

TMSNS1

TMSNS8

OT78