NOA1305

http://onsemi.com

2

Figure 1. Typical Application Circuit

SDA

SCL

VDD

VSS

R1

1k

R2

1k

Vin = 2.0 to 3.6 V

IC1

NOA1305

MCU

SDA

SCL

all parasitic capacitances

INT

R3

1k

INT

5

3

4

6

1

C1

10 m

hn

C2

10 m

Figure 2. Simplified Block Diagram

Photo

Diode

Reference

Diode

ADC

SDA

SCL

INT

Osc

I2C Interface

&

Control

ADC

&

Control

hn

Table 1. PIN FUNCTION DESCRIPTION

Pin

Pin Name

Description

1

VSS

Ground pin.

2

NC

No connection.

3

SCL

4

SDA

pull−up resistor.

5

INT

Interrupt request to the host. Programmable active state, open−drain output and requires an external

1kW pull−up resistor.

6

VDD

Power pin.

Table 2. ABSOLUTE MAXIMUM RATINGS

Rating

Symbol

Value

Unit

Input power supply

VDD

4.0

V

Input voltage range

−0.3 to VDD + 0.2

V

Output voltage range

−0.3 to VDD + 0.2

V

Maximum Junction Temperature

85

°C

Storage Temperature

−40 to 85

°C

ESD Capability, Human Body Model (Note 1)

2

kV

ESD Capability, Charged Device Model (Note 1)

750 (corner pins), 500 (center pins)

V

ESD Capability, Machine Model (Note 1)

200

V

Moisture Sensitivity Level

MSL

5

−

Lead Temperature Soldering (Note 2)

260

°C

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the

Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect

device reliability.

1. This device incorporates ESD protection and is tested by the following methods:

ESD Human Body Model tested per EIA/JESD22−A114

ESD Charged Device Model tested per ESD−STM5.3.1−1999

ESD Machine Model tested per EIA/JESD22−A115

Latchup Current Maximum Rating: ≤ 100 mA per JEDEC standard: JESD78

2. For information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D