AK8973 Просмотр технического описания (PDF) - Asahi Kasei Microdevices

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производитель

AK8973

3-axis Electronic Compass

Asahi Kasei Microdevices 

ASAHI KASEI

[AK8973]

5. Overall Characteristics

5.1. Absolute Maximum Ratings

VSS=0V

Parameter

Symbol

Min.

Max.

Unit

Power supply voltage

V+

-0.3

+6.5

V

(VDD, VID)

Input voltage

VIN

-0.3

(V+)+0.3

V

Input current

IIN

-

±10

mA

Storage temperature

TST

-40

+85

°C

Note If the device is used in conditions exceeding these values, the device may be destroyed. Normal operations

and EEPROM data are not guaranteed in such exceeding conditions.

5.2. Recommended Operating Conditions

VSS=0V

Parameter

Operating

temperature

Power supply

voltage

Remark

VDD pin voltage

VID pin voltage

Symbol

Ta

VDD

VID

Min.

-30

2.5

1.70

Typ.

3.0

1.85

Max.

Unit

+85

°C

3.6

V

VDD

V

Note When turning on/off the power, turn on/off VDD and VID at the same time. .

5.3. Electrical Characteristics

The following conditions apply unless otherwise noted:

VDD=2.5V to 3.6V, VID=1.7V to VDD, Temperature range=-30°C to 85°C

5.3.1. DC Characteristics

Parameter

Symbol Pin

Condition

Min.

Typ.

Max. Unit

High level input voltage 1 VIH1 SCL

70%VID

V

SDA

Low level input voltage 1

VIL1 CAD0

CAD1

30%VID V

High level input voltage 2 VIH2 RSTN

80%VID

V

Low level input voltage 2

VIL2

20%VID V

Input current (Note 1)

IIN

SCL Vin=VSS or VID

-10

SDA

+10

μA

CAD0

CAD1

RSTN

Hysteresis input voltage VHS SCL VID≥2V

5%VID

V

(Note 2)

SDA VID<2V

10%VID

V

High level output voltage 1 VOH1 INT IOH=-200µA (Note 5) 90%VID

V

Low level output voltage 1 VOL1

IOL=+200µA (Note 5)

0.4

V

Low level output voltage 2

(Note 3)(Note 4)

VOL2

SDA IOL=3mA VID≥2V

IOL=3mA VID<2V

0.4

V

20%VID V

Current consumption

IDD1

In power-down mode

0.2

5

μA

IDD2

When magnetic

6.8

10.2

mA

sensor is driven

IDD3

Average when reading

0.8

1.2

mA

with 100ms

(Note 1) Maximum input pin capacitance: 10pF (reference value for design)

(Note 2) Applied to the SCL pin and SDA pin (Schmitt trigger input) (reference value for design)

(Note 3) Maximum load capacitance: 400pF (capacitive load of each bus line applied to the I2C bus interface)

(Note 4) Output is open-drain output. Connect a pull-up resistor externally.

(Note 5) Load capacitance: 20pF

MS0561-E-01 <Preliminary>

-8-

2007/01

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