Datasheet > AS3668-BWLT

AS3668-BWLT

更新时间： 2022-05-11 01:13:01

品牌	Logo	应用领域
艾迈斯 - AMSCO		控制器
页数	文件大小	规格书
59页	1090K
描述
4 Channel Breathlight Controller

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AS3668-BWLT 数据手册

AS3668

Data Sheet - Electrical Characteristics

6 Electrical Characteristics

VBAT = 3.6V, CBAT = CVCPOUT = 1μF, CFLY = 470nF, TAMB = -30ºC to +85ºC, typical values @ TAMB = +25ºC (unless

otherwise specified) .

Table 3. Electrical Characteristics

Symbol

Parameter

Condition

Min

2.7

Typ

Max

Unit

General Operating Conditions

VBAT

Supply Voltage

5.5

Standby supply current

SCL = 0V and GPIO = 0V

0.2

μA

SCL = VBAT and SDA = VBAT, no I2C communication

μA

and no internal block enabled

IVBAT

Normal Mode supply

current

Charge pump in 1x mode, no load, current source outputs

disabled

Charge pump in 2x mode, no load, current source outputs

disabled

2.5

Internal Oscillator

fOSC

-10

-30

+10

Frequency Accuracy

Operating Temperature¹

TAMB

°C

Charge Pump

Operating Mode 1:1

Charge Pump Output

Resistance

ROUT

fSW



Operating Mode 1:2; VBAT = 3.0V

Switching Frequency

MHz

no load, current sources CURR1 - CURR4 deactivated

μs

VCP Turn-On Time²

tON

IOUT = 50mA, current sources CURR1 - CURR4

μs

deactivated

Current Sources

Leakage Current

(LED1 to CURR4)

ILEAK

PWM = 0%

0.1

μA

IMAX

IOUT

Maximum Source Current

Output Current Accuracy

Matching Accuracy

Outputs CURR1 to CURR4

Output Current set to 25.5 mA

PWM mode with internal oscillator

25.5

-15

-10

+15

+10

IMATCH

fLED

Switching Frequency

122

Logic Interface

Logic Input SCL, SDA and GPIO/AUDIO_IN

VIL

VIH

Input Low Level

Input High Level

Input Current

0.52

VBAT

1.0

1.38

-1.0

IIN

μA

VOLGPIO

VHYS

Low Level Output voltage

Hysteresis

Pin GPIO/AUDIO_IN at 4mA

0.2

0.1

fEXT

External PWM input

Only possible with GPIO/AUDIO_IN

MHz

Analogue Input

Analogue Audio Input GPI/AUDIO_IN

VAUDIO

Input Signal Level

2.5

VPEAK

kΩ

Audio Preamplifier Gain = -6dB

Audio Preamplifier Gain = +20dB

400

RAUDIO_IN

Audio Input Resistance

kΩ

www.ams.com/AS3668

Revision 1.13

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