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AS3490

Datasheet - P i n o u t

4 Pinout

Pin Assignment

Figure 2. Pin Assignments (Top View)

Pin Description

Table 1. WL-CSP12 Pin Description

Pin Number

Pin Name

Description

A1

VIN

Positive supply voltage input - connect to supply and make a short connection

A2

ISET

External current set resistor, forced to 1.25V in operation - LED current

typically 400xISET current

A3

LED1

Current source output 1 - controlled by ON

B1

ON

Digital input pin - enable input active high for current sources D1...D3

1

1. If ON is low low, the AS3490 enters shutdown.

B2

GND

Supply ground - connect to ground supply

B3

LED2

Current source output 2 - controlled by ON

C1

GND

Supply ground - connect to supply and make a short connection to input

C2

GND

Supply ground - connect to ground supply

C3

LED3

Current source output 3 - controlled by ON

D1

SW

DCDC converter switching node

D2

VOUT

D3

VOUT

Connect directly to Ball D2











 









 



































 

 



 

















 

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AS3490

AS3490