Holtek BS806B User manual

Brand: Holtek

Model: BS806B

Type: User manual

- 1 -

盛群半導體股份有限公司

HOLTEK SEMICONDUCTOR INC.

HOLTEK Touch Key IC Demo Board

BS806B

User Manual

● Demo Board–Top Side

- 2 -

●

Demo Board–Bottom Side

OKW Pin

Description

Touch PAD

Sensitivity Adjust

Connection

CR2032

Battery

Holder

Cref PAD

Sensitivity Adjust

Connection

VDD

KOUT0

KOUT1

KOUT2

KOUT3

OKW

KOUT3

KOUT2

KOUT1

KOUT0

VSS

OKW

VSS

VDD

KOUT4

KOUT5

KOUT4

KOUT5

LED1

R1 2.7K

Key0

IC1

BS806B_16NSOP

Key0

Key1

Key2

Key3

VDD

KOUT5

Cref

VSS

Key4

Key5

OKW

KOUT4

KOUT0

KOUT1

KOUT2

KOUT3

OKW

BAT1

CR2032

0.1uF

Key2

Key1

2.7K

LED2

4pF

N.C.

Cref

Key3

R3 2.7K

R4 2.7K

JP1

CON3

LED4

LED3

Key5

Key4

R6 2.7K

R5 2.7K

LED5

LED6

JP2

CON6

Open: One Key Wake up.

Short: Any Key Wake up.

- 3 -

● Pull out the insulator between battery and battery holder to power up

the Demo Board. (Ensure that not touching any component when

doing this.)

● Touch Key0 to wake up the Touch IC. (Default is in One-Key

wakeup mode after power on.).

● After a key touch action has been verified then the output indicator

LED1~6 and the KOUT0~5 pins will be activated with a LEVEL

HOLD output.

Touch Key Condition LED n

KOUT x pin status when

connected to pull-high

Key x is touched On 0V

Key x is not touched Off 3.0V

Note: “x” means 0, 1, 2, 3, 4 or 5; “n” means 1, 2, 3, 4, 5 or 6

● The OKW pin wake up control is described as following table:

OKW pin condition One Key wake up Any Key wake up

Ground -----

Floating

-----

● Using "Touch PAD sensitivity adjust connections" to modify the

sensitivity of each key.

● Verify the Touch Key sensitivity and response time.

● Determine the Sense PAD external casing material thickness.

● Determine the sense PAD area.

● Test the Touch Key IC Specification Characteristics.

● Provide the customer with a Touch Key related PCB Layout for consultation.

● Provide the customer with a demonstration and evaluation.

- 4 -

When in use the following problems may be encountered:

Problem Potential Solution

No actions after

battery is installed

Check that whether the battery is not inserted correctly

or with the wrong polarity, has poor contacts or has no

power.

Abnormal LED

action

When a touch action results in abnormal LED

illumination, re-install the battery to re-activate or wait

for about 40 seconds after which the LED will

automatically extinguish.

LED uneven The CR2032 is low on power and should be replaced.

● Accessories

BS806B Touch Key IC Demo Board (includes a BS806B 16NSOP IC) x 1

CR2032 Battery x 1

User Manual x 1

● Specifications

Model : BS806B_DemoV100

Keys : 6 KEY

Battery : CR2032 Lithium Battery

Power Consumption : 1.5μA ( One Key wakeup standby )

4.0μA ( Any Key wakeup standby )

14μA ( Normal Mode )

Size : 64mm (H) x 50mm (W) x 11mm (D)

For more information about the touch Key IC, please visit our web site at

http://www.holtek.com.tw/touchkey

Holtek BS806B User manual

Holtek BS806B User manual

Related papers

Other documents