Characteristics Applications

2021 HOLTEK New Product Presentation

Block Diagram

Proximity Sensing Can Lid BS45F3336

C04

Trash cans, soup dispensers, water taps, etc.■ Constant current to drive IR LEDs directly

■ Dedicated sensing AFE, reduced external component count

■ Touch keys for product designs

■ H-Bridge to directly drive DC motors or solenoid valves

■ Sensing distance up to 40cm

■ Average current consumption lower than 40μA

IR LED RXIR LED TX

6.0V

HT7533

VVi Vo

BS45F3336

Indicator

DC Motor

Touch Keys

1

1

2

2

3

3

4

4

5

5

6

6

D D

C C

B B

A A

GND

GND

R41k

C20.1uf

C30.1uf

C410uf

1

VOUT3

VIN2

U2

HT7133

C50.1uf

C60.1uf

C847uf

T_LED

R_LED

R6200K

R5200K

C11

150pf

GND

R3

1k

C70.1uf

Vibration

GND

LED1

R1

330R

M1motor

C120.1uf

C1310pf

GND

R90.47R

VDD

TOUCH_KEY

VDD

C10100uf

VBAT

PGND

VBAT

C90.1uf

PGND

R7

1k

PGND

C140.1uf

PGND

VBAT

VDD

PA2/OPDAN/[VBAT]/ICPCK/OCDSCL23

PA1/OPDAO/AN1/[CTP]24

PA3/OPDAP22

PA5/CTCK21

PA6/[OPDAP]/AN2/CTPB 20

PA0/INT/AN0/[CTP]/ICPDA/OCDSDA 19

OUT1 18

PGND 17

OUT2 14

VM 13

HBVDD12

HBVSS11

PA7/AN310

VDD/AVDD9

VSS8

AVSS7

ISINK06

ISINK15

PA4/VBAT 4

PB2/KEY1/VREF2

PB4/CTP 1

PB3/KEY23

NC15

NC16

BS45F3336

R8620K

R10330K

PGND

C150.1uf

PGND

C110uf

R2

0R

PGND

GND

VBAT