LED Driver. BU16501KS2 Datasheet

BU16501KS2 Driver. Datasheet pdf. Equivalent

BU16501KS2 Datasheet
Recommendation BU16501KS2 Datasheet
Part BU16501KS2
Description LED Driver
Feature BU16501KS2; Datasheet LED Driver with I2C Compatible and 3-wire Serial Interface for 8×16 LEDs in Dot Matrix B.
Manufacture ROHM
Datasheet
Download BU16501KS2 Datasheet




ROHM BU16501KS2
Datasheet
LED Driver with I2C Compatible
and 3-wire Serial Interface
for 8×16 LEDs in Dot Matrix
BU16501KS2
General Description
BU16501KS2 is “Matrix LED Driver” that is the most
suitable for Home Appliance.
It can control 8x16 (128 dot) LED Matrix by internal
8-channel PMOS SWs and 16-channel LED drivers.
It can control the brightness in each dot by the setting
of the internal register.
It supports SPI and I2C interface.
Features
LED Matrix driver (8x16)
It has 8-channel PMOS SWs and
16-channel current drivers with 1/8
TDM timing driven sequentially.
Put ON/OFF (for every dot)
The current drivers can drive from 0
to 20.00mA current with “16” steps(for
every dot)
The current drivers can drive
maximum 42.5mA/Line (ISET=47k)
64 steps of the luminance control by
PWM (common setting for all dots)
Interface
SPI and I2C BUS FS mode (max 400
kHz) Compability.
For I2C mode, I2C Device address is
selectable (74h or 75h).
Thermal Shutdown
Key Specifications
Operating power supply voltage range: 2.7V to 5.5V
Oscillator frequency:
1.2MHz (Typ.)
Operating temperature range:
-40to +85
Package(s)
SQFP-T52M
SQFP-T52
W(Typ) x D(Typ) x H(Max)
12.00mm x 12.00mm x 1.60mm
12.00mm x 12.00mm x 1.50mm
Applications
Mobile phone, portable device, home electrical
appliance, and general consumer equipment.
Device provided with LED display application.
LED display.
Amusement, Traffic Signboards, hobby, etc.
Pin Configuration(s)
39
40
N.C.
ISET
LED9
LED8
LED7
LED6
LED5
LEDGND3
N.C.
LED4
LED3
LED2
LED1
52
1
27
26
CLKIO
TESTO
SDA
CE
GND3
SCL
VIO
RESETB
GND2
IFMODE
VBAT3
VBAT2
SYNC
14
13
Product structureSilicon monolithic integrated circuit
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product is not designed protection against radioactive rays
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14.Mar.2016 Rev.003



ROHM BU16501KS2
BU16501KS2
Typical Application Circuit(s)
VBAT
VBAT1
VBAT2
VBAT3
10µF
ISET
100k
VIO
1µF
RESETB
CE
I2C or SPI
selectable
SDA
SCL
IFMODE
SYNC
CLKIO
BU16501KS2
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
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Datasheet
VINSW
VINSW 1
VINSW 2
SW8
SW7
SW6
SW5
SW4
SW3
SW2
SW1
10μF
LED16
LED15
LED14
LED13
LED12
LED11
LED10
LED9
LED8
LED7
LED6
LED5
LED4
LED3
LED2
LED1
8×16
Dot Matrix Unit
X
Matrix Direction Y
TSZ02201-0G3G0CZ00250-1-2
14.Mar.2016 Rev.003



ROHM BU16501KS2
BU16501KS2
Datasheet
Pin Description(s)
No Pin Name I/O
1 LEDGND1
2 SW1
3 SW2
4 SW3
5 VINSW1
6 VINSW2
7 SW4
8 SW5
9 SW6
10 SW7
11 SW8
12 NC
13 GND1
14 SYNC
15 VBAT2
16 VBAT3
17 IFMODE
18 GND2
19 RESETB
20 VIO
21 SCL
22 GND3
-
O
O
O
-
-
O
O
O
O
O
-
-
I
-
I
-
I
-
I
-
23 CE
I
24 SDA I/O
25 TESTO O
26 CLKIO I/O
27 TEST1
I
28 NC
-
29 LED16
O
30 LED15
O
31 LED14
O
32 LEDGND2 -
33 LED13
O
34 LED12
O
35 LED11
O
36 LED10
O
37 VBAT1
-
38 GND4
-
39 GND5
-
40 NC
-
41 ISET
I
42 LED9 O
43 LED8 O
44 LED7 O
45 LED6 O
46 LED5 O
47 LEDGND3 -
48 NC
-
49 LED4 O
50 LED3 O
51 LED2 O
52 LED1 O
Pull
down
Unused
processing
setting
ESD Diode
For Power For Ground
Functions
Equivalent
Circuit
- - VBAT - Ground
-
VINSW
VINSW
GND P-MOS SW1 output
-
VINSW
VINSW
GND P-MOS SW2 output
-
VINSW
VINSW
GND P-MOS SW3 output
--
- GND Power supply for SW1-8
--
- GND Power supply for SW1-8
-
VINSW
VINSW
GND P-MOS SW4 output
-
VINSW
VINSW
GND P-MOS SW5 output
-
VINSW
VINSW
GND P-MOS SW6 output
-
VINSW
VINSW
GND P-MOS SW7 output
-
VINSW
VINSW
GND P-MOS SW8 output
- - - --
- - VBAT - Ground
B
C
C
C
A
A
C
C
C
C
C
-
B
- GND VBAT GND External synchronous input pin
D
-
-
-
-
-
-
-
-
-
-
-
500
94k
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
GND
-
GND
-
-
-
GND
-
OPEN
OPEN
GND
-
GND
GND
GND
-
GND
GND
GND
GND
-
-
-
-
-
GND
GND
GND
GND
GND
-
-
GND
GND
GND
GND
-
-
VBAT
VBAT
VBAT
VBAT
VBAT
VBAT
VBAT
VBAT
VBAT
VBAT
VBAT
-
-
-
-
VBAT
-
-
-
-
-
VBAT
VBAT
-
VBAT
-
-
-
-
-
VBAT
-
-
-
-
-
GND
GND
GND
-
GND
GND
GND
-
GND
GND
GND
GND
GND
-
GND
GND
GND
-
GND
GND
GND
GND
GND
-
-
-
GND
GND
GND
GND
GND
GND
-
-
GND
GND
GND
GND
Battery is connected
Battery is connected
I2C/SPI select pin (L: I2C, H: SPI)
Ground
Reset input pin (L: reset, H: reset cancel)
I/O Power supply is connected
SPI, I2C CLK input pin
Ground
SPI enable pin(H;Enable), or
I2C slave address selection (L: 74, H: 75)
SPI DATA input / I2C DATA input-output pin
Test output pin1
Reference CLK input / output pin
Test input pin 1
-
LED16 driver output
LED15 driver output
LED14 driver output
Ground
LED13 driver output
LED12 driver output
LED11 driver output
LED10 driver output
Battery is connected
Ground
Ground
-
LED Constant Current Driver Current setting pin
LED9 driver output
LED8 driver output
LED7 driver output
LED6 driver output
LED5 driver output
Ground
-
LED4 driver output
LED3 driver output
LED2 driver output
LED1 driver output
A
A
D
B
D
I
D
B
D
F
G
M
E
-
K
K
K
B
K
K
K
K
A
B
B
-
J
K
K
K
K
K
B
-
K
K
K
K
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
3/30
TSZ02201-0G3G0CZ00250-1-2
14.Mar.2016 Rev.003







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