ROHM BD8105FV Technical data

Power Management ICs for Automotive Body Control

LED Indicator Driver

BD8105FV

●Description

The BD8105FV is a serial parallel control LED driver with 35V input voltage rating. Responding to the 3-line serial data, it turns the 12ch open drain output on/off. Due to its compact size, it is optimal for small spaces.

●Features

1) Open Drain Output

2) 3-line Serial Control + Enable Signal

3) Internal Temperature Protection Circuit (TSD)

4) Cascade Connection Compatible

5) SSOP-B20W

6) Internal 12 ch Power Transistor

Applications

These ICs can be used with car and consumer electronic.

●Absolute Maximum Ratings (Ta=25℃)

Parameter Symbol Ratings Unit

No.11039ECT01

Power Supply Voltage VCC 7 V

Output Voltage(Pin No : 4～9, 11～16) VDmax 35 V

Input Voltage(Pin No : 1, 2, 3, 17, 18) VIN -0.3～VCC V

Power Dissipation Pd 1187* mW

Operating Temperature Range Topr -40～+105 ℃

Storage Temperature Range Tstg -55～+150 ℃

Drive Current (DC) IomaxD 50 mA

Drive Current(Pulse) IomaxP 150** mA

Junction Temperature Tjmax 150 ℃

* Pd decreased at 9.50mW/℃ for temperatures above Ta=25℃,mounted on 70×70×1.6mm Glass-epoxy PCB. ** Do not however exceed Pd. Time to impress≦200msec

www.rohm.com

1/12

2011.05 - Rev.C

BD8105FV

●Operational Conditions (Ta=-40~105℃)

Parameter Symbol

Min. Typ. Max.

Ratings

Power Supply Volta g e Vcc 4.5 5 5.5 V

Drive Current Io - 20 40 mA

* This product is not designed for protection against radioactive rays.

●Electrical Characteristics (Unless specified, Ta=-40~105℃ Vcc=4.5～5.5V)

Parameter Symbol

Min. Typ. Max.

Limits

【Output D0～D11】(Pin No : 4～9, 11～16)

Technical Note

Unit

Unit Conditions

ON Resistor RON - 6 12 Ω ID=20mA

Output leakage current IDL - 0 5 µA VD=34V

【Logic input】(Pin No : 1, 2, 3, 17, 18)

Upper limit threshold voltage VTH

Bottom limit threshold voltage VTL - -

Vcc

×0.8

- - V

Vcc

×0.2

V

Serial clock frequency FCLK - - 1 MHz

Input Current IIN 20 50 100 µA VIN=5V

Input leakage Current IINL - 0 5 µA VIN=0V

【WHOLE】

Serial Data Input,

Circuit Current ICC - 0.3 5 mA

VCC=5V,CLK=500KHz, SEROUT=OPEN

Static Current ISTN - 0 50 µA

RST_B=OPEN, SEROUT=OPEN

【SER OUT】(Pin No. : 20)

Output Voltage high VOH 4.6 4.8 - V VCC=5V, ISO=-5mA

Output voltage Low VOL - 0.2 0.4 V VCC=5V, ISO=5mA

* This product is not designed for protection against radioactive rays.

www.rohm.com

2/12

2011.05 - Rev.C

BD8105FV

V

●Electrical Characteristic Diagrams (Unless otherwise specified Ta=25℃)

250

230

25℃

200

150

SUPPLY C URRENT：Icc[ μA]

100

105℃

-40℃

50

225

220

215

210

SUPPLY CURRENT：Icc[μA]

0

012345

SUPPLY VOLTAGE：Vcc[V]

Fig.1 Circuit current 1

205

-40 -15 10 35 60 85

AMBIENT TEMPERATURE ： Ta[℃]

Fig.2 Circuit current 2

8

7

6

5

4

3

2

1

OU TP UT ON RESIS TANC E ： RON[Ω ]

0

-40 -15 10 35 60 85

AMBIENT TEMPERATURE ： Ta[℃]

Fig.4 Dxx on resistance 2

6.0

5V

(at IDD=20mA)

5.5

5.0

4.5

4.0

3.5

OUTPU T VOLTAGE ： VOH[V]

3.0

-40 -15 10 35 60 85

AMBIENT TEMPERATURE ： Ta[℃]

Fig.7 SEROUT high side voltage 2

(at ISO=-5mA)

4.5V

5.5V

5V

4.5V

6.0

5.8

5.6

5.4

5.2

5.0

4.8

4.6

4.4

4.2

OUTPUT ON RE SISTANCE ： RON[Ω]

4.0

4.5V

5

5.5

10 20 30 40 50

INPUT CURRENT： I

D

[mA]

Fig.5 Dxx on resistance

0.35

0.30

0.25

0.20

0.15

0.10

OUTPUT VOLTAGE ： VOL[V]

0.05

0.00

4.5 4.7 4.9 5.1 5.3 5.5

105℃

25℃

-40℃

SUPPLY VOLTAGE ： Vcc[V]

Fig.8 SEROUT low side voltage 1

(at ISO=5mA)

5.5V

4.5V

5.0V

Technical Note

10

9

8

7

6

5

4

3

2

OUTPU T RESISTANCE ：RON[Ω]

1

0

4.5 4.7 4.9 5.1 5.3 5.5

Fig.3 Dxx on resistance 1

5.4

5.2

5.0

4.8

4.6

4.4

OUTPU T VOLTAGE ： VOH[V]

4.2

4.0

4.5 4.7 4.9 5.1 5.3 5.5

Fig.6 SEROUT high side voltage 1

0.35

0.30

0.25

0.20

0.15

0.10

OUTPUT VOLTAGE ： VOL[V]

0.05

0.00

-40 -15 10 35 60 85

Fig.9 SEROUT low side voltage 2

105℃

25℃

-40℃

SUPPLYVOLTAGE：Vcc[V]

(at IDD=20mA)

-40℃

25℃

105℃

SUPPLY VOLTAGE： Vcc[V]

(at ISO=-5mA)

4.5V

5V

AMBIENT TEMPERATURE ： Ta[℃]

5.5V

(at ISO=5mA)

www.rohm.com

3/12

2011.05 - Rev.C

BD8105FV

SEROUT

CLK

SERIN

D0

D1

D2

D3D4LATCH

RST_B

SDWN

D11D10D9D8D7D6

D

Technical Note

●Block Diagram

SDWN

3

SERIN

17

LATCH

1

CLK

18

RST_B

2

<11:0>

Serial

I/F

19

10

VCC

SEROUT

GND

TSD

<11:0>

Driver

SEROUT

12

13

14

15

16

20

4

D11

5

D10

D9

6

D8

7

8

D7

D6

9

D5

11

D4

D3

D2

D1

D0

Fig.10

●Pin Setup Diagram BD8105FV(SSOP-B20W)

1

2

3

4

5

6

7

8

GND

9

10

●Terminal Number・Terminal Name

Number

1 LATCH

20

2 RST_B

19

VCC

18

17

16

3 SDWN

4 D11 Drain Output Terminal 11

5 D10 Drain Output Terminal 10

Terminal

Name

Latch Signal Input Terminal (H: Latches Data)

Reset Reversal Input Terminal (L: FF Data 0)

Shutdown Input Terminal (H: Output Off)

6 D9 Drain Output Terminal 9

15

14

13

12

11

5

7 D8 Drain Output Terminal 8

8 D7 Drain Output Terminal 7

9 D6 Drain Output Terminal 6

10 GND Ground Terminal

11 D5 Drain Output Terminal 5

12 D4 Drain Output Terminal 4

13 D3 Drain Output Terminal 3

14 D2 Drain Output Terminal 2

Fig.11

15 D1 Drain Output Terminal 1

16 D0 Drain Output Terminal 0

17 SERIN Serial Data Input Terminal

18 CLK Clock Input Terminal

19 VCC Supply Voltage Input Terminal

20 SEROUT Serial Data Output Terminal

Function

www.rohm.com

4/12

2011.05 - Rev.C