Datasheet

Datasheet

3/29

TSZ02201-0P4P0D300490-1-2

26.Feb.2014 Rev.002

www.rohm.com

© 2013 ROHM Co., Ltd. All rights reserved.

TSZ22111･15･001

BU97931FV-LB

MAX 112 segments (SEG28×COM4)

Parameter

Symbol

Ratings

Unit

Remarks

Power Supply Voltage 1

VDD

-0.3 to +4.5

V

Power supply

Power Supply Voltage 2

VLCD

-0.5 to +7.0

V

Power supply for LCD

Power Dissipation

Pd

0.8

W

When operated more than Ta=25

per degree.

(using ROHM standard board)

(board size:74.2mm×74.2mm×1.6mm material: FR4

board

copper foil: land pattern only)

Input Voltage Range

VIN

-0.5 to VDD +0.5

V

Operational Temperature

Range

Topr

-40 to +85

°C

Storage Temperature Range

Tstg

-55 to +125

°C

Output current

Iout1

5

mA

SEG output

Iout2

5

mA

COM output

Iout3

10

mA

GPO output

Iout4

50

mA

LED output

Caution:Operating the IC over the absolute maximum ratings may damage the IC.The damage can either be a short circui between pins or an open circuit

between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated

over the absolute maximum ratings.

Parameter

Symbol

Ratings

Unit

Remarks

Min

Typ

Max

Power Supply Voltage 1

VDD

1.8

-

3.6

V

Power supply

Power Supply Voltage 2

VLCD

2.7

-

5.5

V

Power supply for LCD

Output Current

Iout4

-

-

20

mA

Per LED port 1ch

Electrical Characteristics

DC characteristics (Ta= -40°C to +85°C, VDD=1.8V to 3.6V, VLCD=3.3V to 5.5V, VSS=0)

Parameter

Symbol

Limits

Unit

Conditions

Min

Typ

Max

“H” Level Input Voltage

VIH

0.8VDD

-

VDD

V

SD, SCL, CSB, CLKIN

“L” Level Input Voltage

VIL

VSS

-

0.2VDD

V

SD, SCL, CSB, CLKIN

Hysteresis Width

VH

-

0.2

-

V

SCL, VDD=3.3V, Ta=25°C

“H” Level Input Current

IIH1

-

-

5

µA

SD, SCL, CSB, CLKIN,

VI=3.6V

“L” Level Input Current

IIL1

-5

-

-

µA

SD, SCL, CSB, CLKIN,

VI=0V

“H” Level Output Voltage

(Note2)

VOH1

VLCD

-0.4

-

-

V

Iload=-50µA, VLCD=5.0V

SEG0 to SEG27

VOH2

VLCD

-0.4

-

-

V

Iload=-50µA, VLCD=5.0V,

COM0 to COM3

VOH3

VLCD

-0.6

-

-

V

Iload=-1mA,VLCD=5.0V,

SEG23 to SEG27(GPO mode)

“L” Level Output Voltage

(Note2)

VOL1

-

-

0.4

V

Iload= 50µA, VLCD=5.0V,

SEG0 to SEG27

VOL2

-

-

0.4

V

Iload= 50µA, VLCD=5.0V,

COM0 to COM3

VOL3

-

-

0.5

V

Iload=1mA, VLCD=5.0V,

SEG23 to SEG27(GPO mode)

VOL4

-

0.11

0.5

V

Iload=20mA, VLCD=5.0V,

LED

(Note 1) Power save mode 1 and frame inversion setting

(Note 2) Iload: In this case, load current from only one port