7228AIBIZ 查看數據表（PDF） - Renesas Electronics

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产品描述 (功能)

生产厂家

7228AIBIZ

8-Digit, Microprocessor-Compatible, LED Display Decoder Driver

Renesas Electronics 

ICM7228

DIGIT

STROBE

INTERDIGIT

BLANKING

SHUTDOWN

VDD

P

2k

COMMON

CATHODE

N

DIGIT

15 OUTPUT

VSS

FIGURE 13A. DIGIT DRIVER

SEGMENT

DATA

INTERDIGIT

BLANKING

VDD

P

200mA

100

N

N

2k

COMMON

CATHODE

SEGMENT

OUTPUT

SHUTDOWN

VSS

N

2k

VSS

NOTE: When SHUTDOWN goes low INTERDIGIT BLANKING also

stays low.

FIGURE 13B. SEGMENT DRIVER

FIGURE 13. COMMON CATHODE DISPLAY DRIVERS

VDD

DIGIT

OUTPUT

ICM7228A/C

VDD

SEGMENT

OUTPUT

VDD

UP TO

4A

VDD

10K

VDD

VDD

100

SEGMENT

OUTPUT

ICM7228B

VDD

2N2219

14(100mAPEAK)

DIGIT

OUTPUT

N

15

14mA

2N6034

1.4APEAK

VSS

VSS

FIGURE 15. DRIVING HIGH CURRENT DISPLAY, COMMON

CATHODE ICM7228B TO COMMON CATHODE

DISPLAY

VDD

VDD

1K

VDD

1.4APEAK

2N6034

100

SEGMENT

OUTPUT

ICM7228B

VDD

DIGIT 300

OUTPUT

N

15

1K 25

(100mAPEAK)

2N2219

1K

VSS

VSS

FIGURE 16. DRIVING HIGH CURRENT DISPLAY, COMMON

CATHODE ICM7228B TO COMMON ANODE

DISPLAY

VSS

VSS

FIGURE 14. DRIVING HIGH CURRENT DISPLAY, COMMON

ANODE ICM7228A/C TO COMMON ANODE

FN3160 Rev 9.00

August 19, 2015

Page 15 of 19

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