Datenblatt-pdf.com


LC7958NC Schematic ( PDF Datasheet ) - Sanyo Semicon Device

Teilenummer LC7958NC
Beschreibung 64-Bit LED Driver for 300 dpi Printers
Hersteller Sanyo Semicon Device
Logo Sanyo Semicon Device Logo 




Gesamt 11 Seiten
LC7958NC Datasheet, Funktion
Ordering number: ENN*6585
CMOS IC
LC7958NC
64-Bit LED Driver for 300 dpi Printers
Preliminary
Overview
LC7958NC is a 64-bit constant current LED driver IC
designed to directly drive LED head array.
The output terminals for LED drive are arranged in
2-row staggered position of 80-µm pitch at one side. It
enables drive of LED Array of 300-dpi in one side
disposition, 600dpi in both sides disposition
Features and Functions
Logic voltage (VDD): +5 V ± 10 %
LED drive current (IOH): 5.0 mA (TYP)
Clock frequency (fc): 10 MHz
Output current control circuit built in
Mode switching function by the SEL pin
Chip size: 1.43 mm × 5.39 mm
Number of pads: 86
64-bit shift register circuit
64-bit latch circuit
Output driver on/off switching function
Constant current circuit
64-bit p-channel open drain LED driver
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
42800RM6585-1/11






LC7958NC Datasheet, Funktion
LC7958NC
Function Table
1. Shift Register and Latch Blocks
SEL
CLOCK1
Falling
edge
High
Rising edge
-
LOAD1
-
-
High
Shift register
DATA load and DATA
shift
DATA keep
-
- Low
-
Falling
edge
DATA load and DATA
-
shift
Rising edge
-
Low
DATA keep
- Low
-
- High
-
Latch
-
-
DATA load
DATA keep
-
-
DATA load
DATA keep
2. Output Block
STROBE
High
Low
Low
Note 1: "×": don’t care
SI
×
Low
High
DO output
OFF
OFF
ON
Establishment of Output Current
MODE
ADJ(+)
ADJ(-)
Current control
IOH(typ)
resistance
1 Low Low Built in (RINT)
VREF/RINT × 10
2 Low High Built in (RINT)
VREF/RINT × 10 × 0.94
3
High
Low
Built in (RINT)
VREF/RINT× 10 × 1.06
Note 2: RINT(TYP) = 3.61 k
*Complement explanation
Here shows the general usage of the modes 1 to 3 as follows.
MODE 1 is set by connecting the ADJ(+) and ADJ(-) terminals with VSS. In the MODE1 state, by cutting the
bonding wire connected with ADJ(+) or ADJ(-), the IC enters the MODE2 or MODE3, respectively. The current in
MODE1 can be corrected by about –6 % or +6 % in MODE2 or MODE3, respectively.
6585-6/11

6 Page







SeitenGesamt 11 Seiten
PDF Download[ LC7958NC Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
LC7958NC64-Bit LED Driver for 300 dpi PrintersSanyo Semicon Device
Sanyo Semicon Device

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche