cf8141b Nippon Precision Circuits Inc, (NPC), cf8141b Datasheet

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cf8141b

Manufacturer Part Number
cf8141b
Description
El Driver
Manufacturer
Nippon Precision Circuits Inc, (NPC)
Datasheet
OVERVIEW
The SM8141 is a transformer-less electroluminescent (EL) sheet lamp driver, capable of driving sheets up to
50cm
components, making it ideal for compact driver units in portable equipment.
FEATURES
I
I
I
I
I
I
I
I
I
I
I
I
ORDERING INFORMATION
Dedicated EL driver
50cm
Noise-less smooth drive waveform
Two oscillators (EL and coil)(SM8141A)
Stand-by function (SM8141B)
High-efficiency MOS transistor driver
Dual supply operation possible
(See TYPICAL APPLICATIONS)
2.0 to 5.5V supply operation
200Vp-p maximum drive voltage
250Hz standard drive frequency
8-pinVSOP package
Chip form
2
in size. It employs built-in high withstand voltage output MOS transistors and requires few external
2
SM8141BV
SM8141AV
maximum EL sheet drive capability
CF8141A
CF8141B
Device
8pin VSOP
Chip form
Package
PINOUT
(Top view)
PACKAGE DIMENSIONS
(Unit: mm)
0.575TYP
0.65
0.10
OSC
CHV
CHV
OCL
LDR
VSS
LDR
VSS
3.1 ± 0.3
1
2
3
4
1
2
3
4
0.22 ± 0.1
SM8141A
SM8141B
SEIKO NPC CORPORATION —1
0.12
M
8
7
6
5
8
7
6
5
OUT1
OUT2
VDD
OCE
OUT1
OUT2
VDD
ENA
EL Driver
SM8141
0 to 10 °

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cf8141b Summary of contents

Page 1

... TYPICAL APPLICATIONS) 2.0 to 5.5V supply operation I 200Vp-p maximum drive voltage I 250Hz standard drive frequency I 8-pinVSOP package I Chip form I ORDERING INFORMATION Device SM8141AV SM8141BV CF8141A CF8141B PINOUT (Top view) CHV OCL CHV LDR VSS Package OSC 8pin VSOP PACKAGE DIMENSIONS Chip form (Unit: mm) 0.575TYP 0.65 ...

Page 2

PAD DIMENSIONS (Unit: mm NPC SA8141 1 (0,0) X Chip size : 1.80 × 1.30mm Chip thickness : 300 µ m Chip base : V SS PIN DESCRIPTION • SM8141A Pad dimensions Pin Pad Name ...

Page 3

BLOCK DIAGRAM • SM8141A • SM8141B SM8141 High Voltage Switching Circuit Divider Divider Oscillation Circuit Oscillasion Circuit for Voltage Booster for output High Voltage Switching Circuit Divider Divider Oscillation Circuit for boosting voltage and EL drive SEIKO NPC CORPORATION —3 ...

Page 4

SPECIFICATIONS Absolute Maximum Ratings Parameter Symbol Supply voltage range V DD Input voltage range CHV Output voltage V LDR V OUT1/2 Storage temperature range T STG Power dissipation P D Recommended Operating Conditions ...

Page 5

DC Characteristics ° 0V 3.0V unless otherwise noted SS DD Parameter Supply voltage CHV output voltage OUT1, OUT2 HIGH-level output voltage OUT1, OUT2 LOW-level output voltage LDR output resistance OCE oscillator frequency ...

Page 6

TYPICAL APPLICATIONS • SM8141A 0.01µF C bypass 0.01µF C bypass 0.01µF C bypass Note) Do not operate the SM8141 with the EL sheet NOT connected (no load to OUT1/OUT2) since the IC will be damaged. SM8141 size: ...

Page 7

SM8141B 0.1µF 100V 0.01µF C bypass 0.1µF 100V 0.01µF C bypass 0.1µF 100V 0.01µF C bypass Note) Do not operate the SM8141 with the EL sheet NOT connected (no load to OUT1/OUT2) since the IC will be damaged. SM8141 ...

Page 8

Please pay your attention to the following points at time of using the products shown in this document. The products shown in this document (hereinafter “Products”) are not intended to be used for the apparatus that exerts harmful influence on ...

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