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SM8143AV Datenblatt(PDF) 1 Page - Nippon Precision Circuits Inc

Teilenummer SM8143AV
Bauteilbeschribung  EL Driver
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Hersteller  NPC [Nippon Precision Circuits Inc]
Direct Link  http://www.npc.co.jp/en
Logo NPC - Nippon Precision Circuits Inc

SM8143AV Datenblatt(HTML) 1 Page - Nippon Precision Circuits Inc

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SM8143A
SEIKO NPC CORPORATION —1
EL Driver
OVERVIEW
The SM8143A is a transformer-less electroluminescent (EL) driver IC, capable of driving displays up to
80cm2 (SM8143AV) or 70cm2 (SM8143AD) in size. It is a high-efficiency driver that features revised coil
switching transistor ON resistance and output circuit configuration to reduce loss. The EL drive frequency and
coil drive frequency can be controlled independently, making the driver circuit optimizable to match applica-
tion requirements. A microcontroller interface pin (ENA) is provided, which can be used to control the EL
driver ON/OFF function.
FEATURES
I
Dedicated EL driver
I
1.6 to 5.5V supply voltage
I
Maximum operating current
• SM8143AV: 150mA max.
(VDD = 3.0V, Ta ≤ 70°C)
• SM8143AD: 100mA max.
(VDD = 3.0V, Ta ≤ 70°C)
I
3.5
Ω typical output resistance
I
200Vp-p maximum EL driver voltage*
I
31 to 1500Hz EL drive frequency range*
I
High voltage CMOS Process
I
Package: VSOP-16, SON-10
*: Adjustable with external resistance.
APPLICATIONS
I
Cellular phone
I
Mobile equipment
I
PDA
ORDERING INFORMATION
PINOUT
(Top view)
I
VSOP-16
I
SON-10
Device
Package
SM8143AV
VSOP-16
SM8143AD
SON-10
NC
1
CHV
NC
LDR
16
NC
OUT1
NC
OUT2
NC
VSS
NC
OCL
8
NC
VDD
ENA
9
OCE
CHV
LDR
NC
OUT1
OUT2
VSS
OCL
OCE
ENA
VDD
6
1
2
3
4
5
10
9
8
7
6


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