zsp4403 ywyn Corporation, zsp4403 Datasheet

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zsp4403

Manufacturer Part Number
zsp4403
Description
Low Voltage Electroluminescent Lamp Driver High Voltage Output For Large Display
Manufacturer
ywyn Corporation
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
zsp4403EU
Quantity:
640
Zywyn Corporation • Tel (408) 733-3225 • Fax (408) 733-3206 • Email sales@zywyn.com • www.zywyn.com
specifications subject to change without notice
Features
• High-efficiency design
• +2.2V to +5.0V battery operation
• DC-to-AC converter produces up to 220Vpp for
• Single resistor controlled internal oscillator
• Low current standby mode draws less than 1µA
• Uses small 470µH, Sub 2mm height coil
Applications
• PDA’s, MP3 Players
• Cellular phones
• LCD modules
• Handheld GPS units
• Security systems
• POS Terminals
Pin Configuration
EL display panels
ELEN
COIL
V
EL1
SS
Zywyn
1
4
2
3
Zywyn
8-Pin MSOP
ZSP4403
8
7
6
5
R
C
V
EL2
DD
OSC
INT
Low Voltage Electroluminescent Lamp Driver
General Description
The ZSP4403 is a high voltage output DC-AC inverter
specifically designed to drive electroluminescent lamps to
backlight liquid crystal displays, keypads, and backlit
readouts used in battery operated portable equipment.
The ZSP4403 is designed with our proprietary high volt-
age BiCMOS technology. The ZSP4403 will operate from
a +2.2V to +5.0V battery source. The device features a
low power shutdown mode which draws less than 100nA
(typical), ideal for low power portable products. One
external inductor is required to generate the high voltage
AC output. One external resistor is used to select the
internal oscillator frequency. The ZSP4403 is ideal for
portable applications such as PDA’s, pagers, cellular
phones, and other portable applications using LCDs in dim
or low light environments. The ZSP4403 is offered in 8-pin
MSOP packages.
High Voltage Output for Large Display
Ordering Information
Please contact the factory for pricing and availabiliy on a Tape-on-Reel
and Green Package
Please contact the factory for EL driver design support and availability
of custom-made evaluation demo boards.
See our web site for Application Note
for custom-made evaluation demo boards.
Part Number
ZSP4403EU
ZSP4403LEU
ZSP4403UEB
Temperature Range
option.
–40°C to +85°C
–40°C to +85°C
n/a
AN007
8-Pin MSOP Green
regarding requirements
Evaluation Board
Package Type
ZSP4403
8-Pin MSOP
January 2005
rev. 02

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zsp4403 Summary of contents

Page 1

... AC output. One external resistor is used to select the internal oscillator frequency. The ZSP4403 is ideal for portable applications such as PDA’s, pagers, cellular phones, and other portable applications using LCDs in dim or low light environments. The ZSP4403 is offered in 8-pin MSOP packages. Ordering Information Part Number ...

Page 2

... C DD COIL 2 = +25°C, unless A Min Typ Max 2.2 3.0 5.0 1.5 3.0 3.8 6 5.0 DD – 0. 0.05 1 300 400 = 15nF 170 195 LAMP = 35nF 170 200 LAMP ZSP4403 Units 0.25 + 0.25 µA kHz % January 2005 rev. 02 ...

Page 3

... EL1 and EL2 (pins 4 and 5, respectively square wave output. Oscillator Resistor. Connecting a 450kΩ resistor to this input pin sets the frequency of the internal clock. 3 ZSP4403 L1 470µH 3 COIL D1* ...

Page 4

... A total of six external com- ponents are typically used in standard operation of the ZSP4403: an inductor, a fast recovery diode, three ca- pacitors and a resistor. A diagram of the ZSP4403 in a typical application can be found in Figure 2. Electroluminescent Technology An EL lamp is basically a strip of plastic that is coated with a phosphorous material which emits light (fluoresces) when a high voltage (> ...

Page 5

... Figure 5). A differential representation of the output is shown in Figure 6. Fine Tuning Performance Circuit performance of the ZSP4403 can be improved with some of the following suggestions: Increase EL Lamp Light Output By connecting a fast recovery diode from COIL (pin 3) to ...

Page 6

... Figure 5. EL Voltage Waveforms from the EL1 and EL2 Outputs Figure 6. EL Differential Output Waveform of the EL1 and EL2 Outputs Zywyn V =80V (typical) PEAK EL1 Output -EL2 Output Differential Representation ZSP4403 EL1 Output -EL2 Output V =160V PP (typical) January 2005 rev. 02 ...

Page 7

... Zywyn Corporation Typical Performance Characteristics Zywyn 7 ZSP4403 January 2005 rev. 02 ...

Page 8

... Manufacturers Nitto Denko Yoshi Shinozuka Bayside Business Park 48500 Fremont, CA. 94538 Phone: 510 445 5400 Fax: 510 445-5480 8 ZSP4403 Top Polarizer- NPF F1205DU Bottom - NPF F4225 or (F4205) P3 w/transflector Transflector Material Astra Products Mark Bogin P.O. Box 479 Baldwin, NJ 11510 Phone (516)-223-7500 ...

Page 9

... ZSP4403EU devices per tube MSOP-8 13" reels: P=8mm, W=12mm Standard qty per reel 500 2500 9 ZSP4403 0.006 –0.006 0.006 – ...

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