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PDF SP4416 Data sheet ( Hoja de datos )
| Número de pieza | SP4416 | |
| Descripción | Electroluminescent Lamp Driver with 4-Level Light Intensity Selection Feature | |
| Fabricantes | Sipex | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SP4416 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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® SP4416
Electroluminescent Lamp Driver with
4-Level Light Intensity Selection Feature
s 4-Level, Software Selectable Light
Intensity Function
s 75%-80%-85%-100% Intensity
Level Options
s Extends Standby Time & Battery Life
when used in Conjunction with Power
Management Devices
s Requires only 2 External Components:
Oscillator Setting Capacitor and Inductor
s Low Power +3.3V Operation
s 100nA Standby Current
s Space-Saving 10-pin µSOIC Package
APPLICATIONS
s Cellular Phones
s LCD Displays & Keypads
s PDAs
s Handheld Portable Electronic Devices
DESCRIPTION
The SP4416 is a high voltage output DC-AC converter that operates from a 3.3V battery and
generates up to 220VPP AC output. As with Sipex's other electroluminescent driver products,
the AC output is used to generate light in an electroluminescent lamp. The SP4416 incorporates
an intensity select feature within the enable circuit so that the user can program the desired
light intensity. The SP4416 uses only two external components to generate light; the oscillator
capacitor and inductor. The ENLI pin is used for either an enable function or a step-up intensity
function. Four light intensities can be set by strobing the ENLI pin in a defined time period.
The SP4416 with the intensity function can be used in cellular phone applications, PDA's, and
other hand-held CPU controlled equipment.
COSC2
COSC1
VSS
EL1
CS
1
2
3
4
5
SP4416EU
10 ENLI
9 VDD
8 VEE
7 EL2
6 COIL
SP4416DS/06
SP4416 Electroluminescent Lamp Driver with 4-Level Light Intensity Selection Feature
1
© Copyright 1999 Sipex Corporation
1 page  
10
5
1
Level 4 Intensity
16 Coil Pulses
100% of VOUT
Figure 2. Level 4 Output for EL1
5
1
Level 2 Intensity
9 Coil Pulses
80% of VOUT
Figure 4. Level 2 Output for EL1
10
5
1
Level 3 Intensity
12 Coil Pulses
85% of VOUT
Figure 3. Level 3 Output for EL1
5
1
Level 1 Intensity
7 Coil Pulses
75% of VOUT
Figure 5. Level 1 Output for EL1
SP4416DS/06
SP4416 Electroluminescent Lamp Driver with 4-Level Light Intensity Selection Feature
5
© Copyright 1999 Sipex Corporation
5 Page 
PERFORMANCE CHARACTERISTICS
The following performance curves are intended to give the designer a relative scale from which to optimize
specific applications. Absolute measurements may vary depending upon the brand of components chosen.
25
20
15
10
5
0
-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85
Temperature oC
Figure 19. EL Driver Current (not including Coil Current) vs Temperature, VDD = 3.0V
SP4416DS/06
SP4416 Electroluminescent Lamp Driver with 4-Level Light Intensity Selection Feature
11
© Copyright 1999 Sipex Corporation
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet SP4416.PDF ] | |
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