mc33441dtbr2 ON Semiconductor, mc33441dtbr2 Datasheet

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mc33441dtbr2

Manufacturer Part Number
mc33441dtbr2
Description
Electroluminescent Lamp Driver Ic
Manufacturer
ON Semiconductor
Datasheet
MC33441
Electroluminescent Lamp
Driver IC
lamps. It can boost the supply voltage to the level required by EL
lamps and also provide high voltage AC lamp excitation. It consists of
an oscillator, a frequency divider, a coil driving circuit and a switched
H−bridge network. The input supply voltage range is from 1.8 V to
3.5 V and is capable to supply a typical 140 Vpp AC output voltage.
The standby current of the device is typically 10 nA which is ideal for
low power portable products. Externally, one inductor and one resistor
are needed to generate the desirable voltage charge and to fine tune the
oscillator’s frequency. This device is offered in 8−Pin TSSOP
miniature package. The operating temperature is −20°C to 70°C.
Features
Types of Applications
© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 3
ENB
VDD
RT1
VSS
The MC33441 is a DC−AC inverter integrated circuit for driving EL
Length = 3.1 mm & Lead Pitch = 0.65 mm)
Battery Operation 1.8 V − 3.5 V
Typical Voltage Output 140 Vpp
Typical Standby Current 10 nA
Internal Oscillator with External Tuning Resistor
Enable Control Pin with a 300 K Internal Pull−Down Resistor
8−Pin TSSOP Package (Thickness = 1.05 mm, Width = 4.5 mm,
Pagers, Cellular Phones, Portable CD Players/Minidisks
Databanks, Calculators
1
2
3
4
OSC
FREQUENCY
DIVIDER
Simplified Block Diagram
F
EL
F
COIL
H−BRIDGE
DRIVER
COIL
8
7
6
5
1
EL1
EL2
FILTER
COIL
MC33441DTBR2
Device
ORDERING INFORMATION
VDD
ENB
VSS
RT1
PIN CONNECTIONS AND
MARKING DIAGRAM
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
http://onsemi.com
1
2
3
4
8
DTB SUFFIX
CASE 948J
TSSOP−8
Package
(Top View)
TSSOP−8
Publication Order Number:
1
8
7
6
5
2500 Units / Reel
EL1
EL2
FILTER
COIL
Shipping
MC33441/D

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mc33441dtbr2 Summary of contents

Page 1

... FREQUENCY DIVIDER F COIL Simplified Block Diagram © Semiconductor Components Industries, LLC, 2006 July, 2006 − Rev EL1 H−BRIDGE 7 EL2 6 FILTER 5 COIL MC33441DTBR2 COIL DRIVER 1 http://onsemi.com 8 1 TSSOP−8 DTB SUFFIX CASE 948J PIN CONNECTIONS AND MARKING DIAGRAM VDD EL1 1 8 ...

Page 2

VSS 4 R EXT 3 RT1 FREQ. DIVIDER ENB 2 VDD 1 Pin No. (TSSOP−8) Name Á Á Á Á Á Á Á Á Á Á Á Á Á Pin 1 VDD Á Á Á Á Á Á Á Á ...

Page 3

MAXIMUM RATINGS (T = 25°C, unless otherwise noted.) C Rating Á Á Á Á Á Á Á Á Á Á Á Á Á Á Power Supply Voltage Á Á Á Á Á Á Á Á Á Á Á Á Á ...

Page 4

General The MC33441 is a DC−AC inverter integrated circuit for driving EL lamps. It can boost the supply voltage to the level required by EL lamps and also provide high voltage AC lamp excitation. It consists of an oscillator, a ...

Page 5

EL lamp. And, those switches will remain off until the next clock cycle. H−Bridge Network To achieve the 140 V peak−to−peak voltage, H−bridge network is used to charge and ...

Page 6

TYPICAL OPERATING CHARACTERISTICS 300 250 200 150 100 50 0 50K 75K 100K R (Ω) EXT Figure 4. Oscillator Frequency versus 2. Lamp Freq. = 365 Hz EL lamp = ...

Page 7

EL Lamp Selection EL lamps are a laminate which exhibit a capacitance on the order of 2 3.5 nF per square inch. The light will emit as the high voltage is applied across the electrodes of this capacitance. ...

Page 8

Figure 11. MC33441 PC Board − Top View Figure 12. MC33441 Component Placement Guide − Component Side Figure 13. MC33441 PC Board − Bottom View http://onsemi.com 8 ...

Page 9

... Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303− ...

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