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參數(shù)資料
| 型號(hào)： | SP4501 |
| 英文描述： | EL Plus Piezo Driver |
| 中文描述： | 壓電驅(qū)動(dòng)發(fā)光加 |
| 文件頁(yè)數(shù)： | 1/13頁(yè) |
| 文件大小： | 137K |
| 代理商： | SP4501 |
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11-14-00
SP4501 EL Plus Piezo Driver
1
Copyright 2000 Sipex Corporation
I
Integrated EL Plus Piezo Driver For
Portable Electronic Devices
I
Reduces System Cost, Size & Compo-
nent Count
I
+2.2V to +6.0V Battery Operation
I
A Single External Coil Drives Both the
EL Lamp and Piezotransducer Circuitry
I
Piezotransducer Can Be Driven By an
External Clock or Internal Clock
I
A Single Resistor Controls the Internal
Oscillator
I
DC-to-AC Inverter Produces Up To
200V
to Drive EL Lamps
I
DC-to-AC Inverter Produces Waveform
to Drive Piezotransducer
I
Low Current Standby Mode Draws Less
than 1
μ
A
DESCRIPTION
The SP4501 provides designers with both an electroluminescent lamp driver for backlighting and
a piezotransducer driver to generate audio alert tones. The integration of an EL lamp driver and
a piezotransducer driver in a single cost-effective IC reduces system cost, board space
requirements and component count. The SP4501 is ideal for portable applications such as
pagers, electronic games, PDAs, medical equipment, and designs with liquid crystal displays,
keypads, and backlit readouts. The SP4501
will operate from a +2.2V to +6.0V source. The
device features a low power standby mode which draws less than 1
μ
A (typical). The frequency
of the internal oscillator is set with a single external resistor. The piezotranducer driver can be
driven with the internally generated clock signal or an external clock signal provided by the
designer. A single inductor is required to generate the high voltage AC used to drive the EL lamp
and the piezotransducer. All input pins are ESD protected with diodes to V
DD
and V
SS
.
EL Plus Piezo Driver
ELEN
PZEN
R
OSC
PZCK
V
DD
EL2
EL1
PZ2
1
2
3
4
11
12
13
14
PZCK
no connect
V
SS
5
6
7
PZ1
COIL
8
9
10
CAP
SP4501
SP4501
APPLICATIONS
I
PDA's
I
Pagers
I
GPS
I
Hand Held Medical Devices
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP4501EN | EL Plus Piezo Driver |
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| SP483E | Enhanced Low EMI Half-Duplex RS-485 Transceiver |
| SP483ECN | Enhanced Low EMI Half-Duplex RS-485 Transceiver |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP4501EN | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:EL Plus Piezo Driver |
| SP4501EY | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:EL Plus Piezo Driver |
| SP4501NEB | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:EL Plus Piezo Driver |
| SP450ALM.F | 制造商:DAITO 功能描述: |
| SP450A-R2 | 制造商:Black Box Corporation 功能描述:CCTV (BNC Coax) Surge Protector , CCTV (BNC Coax) Surge Protector |
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