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IMP525ESA Datasheet(PDF) 5 Page - IMP, Inc

Part # IMP525ESA
Description  SINGLE CELL BATTERY POWERED ELECTROLUMINESCENT LAMP DRIVER/INVERTER
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Manufacturer  IMP [IMP, Inc]
Direct Link  http://www.ds-imp.com.cn/index.asp
Logo IMP - IMP, Inc

IMP525ESA Datasheet(HTML) 5 Page - IMP, Inc

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5
IMP525
IMP525
+
–
VDD
RSW-OSC
CS
LX
REL-OSC
VA
VB
GND
8
7
6
5
1
2
3
4
IMP525
REL
RSW
CS
VDD
0.1
µF1
1N4148
D
L
3nF
Note:
1. Larger values may be required depending upon supply impedance.
525_03.eps
0.1
µF
100V
ON = VDD
OFF = 0V
Figure 1. Test Circuit
Test Circuit
Figure 1 shows the IMP525 configured to drive an EL lamp,
represented as a 3nF capacitor.
Component
Connections
Value
Description
RSW
VDD, RSW-OSC
1M
Ω
Boost converter oscillator bias resistor
REL
VDD, REL-OSC
1M
Ω
EL lamp driver oscillator bias resistor
L
VDD, LX
2
330
µH2
Boost converter inductor
CS
CS, GND
0.1
µF/100V
Boost converter storage capacitor
D
LX, CS
1N4148
Switching diode
Table 1. VIN = 1.5V
Notes. 2. Murata LQH4N331K04 (8.2
Ω max. DCR)
Component
Connections
Value
Description
RSW
VDD, RSW-OSC
1.0M
Ω
Boost converter oscillator bias resistor
REL
VDD, REL-OSC
2.62M
Ω
EL lamp driver oscillator bias resistor
L
VDD, LX
3
680
µH3
Boost converter inductor
CS
CS, GND
0.1
µF/100V
Boost converter storage capacitor
D
LX, CS
1N4148
Switching diode
Table 2. VIN = 0.9V
Notes. 3. Coilcraft DS1608C-684 (2.2
Ω max. DCR)
Application Information


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