Electroluminescent Lamp Driver
General Description:
The DurelÒ D356A is part of a family of highly integrated EL drivers based on Durel’s patented thre...
Description
General Description:
The DurelÒ D356A is part of a family of highly integrated EL drivers based on Durel’s patented three-port (3P) topology, which offers built-in EMI shielding. This high efficiency device is well suited for backlighting most timepieces and liquid crystal displays for portable electronic applications.
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Data Sheet D356A Electroluminescent Lamp Driver IC
6A
5 D3
MSOP-8
Features
High Efficiency Low Voltage Operation Small System Footprint Capacitor or External Clock LF Control
Applications
Watches Data Organizers/PDAs Pagers LCD and Keypad Backlighting
Lamp Driver Specifications:
(Using Standard Test Circuit at Ta=25 °C unless otherwise specified.)
Parameter
Standby Current Supply Current Enable Current Output Voltage Lamp Frequency Inductor Frequency
Symbol
I Vout LF HF
Minimum
Typical
10 23 50 135 310 23
Maximum
100 30 75 220 390
Unit
nA mA uA Vpp Hz kHz
Conditions
E = GND E = 3.0V E = 3.0V CLF=5.0 nF
110 230
Standard Test Circuit
1 2
1.8mH (3 Ohms)
GND LVOUT L+
D356A
E CLF2 CLF1 V+
8 7
GND OFF
3.0V ON
5.0nF
3 4
6 5
0.1µF
Load B
3.0 Vdc
1
Load B*
47 nF 100W 10kW 22 nF
Typical Output Waveform
* Load B approximates a 5in2 EL lamp.
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Absolute Maximum Ratings:
Parameter Supply voltage Operating Range Withstand Range Enable Voltage Output Voltage CLF Voltage Operating Temperature Storage Temperature Symbol V+ E VOUT VCLF Ta Ts Minimum 1.0 -0.5 -0.5 0 -40 -65 Maximum 7.0 10.0 (V+) +0...
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