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General Description:
The DurelD371 ispartofafamilyofhighlyintegratedELdrivers
based on Durel’s patented three-port (3P) topology, which offers
built-in EMI shielding. This high-performance device uses a
proprietarycircuitdesignforprogrammablewave-shapingforlow-
noise performance in applications that are sensitive to audible and
electrical noise.
Data Sheet
D371A
Electroluminescent
Lamp Driver IC
MSOP-10
• Flexible Wave Shaping Capability
• Cellular Phones and Handsets
• HighEfficiency
• Data Organizers/PDAs
• Small Package Size
• LCD and Keypad Backlighting
• Adjustable Output Frequency
• HighVoltageACOutput
• ExternalClockCompatible
Features
Applications
Standard Test Circuit
nA
E = GND
mA
E = 3.0V
uA
E = 3.0V
Vpp
Hz
CLF=3.9 nF
kHz
CHF=68 pF
Parameter
Symbol
Minimum
Typical
Maximum
Unit
Conditions
(Using Standard Test Circuit at Ta=25 °C unless otherwise specified.)
Lamp Driver Specifications:
Standby Current
5
1000
Supply Current
I
15
18
Enable Current
15
Output Voltage
Vout
160
188
220
Lamp Frequency
LF
190
260
330
Inductor Frequency
HF
23
1
2
3
4
5
6
7
8
9
10
CHF
CLF
E
DCH
GND
N/C
L-
Vout
L+
V+
Load A
3.9 nF
68 pF
D371A
+3.0 V
0.1 uF
2.2 mH /
4 Ohms DCR
OFF
ON
GND
3.0V
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