SP4405 Datasheet, PDF (2/20 Pages) Sipex Corporation – Low Voltage Electroluminescent Lamp Driver with Regulated Output Voltage

ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at
these ratings or any other above those indicated in the operation sections
of the specifications below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect reliability.
Power Supply, V_BATTERY.....................................................................7.0V
Input Voltages, ELEN (pin 1)....................................-0.5V to (V_DD+0.5V)
Lamp Outputs...............................................................................200V_PP
Operating Temperature...................................................-40˚C to +85˚C
Storage Temperature....................................................-65˚C to +150˚C
Power Dissipation Per Package
8-pin NSOIC (derate 6.14mW/^oC above +70^oC)..................................500mW
8-pin µSOIC (derate 4.85mW/^oC above +70^oC)...................................390mW
The information furnished herein by Sipex has been carefully reviewed
for accuracy and reliability. Its application or use, however, is solely the
responsibility of the user. No responsibility for the use of this information
is assumed by Sipex, and this information shall not explicitly or implicitly
become part of the terms and conditions of any subsequent sales
agreement with Sipex. Specifications are subject to change without
prior notice. By the sale or transfer of this information, Sipex assumes
no responsibility for any infringement of patents or other rights of third
parties which may result from its use. No license or other proprietary
rights are granted by implication or otherwise under any patent or
patent rights of Sipex Corporation.
SPECIFICATIONS
V_BATTERY = 3.0V, L = 470µH/3.9Ω, R_OSC = 450KΩ, C_LAMP = 6.8nF, T_AMB = 25^OC and C_INT = 0.1µF unless otherwise noted; refer to test circuit.
PARAMETER
MIN.
TYP.
MAX. UNITS
CONDITIONS
Supply Voltage, V_DD
Supply Current, I_COIL+I_DD
Coil Voltage, V_COIL
ELEN Input Voltage, V_ELEN
LOW: EL off
HIGH: EL on
Shutdown Current, I_SD=I_COIL+I_DD
INDUCTOR DRIVE
2.2
3.0
4.5
V
39
27
55
70
mA
V_DD=3.0V
V_DD=4.5V
V_DD
4.5
V
-0.25
0
0.25V
V
V_DD-0.25
V_DD
V_DD+0.25
0.1
1.0
µA
V_DD=4.5V
Coil Frequency, f_COIL=f_LAMPx128
Coil Duty Cycle
48.6
kHz
90
%
Peak Coil Current, I_PK-COIL
EL LAMP OUTPUT
60
mA Guaranteed by design.
EL Lamp Frequency, f_LAMP
320
380
500
Hz
Peak to Peak Output Voltage
120
150
160
190
200
V_PP
V_DD=3.0V
V_DD=4.5V
SP4405DS/18
SP4405 Low Voltage Electroluminescent Lamp Driver
2
© Copyright 2000 Sipex Corporation