SP4428 Datasheet, PDF (2/11 Pages) Sipex Corporation – Electroluminescent Lamp Driver High Drive Capability for Low Voltage Applications

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.
TA= +25˚C unless otherwise noted
V ............................................................................................................5V
DD
Input Voltages/Currents
HON (pin1).........................................-0.5V to (V_DD+0.5V)
COIL (pin3)............................................................100mA
Lamp Outputs.............................................................................230V_PP
Storage Temperature....................................................-65˚C to +150˚C
Power Dissipation Per Package
8-pin NSOIC (derate 6.14mW/^oC above +70^oC).................................500mW
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
(T= 25°C; V_DD = 1.5V; Lamp Capacitance = 4.7nF; Coil = 470µH at 4.9 Ohms; C_OSC = 180pF unless otherwise noted) C_INT = 1800pF
PARAMETER
MIN.
TYP.
MAX. UNITS
CONDITIONS
Supply Voltage, V_DD
Supply Current, I_COIL+I_DD
Coil Voltage, V_COIL
HON Input Voltage, V_HON
LOW: EL off
HIGH: EL on
HON Current, EL on
Shutdown Current, I_SD=I_COIL+I_DD
INDUCTOR DRIVE
1.1
1.5
1.7
V
35
45
50
80
mA
V_DD=1.1V, V_HON=1.1V
V_DD=1.5V, V_HON=1.5V
V_DD
1.7
V
-0.25
0
0.25V
V
V_DD-0.25
V_DD
V_DD+0.25
3
15
µA
internal pulldown, V_HON=V_DD=1.5V
0.5
10
µA
V_HON=0V
Coil Frequency, f_COIL
Coil Duty Cycle
28.8
kHz
90
%
Peak Coil Current, I
PK-COIL
EL LAMP OUTPUT
100
mA Guaranteed by design.
EL Lamp Frequency, f_LAMP
Peak to Peak Output Voltage
150
500
T_AMB=+25^OC, V_DD=1.1V
300
450
550
Hz T =+25^OC, V =1.5V
AMB
DD
150
750
T_AMB=-40^OC to +85^OC, V_DD=1.5V
90
120
120
160
V_PP
V_DD=1.1V
V_DD=1.5V
SP4428DS/16
SP4428 Electroluminescent Lamp Driver
2
© Copyright 2000 Sipex Corporation