SP4427 Datasheet, PDF (2/9 Pages) Sipex Corporation – Electroluminescent Lamp Driver Dual Oscillators with High Drive Capability

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.
V_dd............................................................................................................7.0V
Input Voltages/Currents
HON (pin1)..........................................-0.5V to (V_dd+0.5V)
COIL (pin3)............................................................100mA
Lamp Outputs.............................................................................250Vpp
Storage Temperature....................................................-65˚C to +150˚C
Power Dissipation.......................................................................200mW
SPECIFICATIONS
(T= 25°C; V_dd = 1.5V; Lamp Capacitance = 8000pF; Coil = 20 mH at 70 Ohms; Coil OSC = 220pF, Lamp OSC = 1800pF unless otherwise noted)
PARAMETER
MIN. TYP. MAX. UNIT CONDITIONS
INPUT CHARACTERISTICS
Supply Voltage
Total Supply Current
Quiescent Supply Current
1.5
Volts
10
15 mA Vdd= 1.5V ±5%; Hon= 1.5V
100 200 nA Vdd= 1.5V ±5%; Hon= 0.2V
Hon Voltage On
Hon Current On
Hon Voltage Off
1.1 Vdd
Volts
10 µA Internal pulldown
<Vdd/2 Volts
INDUCTOR DRIVE
Peak Current
Pulse Rate
Duty Cycle
60
mA
3
5
6
kHz
70
75
85 %
LAMP OUTPUT
Differential Voltage
Frequency
Lamp Capacitance
80
110
Vpp
150 250 350 Hz
8000
pF
Bonding Diagram:
ELEN
CAP 1
CAP 2
664A
SP4427
VSS
VDD
EL 1
EL 2
COIL
PAD
EL1
EL2
COIL
VSS
HON
CAP2
CAP1
VDD
X
586.0
586.0
586.0
80.0
562.5
565.0
562.5
588.0
Y
107.0
-143.0
-376.0
-417.0
-397.0
-118.0
114.5
417.0
NOTES:
1. Dimensions are in Microns unless otherwise noted.
2. Bonding pads are 125x125 typ.
3. Outside dimensions are maximum, including scribe area.
4. Die thickness is 380 +/- 25 microns (15 mils +/- 1).
5. Pad center coordinates are relative to die center.
6. Die size 1498 x 1168 ( 59 x 46 mils).
SP4427DS/01
SP4427 Electroluminescent Lamp Driver
2
© Copyright 1997 Sipex Corporation