zsp4425 ywyn Corporation, zsp4425 Datasheet - Page 2

• Manufacturer Part Number: zsp4425
• Description: Electroluminescent Lamp Driver For 1.5v Or 2.2v To 4.5v Applications
• Manufacturer: ywyn Corporation

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 is
not implied. Exposure to absolute maximum rating condi-
tions for extended periods of time may affect reliability.
V
Input Voltages/Currents
Lamp Output ............................................................ 230V
Storage Temperature ................................. –65°C to +150°C
Operating Temperature ................................ –40°C to +85°C
Power Dissipation Per Package
Electrical Characteristics
T
otherwise noted.
Zywyn Corporation
A
DD .................................................................................................
Symbol
V
I
V
V
I
I
INDUCTOR DRIVE
f
I
EL LAMP OUTPUT
f
V
COIL
HON
SD
COIL
PK-COIL
LAMP
HON (pin 1) .................................... –0.5V to (V
COIL (pin 3).......................................................100mA
8-pin NSOIC (derate 6.14mW/°C above +70°C) ... 500mW
8-pin μSOIC (derate 4.85mW/°C above +70°C) ... 390mW
= +25°C, V
DD
COIL
HON
PP
= I
+ I
= f
Zywyn
COIL
DD
LAMP
DD
X 64
= +1.5V, C
Parameter
Supply Voltage
Supply Current
Coil Voltage
HON Input Voltage
LOW: EL off
HIGH: EL on
HON+V
Shutdown Current
Coil Frequency
Coil Duty Cycle
Peak Coil Current
EL Lamp Frequency
Peak-to-Peak Output Voltage
LAMP
DD
= 8200pF with 100Ω series resistance, Coil = 470μH at 4Ω, C
Current
DD
Condition
HON ties to V
V
HON ties to V
Internal pull-down,
V
V
Guaranteed by design
T
T
+0.5V)
A
A
HON
HON
HON
+7.0V
= +25°C, V
= +25°C, V
PP
= V
= V
= V
DD
2
DD
DD
= 0V: V
Storage Considerations
Storage in a low humidity environment is preferred. Large
high density plastic packages are moisture sensitive and
should be stored in Dry Vapor Barrier Bags. Prior to usage,
the parts should remain bagged and stored below 40°C
and 60%RH. If the parts are removed from the bag, they
should be used within 48 hours or stored in an environ-
ment at or below 20%RH. If the above conditions cannot
be followed, the parts should be baked for four hours at
125°C in order remove moisture prior to soldering. Zywyn
ships product in Dry Vapor Barrier Bags with a humidity
indicator card and desiccant pack. The humidity indicator
should be below 30%RH.
The information furnished by Zywyn has been carefully
reviewed for accuracy and reliability. Its application or
use, however, is solely the responsibility of the user. No
responsibility of the use of this information become part of
the terms and conditions of any subsequent sales agree-
ment with Zywyn. Specifications are subject to change
without the responsibility for any infringement of patents
or other rights of third parties which may result from its
use. No license or proprietary rights are granted by impli-
cation or otherwise under any patent or patent rights of
Zywyn Corporation.
= +1.5V
= +1.5V; See Figure 2
DD
DD
DD
DD
; See Figure 2
= +1.5V
= +1.5V
COIL
= +1.5V
INT
= 1800pF, C
– 0.25
Min
250
120
1.1
1.1
1.1
25.6
Typ
400
160
OSC
1.5
1.5
90
30
0
1
= 180pF, unless
Max
0.25
600
1.7
1.7
1.7
60
90
5
3
October 2005
ZSP4425
Units
kHz
mA
mA
mA
rev. 04
μA
Hz
%
V
V
V
V