zsp4425 ywyn Corporation, zsp4425 Datasheet - Page 7

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

NOTE:
Keep coil as close to
ZSP4425 as possible
Test Circuits
NOTE:
Keep coil as close to
ZSP4425 as possible
Zywyn Corporation
Zywyn
V
V
IN
IN
=+1.5V
=3V
IN4148
IN4148
V
BATTERY
+
-
C
C
OSC
OSC
C
C
INT
0.1μF Low ESR
Decoupling
Capacitor
int
=180pF
=180pF
=1800pF
= 470pF
V
Coil
D1
C
V
D1
C
Coil
SS
OSC
Figure 3. +1.5V Test Circuit
Figure 4. +3.0V Test Circuit
SS
OSC
ZSP4425
ZSP4425
7
HON
EL2
V
EL1
HON
EL2
V
EL1
DD
DD
NOTE:
Keep high voltage traces
short and away from V
and clock lines
HON=V
HON=0V=OFF
NOTE:
Keep high voltage traces
short and away from V
and clock lines
HON=V
HON=0V=OFF
DD
DD
=V
0.1 μF Low ESR
Decoupling
Capacitor
=ON
BATTERY
=ON
DD
DD
100Ω
100 Ω
October 2005
8.2nF
4nF
ZSP4425
rev. 04