IP3101 Datasheet, PDF (1/9 Pages) List of Unclassifed Manufacturers – Versatile Gate Driver

IP3101
Versatile Gate Driver
DESCRIPTIONS
The IP3101 provides simple and high performance
control functions for the half bridge L/C resonant sys-
8DIP
tem, specially electronic ballast . It internally inte-
grated the essential functions of the half bridge L/C
resonant system so the conventional system can be
realized a minimum board area, small external com-
ponents and low power dissipation.
8SOP
Internally integrated soft-start circuit eliminated the
need for external soft-start circuit. And the initial pre- _FEATURES
heating switching frequency and preheating time can
be easily programmable with only one capacitor
- Internal Soft Start
(preheating frequency capacitor) and one resistor _{- Programmable Soft Start Frequency}
(preheating time capacitor) depending on the types of _{- Programmable Preheating Time}
lamps. Also the normal operating frequency can be _{- Very Precision Internal Operating Frequency(+5%)}
easily adjusted by timing resistor (Rt) and timing ca- _{- No Lamp Protection or Over Current Protection}
pacitor (Ct).
- Precision Internal Reference Voltage
The cold cathode current can be limited by changing _{- 8DIP, 8SOP Packages}
the normal operating frequency to soft-start frequency
with an external small signal transistor. No lamp pro-
tection or any required protection like over current
ORDER INFORMATIONS
protection can be realized by adding an external
small signal transistor.
Device
Package Operating Temp
BLOCK DIAGRAM
IP3101
I3101
8DIP
8SOP
-25^°C ~ 125^°C
PHT ¹
CT ²
Vz
Ipht
1.5V
Ichg
Voltage
Pre-Heat
Iss
Reference
(Vz,Vref)
Oscillator
Reference
Output
UVLO
(10V/8V)
Vcc
UVLO
OSCILLATOR
Idis
I(CT)=I(RT)+I(PHF)
OUTPUT
LOGIC
Vcc
I(CT)
RT 3
I(RT)
I(PHF)
OSC, PHT,
HO,LO
Shutdown
Iss
Delay Timer
PHF 4
1.0V
Protection
Comparator
8 ^VCC
7 _HO
6 LO
5 _GND
September. 2003
http://www.interpionsemi.com
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