INVC544 Datasheet, PDF (1/2 Pages) Hitachi Semiconductor – High efficiency through the use of piezo transformer

INVC544
This Inverter is designed and adjusted for cold fluorescent lamps used in SX21V001 Series and SX25S001 colour
STN liquid crystal display modules.
FEATURES
♦ High efficiency through the use of piezo transformer
♦ Very small, very thin and low power consumption design
♦ Suitable for low power consumption CFL from 0.6W to 2.0W
♦ External On/Off switching of backlight
♦ Dimmable from 100 down to 30 percent
GENERAL DATA
Item
Value
Unit
Module Dimensions
70 x 18 x 6.5
mm
Weight
7 max
g
Efficiency
80 min
%
Mean Time Between Failure
60.000 min
hrs
(MTBF)
ABSOLUTE MAXIMUM RATINGS
Item
Symbol Condition Min
Input Voltage
V_MAX
-
-
Operating
T_OP
-
5
Temperature
Storage
T_ST
-
-20
Temperature
Humidity
-
-
-
Max
20
50
70
90
Unit
V
°C
°C
% RH
ELECTRICAL CHARACTERISTICS
Item
Symbol Condition Min Typ Max Unit
Input Voltage
Input Current
V_IN
-
6 12.0 17.0 V
I_IN
12V,
160 180 200 mA
Duty 97%
12V
54 60 66 mA
Duty 47%
Lamp Current
I_L
12V,
2.7 3.0 3.3 mA
Duty 97%
12V
1.1 1.3 1.5
Duty 47%
Lamp Power
P_L
12V,
-
1.5 2.8 W
I_L =3mA
Rush Current
12V
-
-
2.5
A
Frequency
f_L
12V,
50 60 70 kHz
Duty 97%
Dimming
Range
-
12V,
- 100- -
%
T=25°C
30
Startup
The unit must start up at 5°C+/- 1°C, DC 6V
Characteristics
MECHANICAL DIMENSIONS
INPUT AND OUTPUT CONNECTORS
Input Connector
Input Housing Connector
MOLEX 53261-0690
-
Output Connector
Output Housing Connector
JST SM02B-BHSS-1
-
INPUT CONNECTOR PIN ASSIGNMENT
Pin No Symbol
Comment
1
VCC
6 - 17V
2
VCC
6 - 17V
3
PWM
PWM Signal for Dimming Control (515 Hz,
3.3-5V, ON Duty 97%-40%)
4
ON/OFF
OFF at Open, ON at High (3.3V-5V)
5
GND
Ground
6
GND
Ground
OUTPUT CONNECTOR PIN ASSIGNMENT
Pin No Symbol
Comment
1
CFL HV
High voltage output
2
GND
GND
70.0 ± 0.5
3.5