kia3802f Korea Electronics (KEC GROUP), kia3802f Datasheet

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kia3802f

Manufacturer Part Number
kia3802f
Description
Lcd Backlight Inverter Controller
Manufacturer
Korea Electronics (KEC GROUP)
Datasheet
2005. 12. 6
LCD BACKLIGHT INVERTER CONTROLLER
FEATURES
APPLICATION
BLOCK DIAGRAM
Input voltage range of 7V to 20V
Low cost, push-pull inverter topology
Internal open lamp protection and over voltage detecting
Built-in stand-by function
Integrated with burst mode control, wide dimming range
Soft-Start
Timer function
Reduces the number of componerts
Supports multiple CCFLs
LCD Monitor
Notebook Computer
LPWM
CMP
V
SST
LCT
EN
CT
DIM
RT
1
2
3
4
5
6
7
8
Revision No : 0
SEMICONDUCTOR
TECHNICAL DATA
OSC
CT
RT
LCT
V
LPWM
Mode
Burst
DIM
Err Amp
Open
PWM Comparator
OUT
3V
TIMER
OUT
2.5V
Push Pull Controller
CLK
Reference
Over Voltage
- Q
+ Q
V
V
CC
ref
OUT
BIPOLAR LINEAR INTEGRATED CIRCUIT
16
1
V
V
CC
CC
D
2V
KIA3802F
A
KIA3802F
P
16
15
14
13
12
11
10
9
9
FLP-16
8
IN -
TIMER
V
OVP
VCC
OUT2
GND
OUT1
REF
DIM
B1
B2
A
D
G
H
L
T
P
L
MILLIMETERS
0.15+0.1/-0.05
0.20+0.1/-0.05
9.88 0.2
3.94 0.2
6.00 0.3
1.63 0.2
0.65 0.2
0.4 0.1
1.27
+ _
+ _
+ _
+ _
+ _
+ _
1/5

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kia3802f Summary of contents

Page 1

... PWM Comparator KIA3802F BIPOLAR LINEAR INTEGRATED CIRCUIT FLP- TIMER 15 V ref Reference V 14 REF 13 OVP OUT 12 VCC 2V Over Voltage OUT2 - Q 10 GND V CLK + OUT1 KIA3802F L DIM MILLIMETERS + _ A 9.88 0 3.94 0 6.00 0 0.4 0.1 G 0.15+0.1/-0. 1.63 0 0.65 0.2 P 1.27 T 0.20+0.1/-0.05 1/5 ...

Page 2

... RECOMMENDED OPERATING CONDITIONS Rating Power Supply Voltage Oscillation Frequency Timing Resister 2005.12.6 Revision KIA3802F Enable input. Compensation output of the error amplifier. Soft-start Capacitor. Timing capacitor. Timing resistor set operating frequency. Triangular wave for burst-mode dimming; frequency. Input analog signal for burst-mode dimming control. ...

Page 3

... Output Low State Output Voltage High State Output Voltage Rise Time Fall Time Note 1 : The Lamp Oscillotor Frequency is the half of the ramp wave Frequency. Note 2 : Only Verified by Simulation. Not 100% tested. 2005.12.6 Revision KIA3802F Symbol Test Conditions REF REF V ...

Page 4

... C6 2.2u C9 470n V SOFT REF C8 1.2n CT OVP C17 R3 10k 470n R11 LCT OUT2 39 V GND DIM R4 20k 39 LPWM OUT1 R8 KIA3802F FB R23 1k D1 KDS226 R22 2.0k C21 OVP 39n R6 C11 100k 100n VIN C20 22p/3kV R12 10k C2 100n R9 10k TRANS 1 R10 30K ...

Page 5

... DIM Transformer Design 1. Transformer Turns Ratio Calculation of the required turns ratio involves the estimation of two 2005.12.6 Revision KIA3802F critical factors. 1). Estimating Minimum Primary Voltage. The minimum primary voltage is obtained from the value of the low supply voltage. 2 2). Estimating Maximum Secondary Voltage. ...

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