FAN7547A Datasheet PDF - Fairchild Semiconductor
| Part Number | FAN7547A | |
| Description | LCD Backlight Inverter Drive IC | |
| Manufacturers | Fairchild Semiconductor | |
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There is a preview and FAN7547A download ( pdf file ) link at the bottom of this page. Total 9 Pages | ||
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FAN7547A
LCD Backlight Inverter Drive IC
February 2007
Features
Backlight Lamp Ballast and Soft Dimming
Reduced Number of Components
Wide Range of Operating Voltage (6 to 30V)
Precision Voltage Reference Reduced to 3.4%
Low Standby Current (Typically 50µA)
Soft-Start Function
PWM Control
Analog, Mixed, and PWM Dimming Function
P-Channel MOSFET Drive
Open-Lamp Protections (OLP)
Shutdown Protections (SDP)
14-Pin SOP
Description
The FAN7547A provides all control functions for a
current-fed, push-pull, self-oscillation type converter and
also contains a pulse-width-modulated (PWM) controller
to develop a supply voltage. Typical operating frequency
range is from 30kHz to 100kHz, depending on the cold
cathode fluorescent lamp (CCFL) and the transformer's
characteristics.
14-SOP
Ordering Information
Part Number
FAN7547AM
FAN7547AMX
Package
14-SOP
www.DataSheet4U.com
Pb-Free
Yes
Operating Temperature Range Packing Method
-25°C ~ +85°C
Tube
Tape & Reel
© 2005 Fairchild Semiconductor Corporation
FAN7547A Rev. 1.0.3
www.fairchildsemi.com
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Electrical Characteristics
Unless otherwise noted, these specifications apply to the operating ambient temperatures for the FAN7547A with
-25°C ≤ TA ≤ 85°C and VCC = 10V.
Symbol
Parameter
UVLO SECTION
VST Start Voltage
IST Start Current
ICC Operating Current
REFERENCE SECTION
Vref Reference Voltage
SOFT-START SECTION
ISS Soft -Start Charge Current
Ipwm PWM Discharge Current
OSCILLATOR SECTION
fpwm Operating Frequency
Vpwmh Osc High Voltage
VpwmI Osc Low Voltage
DIMMING SECTION
Va Analog Dimming Range
Vb
Va PWM Dimming Range
Vb
Va Mixed Dimming Range
Vb
MODE SELECTION
Vsa Analog Dimming Select Voltage
Vsp PWM Dimming Select Voltage
Vsc Mixed Dimming Select Voltage
OPEN-LAMP PROTECTION
Vopen Open-Lamp Detect Voltage
SHUTDOWN PROTECTION
Isd Shutdown Current
Vsd Shutdown Voltage
OUTPUT SECTION
VOH Output High Voltage
VOL Output Low Voltage
tr Rising Time
tf Falling Time
VUV
Output Voltage with UVLO
Activated
Conditions
Min. Typ. Max. Unit
VCC = 4.5V
7V < VCC< 30V
4.9 5.4 5.9 V
50 200 μA
5.5 8.0 mA
TJ = 25°C, Iref = 0mA, 7V < VCC< 30V 2.95 3.05 3.15 V
CSS = 4V
CSS = 4V
33 40 47 μA
48 70 85 μA
7V < VCC < 30V
170 200 230
1.3
0.1
Hz
V
V
Vms > 2V
Vms < 1V
Vms =1.5V or open
03
3
2.1 2.5 2.9
0 2.5
1.2 3.0
03
V
V
V
V
V
V
1.5 2.0 2.5
0.7 1.0 1.3
1.2 1.5 1.8
V
V
V
7V < VCC < 30V
7V < VCC < 30V
2.5 3.0 3.5 V
1 2 3 μA
2.5 3.0 3.5 V
VCC = 10V
VCC = 10V
VCC = 10V
VCC = 10V
VCC = 4V
8 9 10 V
1V
120 200 ns
60 120 ns
2 4V
© 2005 Fairchild Semiconductor Corporation
FAN7547A Rev. 1.0.3
5
www.fairchildsemi.com
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for FAN7547A electronic component. |
| Information | Total 9 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ FAN7547A.PDF Datasheet ] | |
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