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Fairchild Semiconductor Electronic Components Datasheet

SG6518 Datasheet

LCD Power Supply Supervisor

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December 2007
SG6518
LCD Power Supply Supervisor
Features
ƒ Two Adjustable Voltage Sense Input Pins: VSV1
and VSV2
ƒ Over-voltage Protection (OVP) for 5V, 12V, and two
outputs: V1, V2
ƒ Over-current Protection (OCP) for 5V, 12V, and two
outputs: V1, V2
ƒ Adjustable Voltage Control Sense Input of V1 and
V2 (ADJ-V1, ADJ-V2)
ƒ Open-drain Output for FPO Pin
ƒ 13ms PSON Control Delay
ƒ No Lockup During the Fast AC Power-on/off
ƒ Wide Supply Voltage Range: 4V to 15V
ƒ Programmable Over-temperature Protection (OTP)
Description
SG6518 provides the over-voltage protection (OVP) for
5V, 12V, and outputs V1 and V2 as well as over-current
protection (OVP) for 5V, 12V, and outputs V1 and V2.
When the voltage of OTP pin decreases to 1.2V, the
over-temperature protection (OTP) function is enabled.
FPO is set to HIGH to turn off the PWM control IC. The
voltage difference across the external current shunt is
used for OCP functions. An external resistor can be
used to adjust protection threshold.
The power supply is turned on after a 13ms delay time
when the PSON signal is set from LOW to HIGH. To
turn off the power supply, PSON signal is set from
HIGH to LOW with the delay time 13ms.
Applications
ƒ LCD Power Supply
Ordering Information
Part Number
Operating Temperature Range
SG6518DZ
-40°C to +85°C
SG6518SZ
-40°C to +85°C
All packages are lead free per JEDEC: J-STD-020B standard.
Package
16-DIP
16-SOP
Packing Method
Rail
Reel & Tape
© 2007 Fairchild Semiconductor Corporation
SG6518 • Rev. 1.0.0
www.fairchildsemi.com
Free Datasheet http://www.datasheet4u.com/


Fairchild Semiconductor Electronic Components Datasheet

SG6518 Datasheet

LCD Power Supply Supervisor

No Preview Available !

Application Diagram
Figure 1. Typical Application
Note:
1. R1 = 200and R2 = 200are suggested.
2. C1 and C2 are suggested to be 100nF to 2.2uF.
Internal Block Diagram
Figure 2. Function Block Diagram
Note:
3. The VSV1 pin is the power pin for the two OCP comparators.
© 2007 Fairchild Semiconductor Corporation
SG6518 • Rev. 1.0.0
2
www.fairchildsemi.com
Free Datasheet http://www.datasheet4u.com/


Part Number SG6518
Description LCD Power Supply Supervisor
Maker Fairchild Semiconductor
Total Page 11 Pages
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