Sharp Aquos LC-37D90U, Service Manual

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LC-37D90U
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2.19. 95KUCY0273AY (ASSY: IC4701)
HIGH VOLTAGE RESONANT CONTROLLER (E-L6598D13TR)
• Block Diagram [95KUCY0273AY (ASSY: IC4701)]
• Pin Function [95KUCY0273AY (ASSY: IC4701)]
2.20. 95KUCY0244AY (ASSY: IC5701)
SWITCHING POWER CONTROL (FA5518N-H1-TE1)
• Block Diagram [95KUCY0244AY (ASSY: IC5701)]
• Pin Function [95KUCY0244AY (ASSY: IC5701)]
Pin No. Pin Name I/O Pin Function
1 CSS --- Soft Start Timing Capacitor.
2 Rfstart I Soft Start Frequency Setting - Low Impedance Voltage Source - See also Cf.
3 Cf --- Oscillator Frequency Setting - see also Rfmin, Rfstart.
4 Rfmin I Minimum Oscillation Frequency Setting - Low Impedance Voltage Source - See also Cf.
5 Opout O Sense OP AMP Output - Low Impedance.
6 OPon- I Sense Op Amp Inverting Input - High Impedance.
7 OPon+ I Sense Op Amp Non Inverting Input - High Impedance.
8 EN1 I Half Bridge Latched Enable.
9 EN2 I Half Bridge Unlatched Enable.
10 GND --- Ground.
11 LVG O Low Side Driver Output.
12 Vs --- Supply Volatge with Internal Zener Clamp.
13 N.C. --- Not Connected.
14 OUT O High Side Driver Reference.
15 HVG O High Side Driver Output.
16 Vboot O Bootstrapped Supply Voltage.
Pin No. Pin Name I/O Pin Function
1 CS --- Soft start, latch-mode stop.
2 FB I Input for controlling current comparator threshold voltage.
3 IS I Input for monitoring MOSFET current.
4 GND --- Power supply ground.
5 OUT O Output for directly driving a MOSFET.
6 VCC --- Power supply for ICs.
7 N.C. --- No connection.
8 VH I Input terminal for start-up circuit.