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Ordering number : ENA0003A
Monolithic Linear IC
LA5663V
Overview
Phase Control Voltage Inverter Control IC
The LA5663V is Phase Control Voltage Inverter Control IC.
Functions
* Phase control technique allows the voltage transformer to be driven at a frequency that provides excellent efficiency. * The phase can be adjusted with an external resistor. * Allows burst adjustment. * Full complement of built-in protection circuits, including over-voltage protection and tube current detection and protection. * High-precision reference voltage system. VREM precision: 1% * The on/off state of the VREM circuit can be controlled independent.
Specifications
Maximum Ratings at Ta = 25C
Parameter Power supply voltage Maximum power drain allowed Operating temperature range Storage temperature range Symbol VCC Pd max Topr Tstg Independent IC. Conditions Ratings 24 440 -30 to 85 -55 to 150 Unit V mW C C
Operating Conditions at Ta = 25C
Parameter Input voltage Oscillation frequency Burst drive frequency Output drive load capacity Symbol VCC fosc fPWM CL1 CL2 Conditions Ratings 4.5 to 23 40 to 500 50 to 1000 0 to 1000 0 to 1000 Unit V kHz Hz pF pF
Any and all SANYO Semiconductor products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO Semiconductor representative nearest you before usingany SANYO Semiconductor products described or contained herein in such applications. SANYO Semiconductor assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor products described or contained herein.
83006 / 53006 MS OT / O2505 MS OT B8-7864,B8-7468 No. A0003-1/15
LA5663V
Electrical Characteristics at Ta = 25C, VCC = 15.0V
Parameter Current drain during standby Current drain during operation Regulator voltage Regulator temperature coefficient Regulator current Reference voltage Reference voltage temperature coefficient Reference voltage current p-channel output voltage "H" level Symbol Ioff Iop Vreg Vreg (T) Ireg Vref Vref (T) Iref Voph1 Voph2 "L" level Clamp level tr tf n-channel output voltage "H" level Vopl1 Vopl2 Vopc trp tfp Vonh1 Vonh2 "L" level Clamp level tr tf Burst drive duty BRIGHT_VR = 2.2V BRIGHT_VR = 1.847V BRIGHT_VR = 1.229V BRIGHT_VR = 0.618V BRIGHT_VR = 0.4V Burst drive duty temperature coefficient BRIGHT_VR = 2.2V BRIGHT_VR = 1.847V BRIGHT_VR = 1.229V BRIGHT_VR = 0.618V BRIGHT_VR = 0.4V Oscillation frequency Oscillation frequency temperature coefficient Burst drive frequency Burst drive frequency temperature coefficient Remote voltage During operation Stopped OP1 output fosc1 fosc1 Vremon Vremoff -VCON1 -VCON2 -VCON_SINK -VCON_SOUR DTC-100% ON threshold voltage DTC-100% OFF threshold voltage SCP Operation start time Threshold voltage V100 V0 tscp SCP (DET_CR) SCP capacity = 0.33F VCC = 22V VCC = 7V -VCOM sink current -VCOM source current 0.27 1.557 100 10 2.16 0.392 0.7 0.23 2.2 0.4 1 0.26 2.24 0.408 1.5 0.29 0.32 1.6 capacity = 1% Ta = 0 to 60C 2 0.7 0.37 1.643 191 202 0.64 213 Hz % V V V V A A V V s V fmax fmin fmax (T) fmin (T) Vonl1 Vonl2 Vopc trn tfn Duty1 Duty2 Duty3 Duty4 Duty5 Duty1 (T) Duty2 (T) Duty3 (T) Duty4 (T) Duty5 (T) fosc1 fosc2 fosc1 (T) fosc2 (T) Relative to VCC, load current of 0mA. Relative to VCC, load current of 10mA. Relative to GND, load current of 0mA. Relative to GND, load current of 10mA. Relative to VCC CL = 500pF CL = 500pF Relative to VCC, load current of 0mA. Relative to VCC, load current of 10mA. Relative to GND, load current of 0mA. Relative to GND, load current of 10mA. Relative to VCC CL = 500pF CL = 500pF VCC = 4.5 to 23V VCC = 4.5 to 23V VCC = 4.5 to 23V VCC = 4.5 to 23V VCC = 4.5 to 23V Ta = 0 to 60C Ta = 0 to 60C Ta = 0 to 60C Ta = 0 to 60C Ta = 0 to 60C capacity = 1% capacity = 1% Ta = 0 to 60C Ta = 0 to 60C 247 195 0 2 2 2 0 258 202 1.3 1.3 269 209 100 86 47 7 90 50 10 94 53 13 0 8 10 650 50 -1.5 -2 0.4 1.2 12 -12 -10 150 200 VCC = 4.5 to 23V, Iref = 0 to 0.1mA Iref = 0.1mA, Ta = 0 to 60C 0 -0.4 -1.2 1.3 1.4 -8 VCC = 23V, DTC = 1.229V, CL = 500pF VCC = 4.5 to 23V, Ireg = 0 to 0.5mA Ireg = 0.5mA, Ta = 0 to 60C -0.3 1.972 2 0.23 0.2 8 3.395 11 3.5 0.23 2 2.028 Conditions min Ratings typ max 5 14 3.605 A mA V % mA V % mA V V V V V ns ns V V V V V ns ns % % % % % % % % % % kHz kHz % % Unit
Continued on next page.
No.A0003-2/15
LA5663V
Continued from preceding page. Parameter Input pin Input current of V_PHASE pin Input current of BRIGHT_VR pin Current of DTC IVPHASE IBRIGHT_VR IVPHASE -0.2 -0.2 -0.2 0.2 0.2 0.2 A A A Symbol Conditions min Ratings typ max Unit
Package Dimensions
unit: mm 3175C
7.8 24 13
5.6
7.6
1 0.65 (0.33)
12 0.15 0.22
1.5max (1.3)
SANYO : SSOP24(275mil)
Pin Assignment
0.1
0.5
No.A0003-3/15
LA5663V
Block Diagram and Application Circuit Example
No.A0003-4/15
LA5663V
Pin Functions
Pin No. 1 Pin name VREM Function ON/OFF terminal of the IC. Equivalent circuit
2 3
SGND IFB
Signal Ground terminal. CCFL electric current waveform input terminal.
4
DET_CR
Rectification (pulse way) waveform of CCFL output terminal.
5
VLOOP_C
Error amplifier output terminal.
6
RECT_C
Phase difference output terminal
7
V_PHASE
Phase difference setup terminal
Continued on next page.
No.A0003-5/15
LA5663V
Continued from preceding page. Pin No. 8 Pin name FLOOP_C Function VCO input terminal. Equivalent circuit
9
C_PWM
Capacitor terminal for the burst drive frequency setup.
10
R_PWM
Resistance terminal for the burst drive frequency setup.
11
BRIGHT_VR
Burst width set up terminal.
12
OVP
Detection input terminal of over voltage protection circuit.
Continued on next page.
No.A0003-6/15
LA5663V
Continued from preceding page. Pin No. 13 14 Pin name N_GATE1 N_GATE2 Function NchMOS drive terminal. NchMOS drive terminal. Equivalent circuit
15 16
PGND P_GATE
Power ground terminal. PchMOS drive terminal.
17 18
VCC -VCON
Power supply terminal. Output voltage is inversely proportional to VCC.
19
SCP
Time constant of short protection circuit setup terminal.
Continued on next page.
No.A0003-7/15
LA5663V
Continued from preceding page. Pin No. 20 DTC Pin name Function Dead time setup terminal. Equivalent circuit
21
C_OSC
Capacitor terminal for the VCO frequency setup.
22
R_OSC
Resistance terminal for the VCO frequency setup.
23
VREF
Standard voltage output terminal.
24
VREG
Regulator voltage output terminal.
No.A0003-8/15
LA5663V
Functional Descriptions
(1) IFB and DET_CR pins The IFB pin connects the CCFL current waveform detected by R10 to the Q4 base with bias VBE. The DET_CR pin output level depends on both the Q4 base voltage less the VF component and the time constant determined by C4 and R2. These connections rectify the AC CCFL current waveform (VAC) for input to the negative side of the ERROR amplifier.
(2) VLOOP_C and PGATE pins The PWM waveform output from the P_GATE pin is the result of the PWM1 amplifier comparing the VLOOP_C voltage and the VOC triangular wave so that the rectified CCFL current waveform from the DET_CR pin has the same potential (0.5V) as the positive side of the ERROR amplifier. This PWM control ensures that the CCFL current remains constant.
No.A0003-9/15
LA5663V
(3) RECT_C pin COMP1 rectifies the CCFL current waveform, plus bias VBE, from the IFB pin. ANDing this waveform voltage with that from point A (this latter has the same phase as NGATE2) averages the two, producing phase difference voltage output from the RECT_C pin.
(4) V_PHASE and FLOOP_C pins COMP2 controls the VCO frequency so that the RECT_C and V_PHASE pins have the same voltage. The RECT_C pin voltage represents a phase difference voltage, so changing the V_PHASE pin voltage adjusts the phase difference.
* The above graph is based on measurements for the IC in isolation. Actual phase difference adjustment requires connection to the piezoelectric transformer.
No.A0003-10/15
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(5) C_OSC and R_OSC pins These inputs determine the VCO oscillation frequency. Use R_OSC to change the basic frequency.
(6) C_PWM, R_PWM, and BRIGHT_VR pins These inputs determine the burst drive frequency. Use the BRIGHT_VR pin voltage to change the burst width and R_PWM to change the burst drive frequency.
* The above graph is based on measurements for the independent IC.
No.A0003-11/15
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(7) -VCON and DTC pins The -VCON pin output voltage is inversely proportional to VCC. Using this output to create the DTC pin input voltage specifies a maximum duty dependent on VCC. On the other hand, connecting this output to the V_PHASE pin input via the resistances R14 and R15 specifies a phase setting dependent on VCC. (Eliminate resistances R14 and R15 if such a VCC-dependent phase setting is not necessary.) * The Specifications stipulate OP1 output electrical characteristics for the -VCON pin.
-VCON = VREF x (1 +
R2A R2A ) - (VCC - Vsat) x ( ) R1A R1A
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(8) N_GATE1 and N_GATE2 pins These pins drive the n-channel MOSFET. The frequency is 1/4 the VCO frequency.
(9) VREM pin This input turns the IC on and off. Turning the IC off reduces the current drain to 5A or less.
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(10) OVP This is the over-voltage detection terminal. An OVP terminal gains a voltage that is divided by resistances. It works with threshold voltage 2V. It becomes the condition of the table at the time of the movement.
Terminal P_GATE VLOOP_C FLOOP_C N_GATE1, 2 Hi Low Low Drive Condition
And once over-voltage protection works, it doesn't revert soon even if OVP is lower than 2V again. It reverts after fixed time (the period of C_PWM) passes.
(11) SCP CCFL electric current decrease by the CCFL opening and so on. And a charge begins in the condenser connected to SCP when the voltage of DET_CR was less than 0.26V. Latch is set when the voltage of the condenser is more than 2V. The voltage of each terminal at this time becomes a table. The charge of the condenser is stopped in the burst Duty again at the time of off period.
Terminal P_GATE VLOOP_C FLOOP_C N_GATE1, 2 Hi Low Low Low Condition
tscp = 3.03x106xC14x(100/burst duty) [S] Example: tscp = 1 [S] (At C14 = 0.33F, burst duty = 100%)
No.A0003-14/15
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(12) The polarity of the piezoelectric transformer You must put logic with the transformer together, because a phase is controlled by comparing the common mode wave shape of N_GATE2 with the common mode wave shape of CCFL electric current. Connect a piezoelectric transformer so that each wave shape may become relations like a figure.
Specifications of any and all SANYO Semiconductor products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. SANYO Semiconductor Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor products (including technical data,services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Semiconductor Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO Semiconductor product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO Semiconductor believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of May, 2006. Specifications and information herein are subject to change without notice.
PS No.A0003-15/15

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