S-8335A160FT-TB-G Seiko Instruments, S-8335A160FT-TB-G Datasheet
S-8335A160FT-TB-G
Specifications of S-8335A160FT-TB-G
Related parts for S-8335A160FT-TB-G
S-8335A160FT-TB-G Summary of contents
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... Features • Supports four types of LCD panels (1/240 duty, 1/200 duty, 1/160 duty, and 1/120 duty). • Input voltage range: 2.4 to 5.0 V (The S-8335 can be driven by a single direct-coupled lithium battery.) • Output voltage range Common driver positive power supply (VRH) output voltage range(typ.value) (This supply can be varied by on-chip 6-bit electric volume ...
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... VREGSF 11 CRS1 : small current VSS, Note: Except for op-amp X, all of the power for the internal circuits of the S-8335 Series is supplied by the VBAT pins. The power supply for op-amp X uses V Short-circuit the VOUT3 and VDDX pins as shown in the figure above ...
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... Selection Guide 1. Product name S − − − Product list S-8335AXXXFT Series S-8335A240FT-TB-G S-8335A200FT-TB-G S-8335A160FT-TB-G S-8335A120FT-TB-G Note: V and V indicate the typical value of the VRH and VRL output voltage, respectively, RH_min RL_min when the electric volume is set to the minimum, and V value of the VRH and VRL output voltage, respectively, when the electric volume is set to the maximum ...
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... VXO pin voltage Other pin voltage Power dissipation Operating temperature range Storage temperature range Note: Although this IC incorporates an electrostatic protection circuit, the user is urged to avoid subjecting the circuit to an extremely high static electricity or voltage in excess of its performance. 4 Pin No. Pin Name 1 CONT1 ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR Rev.6.0 _01 Electrical Characteristics Note: The data specifications are based on measured results using recommended peripheral parts (see Recommended Peripheral Parts). Common Item Symbol V Input voltage BAT Mode 1 current I MC11 consumption for full oscillation ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR S-8335 Series VRH Generation Step-Up Type DC/DC P Part Item Symbol Output voltage 1 V OUT11 Output voltage 2 V OUT12 Switching I SWP current Switching I SWQP transistor leakage current VOUT1 pin input I VOUT1 current VOUT1 pin sink ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR Rev.6.0 _01 DC/DC P Electric Volume Part Item Symbol Electric volume V OUT adjustment range Potential division precision Electric volume resolution Linearity error Data setup time t sc Data hold time t hc VCLK pulse width t dc ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR S-8335 Series VRL Generation Inverter Type DC/DC Q Part Item Symbol Comparator offset V QEROF EXT2 pin output current I EXT2H I EXT2L Efficiency EFFIQ Step-up Type DC/DC U Part Item Symbol Output voltage V OUT3 Switching current I SWU ...
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... Regulator T Part Item Symbol Output voltage V REGTO VREGTO pin sink current I VREGTOL Conditions µ A, OUTS RS1 = 210 k Ω , RS2 = 270 k Ω = -20 ° +70 ° C (when no RS1, RS2 T OPR temperature characteristics are taken into account) Mode 0.4 V REGSO Conditions For fixed V = S-8335A240FT REGSO 1 =50 µ ...
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... V used, select the resistance RS1 and RS2 values to match the V change the RT1 and RT2 values at the same time, because the RT1 and RT2 values are selected based on V Note 2: CRS1 is not usually necessary. Add the capacitance only when regulator S is oscillating. ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR Rev.6.0 _01 Measurement Circuits 1: VOUT1 CSS VDIN VCLK VSTR_B RT2 2: VDIN VCLK VSTR_B CSS 1 24 CREFU CRT1 RT1 RS1 CRS1 RS2 12 CL6 CL7 CVBAT1 CVBAT2 CREFU RT1 CRT1 CR1 RS1 CRS1 R1 RT2 RS2 ...
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... Operation Overview The output of the reference voltage generation circuit is the input to regulator S. The output of regulator S is the input to regulator T. After the extremely steep rise has been blunted low-pass filter, the output of regulator T becomes the DC/DC P reference voltage. The DC/DC P output (pin name: VOUT1) that is controlled by the electric volume is obtained based on this reference voltage ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR Rev.6.0 _01 2. Step-up type switching regulators (DC/DC P and DC/ MC1 MC2 *: In DC/ variable resistance controlled by the electric volume. The fundamental equations {(1) to (7)} of the step-up type regulators are shown below (see Figure 4). CONT pin voltage (V ) immediately after M1 is turned zero): .......................................................................................................................... ...
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... D IN ................................................................................................. L V − .............................................................................................. t • ) energy is used result, the C . When M1 is turned off, the energy stored transmitted through the ON pin voltage rises dramatically. V OUT ) when the current flowing through the diode to V P-P until V ON OUT V − V ......................................................................................... ...
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... Effective ways to reduce the ripple voltage are to increase the capacitance of the capacitor connected to the output pin and to reduce its ESR. Note: Although this IC has an on-chip soft-start circuit, a rush current flows because the output capacitor (C ) and load capacitance component are charged up via the coil and diode on power application. ...
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... PK V − V • L The energy stored this time is represented by 1/2 Next, when M1 is turned off, the energy stored emitted through ground and a counter voltage ( − OUT Diode forward voltage) D Change with time of current (I dI ...
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... The voltage rise (V ) due to P-P ∆ P OUT OUT ) energy is used result, the C . When M1 is turned off, the energy stored transmitted through the ON pin voltage rises dramatically. V OUT ) when the current flowing through the diode to V P-P until V ON OUT V D t ..................................................................................................... • ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR S-8335 Series The following is obtained when the I ∆ P OUT OUT The following is obtained when equation (27) is substituted into equation (31 − OUT consumed during time t OUT OUT OUT • 1 ...
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... The mode is switched among modes according to the 2-bit input from the MC1 and MC2 pins and the MC3 signal. The MC3 signal is not an input to a pin of this IC signal required for external part control. This signal should be supplied from the LCD driver or LCD controller. ...
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... S-8335 Series VBAT Figure 6 Sample Circuit in Which 2SJ356 is Used When mode 3 (standby mode) is canceled, the mode returns to the one that was in effect before switching to standby mode. For example, if the IC entered mode 3 from mode 1, it will return to mode 1 when mode 3 is canceled. Note 1: ...
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... Figure 9 Block Diagram and Clock Timing of Electric Volume Part VDIN: This is the data input pin to the electric volume. "Data 1" input for the “H” level, and "data 0" input for the "L" level. (A high impedance state is prohibited.) When no data is sent, keep VDIN at the "L" level. VCLK: This is the clock input pin to the electric volume ...
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... Since the register contents are undefined when the power is turned on, they must be reset. Even if the MC1 pin or MC2 pin is set high ("H" level) and the MC3 signal is set low ("L" level) and the step-up operation stops, the electric volume register contents are retained if a voltage of at least applied between the VBAT and VSS pins. Register “ ...
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... Figure 12 shows the output voltage of OP amplifier X when source current is drawn. OP amplifier used for the power supply voltage of OP amplifier Y. Figures 13 and 14 show the output voltage of BAT OP amplifier Y when source current and sink current are drawn, respectively. 2 1.5 1 240 dot,25 ° ...
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... Soft Start The soft-start function blunts the rising edge of the reference voltage V C and an internal resistor so that the rush current can be reduced to some degree corresponding to this SS moderated ascent. However, note that this is not a complete soft start because the switching regulators of the S-8335 Series use PFM control. ...
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... L value. If the L value increases further, the power loss due to the series resistance of the coil increases, and efficiency is reduced. The recommended inductance value is 100 to 150 µH for DC/DC P and 100 to 180 µH for DC/DC Q and DC/DC U. ...
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... For the output capacitor (CL), use a capacitor having a small Electric Series Resistance (ESR) and large capacitance to stabilize the ripple voltage. Standard capacitor values are at least 2.2 µF for CL1 and CL2 and at least 10 µF for CL3. In particular, a tantalum electrolytic capacitor having excellent low temperature characteristics and low leakage current characteristics should be used. A capacitor having a large capacitance produces more stable output and leads to higher efficiency ...
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... MC1 23 CMC1 MC2 22 CMC2 Reference voltage generation circuit REG S VREGSF 11 CL6 CRS1 : small current VSS, Except for op-amp X, all of the power for the internal circuits of the S-8335 Series is supplied by the VBAT pin RA1 RA2 E MC3 RESET Electric volume DC/DC P PFM ...
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... Do not use through holes at locations for connecting CL1 to CL3. • Increasing CL1 makes the output more stable. If the DC/DC P output fluctuates due to ripple, and this causes VQERR to frequently exceed the DC/DC Q error amplifier threshold value, then DC/DC Q oscillates more than necessary and the DC/DC Q efficiency will decrease ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR Rev.6.0 _01 Application Circuit L1 CVBAT1 12 1 VBAT 16 CVBAT2 VBAT VSS 5 VSS 17 MC1 MC1 23 CMC1 MC2 MC2 22 VREGSF CMC2 11 CL6 CRS1 : small current VSS RA1 RA2 MC3 S-8335 VREGSO VREGTF VREGTO EXT2 CL7 CSS ...
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... Figure 22 Power Dissipation of 24-pin TSSOP Package (Unmounted) • Arrange parts so that the line to the VSS pin (indicated by the bold line in Figure 23 short as possible. If this line has resistance and inductance components, the VSS potential of the IC will fluctuate due to the switching current ...
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... When the internal impedance of the power supply (VBAT) is large, the S-8335 Series may not start up. Make sure that the internal impedance of the power supply used is sufficiently small when using this IC. • Make sure that the potential of the VOUT1 pin does not exceed 20 V, which is the absolute maximum rating, when using this IC. ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR S-8335 Series Characteristic Curves 1. Common characteristics (Unless otherwise specified, these graphs show typical data for T Current consumption (for mode 1 when oscillation is stopped [V] BAT Current consumption (mode [V] BAT OP amplifier X part current consumption 8.95 8.9 8 ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR Rev.6.0 _01 DC/DC P part switching current 140 120 100 [V] BAT DC/DC Q part comparator offset voltage − 2 − 1.5 − 1 − 0 [V] BAT EXT2 pin current (I ) EXT2L [V] BAT DC/DC U part switching transistor leakage current ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR S-8335 Series Regulator S part output voltage (vs. V 1.6 1.5995 1.599 1.5985 1.598 1.5975 1.597 [V] BAT VREGSO pin sink current 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 [V] BAT MC1, MC2 pin high level voltage 1 ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR Rev.6.0 _01 2. S-8335A240FT (1/240 duty. Unless otherwise specified, these graphs show typical data for T 25°C.) OP amplifier X part output voltage (V 4 3.5 3 2.5 2 1 500 1000 SOURCE CURRENT amplifier Y part output voltage (vs ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR S-8335 Series DC/DC P part output voltage Point DC/DC P part output efficiency (V BAT 500 1000 µ OUT DC/DC P part output efficiency (V BAT 500 1000 I [ µ A] OUT DC/DC P part output efficiency (V BAT 100 500 1000 µ ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR Rev.6.0 _01 DC/DC Q part output voltage -13 -12 -11 - Point DC/DC Q part output efficiency ( 500 1000 µ OUT DC/DC Q part output efficiency ( 500 1000 µ OUT DC/DC Q part output efficiency ( 500 1000 µ OUT V =3V ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR S-8335 Series DC/DC U part output voltage (V BAT 4 3.5 3 2.5 2 1 200 400 600 µ OUTX DC/DC U part output voltage (V BAT 200 400 600 µ OUTX DC/DC U part output voltage (EV = Mid 200 400 600 µ ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR Rev.6.0 _01 DC/DC U part output efficiency (V BAT 500 1000 µ OUT DC/DC U part output efficiency (V BAT 100 500 1000 µ OUT DC/DC U part output efficiency (V BAT 100 500 1000 µ OUT = 2.4 V) DC/DC U part output ripple voltage ( ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR S-8335 Series 3. S-8335A200FT (1/200 duty. Unless otherwise specified, these graphs show typical data for T 25°C.) DC/DC P part output voltage Point DC/DC U part output voltage (V REFU 5 4 Point OP amplifier Y part output voltage (vs ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR Rev.6.0 _01 DC/DC P part output efficiency (V BAT 500 1000 µ OUT DC/DC Q part output efficiency ( 500 1000 µ OUT DC/DC U part output efficiency (V BAT 100 500 1000 µ OUT = 3.0 V) DC/DC P part output ripple voltage ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR S-8335 Series 4. S-8335A160FT (1/160 duty. Unless otherwise specified, these graphs show typical data for T 25°C.) DC/DC P part output voltage Point DC/DC U part output voltage (V REFU 5 4 Point OP amplifier Y part output voltage (vs ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR Rev.6.0 _01 DC/DC P part output efficiency (V BAT 500 1000 µ OUT DC/DC Q part output efficiency ( 500 1000 µ OUT DC/DC U part output efficiency (V BAT 100 500 1000 µ OUT = 3.0 V) DC/DC P part output ripple voltage ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR S-8335 Series 5. S-8335A120FT (1/120 duty. Unless otherwise specified, these graphs show typical data for T 25°C.) DC/DC P part output voltage Point DC/DC U part output voltage (V REFU 5 4 Point OP amplifier Y part output voltage (vs ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR Rev.6.0 _01 DC/DC P part output efficiency (V BAT 500 1000 µ OUT DC/DC Q part output efficiency ( 500 1000 µ OUT DC/DC U part output efficiency (V BAT 100 500 1000 µ OUT = 3.0 V) DC/DC P part output ripple voltage ...
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... Use of the information described herein for other purposes and/or reproduction or copying without the express permission of Seiko Instruments Inc. is strictly prohibited. The products described herein cannot be used as part of any device or equipment affecting the human body, such as exercise equipment, medical equipment, security systems, gas equipment, or any apparatus installed in airplanes and other vehicles, without prior written permission of Seiko Instruments Inc ...