S-8331 Seiko Instruments USA, S-8331 Datasheet
S-8331
Related parts for S-8331
S-8331 Summary of contents
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... Built-in CR oscillation circuit: Oscillating frequency: 180 kHz (typ.) (A series) Oscillating frequency: 50 kHz (typ.) (B series) • 8-pin SSOP plastic package • 8-bit built-in electric volume circuit • External transistor type is available (S-8331 Series) • Lead-free products Package Package name 8-Pin SSOP ...
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... Product category A: fosc=180 kHz B: fosc= 50 kHz Power transistor 0: Built-in switch 1: External transistor S-8330BXXFS Series S-8330B20FS-T2-G S-8330B22FS-T2-G S-8330B24FS-T2-G S-8330B26FS-T2-G S-8330B28FS-T2-G S-8330B30FS-T2-G Seiko Instruments Inc. www.DataSheet4U.com Rev.5.1 L VIN Rb EXT External Transistor Cb VSS (2) S-8331 Series S-8331AXXFS Series Series S-8331A20FS-T2-G S-8331A22FS-T2-G S-8331A24FS-T2-G S-8331A26FS-T2-G S-8331A28FS-T2-G S-8331A30FS-T2-G _00 ...
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... External transistor connection pin (Note 2 ) Shutdown pin 5 7 “H”: normal operation ON / OFF “L”: stop stepping up operation 8 V GND pin SS Note 1: S-8330 Series: Open drain output Note 2: S-8331 Series: CMOS output Seiko Instruments Inc. www.DataSheet4U.com S-8330/8331 Series Description (stepping up operation) 3 ...
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... Note 1: When mounted on board [Mounted board] (1) Board size : 114.3 mm × 76.2 mm × t1.6 mm (2) Board name : JEDEC STANDARD51-7 Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions. (1) When mounted on board ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL SWITCHING REGULATOR Rev.5.1 _00 Electrical Characteristics 1. S-8330A Series Step-Up Switching Regulator Items Symbols S-8330A20FS S-8330A22FS Output voltage range VOUT S-8330A24FS S-8330A26FS S-8330A28FS S-8330A30FS Output voltage accuracy Input voltage VIN Current consumption 1 ISS1 V IN Current consumption 2 ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL SWITCHING REGULATOR S-8330/8331 Series Externally attached parts: Coils : CD54 (47 μH) of Sumida Corporation Diodes : MA720 Schottky type of Matsushita Electric Industrial Co., Ltd. Capacitors: F93 tantalum type (two circuits 4.7 μF are connected in parallel) of Nichicon Corporation =VOUT Max output voltage /24 kΩ ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL SWITCHING REGULATOR Rev.5.1 _00 2. S-8330B Series Step-Up Switching Regulator Item Symbol S-8330B20FS S-8330B22FS Output voltage range VOUT S-8330B24FS S-8330B26FS S-8330B28FS S-8330B30FS Output voltage accuracy Input voltage VIN Current consumption 1 ISS1 V IN Current consumption 2 ISS2 V IN ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL SWITCHING REGULATOR S-8330/8331 Series Externally attached parts: CD54 (47 μH) of Sumida Corporation Coils : Diodes : MA720 Schottky type of Matsushita Electric Industrial Co., Ltd. Capacitors: F93 tantalum type (two circuits 4.7 μF are connected in parallel) of Nichicon Corporation V =5V,V =VOUT Max output voltage /24 kΩ IN OUT ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL SWITCHING REGULATOR Rev.5.1 _00 3. S-8331A Series Step-Up Switching Regulator Item Symbol S-8330A20FS S-8330A22FS Output voltage range VOUT S-8330A24FS S-8330A26FS S-8330A28FS S-8330A30FS Output voltage accuracy Input voltage VIN Current consumption 1 ISS1 V IN Current consumption 2 ISS2 V IN ...
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... Externally attached parts: CD54 (47 μH) of Sumida Corporation Coils : Diodes : MA720 Schottky type of Matsushita Electric Industrial Co., Ltd. Capacitors: F93 tantalum type (two circuits 4.7 μF are connected in parallel) of Nichicon Corporation. Transistors: 2SD1624 of Sanyo Electric Co., Ltd. Base resistance (Rb):1.0 kΩ Base capacitor (Cb):2200 pF (ceramic type =VOUT Max output voltage/24 kΩ ...
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... Note 1: An electric volume has 8-bit resolution. However, its error in linearity may exceed ±1/2LSB only before and after switching from 127 to 128 volume is used within the variable range its error in linearity corresponds to 6 bits (±2.4% potential division accuracy is ensured). ...
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... VIN *300Ω Not needed in the *S-8331 Series. 3 VIN A CONT ON/OFF VSS 4 A VIN CONT(EXT) *300 Ω ON/OFF VSS *5 Not needed in the *S-8331 Series. 12 Other Open Pins Meas A Pin VOUT CONT(EXT) VSTRB ON/OFF VCLK VSS VDIN VOUT VSTRB VCLK VDIN ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL SWITCHING REGULATOR Rev.5.1 _00 5 VIN CONT + ON/OFF − VSS 6 1kΩ + 2200pF − VOUT VSTRB + VCLK − VDIN VIN VOUT EXT VSTRB ON/OFF VCLK VSS VDIN Figure 5 Measurement Circuits Seiko Instruments Inc. www.DataSheet4U.com S-8330/8331 Series ...
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... Also, the internal soft start circuit controls the rush current and the output voltage overshoot to be generated when the IC starts the step-up operation by setting the power off pin to "H" level. At powering ON the IC, the rush current flows to charge up capacitive components of output capacitor "C ...
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... I I OUT PK ⎝ L ⎛ ⎜ ∴ = − • ⎜ OUT ⎝ V OUT t when I =0 (the energy of the inductor is completely transmitted). Based on equation (7) OFF L ⎛ ⎞ ⎜ ⎟ = OFF ⎜ ⎟ + − ⎝ ⎠ I OUT When substituting equation (10) for equation (9): ⎛ ...
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... When substituting equation (15) for equation (11): − • PK OUT V − The effective methods to reduce the ripple voltage are to maximize the capacitance of the capacitor connected to the output pin and to minimize ESR ⎞ ⎛ ⎞ • ⎟ + • ⎟ ⎜ PK ...
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... M clamping voltage so as not to apply high voltage (20V or more) of the rated voltage between the gate and the source of the 2SJ356. However, when the circuit is used below, a Zenor diode is not needed. Invalid current flowing into resistors R ...
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... The S-8330/31 series incorporates an electric volume with an 8-bit shift register and an 8-bit latch. The output voltage is variable in the width The output voltage can be held in the data transmission mode because the data read in the shift register is fetched into the latch by unshyncronized strobe input ...
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... S-8331A Series: The switching transistor is externally attached and the oscillating frequency is 180 kHz (typ.). Its target is the output current more. High output ...
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... OSC power source of input voltage V 8330A30FS responds to your requirements because f I =174 mA is found out as shown in equation (17 result, you can select an inductor for which PK value μH and the allowable current is 174 mA or more. A limitation relating to the maximum value I less. ...
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... Externally-attached transistors (S-8331 Series) The output current can be increased by externally attaching a transistor to the S-8331 Series. A bipolar (NPN) type or an enhancement (Nch) MOS FET type of transistor can be used as an external transistor. 5.1 Bipolar NPN type Figure 16 shows a circuit example using the 2SD1624 manufactured by Sanyo Electric Co ...
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... Figure 14 shows a circuit example using the 2SK2159 manufactured by NEC Electronics Corporation as a MOS FET transistor (Nch). Use an Nch power MOS FET as a MOS FET. The EXT pin in the S- 8331 series can drive a MOS FET with approx.1000 pF gate capacitance. The ON reisistor of the MOS FET depends upon a difference between voltage input voltage V FET and thereby affects the output amperage and the efficiency ...
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... External PWM Controller − CR Oscillator VREF RESET Figure 15 S-8330 Series SD + PWM Controller − REF Oscillator RESET ON/OFF Figure 16 S-8331 Series Seiko Instruments Inc. www.DataSheet4U.com S-8330/8331 Series ZD V OUT VDIN VCLK VSTRB ZD V OUT VDIN VCLK VSTRB + CL − − 23 ...
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... Make sure that a loss in the switching transistor (particularly at high temperatures) does not exceed the allowable power dissipation. Configure parts and components so that the line to the VSS pin (indicated by the bold line shown in Figure 17) becomes short as much as possible resistor and/or an inductance component stays on the line, the VSS potential of the IC varies depending upon the switching current ...
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... Figure 18 Large Size LCD Panel Drive Power Supply This is an output voltage step-up circuit using the S-8331 Series more output voltage, i.e., the maximum voltage of the S-8330/8331 Series, is available by dividing the output voltage by external resistors RA and RB and feeding back to V pin varies by switching the electric volume ...
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... Sumida Corporation (CEE93 6375-002 non-gap type) when the output current at the positive side is the same as that at the negative side. Also this circuit is targeted at applications at low load. The use kHz product with low switching frequency improves the efficiency at load of approx ...
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... Make sure that the current flowing into the transducer under the specified operational conditions does not exceed the allowable current. For example, if load current is larger than the above circuit, magnetic saturation occurs and the IC may be damaged at the worst. ...
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... SS2 S-8331A =5V,V =30V IN OUT 180 160 V =9V IN 140 120 I 100 SS1 (μ 100 -40 I — Temp SSS S-8331A 0.10 0.08 0.06 I SSS (μA) 0.04 V =9V IN 0. =2V 0. 100 -40 MaxDuty — Temp S-8330A/31A 100 90 V =2,5, MaxDuty (%) 70 60 ...
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... IN V — V SH1,2 IN S-8330A/B/31A 1.60 1.40 1.20 V SH1,2 (V) 1.00 0.80 0. — V SHC1,2 IN S-8330A/B/31A 1.60 1.40 1.20 V SHC1,2 (V) 1.00 0.80 0. — V EXTL IN S-8331A Ta=- Ta=25 EXTL 5 (mA) Ta= (V) VSL — VIN S-8330A/B/31A 0.90 0.80 Ta=85 0.70 V Ta=25 SL (V) 0.60 Ta=-40 0. — V ...
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... Output Vol. (5V/div (1msec/div) 30 S-8330A30 (Heavy Load : I V =18V OUT 5V Input Vol. (2.5V/div) 0V 20V Output Vol. (5V/div) 0V S-8331A30 (Heavy Load → =18V OUT 5V Input Vol. (2.5V/div) 0V 20V Output Vol. (5V/div) 0V S-8330A30 (Heavy Load : I V =5V,V =18V IN OUT 5V Power off ...
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... OUT IN OUT Load Current Output Vol. (50mV/div) S-8330A30 ( VIN:3.5V → 2.4V) I =1mA,V =18V OUT OUT Input Vol. (0.5V/div) Output Vol. (50mV/div) :3.5V → 2.4V) S-8331A30 ( V I =1mA,V =18V IN OUT OUT Input Vol. (0.5V/div) Output Vol. (50mV/div) Seiko Instruments Inc. www.DataSheet4U.com S-8330/8331 Series V =5V,V =18V IN ...
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... S-8331A20 (V V =5V, I =1mA OUT OUT IN 5V STRB Pin Vol. 0V 14V Output Vol. (2V/div) 8V :24V → 18V) S-8331A30 (V V =5V, I =1mA OUT OUT IN 5V STRB Pin Vol. 0V 24V Output Vol. (2V/div) 18V Seiko Instruments Inc. www.DataSheet4U.com Rev.5.1 _00 ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL SWITCHING REGULATOR Rev.5.1 _00 Reference Data The reference data is used to properly determine the best external parts. Tables 1 and 2 list characteristic data of parts recommended to respond to the wide variety of applications. No. Product V OUT (1) S-8330A20 8 V (2) S-8330A30 18 V ↑ ...
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... Output Current — Output Voltage Characteristics (Output Current Increase) 18.4 18.2 Output Vol. V (V) OUT 18.0 VIN=2V 17.8 VIN=5V VIN=9V 17.6 0 Output Current I (3) S-8330A30 (CD54:47 μ H) Output Current — Output Voltage Characteristics (Output Current Increase) 30.4 30.2 Output Vol. V (V) OUT 30.0 VIN=2V 29.8 VIN=5V VIN=9V 29.6 0 Output Current I (4) S-8330A20 (LQH4N:47 μ H) Output Current — ...
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... Output Vol. V (V) OUT 30.0 VIN=2V 29.8 VIN=5V VIN=9V 29.6 0.01 0.1 1 Output Current I (7) S-8330A30 (LQH4N:22 μ H) Output Current — Output Voltage Characteristics (Output Current Increase) 18.4 18.2 Output Vol. V (V) OUT 18.0 VIN=2V 17.8 VIN=5V VIN=9V 17.6 0.01 0.1 1 Output Current I S-8330A30 (LQH4N:47 μ H) Output Current — Efficiency Characteristics (Output Current Increase) ...
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... Output Current — Output Voltage Characteristics (Output Current Increase) 18.4 18.2 Output Vol. V (V) OUT 18.0 VIN=2V 17.8 VIN=5V VIN=9V 17.6 0.01 0.1 1 Output Current I (9) S-8330B30 (LQH4N:100 μ H) Output Current — Output Voltage Characteristics (Output Current Increase) 18.4 18.2 Output Vol. V (V) OUT 18.0 VIN=2V 17.8 VIN=5V VIN=9V 17.6 0.01 0.1 1 Output Current I (10) S-8330A20 (CD54:47 μ H) Output Current — ...
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... STEP-UP, FOR LCD BIAS SUPPLY, 1-CHANNEL SWITCHING REGULATOR Rev.5.1 _00 (12) S-8330A30 (CD54:47 μ H) Output Current — Ripple Voltage Characteristics (Output Current Increase) 200 VIN=2V VIN=5V 150 VIN=9V Ripple Voltage Vr (mV) 100 50 0 0.01 0.1 1 Output Current I (13) S-8330B30 (LHQ4N:100 μ H) Output Current — Ripple Voltage Characteristics (Output Current Increase) ...
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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 ...