S-812C Seiko Instruments Inc, S-812C Datasheet
S-812C
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S-812C Summary of contents
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... Parasitic diode VSS ( case of a product with short-circuit protection The S-812C series is a family of high-voltage positive regulators developed using CMOS technology. maximum operating voltage of 16V makes the S-812C series best in high-voltage applications. Not only current consumption is small but also power-off function is included, the regulator is also suitable in constructing low- power portable devices ...
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... Note: Although the IC contains protection circuit against static electricity, excessive static electricity or voltage which exceeds the limit of the protection circuit should not be applied to. „ Selection Guide Product Name S-812C xx Axx - xxx - T2 S-812CxxB series (Short-circuit protection and power-off fuction) Output Voltage 2.0 V ± 2.0% 3.0 V ± ...
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... Rev.1.0 S-812CxxA series (No short-circuit protection and no power-off function) Output voltage SOT-23-5 2.0 V 2.0% S-812C20AMC-C2A-T2 2.1 V 2.0% S-812C21AMC-C2B-T2 2.2 V 2.0% S-812C22AMC-C2C-T2 2.3 V 2.0% S-812C23AMC-C2D-T2 2.4 V 2.0% S-812C24AMC-C2E-T2 2.5 V 2.0% S-812C25AMC-C2F-T2 2.6 V 2.0% S-812C26AMC-C2G-T2 2.7 V 2.0% S-812C27AMC-C2H-T2 2.8 V 2.0% S-812C28AMC-C2I-T2 2.9 V 2.0% S-812C29AMC-C2J-T2 3.0 V 2.0% S-812C30AMC-C2K-T2 3.1 V 2.0% S-812C31AMC-C2L-T2 3.2 V 2.0% S-812C32AMC-C2M-T2 3.3 V 2.0% S-812C33AMC-C2N-T2 3.4 V 2.0% S-812C34AMC-C2O-T2 3.5 V 2.0% S-812C35AMC-C2P-T2 3.6 V 2.0% S-812C36AMC-C2Q-T2 3.7 V 2.0% S-812C37AMC-C2R-T2 3.8 V 2.0% S-812C38AMC-C2S-T2 3.9 V 2.0% S-812C39AMC-C2T-T2 4.0 V 2.0% S-812C40AMC-C2U-T2 4.1 V 2.0% S-812C41AMC-C2V-T2 4.2 V 2.0% S-812C42AMC-C2W-T2 4.3 V 2.0% S-812C43AMC-C2X-T2 4.4 V 2.0% S-812C44AMC-C2Y-T2 4.5 V 2.0% S-812C45AMC-C2Z-T2 4.6 V 2.0% S-812C46AMC-C3A-T2 4.7 V 2.0% S-812C47AMC-C3B-T2 4.8 V 2.0% S-812C48AMC-C3C-T2 4.9 V 2.0% S-812C49AMC-C3D-T2 5 ...
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... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series „ Pin Configuration For details of package, refer to the attached drawing. SOT-23-5 Top view Figure 2 SOT-89-5 Top view Figure 3 SOT-89-3 Top view Figure 4 TO-92 Bottom view Figure 5 4 Table 3 Pin Assignment Pin No ...
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... Rev.1.0 „ Electrical Characteristics 1. S-812C Series Parameter Symbol Output voltage V 1) Output current 2) Dropout voltage 3) Line regulation 1 Line regulation 2 Load regulation Output voltage temperature coefficient Current consumption Input voltage Applied to products with Power-off Function Current consumption at power- off ON/OFF pin ...
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... L Output capacitors are generally used to stabilize regulation operation and to improve transient response characteristics. But the S-812C series can provide stable operation without output capacitors. Capacitors are used only to improve transient response characteristics. Output capacitors can hence be removed in applications in which transient response can be negligible. When an output capacitor is used, a low ESR (Equivalent Series Resistance) capacitor like ceramic capacitor can also be used ...
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... Output transistor The S-812C Series uses a Pch MOS transistor as the output transistor. The voltage at VOUT must not exceed VIN+0.3V. When the VOUT voltage becomes higher than that of VIN, reverse current flows and may break the regulator since a parasitic diode between VOUT and VIN exists inevitably ...
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... Short-circuit protection Installation of the short-circuit protection which protects the output transistor against short-circuit between VOUT and VSS can be selected in the S-812C series. The short-circuit protection controls output current as shown in the typical characteristics, (1) OUTPUT VOLTAGE versus OUTPUT CURRENT, and suppresses output current at about 40 mA even if VOUT and VSS pins are short-circuited. ...
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... Note that the short-circuit protection incorporated in the S-812C series does not work as a short-circuit protection for the boost circuit. ...
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... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series Capacitor C1 has an effect in minimizing output fluctuation due to power-on, variation and load variation. optimum value in the actual device not also recommended to attach a capacitor between the S-812 power source VIN and VSS pins or between output VOUT and ...
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... Rev.1.0 „ Typical Characteristics (1) Output Voltage vs Output Current (When load current increases) S-812C20B (Ta=25°C) Short- circuit protection 2.5 V =2.5V IN 2.0 7V 1.5 1.0 3V 0.5 0 (mA) OUT S-812C50B (Ta=25°C) Short-circuit protection 6.0 10V 5.0 4.0 V =5.5V 3.0 IN 2.0 6V 1.0 0.0 0 100 I (mA) OUT S-812C20A (Ta=25 ºC) No short-circuit protection 2.5 V =2.3V IN 2.0 1.5 2.5V 1 0.5 0.0 0 100 I (mA) OUT º ...
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... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series (2) Maximum Output Current vs Input Voltage S-812C20B Short-circuit protection 140 120 100 80 60 25° Ta=-40° (V) IN S-812C50B Short-circuit protection 300 Ta=-40°C 250 200 150 100 25° (V) IN S-812C20A ...
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... A 6 6.5 7 (V) S-812C30B 1600 1400 1200 1000 800 600 400 Ta= -40°C 200 Ta= -40° (mA) Seiko Instruments Inc. S-812C Series -20m -10m A -50m 3.5 4 4.5 V (V) IN 85°C 25°C Ta= -40° ...
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... S-812C 30B S-812C 50B (°C) 14 S-812C30B 3.06 3.03 3.00 2.97 2.94 -50 50 100 50 100 (7) Line Regulation 2 vs Ambient Temperature -812C 30B 5 0 -50 50 100 S-812C 20B 50 100 Seiko Instruments Inc 100 Ta (°C) S-812C 20B S-812C 30B S-812C 50B (°C) Rev.1.0 100 ...
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... Pin Input Threshold vs Input Voltage S-812C20B 2.5 25°C 85°C 2.0 1.5 1.0 0.5 85°C 0 (V) IN HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C30B 2.5 2.0 85°C 1.5 1.0 0.5 0 85° Ta=-40°C Ta=-40°C 25° Seiko Instruments Inc. S-812C Series 85°C 25°C Ta= -40° ( ...
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... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series REFERENCE DATA „ Transient Response Characteristics (Typical data: Ta=25 C) INPUT VOLTAGE or LOAD CURRENT OUTPUT VOLTAGE (1) Power-on : S-812C30B (C =10 F; ceramic capacitor ON/OFF=0 5V TIME (100 s/div) Load dependence of overshoot at power- ON/OFF 0.030 S-812C 30B 0 ...
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... Rev.1.0 (2) Power-on by ON/OFF pin : S-812C30A (C V =5V, ON/OFF TIME (200 s/div) Load dependence of overshoot at power- )+2V , ON/OFF 0.8 0.6 S-812C 50B 0.4 0.2 S-812C 30B 0.0 0.001 0.01 0.1 I OUT V dependence of overshoot at power- ON/OFF 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR =10 F; ceramic capacitor) ...
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... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series (3) Line Transient Response : S-812C30B (C 3V 2.9V TIME (100 s/div) Load dependence of overshoot at line transient V , ON/OFF 0.16 0.14 S-812C 50B 0.12 0.10 0.08 0.06 0.04 S-812C 30B 0.02 0. (A) OUT V dependence of overshoot at line transient ON/OFF 0.16 0.14 0.12 0.10 0.08 0.06 0.04 S-812C 30B ...
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... 0.30 0.25 0.20 0.15 0.10 S-812C 30B 0.05 0. Seiko Instruments Inc. S-812C Series ON/OFF S-812C 50B S-812C 30B ,ON/OFF 10m S-812C 50B S-812C 30B - (°C) ...
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... HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR S-812C Series (4) Load Transient Response : S-812C30B (C V =5V 3.1V 3V 2.9V TIME (200 s/div) Load dependence of overshoot at load transient V , ON/OFF 1.2 S-812C 50B 1.0 0.8 0.6 0.4 0.2 0 (A) OUT V dependence of overshoot at load transient 10m 0.16 0.14 S-812C 50B ...
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... 0.25 0.20 0.15 0.10 0.05 0. Seiko Instruments Inc. S-812C Series dependence of undershoot at load transient N/O FF=V (S)+2V S-812C 50B S-812C 30B ON/OFF 10m S-812C 50B S-812C 30B - (°C) 10m ...
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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 ...