s-1702ecc01-i6t1g Seiko Instruments Inc., s-1702ecc01-i6t1g Datasheet
s-1702ecc01-i6t1g
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s-1702ecc01-i6t1g Summary of contents
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... The S-1702 Series includes a voltage regulator with high-accuracy output voltage of ±1.0% allowing to use a ceramic capacitor of 1.0 µF or more, and a voltage detector that monitors the output/input voltage of the regulator. It also includes an overcurrent protector that prevents the output current from exceeding the current capacitance of the output transistor and an output forcible discharge circuit for the regulator operation off ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION S-1702 Series Block Diagrams 1. S-1702 Series A type to H type ON / OFF ON/OFF circuit RESX Reset circuit VIN Reference voltage circuit 2. S-1702 Series J type and K type (external input detection type) ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION Rev.1.1 _00 3. S-1702 Series L type to N type, P type (external delay type OFF Overcurrent ON/OFF circuit CD Reset circuit VIN Reference voltage circuit protector Reference voltage circuit Logic ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION S-1702 Series Product Name Structure 1. Product name S-1702 I6T1 G Refer to the tape specifications at the end of this book. *1. *2. Refer to Table 4 of “2. Function list according to product type”. ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION Rev.1.1 _00 2. Function list according to product type Option ON / OFF Pin Application Code OFF OFF OFF OFF OFF OFF OFF ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION S-1702 Series Table 3 Input Types of RESX and ON / OFF Pins Option RESX Pin Code A No pull-up/pull-down resistor B No pull-up/pull-down resistor C No pull-up/pull-down resistor D Pull-up ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION Rev.1.1 _00 Pin Configuration SNT-6A Top view Figure 4 Table 5 Pin No. Symbol 1 VIN Input voltage pin OFF Power-off pin External reset pin RESX ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION S-1702 Series Absolute Maximum Ratings Item Input voltage Regulator output voltage Detector output Nch open drain output voltage CMOS output Power dissipation Operating ambient temperature Storage temperature *1 ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION Rev.1.1 _00 Electrical Characteristics 1. Common to series (S-1702Axx to Hxx, Jxx to Nxx, Pxx) Entire circuit Item Symbol Current consumption during operation Regulator block Item Symbol *2 Output voltage ...
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... Detection voltage temperature coefficient *8. The output current can be at least this value. Due to restrictions on the package power dissipation, this value may not be satisfied. Attention should be paid to the power dissipation of the package when the output current is large. This specification is guaranteed by design. *9. Since products are not screened at high and low temperatures, the specification for this temperature range is guaranteed by design, not tested in production ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION Rev.1.1 _00 2. Discharge shunt circuit (discharge shunt function) (S-1702Axx, Bxx, Cxx, Exx, Fxx, Gxx, Jxx, Lxx, Nxx) Item Symbol “L” output, Nch on resistor R LOW 3. Detector output circuit (VDOUT pin) ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION S-1702 Series 6. Response time Internal delay type (S-1702Axx, Bxx, Cxx, Dxx, Exx, Fxx, Gxx, Hxx, Jxx, Kxx) (Ta = 25°C unless otherwise specified) Item Symbol Response time ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION Rev.1.1 _00 Test Circuits 1. VIN OFF RESX VDOUT VSS Set to power on The portion enclosed by dotted lines is not required for CMOS output products. Figure 6 3. VIN ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION S-1702 Series Standard Circuits 1. S-1702Axx, Bxx, Cxx, Dxx, Exx, Fxx, Gxx, Hxx Input *1. C *2. A ceramic capacitor of 1.0 µF or more can be used for C * not required for a CMOS output product. ...
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... Selection of VIN Input and VOUT Output Capacitors (C The S-1702 Series requires an output capacitor (C ceramic capacitor with a capacitance of 1.0 µF or more provides a stable operation in all temperature ranges. When using an OS capacitor, tantalum capacitor, or aluminum electrolytic capacitor, a capacitor with a capacitance of 1.0 µF or more and an ESR of 10 Ω or less is required. ...
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... Line regulation ∆ V Indicates the dependency of the output voltage on the input voltage. That is, the values show how much the output voltage changes due to a change in the input voltage with the output current remaining unchanged Load regulation (∆V OUT2 Indicates the dependency of the output voltage on the output current ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION Rev.1.1 _00 1. 7 Temperature coefficient of the output voltage The shaded area in Figure 18 is the range where V temperature coefficient of the output voltage is ±100 ppm/°C. (Refer Table 7 for how to calculate the temperature change [mV/°C] of the output voltage.) ...
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... Range of detection voltage Figure 19 Detection Voltage (− voltage when the detector output voltage (V DET ) value due to variation is called the range of release voltage DET = 3.0 V and hysteresis width of 5%, the release voltage is a value in the range of DET DET V OUT Range of release voltage V ...
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... DET The internal delay type products (S-1702Axx, Bxx, Cxx, Dxx, Exx, Fxx, Gxx, Hxx, Jxx, Kxx) have delay time which is internally fixed. In external delay type products (S-1702Lxx, Mxx, Nxx, Pxx), the delay time (t capacitance value of the capacitor (C ...
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... Figure 22 Example of Bad Implementation of Detection Voltage Changer 2. 7 Temperature characteristics of detection voltage The shaded area in Figure 23 is the range where −V the temperature coefficient of the detection voltage is ±100 ppm/°C. (Refer Table 7 for how to calculate the temperature change [mV/°C] of the detection voltage.) −V Figure 23 Example of Detection Voltage Temperature Characteristics (When − ...
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... Control of S-1702 Series by using ON / OFF and RESX pins 1. 1 Starting and stopping regulator block The regulator block can be started and stopped according to the combination of the ON / OFF and RESX pins. The regulator block switches off the output transistor between the VIN and VOUT pins and reduces current consumption significantly ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION S-1702 Series 1. 4 Operation of each function according OFF and RESX pins The following shows the operation of each function according to the combination of the ON / OFF and RESX pin. S-1702Axx, Exx ON / OFF Pin “ ...
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... Equivalent circuits OFF and RESX pins The ON / OFF and RESX pins are internally fixed to any one of three states; pulled-up (via a pull-up resistor), pulled-down (via a pull-down resistor), or neither pulled-up nor pulled-down (no down pull-up / pull-down resistor). For details, refer to “Table 3 Input Types of RESX and ON / OFF Pins”. The equivalent circuits are shown below ...
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... Parasitic diode 2. 2 Output circuit The output circuit of the regulator block consists of an output transistor and a discharge shunt circuit. The discharge shunt function is enabled or disabled for the VOUT pin. Refer to “Table 1 Product Types” for details. The equivalent circuits are shown below. V ...
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... VIN pin Discharge shunt function The discharge shunt function is enabled in the S-1702Axx, Bxx, Cxx, Exx, Fxx, Gxx, Jxx, Lxx, and Nxx. When the regulator block is stopped, the output transistor is turned off and the discharge shunt circuit is turned on according to the combination of the ON / OFF and the RESX pins. ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION S-1702 Series 3. Detector block 3. 1 Basic operation Figure 28 shows a block diagram of the detector block. V SENSE V VIN Constant current source CD VSS (1) When the SENSE voltage (V ...
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... To prevent this, set the value of the capacitor so that the value of undershoot is the minimum, or set the voltage range in which the difference of the output voltage and the detection voltage is undershoot or more ...
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... Figure 32 Block Diagram (SENSE Voltage (V Caution Use the SENSE pin as an input pin when detecting the external power supply voltage. If applying an input voltage (V occurs in the release voltage of the detector. Apply a voltage to the SENSE pin after applying the input voltage ( detection types (S-1702Exx, Fxx, Gxx, Hxx, Nxx, Pxx) ...
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... External delay types (S-1702Lxx, Mxx, Nxx, Pxx) In the external delay types, the delay time of the detection signal can be set by connecting a capacitor (C between the CD and VSS pins. The delay time ( determined according to the built-in constant current, approx. 100 nA (typ.), and the time ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION S-1702 Series 3. 3 Output Circuit Either Nch open drain output, CMOS output (V For details, refer to “Table 2 Output Types of VDOUT Pin” . The equivalent circuits are shown below. VDOUT V DOUT ...
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... Relation of temperature coefficients of detector and regulator blocks The S-1702 Series has a detector and a regulator in it, and each reference voltage circuit has the same structure so that both temperature coefficients of detector detection voltage and regulator output interlock Positive temperature coefficient of regulator output If the temperature coefficient of regulator output is positive that of detector detection voltage ( Figure 35 ). − ...
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... VIN and VSS pins (C possible. • Note that the output voltage may increase when a series regulator is used at low load current (1 less). • Generally, a series regulator may cause oscillation depending on the selection of external parts. The following conditions are recommended for this IC. However, be sure to perform sufficient evaluation under the actual usage conditions for selection, including evaluation of temperature characteristics ...
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... 85° 25° −40° *1. Excluding current flowing in pull-up and pull-down resistors connected to the ON / OFF or RESX pins *1 vs. Input voltage (Ta = 25° 1.5 V OUT [ 5.5 V OUT [V] IN Seiko Instruments Inc ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION S-1702 Series 2. Regulator block (1) Output voltage vs. Output current (when load current increases) (Ta = 25° ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION Rev.1.1 _00 (3) Dropout voltage vs. Output current 0.5 0.4 0.3 0.2 0 OUT 0.25 0.20 0.15 0.10 0. OUT (4) Output voltage vs. Ambient temperature 1.50 1.45 1.40 1.35 1.30 1.25 1.20 1.15 1.10 −40 − [°C] 5.70 5.65 5.60 5.55 5.50 5.45 5.40 5.35 5.30 −40 − [° 1.5 V OUT Ta = 85° ...
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... Ta = −40° 85° 25° −40° *1. Excluding current flowing in pull-up and pull-down resistors connected to the ON / OFF or RESX pins (6) Ripple rejection ratio (Ta = 25° 1 OUT IN 100 OUT OUT ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION Rev.1.1 _00 3. Detector block (1) Detection voltage vs. Ambient temperature 1.50 1.45 1.40 +V DET 1.35 −V DET 1.30 1.25 1.20 1.15 1.10 −40 − [°C] 5.5 5.4 +V DET 5.3 5.2 −V DET 5.1 5.0 −40 − [°C] (2) Hysteresis width vs. Ambient temperature ...
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... Current consumption during operation at detector block 3.5 3.0 2.5 2.0 1.5 1.0 0 3.5 3.0 2.5 2.0 1.5 1.0 0 *1. Excluding current flowing in pull-up and pull-down resistors connected to the ON / OFF or RESX pins (4) Detector output voltage vs. Nch transistor characteristics ( (6) Detector output voltage vs. Input voltage ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION Rev.1.1 _00 Reference Data 1. Input transient response characteristics (Ta = 25° mA 5.0 µ OUT = 2.5 V ↔ OUT IN 1.60 1.58 1. 1.54 1.52 V OUT 1.50 1.48 1.46 1.44 −100 − 100 150 t [µ ...
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... ULTRA-LOW CURRENT CONSUMPTION 150 mA VOLTAGE REGULATOR WITH BUILT-IN HIGH-ACCURACY VOLTAGE DETECTOR AND RESET INPUT FUNCTION S-1702 Series 3. ON/OFF pin transient response characteristics (Ta = 25°C) = 1.0 µ 2 → OUT ON / OFF 5.0 4.0 3 2.0 1.0 V OUT 0 −1.0 −100 0 100 200 t [µs] = 1.0 µ ...
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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 ...