S1F76980 Epson Electronics America, Inc., S1F76980 Datasheet
S1F76980
Related parts for S1F76980
S1F76980 Summary of contents
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... Power Supply IC S1F76980 Technical Manual SEIKO EPSON CORPORATION Rev.1.0 ...
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NOTICE No part of this material may be reproduced or duplicated in any form or by any means without the written permission of Seiko Epson. Seiko Epson reserves the right to make changes to this material without notice. Seiko Epson ...
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Configuration of product number DEVICES S1 F 76980 F 0C00 00 Packing specifications Specifications Shape (F:QFN) Model number Model name (F : Power Supply) Product classification (S1:Semiconductors) ...
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... S1F76980F0A000B Recommended Connection (For 1-cell Li-ion, OFF-OFF switching, overvoltage limiter not used) ..................................... 24 10.2 S1F76980F0B/C000B Recommended Connection (For 2-cell dry battery, ON-ON switching, overvoltage limiter used)....................................... 25 11. DIMENSIONAL OUTLINE DRAWING (QFN4-24) ......................................................................... 26 12. CHARACTERISTIC DATA ............................................................................................................. 27 12.1 S1F76980F0C000* Characteristic Data ................................................................................ 27 S1F76980 Technical Manual (Rev.1.0) CONTENTS , )................................................................ 6 CC ...
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... DESCRIPTION The S1F76980 series is a low consumption current power supply input control IC, which monitors the voltage of 3-system input power supply and is capable of continuously switching power supply of the system selected in the priority sequence in the IC. For operations below the operating voltage, the product also guarantees operations in reduced power mode by setting the output level of the control signal to Hi-Z ...
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... SS 2 S1F76980 Power Switching voltage control monitoring circuit circuit ( Power voltage monitoring circuit (V ) BUS Power voltage monitoring circuit (V ) BAT Power-on reset circuit Fig.4.1 Block diagram EPSON S1F76980 Technical Manual (Rev.1.0) OC1 OC2 OU1 OU2 OB1 OB2 V OUT FB CDET UDET BDET ...
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... This circuit controls output of a signal that selects optimum input power supply according to input conditions of three power supplies ( BUS V and V can also be switched during operation, using the external pin BSEL. BUS BAT S1F76980 Technical Manual (Rev.1.0) 5. DESCRIPTION OF BLOCK DIAGRAM , BUS BAT ) used in the IC from three power supplies ( and V ) and in the priority sequence set in the IC ...
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... Pin No ONOFSW BSEL OUT OC1 18 OC2 OU1 21 OU2 22 OB2 23 OB1 24 EPSON TOP VIEW Pin Name FB V BAT PSW CBDLY IQ BDET TM3 CUDLY UDET V BUS CSFT CDET S1F76980 Technical Manual (Rev.1.0) ...
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... No. TM3 S1F76980 Technical Manual (Rev.1.0) Power switching operation select pin. H: ON-ON switching, L: OFF-OFF switching V power supply switch pin H: OFF (normally fixed at LOW) BAT Used to set the priority sequence of V Feedback input pin. If measures against overvoltage are taken after output stage, feed back voltage at an appropriate voltage dividing ratio ...
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... FUNCTIONAL DESCRIPTION 8.1 Operation Description The S1F76980 series is a low consumption current power supply input control IC, which monitors the voltage of 3-system input power supply and is capable of continuously switching power supply of the system selected in the priority sequence in the IC. The voltage limiter function of output voltage is included in the switching control circuit to control the output voltage external resistor ...
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... The release time may be specified by external capacitor only for the V monitoring. The recommended value of the capacitor is approximately 50ms for 6800pF. Release delay setting time TUDLY [ms] = Set coefficient (7353) × C [µF] In case of the recommended C=6800[pF], the release delay time is TUDLY=50[ms]. S1F76980 Technical Manual (Rev.1.0) + CMP V ...
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... For detecting voltage = 2.8V, detecting voltage dead setting time TBDLY [S] = Set coefficient (250) × C [µF] In case of the recommended C=6800[pF], the release delay time is TBDLY=1.7[S CMP V REG - V REF power voltage monitoring circuit BAT EPSON BDET CBDLY Typ. Typ. S1F76980 Technical Manual (Rev.1.0) (Note 4) ...
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... Fig.8.4.1 shows the configuration diagram of power supply selection switches, that are configured outside the IC. The O*1 (OC1, OU1, and OB1) pin performs over voltage limiter control while the O*2 (OC2, OU2, and OB2) pin controls backflow prevention OC1 OC2 S1F76980 Technical Manual (Rev.1.0) , and V ) and in the priority sequence set in the IC. BAT V V BUS BAT ...
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... BAT : V input enabled, elimination of backflow potential between input power supply (V BAT 19mV input disabled BAT Fig.8.4.2 State transition State B prevented OUT ) and V BAT power-on BAT EPSON S1F76980 Technical Manual (Rev.1.0) State C OUT ) and V (Typ. BAT OUT ...
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... CC BAT (V ) and V (Typ. 19 mV) BAT OUT : V input disabled, V input enabled, backflow potential between input power supply (V CC BAT Fig.8.4.3 V S1F76980 Technical Manual (Rev.1.0) State A prevented OUT prevented OUT ⇔ V power supply switching state transition 1 BAT CC EPSON 8. FUNCTIONAL DESCRIPTION State D State E ...
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... CC (OB1:ON, OB2:ON, OU1:OFF, OU2:OFF, OC1:ON, OC2:OFF) State G: V and V input power supplies selected simultaneously (ON-ON), full on state BAT CC (OB1:ON, OB2:ON, OU1:OFF, OU2:OFF, OC1:ON, OC2:ON) 12 State G State F State A State D prevented OUT prevented OUT EPSON S1F76980 Technical Manual (Rev.1.0) State E prevented OUT ...
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... EPSON, however, shall not be liable for any defective conditions or the like due to backflow to input power supply caused by ON-ON switching. (Note 8) Combining the V BAT generates abnormal output waveforms at switching; therefore, this combination should be avoided to output normal waveforms. S1F76980 Technical Manual (Rev.1.0) ⇔ V power switching state transition 2 BAT CC priority (BSEL=LOW) pin with the ON-ON switching (ONOFSW=HIGH) pin EPSON 8 ...
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... Set so that the total resistance of OUT V =V ((RFB1+RFB2)/RFB2) OUT REF Typ OC1 OU1 OC2 OU2 CSFT CSFT V OUT RFB1 FB RFB2 EPSON , feed back and input voltage divided by OUT smoothing capacitor). The setting time OUT V BUS OB1 OB2 V OUT S1F76980 Technical Manual (Rev.1.0) V BAT ...
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... This state is not effective for the IC recommend that the IC be connected to a discharge resistor. The recommended resistance value is between 1 and 2.2 MegΩ lower resistance is required depending on setting conditions, however, determine the appropriate value after careful evaluation. S1F76980 Technical Manual (Rev.1.0) power supply CC OC1 ...
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... BSEL V PSW ONOFSW OC1, OC2, OU1, V OU2, OB1, OB2, CDET, UDET, BDET mA OC1, OU1, OB1 mA OC2, OU2, OB2 mA CDET, UDET, BDET mW - °C - °C - ° set to the highest power level. BAT S1F76980 Technical Manual (Rev.1.0) Remarks - - - (Note ...
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... External MOS FET (Note 12) All the values are based on V (Note 13 recommended to use a tantalum capacitor of ESR = 1 Ω or more. (Note 14) Connect 47 µF capacitors in parallel to increase the capacity. (Note 15 recommended to use ON Semiconductor NTHD2102P. S1F76980 Technical Manual (Rev.1.0) 9. ELECTRICAL CHARACTERISTICS Standard value Symbol Min. ...
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... BAT µ BUS T =-30°C to +85° =VHIZ to -BDET, BAT µ BUS T =-30°C to +85°C (Note 16) a S1F76980 Technical Manual (Rev.1.0) =V =0V BAT =V =0V BAT =V =0V BAT =V =0V BAT =V =5V, BAT =V =5V, BAT =V =0V CC BUS ...
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... V CC (Note 19) The V power is used as the standard value (Note 20) The V power is used as the standard value (Note 21) The V power is used as the standard value S1F76980 Technical Manual (Rev.1.0) 9. ELECTRICAL CHARACTERISTICS Standard value Min. Typ. Max. Set ×0.97 ×1.03 voltage Set × ...
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... UDET=1.5V BUS Nch open drain output, ms (Note 32), (Note 23) Nch open drain output, µs (Note 32), (Note 24) ppm/°C T =-30°C to +85°C, (Note 22) a ppm/°C T =-30°C to +85°C, (Note 22 =3.75V BUS =5V BUS S1F76980 Technical Manual (Rev.1.0) 5V, and 3.75V. ...
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... This is the standard value for the dead time setting capacitor at CBDLY=6800pF and V =2.75V 4.2V. BAT (Note 28) This is the standard value for the dead time setting capacitor at CBDLY=6800pF and V =1.55V 3V. BAT S1F76980 Technical Manual (Rev.1.0) 9. ELECTRICAL CHARACTERISTICS Standard value Min. Typ. Max. Set ×0.97 × ...
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... Unit Conditions V Set by feedback resistor. V (Note 31 =0.5V IN OUT ≤6.5V %/V V +0.5V≤V OUT =0.5V IN OUT mV ≤100mA 1mA≤IV OUT V -V =1.0V, IV =100mA, IN OUT OUT ppm/°C T =-30°C to +85°C, (Note 21) a S1F76980 Technical Manual (Rev.1.0) ...
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... Measurement of transmission delay time (Nch open drain output BUS BAT -C/U/BDET BUS BAT V SS VSO(5V) C/U/BDET 1 S1F76980 Technical Manual (Rev.1.0) 9. ELECTRICAL CHARACTERISTICS TPHLC/U/B S1F76980 series BUS BAT C/U/BDET V SS EPSON +C/U/BDET t TPLHC/U/B t VSO 23 ...
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... EXTERNAL CONNECTION DIAGRAMS 10. EXTERNAL CONNECTION DIAGRAMS 10.1 S1F76980F0A000B Recommended Connection (For 1-cell Li-ion, OFF-OFF switching, overvoltage limiter not used) (21 (1) ONOFSW V DD (4) BSEL (6) V OUT OC1 (11) ( BUS (6) CUDLY=6800pF, (7) CV (8)(9)(10) MOS FET=NTHD2102P (Manufactured by ON Semiconductor.) (11) ROC1= (12) ROC2= (13) ROU1= (14) ROU2= (15) ROB1= (16) ROB2=2.2MegΩ ...
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... S1F76980F0B/C000B Recommended Connection (For 2-cell dry battery, ON-ON switching, overvoltage limiter used) (23 (1) ONOFSW V DD (4) BSEL (7) V OUT OC1 (11) ( BUS (6) CUDLY=6800pF, (7) CV (8)(9)(10) MOS FET=NTHD2102P (Manufactured by ON Semiconductor.) (11) ROC1= (12) ROC2= (13) ROU1= (14) ROU2= (15) ROB1= (16) ROB2=2.2MegΩ (17) RFB1=1.0MegΩ, (18) RFB2=0.47MegΩ (Internal reference = 1.05V, V (19) RCDET= (20) RUDET= (21) RBDET=470kΩ ...
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... DIMENSIONAL OUTLINE DRAWING (QFN4-24) 11. DIMENSIONAL OUTLINE DRAWING (QFN4-24) Top View D Index Bottom View 7 6 Index Reference Symbol EPSON Dimension in Millimeters Min. Nom. Max 0.17 - 0.3 - 0.5 - 0 S1F76980 Technical Manual (Rev.1.0) ...
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... CHARACTERISTIC DATA 12.1 S1F76980F0C000* Characteristic Data - -30 S1F76980 Technical Manual (Rev.1.0) -system consumption current - ° -system consumption current [°C] a EPSON 12. CHARACTERISTIC DATA = = ...
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... CHARACTERISTIC DATA V BUS 40.0 35.0 30.0 25.0 20.0 15.0 -30 28 -system consumption current [°C] a EPSON =5V BUS 70 90 S1F76980 Technical Manual (Rev.1.0) ...
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... V BAT 35.0 30.0 25.0 20.0 15.0 10.0 -30 V BAT 35.0 30.0 25.0 20.0 15.0 10.0 -30 S1F76980 Technical Manual (Rev.1.0) -system consumption current [°C] a -system consumption current [°C] a EPSON 12. CHARACTERISTIC DATA =3.6V BAT 70 90 =2.5V BAT ...
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... CHARACTERISTIC DATA 2.40 2.35 2.30 2.25 2.20 2.15 2.10 -30 2.50 2.45 2.40 2.35 2.30 2.25 2.20 - detecting voltage CC - [° release voltage CC - [°C] a EPSON S1F76980 Technical Manual (Rev.1.0) ...
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... S1F76980 Technical Manual (Rev.1.0) V detecting voltage BUS - [° release voltage BUS - [°C] a EPSON 12. CHARACTERISTIC DATA ...
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... CHARACTERISTIC DATA 1.75 1.70 1.65 1.60 1.55 1.50 1.45 -30 2.10 2.05 2.00 1.95 1.90 1.85 1.80 1.75 - detecting voltage BAT - [° release voltage BAT - [°C] a EPSON S1F76980 Technical Manual (Rev.1.0) ...
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... S1F76980 Technical Manual (Rev.1.0) V output guarantee voltage BAT - [°C] a EPSON 12. CHARACTERISTIC DATA ...
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... AMERICA EPSON ELECTRONICS AMERICA, INC. HEADQUARTERS 150 River Oaks Parkway San Jose, CA 95134, U.S.A. Phone: +1-800-228-3964 FAX: +1-408-922-0238 SALES OFFICES Northeast 301 Edgewater Place, Suite 210 Wakefield, MA 01880, U.S.A. Phone: +1-800-922-7667 FAX: +1-781-246-5443 EUROPE EPSON EUROPE ELECTRONICS GmbH HEADQUARTERS Riesstrasse 15 80992 Munich, GERMANY ...