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SM6780AS Fiches technique(PDF) 10 Page - Nippon Precision Circuits Inc |
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SM6780AS Fiches technique(HTML) 10 Page - Nippon Precision Circuits Inc |
10 / 11 page SM6780AS NIPPON PRECISION CIRCUITS—10 Charging Operating Status TYPICAL APPLICATION CIRCUIT Note that the above circuit is an example circuit to demonstrate the connections for device functions. Battery charger operation is not guaranteed. Charging status Conditions Charging mode CHGN output1 LEDN output Internal timer INH Battery check OK Quick charge LOW Yes Quick charge High impedance LOW (ON) Count Quick charge hold LOW No Pulse trickle 13.68Hz, 3.91% duty 1Hz (pulsing) Count Quick charge inhibit HIGH – Pulse trickle 13.68Hz, 3.91% duty Same condition as when INH went HIGH Hold Supplemental charge LOW OK Supplemental 218Hz, 6.25% duty High impedance (OFF) Count Supplemental charge inhibit HIGH OK Pulse trickle 13.68Hz, 3.91% duty High impedance (OFF) Hold Pulse trickle – – Pulse trickle 13.68Hz, 3.91% duty High impedance (OFF) – Standby – – – High impedance High impedance (OFF) Reset 1. Frequency and duty are typical values. TEMP BATT CHGN VSS LEDN INH VDD TIME VDD 5V 6 2 1 4 8 7 5 3 R6 33k Ω R7 100k Ω Q3 2SC945 SW2 IN VSS OUT 78L05 5V VBEQ2 Q2 2SD525 R2 4/5W ICHG Q1 2SC945 R1 5.1k Ω External current source R8 100k Ω R9 200k Ω R10 200k Ω R13 14k Ω R12 12k Ω SM6780AS R5 1.8k Ω R3 100k Ω R4 100k Ω SW1 VBB 12V R11 640 Ω ICHG = 5 − VBEQ2 R2 = 5 − 0.65 4 = N − 1 R9 R10 N= Number of cells NTC R:10k Ω (at 25 C) B:3435K |
Numéro de pièce similaire - SM6780AS |
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Description similaire - SM6780AS |
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