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QUICK START GUIDE FOR DEMONSTRATION CIRCUIT DC708 

LITHIUM-ION LINEAR BATTERY CHARGER WITH THERMAL REGULATION

 

 

 

Содержание DC708

Страница 1: ... charge termination timer This timer can be set for other time periods through a capacitor change For instance you may want to use a much shorter pe riod on the order of 30 seconds when evaluating the board with a battery simulator instead of a real Li Ion battery Charge Current Monitor Output can be used for gas gauging Manual Shutdown Low battery drain current when input supply is re moved No is...

Страница 2: ...supply to 0V and then connect it to the VIN and GND pins of the demo board 4 Set the battery simulator to 0V and then connect it to the BAT and GND pins 5 Connect the digital voltmeters as shown in the setup diagram to measure VIN V current monitor charge voltage VBAT and the charge current IBAT EVALUATION Undervoltage Lockout Feature Increase the input power supply to approximately 3 8V battery s...

Страница 3: ...ut when the charge current drops to ap proximately 10 of the programmed charge current of 1 0A This verifies that the C 10 output is operating correctly NOTE The LED current drops from approximately 10mA when the LED is on to approximately 25µA when the charge current drops to 10 and drops to 0µA after the timer has timed out 3 hours when a 0 1µF timing capacitor is used At C 10 when the CHRG LED ...

Страница 4: ...uses increased power dissipation which raises the LTC4064 junction temperature When the junction temperature reaches approximately 105 C the charge current decreases enough to maintain the junction temperature at 105 C 2 Increase the battery simulator voltage or reduce the input voltage to reduce the charger power dissipation and allow the charge current to return to the pro grammed current of 1A ...

Страница 5: ...QUICK START GUIDE FOR DEMONSTRATION CIRCUIT DC708 LITHIUM ION LINEAR BATTERY CHARGER WITH THERMAL REGULATION 2 ...

Страница 6: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc DC708A ...

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