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SS6783AG Datasheet(PDF) 10 Page - Silicon Standard Corp. |
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SS6783AG Datasheet(HTML) 10 Page - Silicon Standard Corp. |
10 / 12 page www.SiliconStandard.com 10 of 12 SS6783A(G) 1/11/2005 Rev.2.10 TABLE 2 RTMR (kΩ) OSC. Freq.(kHz) Safety timer (min.) 11 256 10 23 131 20 48 65.8 40 74 43.1 60 100 32.8 80 152 21.6 120 206 16.0 160 314 10.6 250 491 6.89 380 667 5.04 520 Selecting Mode of Operation The SS6783A provides three modes of operation: normal, test, and AC mode determined by the setting of MODE pin. The SS6783A will operate normally when the MODE pin is left floating (a 0.1 µF capacitor is recommended to be tied to MODE pin if the charge circuit works in a noisy environment). When the MODE pin is biased to GND, the function of - ∆V detection is disabled. When the MODE pin is biased to VCC, the SS6 783A enters the test mode. The test mode can be used to significantly reduce production test time. TABLE 3 MODE pin Mode Function VCC Test Safety timer period scaled down to 1/32 Floating Normal Normal operation GND AC - ∆V detection disabled Display the Battery Charging Status The SS6783A provides an open-drain output at the LED pin, to indicate the battery charging status. The outputs of LED pin are shown in the following table: Power ON Fast Charging Charge Completed Fault Conditions LED 1Hz 4Hz Flashing ON OFF Charging Current Control As shown in the typical application circuit, the SS6 783A offers an open-drain output at the ICON pin, to control the charging current flow in fast charge state and switch on to inhibit the charging current flow in fault conditions. When fast charge is completed, the SS6783A enters the trickle charge mode. In trickle charge mode, the ICON pin output switches with 1/128 duty cycle. Power ON Fast Charging Charge Completed Fault Conditions ICON ON OFF 1/128 Duty cycle ON |
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