AIC1783 AIC [Analog Intergrations Corporation], AIC1783 Datasheet
AIC1783
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AIC1783 Summary of contents
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... The safety timer period is adjustable for flexible usage that AIC1783 could be applied in the wide range of battery capacity. Test mode is provided for charger manufactures to dramatically reduce production test time. ...
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... ORDERING INFORMATION AIC1783C X PACKAGE TYPE N: PLASTIC DIP S: SMALL OUTLINE n ABSOLUTE MAXIMUM RATINGS Supply Voltage ............................................… … … … ........................................ 5.5V DC Voltage Applied on any pin ......................… … … … … ...................................... 5.5V Sink current of ICON pin, LED1 and LED2 pin .......................… … … .................. 20mA Operating Temperature Range Storage Temperature Range .............................................… ...
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... TEST CONDITIONS SYMBOL V I Battery Low During Initial Timer After Initial Timer V Battery High LED, ICON Pins ON OFF MODE pin VBT pin R TIMER VBT=2V =5V, unless otherwise specified.) CC MIN. TYP. MAX. 4.5 5.0 5.5 CC 1.1 CC 0.11 0.16 0.21 0.63 0.69 0.75 BT 2.6 2.7 2. 300 1 2 100 1000 -0.15 -0.25 -0.35 AIC1783 UNIT ...
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... Test Circuit) CC Supply Current vs Supply Voltage 1.21 1.18 1.12 1.06 1.00 4.4 4.6 4.8 V (V) CC LED Flashing Frequency vs Supply Voltage 4.8 4.6 4.4 4.2 4.0 3.8 4.4 4.6 4.8 5.0 V (V) CC Safety Timer vs Temperature 82.0 81.0 80.0 79 Temperature( C) 5.0 5.2 5.4 5.2 5 (Ta= Safety Timer vs Supply Volatge 81.0 80.5 80.0 79.5 79.0 4.4 4.6 4.8 5.0 V (V) CC Supply Current vs Temperature 1.26 1.14 1.02 0 Temperature ( C) LED Flashing Frequency vs Temperature 5.0 4.6 4.2 3.8 3 Temperature( C) AIC1783 =100K , TIMER 5.2 5 ...
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... Limit vs Temperature (During Initial Timer 0.163 0.162 0.161 0.160 0.159 0.158 Temperature ( C) 0.700 0.695 0.690 0.685 AIC1783 (Continued) V Limits vs Temperature BT(LOW) ( After Initial Timer Temperature ( C) Output Impedance vs Temperature (LED,ICON pins Temperature ( ...
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... PIN 1: REF- Reference voltage input, acceptable voltage range : (V -1.4V) ~ (0.5V CC PIN 2: TIMER- Determining the period of safety timer with an external resistor connected to GND. PIN 3: MODE- Determining the mode of operation for the AIC1783. PIN 4: GND- Power ground. TIMER MODE GND VCC Bandgap Reference & Oscillator ...
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... V Peak voltage timer ( Cutoff The AIC1783 makes a voltage sampling at VBT pin every 4 seconds when safety timer period is set equal to 80 minutes negative delta voltage of 0.25% compared to its peak value is detected at VBT pin, the fast charge cycle is terminated Cutoff ...
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... The functions and charging states control mentioned above are illustrated in the function flow chart of AIC1783 (Fig. 2) DESIGN GUIDE Battery Voltage Measurement The AIC1783 measures the battery voltage through VBT pin, which is connected to battery positive terminal through a resistor-divider net work, as shown in Fig ...
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... Detected LED Display Fast Charge No ICON OFF If -0.25% Δ Detected No If Safety Timer Period No has Finished Fig. 2 Function Flow Chart of AIC1783 LED Displays Abnormal, No ICON ON, Safety Timer Reset No Yes LED Display Battery Fulll, Battery Replacement Yes Fast Charge Finished, Trickle Charge ...
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... Selecting Mode of Operation The AIC1783 provides three modes of operation: normal, test, and AC mode determined by the setting of MODE pin. The AIC1783 will operate normally when the MODE pin is left floating (a 0.1 F capacitor is recommended to be tied to MODE pin if the charge circuit works in a noisy environment). ...
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... PHYSICAL DIMENSIONS l 8 LEAD PLASTIC SO (unit: mm LEAD PLASTIC DIP (unit: mm SYMBOL MIN A 1.35 A1 0.10 B 0.33 C 0.19 D 4.80 E 3.80 e 1.27(TYP) H 5.80 L 0.40 SYMBOL MIN MAX A1 0.381 A2 2.92 b 0.35 C 0.20 D 9.01 10.16 E 7.62 E1 6.09 e 2.54 (TYP) eB — 10.92 L 2.92 AIC1783 MAX 1.75 0.25 0.51 0.25 5.00 4.00 6.20 1.27 — 4.96 0.56 0.36 8.26 7.12 3.81 11 ...