AIC1782 AIC [Analog Intergrations Corporation], AIC1782 Datasheet
AIC1782
Related parts for AIC1782
AIC1782 Summary of contents
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... Fig. 1 shows an example of charging curve of a battery charged by a fluc- tuating current from a NiMH battery charger which uses the AIC1782 controller IC to achieve optimal charging. The ∆ −∆V detection circuitry ∆ ...
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... R12 0.1 µ F 100 µ ADJ R13 7 SEL3 8 R14 TMR 100K 9 ATS V (5V R16 R15 R17 0.1 µ LEA1 680 LED1 AIC1782 20 DSW SW1 19 ICOB LED4 R20 18 LEB2 680 LED3 R19 17 LEB1 680 16 GND 15 SEL1 14 SEL2 13 MODE 12 ICOA LED2 R18 ...
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... ORDERING INFORMATION AIC1782 XX PACKAGE TYPE N: PLASTIC DIP S: SMALL OUTLINE TEMPERATURE RANGE C= 0°C~70°C ABSOLUTE MAXIMUM RATINGS Supply Voltage .........................................................……………........................... 5.5V DC Voltage Applied on any Pin Sink Current of ICOA Pin, LEA1 and LEA2 Pins ................………...................... 20mA Sink Current of ICOB Pin, LEB1 and LEB2 Pins ................……......................... 20mA Operating Temperature Range Storage Temperature Range ...........................................… ...
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... Temperature High V ATS Temperature Low V BTS Z ON OFF I SEL3 I DSW R =5V, unless otherwise speci- CC MIN. TYP. MAX. 4.5 5 5.5 CC 1.1 0.11 0.16 0.21 0.63 0.69 0.75 1.1 1.2 1.3 2.6 2.7 2.8 1.9 2.0 2.1 1.35 1.45 1.55 3.5 3.6 3.7 140 250 DIS 5.5 16 300 1 2 100 1000 TM R -0.25 AIC1782 UNIT Ω Ω MΩ µA µA KΩ MΩ KΩ ...
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... ABV and BBV (High) Limit vs Temperature (SEL3>3V) 2.74 2.70 2.66 2. Temperature (°C) 81.0 80.5 80.0 79.5 79.0 5.2 5.4 4.4 1.26 1.14 1.02 0. ABV and BBV (High) Limit vs Temperature 2.03 2.02 2.00 1. AIC1782 (Ta=25° ° ° ° C, R2=100KΩ Ω Ω Ω , Safety Timer vs Supply Volatge 4.6 4.8 5.0 5.2 V (V) CC Supply Current vs Temperature Temperature (°C) (SEL3<2V Temperature (°C) 5 ...
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... ABV and BBV (Low) limits vs Temperature 0.710 0.705 0.700 0.695 0.690 ATS and BTS (Low) Limit vs Temperature 1.48 1.46 1.44 1. AIC1782 (Continued) Output Impedance vs Temperature (LEA’s, LEB’s, ICO’s pins Temperature(°C) (SEL3>3V, After Initial Timer Temperature (° Temperature (°C) ...
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... B. DIS is active high when function of discharge is enabled. PIN 4: BTS - The battery cell temperature of pack B is represented as a volt- age input to the AIC1782 at this pin. The acceptable voltage GND VCC TMR Bandgap Oscillator Reference & ...
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... ABV or BBV fail to fall within the predetermined acceptable limits, the corre- sponding battery pack enters a charging- suspending mode. If the voltage of ATS or BTS is outside the 0. 0. tion to AIC1782 is determined by the input volt- age of SEL3 pin. Discharge-Before-Charge AIC1782 sub- CC. window, ac- ...
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... In the course of fast charge, the AIC1782 con- NiCd stantly monitors the battery voltage and tem- perature through ABV (or BBV) and ATS (or BTS) pins ...
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... KHz. After the safety timer period is finished, the fast charge action is terminated. Maximum Voltage and Temperature Cutoff The AIC1782 guards against the maximum limits for battery voltage and temperature during fast charging. If either of these limits is ex- ceeded, fast charge action is terminated. ...
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... detection is disabled, just as thermistor is not existing. Battery Voltage Measurement The AIC1782 measures the battery voltage through ABV and BBV pins, which is connected to battery positive terminal through a resistor- divider network, as shown in Fig. 2. The ac- ceptable limit of divided battery voltage is de- termined by the input voltage of SEL3 pin ...
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... TABLE. 2 Values of Rx and -10 ° ° ° ° (°C) Ry (KΩ) 551.1 300.7 204.8 153.9 122.8 Setting the ADJ Pin Voltage 101.8 The slope of ∆ 86.5 ADJ pin voltage of the AIC1782. 75.0 66.0 The calculation of ADJ pin voltage is shown in 58.7 the following procedure followed by an example. 52.8 47.8 43.6 39.9 (a) First, determine the temperature protection 36.8 limits TH and TL. Then, substitute TH & ...
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... BASE Setting the Period of Safety Timer The AIC1782 provides a method for linearly adjusting the period of safety timer with an ex- ternal resistor connected from TMR pin to GND. The relation between safety timer length and the external resistor (R ...
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... Selecting Mode of Operation The AIC1782 provides three modes of opera- tion: normal, test, and AC mode, determined by the setting of MODE pin according to TABLE 5. The AIC1782 will operate normally when the MODE pin is left floating (a 0.1µF capacitor is recommended to be tied to MODE pin if the charge circuit works in a noisy environment) ...
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... OFF 4HZ test scheme, utilizing TEST mode function. Out- put waveforms of LEA1, LEA2, LEB1, LEB2, ON OFF ICOA and ICOB of a properly functioning AIC1782 are also shown in the figure. For de- tailed information please consult with AIC staffs directly. AIC1782 Power Wait Fast ...
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... Floating TIME (A) 0.1 0.14 0.12 0.74 0.26 0.12 0.32 (SEC.) STAGE 0.14 0.26 1 1.26 1.38 TIME (B) 0.14 0.12 0.74 0.26 0.1 (SEC.) STAGE 6.01 6.11 6.25 6.37 7.21 7.47 Fig. 5 Timing Diagram of AIC1782 in Test Mode -∆V DISALBE TEST 1.12V 2V 1.997V 1.9V 1.993V (-0.35 OFF ON 3.2KHz ON OFF Floating GND 0.32 0.12 0.32 0. 1.17 2.02 2.14 2.46 3.43 Delay 0.3 14 7.77 ∆T/∆t TEST SAFETY TIMER TEST 2V 2mV Step/100mS 4V 2V 1.96V 1 ...
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... PHYSICAL DIMENSIONS 20 LEAD PLASTIC DIP (unit: mm LEAD PLASTIC SO (300 mil) (unit: mm SYMBOL AIC1782 SYMBOL MIN MAX A1 0.381 A2 2.92 b 0.35 C 0.20 D 24.89 26.93 E 7.62 E1 6.09 e 2.54(TYP) eB — 10.92 L 2.92 MIN MAX 2.35 2.65 0.10 0.30 0.33 0.51 0.23 0.32 12.60 13.00 7.40 7.60 1.27(TYP) 10.00 10.65 0.40 1.27 — 4.96 0.56 0.36 8.26 7.12 3.81 22 ...