AIC1804 AIC [Analog Intergrations Corporation], AIC1804 Datasheet
AIC1804
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AIC1804 Summary of contents
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... GND UD4 AIC1804 www.analog.com.tw Protection IC DESCRIPTION The AIC1804 is designed to protect the lithium- ion battery from damage or degrading the lifetime due to overcharging, overdischarging overcurrent for three- or four-cell lithium-ion battery powered systems such as notebook PCs. It can also provide the cell-balancing “bleeding” ...
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... ORDERING INFORMATION AIC1804 XXX PACKAGE TYPE S: SMALL OUTLINE TEMPERATURE RANGE C=0 C~70 C OVERCHARGE PROTECTION VOLTAGE A: 4.35V B: 4.30V C: 4.25V D: 4.20V n ABSOLUTE MAXIMUM RATINGS Supply Voltage ................................................… … … … … … ....................................... 18V DC Voltage Applied on other Pins Operating Temperature Range............................… … … … … … ......................... -20 C~70 C Storage Temperature Range .............................… ...
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... 30mV T CELL1 OCP V +30mV OCP CELL2 CELL3 CELL4 3.5V, C =1nF 2.5V 2.3V T CELL1 CELL2 CELL3 CELL4 3.5V, C =1nF 3.5V,0.15V< CELL CC V <0.3V,C =2.2nF CS TI AIC1804 MIN. TYP. MAX. UNIT 0.7 1.8 C1 0.4 1.0 C2 0.2 0.5 C3 2.2 4.0 0.01 0.15 4.32 4.35 4.38 4.27 4.30 4.33 OCP 4.22 4.25 4.28 4.17 4.20 4.23 150 200 250 HYS 2.27 2.40 2.53 ODP 2.85 3.00 3.15 ODR 135 150 ...
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... CELL1 =3.5V CELL2 CELL3 CELL4 V =4.4V, CELL2 =3.5V CELL1 CELL3 CELL4 V =4.4V, CELL3 =3.5V CELL1 CELL2 CELL4 V =4.4V, CELL4 =3.5V CELL1 CELL2 CELL3 AIC1804 MIN. TYP. MAX. UNIT OI2 T 150 300 450 OI3 I 2.2 3.2 4 -0.15V V -0.03V 0.01 0. +0.4 V +0. 6.5 9 ...
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... Overcharge Protection Voltage vs. Temperature 4.30 AIC1804C 4.28 4.26 4.24 4.22 4.20 - Temperature ( C) 13.6 14.4 15.2 16.0 V =3.5V CELL 2.42 2.41 2.40 2.39 2.38 2.37 2. Vcc Pin Power-Down Current vs. Supply Voltage 2.2 Ta=25 C 2.0 1.8 1.6 1.4 1.2 1.0 6.0 6.4 6.8 7.2 7.6 8.0 Supply Voltage (V) Vcc Pin Power-Down Current vs. Temperature 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 -20 - Temperature ( C) Overdischarge Protection Voltage vs. Temperature -20 - Temperature ( C) AIC1804 8.4 8.8 9.2 V =2.3V CELL ...
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... Overdischarge Release Voltage vs. Temperature 3.01 3.00 2.99 2.98 2.97 -20 - Temperature ( 4.08 4.07 4.06 4.05 4.04 4.03 4. AIC1804 (CONTINUED) Overcharge/Overdischarge Delay Time vs. Temperature =1nF -20 - Temperature( C) Overcharge Release Voltage vs. Temperature -20 - Temperature ( ...
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... PIN PIN for four-cell PIN for PIN PIN 8: GND - PIN 9: UD4- discharge PIN10: VC3- mode present during PIN11: UD3 - AIC1804 Wake-Up Control VCC+0.4V Overcurrent Delay Circuit 4 Power-Down 2 Circuit Control Circuit Output pin for control of discharge control M Overdischarge delay time setting pin ...
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... APPLICATION INFORMATIONS THE OPERATION Initialization On initial power-up, such as connecting the battery pack for the first time to the AIC1804, the AIC1804 enters the power-down mode. A charger must be applied to the AIC1804 circuit to enable the pack. Overcharge Protection When the voltage of either of the battery cells ...
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... CS pin voltage is higher than VCC + 0.4V (charge detection threshold voltage V DESIGN GUIDE Cell Number Selection The user must configure the AIC1804 for three or four series cells application. For three-cell cell-balancing application, NSL pin should be connected directly to VCC pin. For four-cell application, ...
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... OC pin and Q1 is turned on, which turns off M2 in turn. Protection at CS Pin the overcurrent R8 is used for protection of IC when charger is connected in reverse. The charge detection external control function after overdischarge is possibly disabled by larger value of R8. Resistance of 1K recommended. AIC1804 is 10 ...
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... VCC UD1 R2 14 VC1 UD2 12 R3 VC2 UD3 10 R4 VC3 0.1 F UD4 AIC1804 CS < BAT1 V BAT4 Hi-Z SI4435 M1 M2 FUSE R5 1M BAT1 R6 1M BAT2 R7 1M BAT3 BATT BAT2 V BAT3 T OD <T OD Hi-Z AIC1804 BATT+ 11 ...
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... Overcurrent Protection ( 0.15V 0. PACKAGE DIMENSIONS l 16 LEAD PLASTIC SO (150 mil) (unit: mm =3.5V) CELL >256ms T OI1 <T T OI2 <256ms Hi AIC1804 <256ms <T OI3 OI1 256ms SYMBOL MIN A 1.35 A1 0.10 B 0.33 C 0.19 D 9.80 E 3.80 e 1.27 (TYP) H 5.80 L 0.40 MAX 1.75 0.25 0.51 0.25 10.00 4.00 6.20 1.27 12 ...