LM3622M-8.4 National Semiconductor Corporation, LM3622M-8.4 Datasheet
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LM3622M-8.4
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LM3622M-8.4 Summary of contents
Page 1
... The LM3622 can sink 15mA minimum at the EXT pin to drive the base of an external PNP pass transistor. It also has Typical Application © 2004 National Semiconductor Corporation low-voltage battery threshold circuitry that removes this drive when the cell voltage drops below a preset limit. The LV pin programs this threshold voltage to either 2 ...
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Connection Diagram Refer to the Ordering Information Table in this Datasheet for Specific Part Number Pin Description Pin No. Name I Input SEL 2 LV Input ENB 3 LV Output 4 GND Ground 5 CS Input 6 CEL ...
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... LM3622M-8.2 100mV LM3622MX-8.2 ± 60mV LM3622AM-8.4 ± 60mV LM3622AMX-8.4 100mV LM3622M-8.4 100mV LM3622MX-8.4 3 Supplied As 95 unit increments in rail 2500 unit increments in tape and reel 95 unit increments in rail 2500 unit increments in tape and reel 95 unit increments in rail 2500 unit increments in tape and reel ...
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Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ( EXT (Note 2) LV SEL LV ENB ESD Susceptibility (Note 3) Storage Temperature ...
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Electrical Characteristics Note 85˚C, 1000 hours. Activation energy of 0.78eV used. J Typical Performance Characteristics Unless otherwise specified 25˚C. A Output Voltage Regulation 10097405 Output Drive Current 10097406 (Continued) ...
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Functional Description The simplified LM3622 block diagram in Figure 1 gives a general idea of the circuit operation. The controller integrates the reference, feedback and drive functions on-chip to con- trol a linear, lithium-ion battery charger in constant voltage and ...
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Typical Application FIGURE 2. Low Dropout, Constant Current/Constant Voltage Li-ion Battery Charger The low dropout linear charger shown in Figure 2 provides constant current and constant voltage charging of 1-cell lithium-ion battery packs. J1 and J2 are used for selecting ...
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Timing Diagram FIGURE 3. Typical Charge Cycle with Low-Voltage Detection Enabled. www.national.com 10097412 8 ...
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Physical Dimensions inches (millimeters) unless otherwise noted For Ordering, Refer to Ordering Information Table National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time ...