Datasheet LTC1541, LTC1542 (Analog Devices) - 10

LTC1541/LTC1542
U U W U APPLICATIO S I FOR ATIO
1000 8 LTC1541 VCC ) 100 7 COMPOUT Ω 5V TO 8V 6 REF ×1 10 R1 430Ω RESISTOR VALUE (k 1 – COMP 5 COMPIN+ C1 + 0.1 1µF 0.001 0.01 0.1 1 10 CAPACITOR VALUE (µF) VSS 1541/42 F02 4
Figure 2. Damping Resistance vs Bypass Capacitor Value
1541/42 F03a
Figure 3a. Reference Transient Response Test Circuit
8V V + AMPIN+ 5V + AMPOUT OP AMP VREF 2mV/DIV – R2 OUT 2pF TO 10pF R1 2ms/DIV LTC1541 • F03b 1541/42 F04
Figure 3b. Reference and Comparator Output Transient Response Figure 4. Compensation for Feedback Node Capacitance U TYPICAL APPLICATIO S Shunt Battery Charger with Low-Battery Load Disconnect
Si9405 2A FUSE 1M 6.8V 7.5Ω 3.65M ZENER 10W 8M 1A 1N754 DALE 1M SOLAR TIP121 HLM-10 8 3 ARRAY + 5 + 12V LOAD 1/2 1 1/2 5AHR 7 LTC1541 VN2222 LTC1541 GEL CELL 2 6 – – 4 340k 1M VREF = 1.2V (INTERNAL) 1541/42 TA06 15412fd 10