Datasheet LTC4007-1 (Analog Devices) - 8

LTC4007-1
block DiagraM
0.1µF VIN DCIN 23 5.8V INFET Q3 21 CLN 24 CHG ACP 1 R R T RT SHDN 22 TIMER/CONTROLLER OSCILLATOR 2 FAULT 3 TBAD NTC 32.4k THERMISTOR 7 10k 0.47µF NTC – 397mV FLAG 14 C/10 35mV + GND 4 – 11.67µA 3C4C 5 MUX + CHEM 13 BAT 3.01k 12 – RSENSE + 20µF CA1 LOBAT 6 + CSP 3.01k 11 – 921mV 1.19V + Ω gm = 1m EA – 5k CLP Ω 15 – gm = 1.4m 9k RCL 15nF 100mV CL1 Ω CLN gm = 1m 16 + – CA2 ICL 10 + 1.19V DCIN ITH OSCILLATOR 8 WATCHDOG 6K 20µF DETECT tOFF + BUFFERED ITH 0.12µF OV ÷5 1.28V – CLN TGATE S + Q1 17 Q –+ R ICMP – BGATE CHARGE Q2 20 PWM LOGIC PGND 18 – IREV 17mV PROG + 9 L1 RPROG 0.0047µF 26.7k 40071 BD 40071fa 8 For more information www.linear.com/LTC4007-1 Document Outline Description Typical Application Absolute Maximum Ratings Typical Performance Characteristics Pin Functions Block Diagram Operation Typical Application Related Parts