Electronic Components Datasheet Search |
|
LTC4069-4.4 Datasheet(PDF) 7 Page - Linear Technology |
|
LTC4069-4.4 Datasheet(HTML) 7 Page - Linear Technology |
7 / 16 page LTC4069-4.4 7 406944fa SIMPLIFIED BLOCK DIAGRAM –+ –+ 2 + MP M2 1 M1 1000 VCC VCC R1 R2 ENABLE R3 R4 R5 2.9V CHRG 6 PROG 1 GND 4069 F01 RPROG BAT 1V PROG C/10 C1 – + TA TDIE 115°C 0.1V 1.2V SUSPEND D3 TOO HOT TOO COLD NTC_EN 0.1V D2 3.6V D1 1.2V REF CA MA LOBAT 5 R7 NTC R8 R9 R10 VCC VCC – + UVLO 3 4 BAT LOGIC COUNTER OSCILLATOR CHARGE CONTROL – + C3 – + C2 C5 VA 4V – + SHUTDOWN SUSPEND OR AND RNOM RNTC C4 OPERATION Figure 1. LTC4069-4.4 Block Diagram The LTC4069-4.4 is a linear battery charger designed primarily for charging single-cell lithium-ion batteries. Featuring an internal P-channel power MOSFET, the charger uses a constant-current/constant-voltage charge algorithm with programmable current. Charge current can be programmed up to 750mA with a final float voltage accuracy of ±0.6%. The CHRG open-drain status output indicates if C/10 has been reached. No blocking diode or external sense resistor is required; thus, the basic charger circuit requires only two external components. An internal termination timer and trickle charge low- battery conditioning adhere to battery manufacturer safety guidelines. Furthermore, the LTC4069-4.4 is capable of operating from a USB power source. An internal thermal limit reduces the programmed charge current if the die temperature attempts to rise above a preset value of approximately 115°C. This feature protects the LTC4069-4.4 from excessive temperature and allows the user to push the limits of the power handling capability of a given circuit board without risk of damaging the LTC4069-4.4 or external components. Another benefit of the LTC4069-4.4 thermal limit is that charge current can be set according to typical, not worst-case, ambient |
Similar Part No. - LTC4069-4.4 |
|
Similar Description - LTC4069-4.4 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |