ltc4096 Linear Technology Corporation, ltc4096 Datasheet
ltc4096
Available stocks
Related parts for ltc4096
ltc4096 Summary of contents
Page 1
... The LTC4096 can be put into shutdown mode reducing the DCIN supply current to 20µA, the USBIN supply current to 10µA, and the battery drain current to less than 2µ ...
Page 2
... T EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB ORDER PART NUMBER LTC4096EDD LTC4096XEDD Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. ...
Page 3
... Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LTC4096 is guaranteed to meet the performance specifi cations from 0°C to 85°C. Specifi cations over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls ...
Page 4
... LTC4096/LTC4096X TYPICAL PERFORMANCE CHARACTERISTICS Battery Regulated Output (Float) Voltage vs Charge Current 4. DCIN IDC 4.24 4.22 4.20 4.18 4.16 4.14 4.12 4.10 0 200 400 600 800 1000 1200 CHARGE CURRENT (mA) 4096 G01 Battery Regulated Output (Float) Voltage vs DCIN Voltage 4. 10mA BAT IDC 4.24 4.22 4.20 4.18 4.16 4.14 4.12 4.10 4.25 4.50 4.75 5.00 5.25 V (V) DCIN 4096 G04 Charge Current vs IUSB Pin ...
Page 5
... JA 0 –50 – 4.0 TEMPERATURE (°C) 4096 G14 Charge Current vs Battery Voltage 600 LTC4096X 500 400 300 200 100 USBIN LTC4096 IUSB θ = 40°C 4.5 2.0 2.5 3.0 3.5 V (V) BAT 4096 G17 75 100 4096 G12 100 125 4096 G15 4 ...
Page 6
... LTC4096/LTC4096X TYPICAL PERFORMANCE CHARACTERISTICS DCIN Power FET On-Resistance vs Temperature 550 DCIN I = 200mA BAT 500 450 400 350 300 –50 – TEMPERATURE (°C) 4096 G19 PWR PWR USBIN DCIN 100 125 ...
Page 7
... This output is able to source up to 120mA. ⎯ C ⎯ H ⎯ R ⎯ G (Pin 4): Open-Drain Charge Status Output. When the LTC4096 is charging, the ⎯ C ⎯ H ⎯ R ⎯ G pin is pulled low by an internal N-channel MOSFET. When the charge cycle is completed, ⎯ C ⎯ H ⎯ R ⎯ G becomes high impedance. This output is capable of sinking up to 10mA, making it suitable for driving an LED ...
Page 8
... LTC4096/LTC4096X PIN FUNCTIONS GND (Pin 8): Ground. IDC (Pin 9): Charge Current Program for Wall Adapter Power. The charge current is set by connecting a resistor ground. When charging in constant-current mode, IDC this pin servos to 1V. The voltage on this pin can be used to measure the battery current delivered from the DCIN ...
Page 9
... Power Source Selection The LTC4096 can charge a battery from either the wall adapter input or the USB port input. The LTC4096 automati- cally senses the presence of voltage at each input. If both voltage sources are present, the LTC4096 defaults to the wall adapter source provided suffi ...
Page 10
... The PWR present output is capable of sourcing up to 120mA steady state and includes short circuit protection. *Any external sources that hold the ITERM pin above 100mV will prevent the LTC4096 from terminating a charge cycle. 4096xf ...
Page 11
... DCIN POWER APPLIED SUSP SUSP DRIVEN HIGH DRIVEN HIGH USBIN POWER DCIN POWER REMOVED OR REMOVED DCIN POWER Figure 1. LTC4096 State Diagram of a Charge Cycle LTC4096/LTC4096X TRICKLE CHARGE* MODE BAT < 2.9V 1/10th FULL CURRENT CHRG STATE: PULLDOWN PWR STATE: USBIN BAT > 2.9V CHARGE 2.9V < BAT ...
Page 12
... CHRG USB ( ) R ISET The LTC4096 can also program the wall adapter charge current and USB charge current independently using two program resistors, R and R IDC IUSB charger circuit that sets the wall adapter charge current to 800mA and the USB charge current to 500mA. ...
Page 13
... V ) • BAT BAT Example: An LTC4096 operating from a 5V wall adapter (on the DCIN input) is programmed to supply 800mA full-scale current to a discharged Li-Ion battery with a voltage of 3.3V. Assuming θ is 40°C/W (see Thermal Considerations), JA the ambient temperature at which the LTC4096 will begin ...
Page 14
... As an example, a correctly soldered LTC4096 can deliver over 800mA to a battery from a 5V supply at room temperature. Without a good backside thermal connection, this number would drop to much less than 500mA ...
Page 15
... ALL DIMENSIONS ARE IN MILLIMETERS 4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE 5. EXPOSED PAD SHALL BE SOLDER PLATED 6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE LTC4096/LTC4096X R = 0.115 0.38 ± 0.10 TYP 6 10 ...
Page 16
... LTC4096/LTC4096X RELATED PARTS PART NUMBER DESCRIPTION LTC3455 Dual DC/DC Converter with USB Power Management and Li-Ion Battery Charger LTC4053 USB Compatible Monolithic Li-Ion Battery Charger LTC4054/LTC4054X Standalone Linear Li-Ion Battery Charger with Integrated Pass Transistor in ThinSOT LTC4055 USB Power Controller and Battery Charger ...