LTC4075EDD Linear Technology, LTC4075EDD Datasheet
LTC4075EDD
Specifications of LTC4075EDD
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LTC4075EDD Summary of contents
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... USB power. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. *Protected by U.S. patents, including 6522118, 6700364 Complete Charge Cycle (1100mAh Battery) ...
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... C to 125 C ORDER PART NUMBER LTC4075EDD LTC4075XEDD 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. ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER I Trickle Charge Current (Note 6) TRIKL V Trickle Charge Threshold (Note 6) TRIKL V DCIN Undervoltage Lockout Voltage UVDC V USBIN Undervoltage Lockout Voltage UVUSB V V ...
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LTC4075/LTC4075X W U TYPICAL PERFOR A CE CHARACTERISTICS Regulated Output (Float) Voltage vs Charge Current 4. DCIN USBIN 4.24 4.22 4.20 4.18 4. 1.25k IDC IDC IUSB 4.14 ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Charge Current vs Ambient Temperature 1000 ONSET OF THERMAL REGULATION 800 R = 1.25k IDC 600 IDC IUSB 400 200 DCIN USBIN V ...
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LTC4075/LTC4075X W U TYPICAL PERFOR A CE CHARACTERISTICS Undervoltage Lockout Threshold vs Temperature 4.30 4.25 DCIN UVLO 4.20 4.15 4.10 4.05 USBIN UVLO 4.00 3.95 3.90 –50 – TEMPERATURE (°C) Battery Drain Current vs Temperature ...
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CTIO S USBIN (Pin 1): USB Input Supply Pin. Provides power to the battery charger. The maximum supply current is 650mA. This pin should be bypassed with a 1µF capacitor. IUSB (Pin 2): Charge Current ...
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LTC4075/LTC4075X W BLOCK DIAGRA DCIN 1mA MAX 7 USBPWR 10mA MAX 4 PWR 10mA MAX CHRG 5 LOGIC RECHRG TRICKLE TERM 6 ENABLE R ENABLE TERMINATION *TRICKLE CHARGE DISABLED ON THE LTC4075X 8 10 CC/CV REGULATOR + DC – 4.15V ...
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U OPERATIO The LTC4075 is designed to effi ciently manage charging of a single-cell lithium-ion battery from two separate power sources: a wall adapter and USB power bus. Using the constant-current/constant-voltage algorithm, the charger can deliver up to 950mA of ...
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LTC4075/LTC4075X U OPERATIO The termination condition is detected by using an internal fi ltered comparator to monitor the ITERM pin. When the ITERM pin voltage drops below 100mV t (typically 1.5ms), charging is terminated. The TERMINATE charge current is latched ...
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U OPERATIO The power supply status output ( ⎯ P ⎯ W ⎯ has two states: pull- down and high impedance. The pull-down state indicates that power is present at either DCIN or USBIN. This output is strong ...
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LTC4075/LTC4075X U U APPLICATIO S I FOR ATIO Using a Single Charge Current Program Resistor The LTC4075 can program the wall adapter charge current and USB charge current independently using two program resistors, R and R . Figure 2 shows ...
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... USB bus or wall adapter, the cable inductance along with the self resonant and high Q characteristics of ceramic capacitors can cause substantial ringing which could exceed the maximum voltage pin ratings and damage the LTC4075. Refer to Linear Technology Application Note 88, ° entitled “Ceramic Input Capacitors Can Cause Overvoltage 45 C Transients” ...
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LTC4075/LTC4075X U U APPLICATIO S I FOR ATIO makes them especially susceptible to this problem. To bypass the USB pin and the wall adapter input, add a 1Ω resistor in series with a ceramic capacitor to lower the effective Q ...
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... SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights Package 10-Lead Plastic DFN (3mm × ...
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... Standalone Linear Li-Ion Battery Charger with Programmable Termination LTC4410 USB Power Manager and Battery Charger TM LTC4411/LTC4412 Low Loss PowerPath ThinSOT and PowerPath are trademarks of Linear Technology Corporation Linear Technology Corporation 16 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ...