LTC4416IMS-1

LTC4416/LTC4416-1 36V, Low Loss Dual PowerPath Controllers for Large PFETs FEATURES DESCRIPTIO Designed Specifically to Drive Large and Small Q The LTC 4416/LTC4416-1 control two sets of external G PFETs P-channel MOSFETs to create two near ideal diode functions Very Low Loss Replacement for Power Supply for power switchover circuits. This permits highly efficient ORing Diodes ORing of multiple power sources for extended battery life Wide Operating Voltage Range: 3.6V to 36V and low self heating. When conducting, the voltage drop 40C to 125C Operating Temperature Range across the MOSFET is typically 25mV. For applications with Reverse Battery Protection a wall adapter or other auxiliary power source, the load is Automatic Switching Between DC Sources automatically disconnected from the battery when the aux- Low Quiescent Current: 35A per Channel iliary source is connected. Load Current Sharing TM The LTC4416 integrates two interconnected PowerPath MOSFET Gate Protection Clamp controllers with soft switchover control. The soft-off Precision Input Control Comparators for Setting switchover permits the users to transfer between two dis- Switchover Threshold Points similar voltages without excessive voltage undershoot (or Open-Drain Feedback Points for Customer Specified V ) in the output supply. The LTC4416/LTC4416-1 also DROOP Hysteresis Control contain a fast-on feature that dramatically increases gate Minimal External Components drive current when the forward input voltage exceeds 25mV. Space Saving 10-Lead MSOP Package The LTC4416 fast off feature is engaged when the sense U voltage exceeds the input voltage by 25mV. The LTC4416-1 APPLICATIO S enables the fast off under the same conditions and when the other external P-channel device is selected using the High Current PowerPath Switch enable pins. Industrial and Automotive Applications Uninterruptible Power Supplies The wide operating supply range supports operation from one Logic Controlled Power Switch to eight Li-Ion cells in series. The low quiescent current (35A Battery Backup System per channel) is independent of the load current. The gate driver Emergency Systems with Battery Backups includes an internal voltage clamp for MOSFET protection. , LT, LTc and LTM are registered trademarks of Linear Technology corporation. The LTC4416/LTC4416-1 are available in low prolfi e 10-lead PowerPath is a trademark of Linear Technology corporation. All other trademarks are the property of their respective owners. MSOP packages. LTC4416 vs Schottky Diode TYPICAL APPLICATIO Forward Voltage Drop 8.0 Automatic PowerPath Switchover Under and Overvoltage Shutdown Operation cONSTANT V1 = 12V (FAIL) R V1 = 13.5V (RESTORE) PRIMARY SUPPLY SUP75P03_07 ON V IN V1 221k 75k 3.6 221k V WITH TH1 LTc4416 LTC4416 182k LTC4416-1 HYSTERESIS V WITH TH2 187k 24.9k E1 V1 H1 G1 HYSTERESIS cONSTANT GND GND G1 24.9k 187k 24.3k E1 V1 VOLTAGE V OUT ScHOTTKY TO E2 V V GND GND V S S S DIODE LOAD H2 G2 E2 V2 4416 TA01c H1 V2 H2 G2 0 4416 TA01 V2 0.02 UV ENABLED AT 5V, V RESTORED TO LOAD WHEN V RISES TO 5.5V 0.5 IN IN SUP75P03_07 V2 = 10.8V BACKUP SUPPLY FORWARD VOLTAGE (V) 4416 TA01b OV ENABLED AT 13.5V, V RESTORED TO LOAD WHEN V FALLS TO 12V IN IN 4416fa  cURRENT (A) U ULTC4416/LTC4416-1 U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) TOP VIEW Supply Voltage (V1, V2) .............................. 14V to 40V H1 1 10 G1 Voltage from V1 or V2 to V ....................... 40V to 40V S E1 2 9 V1 GND 3 8 V Input Voltage S E2 4 7 V2 E1, E2 .................................................... 0.3V to 40V H2 5 6 G2 V ........................................................... 14V to 40V MS PACKAGE S 10-LEAD PLASTIC MSOP Output Voltage T = 130C, = 120C/W JMAX JA G1 ....... 0.3V to the Higher of V1 + 0.3V or V + 0.3V S ORDER PART NUMBER MS PART MARKING* G2 ....... 0.3V to the Higher of V2 + 0.3V or V + 0.3V S H1, H2 ..................................................... 0.3V to 7V LTC4416EMS LTCFC Operating Ambient Temperature Range (Note 2) LTC4416IMS LTCFC LTC4416E ............................................ 40C to 85C LTC4416EMS-1 LTCPS LTC4416I ........................................... 40C to 125C LTC4416IMS-1 LTCPS Operating Junction Order Options Tape and Reel: Add #TR Temperature Range ................................ 40C to 125C Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: