LTC4416
LTC4416 is Low Loss Dual PowerPath Controllers manufactured by Linear Technology.
feature that dramatically increases gate drive current when the forward input voltage exceeds 25m V. The LTC4416 “fast off” feature is engaged when the sense voltage exceeds the input voltage by 25m V. The LTC4416-1 enables the fast off under the same conditions and when the other external P-channel device is selected using the enable pins. The wide operating supply range supports operation from one to eight Li-Ion cells in series. The low quiescent current (35µA per channel) is independent of the load current. The gate driver includes an internal voltage clamp for MOSFET protection. The LTC4416/LTC4416-1 are available in low profile 10-lead MSOP packages.
High Current Power Path Switch Industrial and Automotive Applications Uninterruptible Power Supplies Logic Controlled Power Switch Battery Backup System Emergency Systems with Battery Backups
, LT, LTc and LTM are registered trademarks of Linear Technology corporation. Power Path is a trademark of Linear Technology corporation. All other trademarks are the property of their respective owners.
Automatic Power Path Switchover
V1 V1 = 12V (FAIL) V1 = 13.5V (RESTORE) PRIMARY SUPPLY 221k LTC4416 187k GND 24.9k E1 GND E2 H2 H1 V2 V2 = 10.8V BACKUP SUPPLY SUP75P03_07 V1 G1 VS G2 V2
4416 TA01
SUP75P03_07 c URRENT (A) 3.6 LTc4416
TYPICAL APPLICATIO
LTC4416 vs Schottky Diode Forward Voltage Drop
8.0 c ONSTANT RON
Under and Overvoltage Shutdown Operation
VIN 221k VTH2 WITH HYSTERESIS Sc HOTTKY DIODE 24.9k GND VTH1 WITH HYSTERESIS 187k 24.3k 75k 182k LTC4416-1 H1 G1 E1 GND E2 H2 0.02 FORWARD VOLTAGE...
