Two-Input and Single-Output Power Multiplexer Switch
Automatic and Manual Input Selection Modes
No Cross Conduction between Two Input Sources
Bidirectional Current Flow at Conduction State
Reverse Current Blocking when Disabled
Supply Voltage Range
2.0 V to 5.5 V
RON
20 mΩ Typ at 5.5 VIN1 or VIN2
4.5 A Continuous Output Current Capability Per Channel
Ultra-Low Supply Current at Operation
IQ: 4 μA Typ at 5.5 VIN
Ultra-Low Stand-by Current
ISD: 30 nA Typ at 5.5 VIN
Smart Control Pins
IEN and ISEL : 10 nA Typ at VEN or VSEL > VIH ; REN and RSEL : 500 kΩ Typ
HBM: 6 kV, CDM: 2 kV
The GLF74138 is a fully integrated power path switch with the automatic and manual selection function.
The EN pin can be used along with the SEL pin to control two integrated main FETs of the GLF74138. By the combination of these two pins, one of input source selection modes is set to provide power to downstream system seamlessly. Each FET of the GLF74138 is conducted bidirectionally when it is turned on and current flows from VOUT to VIN pin and vice versa.
The automatic selection mode chooses a higher input voltage source between two inputs. In the manual selection mode, one of input sources is connected to downstream system.
