| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 28 Pin |
| Supply Voltage (DC) | 4.75V (min) |
| Case/Package | TQFN-28 |
| Number of Positions | 28 Position |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage (Max) | 28 V |
| Supply Voltage (Min) | 4.75 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Cut Tape (CT) |
| Operating Temperature | -40℃ ~ 85℃ (TA) |
The MAX1538ETI+T is a power-source selector for dual-battery systems in 28 pin TQFN package. It selects between an AC adapter and dual batteries based on the presence of the three power sources and the state of charge of each battery. It includes analogue comparators to detect AC/airline-adapter presence and determine battery undervoltage. Fast analogue circuitry allows the device to switch between power sources to implement a break-before-make time which allows hot swapping of battery packs. It independently performs power-source monitoring and selection, freeing the system power-management µP for other tasks. This simplifies development of µP power-management firmware and allows the µP to enter standby, reducing system power consumption. It supports relearn mode which allows the system to measure and fully utilize battery capacity. In this state, it allows the selected battery to be discharged even when an AC adapter is present. It can also be used to power system in an aircraft.
● Supply voltage range is 4.75V to 28V
● Operating temperature range from -40°C to 85°C
● Step down and step up charger compatibility
● Maximum battery quiescent current is 50µA
● Direct drive of P-channel MOSFETs
● Simplifies power-management µP firmware
Maxim Integrated
22 Pages / 0.48 MByte
Maxim Integrated
22 Pages / 0.44 MByte
Maxim Integrated
MAXIM INTEGRATED PRODUCTS MAX1538ETI+ Power Source Selector for Dual Battery Systems, 28V, 0.025A, TQFN-28
Maxim Integrated
MAXIM INTEGRATED PRODUCTS MAX1538ETI+T Special Function IC, Power Source Selector, 4.75V to 28V in, TQFN-28
Maxim Integrated
Power Switch Hi Side 0.025A 28Pin TQFN EP
Maxim Integrated
Eval Kit MAX1538 (Power-Source Selector for Dual-Battery Systems)
Maxim Integrated
Power Switch Hi Side 0.025A 28Pin TQFN EP T/R
Dallas Semiconductor
DC-DC converter; step up/down; Uin:4.75÷28V; QFN28
Part Datasheet PDF Search
72,405,303 Parts Datasheet PDF, Update more than 5,000 PDF files ervery day.
