The TSM111 is an integrated circuit that incorporates multiple sensing functions. It includes voltage references, comparators and matched resistors bridges for overcurrent and overvoltage detection without the need for any external components. It also provides a programmable delay function for controlling on and off delays. It can be used in power management systems for desktop computers to monitor currents and voltages and to generate power good signals to the system.
The TSM111 integrated circuit is designed to control triple output power supplies in SMPS applications, such as desktop PCs. It incorporates sensing circuits for overcurrent and overvoltage detection for 3.3V, 5V, and 12V outputs without the need for external components. The device also includes a power good circuitry, a remote on/off function, and programmable timing for the power good signal.
The IC provides two 1.6% voltage references for main and auxiliary converter regulation loops. It is available in a DIP20 plastic package and a DSO plastic micropackage. The datasheet details absolute maximum ratings, operating conditions, electrical characteristics, pin descriptions, application diagrams, and mechanical package data.
| Supply Voltage Range | 14.5V to 36V |
|---|---|
| Voltage References | Two 1.6% voltage references |
| Operating Temperature Range | 0 to +70 °C |
| Storage Temperature Range | -55 to +150 °C |
| Power Dissipation | 1 W |
| ESD Rating | 2 kV |
| Overvoltage Sense 3.3V | 3.8V to 4.2V |
| Overvoltage Sense 5V | 5.8V to 6.4V |
| Overvoltage Sense 12V | 13.4V to 15V |
| Current Sense Threshold 3.3V | 46.5mV to 53.5mV |
| Current Sense Threshold 5V | 46.5mV to 53.5mV |
| Current Sense Threshold 12V | 60.5mV to 69.5mV |
| Power Good Turn on Delay | 100ms to 500ms |
| Remote On/Off Input Threshold | 1V to 1.8V |
The supply voltage range is 14.5V to 36V.
No, it includes voltage references, comparators, and matched resistors for detection without the need of any external components.
It provides two 1.6% voltage references for main and auxiliary converter regulation loops.
The operating free air temperature range is 0 to +70 °C.