TLF4277-2EL
The TLF4277-2 is the ideal companion IC to supply active antennas for car infotainment applications. The adjustable output voltage makes the TLF4277-2 capable of supplying the majority of standard active antennas such as: • FM/AM • DAB • XM • SIRIUS The TLF4277-2 is a monolithic integrated low drop out voltage regulator capable of supplying loads up to 300 mA. For an input voltage up to 40 V the TLF4277-2 provides an adjustable output voltage in a range from 5 V up to 12 V. The integrated current monitor function is a unique feature that provides diagnosis and system protection functionality. Fault conditions such as overtemperature and output overvoltage are monitored and indicated at the current sense output. The maximum output current limit of the device is adjustable to provide additional protection to the connected load. Via the enable function the IC can be disabled to lower the power consumption. The PG-SSOP14 EP package provides an enhanced thermal performance within a SO8 body size.
eLearning: Active Antenna Supply TLF4277-2
| Parametric | TLF4277-2EL |
|---|
| Operating Voltage
min
max | 5.0V
45.0V |
|---|
| Output Voltage Type | adj. |
|---|
| Accuracy | 2.0% |
|---|
| Output Current
(max.) | 300mA |
|---|
| Regulator Type | Linear->Antenna Supply |
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| Dropout Voltage | 200mV |
|---|
| Quiescent Current | 0.150mA |
|---|
| Operating Temperature
min
max | -40.0°C
150.0°C |
|---|
| Over Voltage Protection | no |
|---|
| Enable (=Inhibit) | yes |
|---|
| Reset | no |
|---|
| Power Fail | no |
|---|
| Power Good | no |
|---|
| Status Output | yes |
|---|
| Hold | no |
|---|
| Watchdog | no |
|---|
| Early Warning | no |
|---|
| Sales Product Name | TLF4277-2EL |
|---|
| OPN | TLF42772ELXUMA2 |
|---|
| Product Status | active and preferred |
|---|
| Package Name | PG-SSOP-14 |
|---|
| Completely lead free | yes |
|---|
| Halogen free | yes |
|---|
| RoHS compliant | yes |
|---|
| Packing Size | 2500 |
|---|
| Packing Type | TAPE & REEL |
|---|
| Moisture Level | 3 |
|---|
| Summary of Features:- Integrated Current Monitor
- Adjustable Current Limitation
- Adjustable Output Voltage
- Overvoltage Detection
- Output Current up to 300 mA
- Very Low Current Consumption
- Very Low Dropout Voltage
- Wide Input Voltage Range up to 40 V
- Reverse Polarity Protection
- Short Circuit Protected
- Overtemperature Shutdown
- Digital status output for fault conditions
- Automotive Temperature Range -40 °C ≤ T j ≤ 150 °C
- Green Product (RoHS and WEEE compliant)
- AEC Qualified
Benefits:- Robust protection features
- Wide input operation and temperature range
- Integrated current monitor
Target Applications:- Automotive antenna supply
 功能框图  |
Data Sheet
Product Brochure
Application Notes
Product Brief
Product Selection Guide
Material Content SheetInfo
PCB Design Data
Evaluation Boards
| Board | Family | Description | Status |
|---|
| DEMOBOARD TLF4277-2EL | Linear Voltage Regulator | The TLF4277-2 is a monolithic integrated low drop out voltage regulator capable of supplying loads up to 300 mA. For an input voltage up to 40 V the TLF4277-2 provides an adjustable output voltage in a range from 5 V up to 12 V. The integrated current monitor function is a unique feature that provides diagnosis and system protection functionality. Fault conditions such as overtemperature and output overvoltage are monitored and indicated at the current sense output. The maximum output current limit of the device is adjustable to provide additional protection to the connected load.
Via the enable function the IC can be disabled to lower the power consumption. The PG-SSOP14 EP package provides an enhanced thermal performance within a SO8 body size.
TLF4277-2EL | on request |
| TLS810C1EJV33 BOARD | Linear Voltage Regulator | The TLS810C1EJV33 is a linear voltage regulator of wide input voltage range, low drop out voltage and ultra low quiescent current. With an input voltage range of 2.75V to 42V and ultra low quiescent of only 8.5μA the regulators are perfectly suitable for automotive or any other supply systems connected permanently to the battery. The TLS810C1EJV33 is available in 3.3V output voltage version with an accuracy of 2 % and output current capability up to 100mA. It is stable with only a small ceramic capacitor of 1μF at the output. With extended operating range down to 2.75V, TLS810C1EJV33 is also suitable to supply automotive systems operating during cranking condition. TLS810C1EJV33 includes internal protection features like output current limitation and over-temperature shutdown. The output voltage is supervised by the Reset feature, including under-voltage reset and delayed reset release at power-on.Channel=ff80808112ab681d0112ab69bfb202efTLS810C1EJV33 | on request |
| TLS810D1EJV50 BOARD | Linear Voltage Regulator | The TLS810D1EJV50 is a linear voltage regulator featuring wide input voltage range, low drop out voltage and ultra low quiescent current. With an input voltage range of 2.75V to 42V and ultra low quiescent of only 9μA the regulators are perfectly suitable for automotive or any other supply systems connected permanently to the battery. The TLS810D1EJV50 is available in 5.0V output voltage version with an accuracy of 2 % and output current capability up to 100mA. It is stable with only a small ceramic capacitor of 1μF at the output. The device can be switched on and off by the Enable feature leading to a current consumption of less than 1μA. With extended operating range down to 2.75V, TLS810D1EJV50 is also suitable to supply automotive systems operating during cranking condition. TLS810D1EJV50 includes internal protection features like output current limitation and over-temperature shutdown. The output voltage is supervised by the Reset feature, including under-voltage reset and delayed reset release at power-on.TLS810D1EJV50 | on request |
Package Data
PCB Design Data
