Overview
The NCV317BD2TR4, produced by onsemi, is an adjustable 3-terminal positive voltage regulator. It is part of the LM317 family and is specifically designed for automotive and other applications requiring unique site and control change requirements. This regulator is AEC-Q100 qualified and PPAP capable. The NCV317BD2TR4 is capable of supplying in excess of 1.5 A over an output voltage range of 1.2 V to 37 V, making it highly versatile for various power supply needs.
Key Specifications
| Rating | Symbol | Value | Unit |
|---|---|---|---|
| Input-Output Voltage Differential | VI-VO | -0.3 to 40 | Vdc |
| Power Dissipation (Case 221A, TA = +25°C) | PD | Internally Limited | W |
| Thermal Resistance, Junction-to-Ambient (Case 936, D2PAK-3) | θJA | 70 | °C/W |
| Thermal Resistance, Junction-to-Case (Case 936, D2PAK-3) | θJC | 5.0 | °C/W |
| Operating Junction Temperature Range | TJ | -55 to +150 | °C |
| Storage Temperature Range | Tstg | -65 to +150 | °C |
Key Features
- Output Current in Excess of 1.5 A
- Output Adjustable between 1.2 V and 37 V
- Internal Thermal Overload Protection
- Internal Short Circuit Current Limiting Constant with Temperature
- Exceptionally easy to use, requiring only two external resistors to set the output voltage
- Can be used as a programmable output regulator or as a precision current regulator
Applications
The NCV317BD2TR4 serves a wide variety of applications, including local, on-card regulation. It is suitable for use in automotive and other environments requiring high reliability and specific control change requirements. Additionally, it can be used in laboratory power supplies, adjustable current limit circuits, and other power supply configurations where adjustable output voltage is necessary.
Q & A
- What is the output current capability of the NCV317BD2TR4?
The NCV317BD2TR4 can supply in excess of 1.5 A.
- What is the adjustable output voltage range of the NCV317BD2TR4?
The output voltage is adjustable between 1.2 V and 37 V.
- Does the NCV317BD2TR4 have internal thermal protection?
Yes, it has internal thermal overload protection and thermal shutdown.
- How do you set the output voltage of the NCV317BD2TR4?
The output voltage is set using two external resistors, R1 and R2, connected between the adjustment and output terminals.
- What is the operating junction temperature range of the NCV317BD2TR4?
The operating junction temperature range is -55°C to +150°C.
- Is the NCV317BD2TR4 suitable for automotive applications?
Yes, it is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other demanding applications.
- What is the thermal resistance of the NCV317BD2TR4 in a D2PAK-3 package?
The thermal resistance, junction-to-ambient, is 70°C/W, and junction-to-case is 5.0°C/W.
- Can the NCV317BD2TR4 be used as a precision current regulator?
Yes, by connecting a fixed resistor between the adjustment and output terminals, it can be used as a precision current regulator.
- What is the storage temperature range for the NCV317BD2TR4?
The storage temperature range is -65°C to +150°C.
- Does the NCV317BD2TR4 require a minimum load current to operate correctly?
Yes, it requires a minimum load current; if the load current is less than this minimum, the output voltage will rise.
