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BD4271EFJ-C
BD4271EFJ-C (開發中)
550mA Output LDO Regulator with WDT and Voltage Detector
BD4271EFJ-C is automotive voltage regulator with watchdog timer and offers the output current of 550mA while limiting the quiescent current low. A logical "HIGH" at the CTL pin enables the LDO regulator and "LOW" disables the LDO regulator and keeps current consumption low. A reset signal is generated for an output voltage VO of Typ 4.65V. The reset delay time and watchdog time (WDT) can be programmed by the external capacitor.
Product Detail
功能安全:
類別 : FS supportive
A product that has been developed for automotive use and is capable of supporting safety analysis with regard to the functional safety.
規格:
Grade
Automotive
Common Standard
AEC-Q100 (Automotive Grade)
Breakdown Voltage(Max.)[V]
45.0
ch
1
Vin(Min.)[V]
5.5
Vin(Max.)[V]
45.0
Vout Precision
±2.0%
Iout(Max.)[A]
0.55
Circuit Current[mA]
0.075
Shutdown Function
Yes
Thermal Shut-down
Yes
Over Current Protection
Yes
Under Voltage Lock Out
Yes
Discharge Function
Yes
I/O Voltage Difference (Typ.)[V]
0.2(Io=300mA)
Ripple Rejection [dB]
60.0
Load Regulation[mV]
10
Detect Voltage(VDET) [V]
4.65
VDET Precision
0.026
Additional Feature
5V LDO + 4.65V Reset + WDT
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
150
功能:
- AEC-Q100 qualified
- Low ESR ceramic capacitors applicable for output
- Low drop voltage: PDMOS output transistor
- Power on and under-voltage reset
- Programmable reset delay and watchdog time by external capacitor
- Enable input
- Over Current Protection (OCP)
- Thermal Shut Down (TSD)
Design Resources
Technical Articles
Schematic Design & Verification
- Basics of Linear Regulators
- Linear Regulator Specifications
- Reverse Voltage Protection
- Power Source ON/OFF Characteristics for Linear Regulator
- Simple Test Method for Estimating the Stability of Linear Regulators
- Connecting LDOs in Parallel
- Problem Situations: Power Supply Does Not Start
- Power Supply Sequence Circuit with General Purpose Power Supply IC
- Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter
- Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
- BAxxCC0 Series Circuit Using a Ceramic Output Capacitor
- Importance of Probe Calibration When Measuring Power: Deskew
- Impedance Characteristics of Bypass Capacitor
Thermal Design
- Method for Calculating Junction Temperature from Transient Thermal Resistance Data
- Thermal Calculation for Linear Regulator
- Thermal Resistance
Tools
2D/3D/CAD
- HTSOP-J8 Footprint / Symbol
- HTSOP-J8 3D STEP Data
Packaging & Quality
Manufacturing Data
- Factory Information
