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NCV47821

ON Semiconductor
Part Number NCV47821
Manufacturer ON Semiconductor
Description 3.3V to 20V Adjustable Dual LDO
Published Jul 1, 2016
Detailed Description NCV47821 3.3 V to 20 V Adjustable Dual LDO with Adjustable Current Limit and Diagnostic Features The NCV47821 dual cha...
Datasheet PDF File NCV47821 PDF File

NCV47821
NCV47821


Overview
NCV47821 3.
3 V to 20 V Adjustable Dual LDO with Adjustable Current Limit and Diagnostic Features The NCV47821 dual channel LDO regulator with 200 mA per channel is designed for use in harsh automotive environments.
The device has a high peak input voltage tolerance and reverse input voltage, reverse bias, overcurrent and overtemperature protections.
The integrated current sense feature (adjustable by resistor connected to CSO pin for each channel) provides diagnosis and system protection functionality.
The CSO pin output current creates voltage drop across CSO resistor which is proportional to output current of each channel.
Extended diagnostic features in OFF state are also available and controlled by dedicated input and output pins.
Features • Adjustable Outputs: 3.
3 V to 20 V ±3% Output Voltage • Output Current per Channel: up to 200 mA • Two Independent Enable Inputs (3.
3 V Logic Compatible) • Adjustable Current Limits: up to 300 mA • Protection Features: ♦ Current Limitation ♦ Thermal Shutdown ♦ Reverse Input Voltage and Reverse Bias Voltage • Diagnostic Features: ♦ Short To Battery (STB) and Open Load (OL) in OFF State ♦ Internal Components for OFF State Diagnostics ♦ Open Collector Flag Output • AEC−Q100 Grade 1 Qualified and PPAP Capable • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant www.
onsemi.
com 14 1 TSSOP−14 Exposed Pad CASE 948AW MARKING DIAGRAM 14 NCV4 7821 ALYWG G 1 A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package (Note: Microdot may be in either location) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 14 of this data sheet.
Typical Applications • Audio and Infotainment System • Active Safety System Cin 1 μF Vin EN1 Diagnostic Enable Input DE Diagnostic Channel Select Input CS Vout1 ADJ1 CSO1 CCSO1 NCV47821 (Dual LDO ) 1 μF EF Vout2 EN2 GND ADJ2 CSO2 CCSO2 1 μF R11 To A /D RCSO1 R12 Cb1* Cout1 10 μF Error ...


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