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NCV47722 Dataheets PDF



Part Number NCV47722
Manufacturers ON Semiconductor
Logo ON Semiconductor
Description High Side Switch
Datasheet NCV47722 DatasheetNCV47722 Datasheet (PDF)

High Side Switch with Adjustable Current Limit and Diagnostic Features NCV47722 The NCV47722 High Side Switch (HSS) with 250 mA 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) provides diagnosis and system protection functionality. The CSO pin output current creates voltag.

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High Side Switch with Adjustable Current Limit and Diagnostic Features NCV47722 The NCV47722 High Side Switch (HSS) with 250 mA 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) provides diagnosis and system protection functionality. The CSO pin output current creates voltage drop across CSO resistor which is proportional to output current. Extended diagnostic features in OFF state are also available and controlled by dedicated input and output pins. Features • Output Current: up to 250 mA • Enable Input (3.3 V Logic Compatible) • Adjustable Current Limit: up to 350 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 ♦ Output Voltage Monitoring Output (analog) • AEC−Q100 Grade 1 Qualified and PPAP Capable • These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant Typical Applications • Audio and Infotainment System • Active Safety System Cin 1 µF Diagnostic Enable Input Vin Vout Vout_FB EN NCV47722 CSO CCSO 1 µF DE EF GND To A/D R CSO C out 1 µF Error Flag Output (Open Collector) *Vout_FB is sensed Vout output voltage via internal resistor divider Figure 1. Application Schematic This document contains information on some products that are still under development. ON Semiconductor reserves the right to change or discontinue these products without notice. www.onsemi.com MARKING DIAGRAM 14 1 14 TSSOP−14 Exposed Pad CASE 948AW 1 NCV4 7722 ALYWG G 47722 A L Y W G = Specific Device Code = Assembly Location = Wafer Lot = Year = Work Week = 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 10 of this data sheet. © Semiconductor Components Industries, LLC, 2015 1 July, 2020 − Rev. 1 Publication Order Number: NCV47722/D NCV47722 IPU 10 mA IPU_ON Vin ICSO = Iout / RATIO* VOLTAGE REFERENCE RPD_ON VREF VREF_OFF PASS DEVICE AND 780k CURRENT MIRROR EN ENABLE EN + VREF 2.55 V − SATURATION PROTECTION THERMAL SHUTDOWN PD_ON OC_ON + − 0.95x VREF Vout CSO RPD1 500k STB_OL_OFF + RPD2 Vout_FB 100k EN IPU_ON − VREF_OFF 0.5 V DE RPD_DE 780k PD_ON STB_OL_OFF DIAGNOSTIC CONTROL LOGIC EF OC_ON GND *) for current value of RATIO see into Electrical Characteristic Table Figure 2. Simplified Block Diagram www.onsemi.com 2 NCV47722 1 NC NC NC GND EN CSO Vin EPAD TSSOP−14 EPAD 14 NC NC NC EF DE Vout_FB Vout Figure 3. Pin Connections (Top Views) Table 1. PIN FUNCTION DESCRIPTION Pin No. TSSOP−14 EPAD Pin Name Description 1 NC Not Connected, not internally bonded. 2 NC Not Connected, not internally bonded. 3 NC Not Connected, not internally bonded. 4 GND Power Supply Ground. 5 EN Enable Input; low level disables regulator. (Used also for OFF state diagnostics control. 6 CSO Current Sense Output, Current Limit setting and Output Current value information. See Application Section for more details. 7 Vin Power Supply Input. 8 Vout Regulated Output Voltage. 9 Vout_FB Output Voltage Analog Monitoring. See Application Section for more details. 10 DE Diagnostic Enable Input. 11 EF Error Flag (Open Collector) Output. Active Low. 12 NC Not Connected, not internally bonded. 13 NC Not Connected, not internally bonded. 14 NC Not Connected, not internally bonded. EPAD EPAD Exposed Pad is connected to Ground. Connect to GND plane on PCB. www.onsemi.com 3 NCV47722 Table 2. MAXIMUM RATINGS Rating Symbol Min Max Unit Input Voltage DC Input Voltage (Note 1) Load Dump − Suppressed Vin −42 Us* − 45 V V 60 Enable Input Voltage VEN −42 45 V Output Voltage Monitoring Vout_FB −0.3 10 V CSO Voltage VCSO −0.3 7 V DE, CS and EF Voltages VDE, VCS, VEF −0.3 7 V Output Voltage Vout −1 40 V Junction Temperature TJ −40 150 °C Storage Temperature TSTG −55 150 °C Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. Load Dump Test B (with centralized load dump suppression) according to ISO16750−2 standard. Guaranteed by design. Not tested in production. Passed Class A according to ISO16750−1. Table 3. ESD CAPABILITY (Note 2) Rating Symbol Min Max Unit ESD Capability, Human Body Model ESDHBM −2 2 kV 2. This device series incorporates ESD protection and is tested by the following methods: ESD.


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