ncp382 ON Semiconductor, ncp382 Datasheet
ncp382
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ncp382 Summary of contents
Page 1
... NCP382 Fixed Current-Limiting Power-Distribution Switches The NCP382 is a single input dual outputs high side power−distribution switch designed for applications where heavy capacitive loads and short−circuits are likely to be encountered. The device includes an integrated 80 mW, P−channel MOSFET. The device limits the output current to a desired level by switching into a constant− ...
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... OUT2 O Power−switch output2; connect ceramic capacitor from OUT2 to GND, as close as possible to the IC. This minimum value is recommended for USB requirement in terms of load transient response and strong short circuits. OUT1 IN Rfault 1 mF NCP382 120 mF 100 kW FLAG1 EN1 FLAG2 OUT2 EN2 GND 120 mF Figure 1 ...
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MAXIMUM RATINGS Rating From IN to OUT1, From IN to OUT2 Supply Voltage (Note 1) IN, OUT1,OUT2, EN1, EN2, FLAG1, FLAG2 (Note 1) FLAG1, FLAG2 sink current ESD Withstand Voltage (IEC 61000−4−2) (output only, when bypassed with 1.0 mF capacitor ...
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OPERATING CONDITIONS Symbol Parameter V Operational Power Supply IN V Enable Voltage ENX T Ambient Temperature Range A I FLAG sink current SINK C Decoupling input capacitor IN C Decoupling output capacitor OUTX R Thermal Resistance Junction−to−Air qJA T Junction ...
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ELECTRICAL CHARACTERISTICS 2 5.5 V (Unless otherwise noted). Typical values are referenced to T Symbol Parameter POWER SWITCH R Static drain−source on−state resistance DS(on) T Output rise time R T Output fall time F ENABLE INPUT ENx OR ...
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... VIN V 50% ENx V ENx T ON 90% V OUTx IN OUT1 NCP382 OUT2 GND C Figure 3. Test Configuration V OUTx T OFF 10% Figure 4. Voltage Waveform http://onsemi.com 6 R LOAD LOAD R LOAD LOAD 90% 10% 10% ...
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EN1 EN block Current Limiter GND Oscilator V REF IN UVLO TSD Current Limiter EN2 EN block BLOCK DIAGRAM Control logic and timer Gate Driver Blocking control Blocking control Gate Driver Control logic and timer Figure 5. Block Diagram http://onsemi.com ...
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... In addition, the high side MOSFETs are turned off during undervoltage or thermal shutdown condition. Thanks to the soft start circuitry, NCP382 is able to limit large current and voltage surges. Overcurrent Protection NCP382 switches into a constant current regulation mode ...
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... LOADX OUT2 I OCP PCB Recommendations The NCP382 integrates two PMOS FET rated up to 1.5 A, and the PCB design rules must be respected to properly evacuate the heat out of the silicon. The DFN8 PAD1 must (eq connected to ground plane to increase the heat transfer if necessary ...
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... Over Enable Current Level Limit Evaluation Board ENx Low 0.5A ENx Low 1A ENx Low 1.5A ENx High 0.5A ENx High 1A ENx High 1.5A ENx Low 0.5A NCP382LD05AAGEVB ENx Low 1A NCP382LD10AAGEVB ENx Low 1.5A NCP382LD15AAGEVB ENx High 0.5A NCP382HD05AAGEVB ENx High 1A NCP382HD10AAGEVB ENx High 1.5A NCP382HD15AAGEVB http://onsemi.com 10 † Package ...
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... C 1.35 1.75 0.053 0.069 D 0.33 0.51 0.013 0.020 G 1.27 BSC 0.050 BSC H 0.10 0.25 0.004 0.010 J 0.19 0.25 0.007 0.010 J K 0.40 1.27 0.016 0.050 0.25 0.50 0.010 0.020 S 5.80 6.20 0.228 0.244 mm inches ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative NCP382/D _ ...