NCP302 ON, NCP302 Datasheet
NCP302
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NCP302 Summary of contents
Page 1
... NCP302, NCP303 Voltage Detector Series with Programmable Delay The NCP302 and NCP303 series are second generation ultra−low current voltage detectors that contain a programmable time delay generator. These devices are specifically designed for use as reset controllers in portable microprocessor based systems where extended battery life is paramount ...
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... This device series contains ESD protection and exceeds the following tests: Human Body Model 2000 V per MIL−STD−883, Method 3015. Machine Model Method 200 V. 2. The maximum package power dissipation limit must not be exceeded J(max qJA NCP302, NCP303 Symbol OUT I OUT R qJA ...
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... Supply Current (Pin 1 3 Maximum Operating Voltage (Pin 2) Minimum Operating Voltage (Pin − Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) Nch Sink Current, NCP302, NCP303 (V = 0.05V 0.70V) OUT 0.50V 1.5V) OUT in Pch Source Current, NCP302 ( ...
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... Supply Current (Pin 2 4 Maximum Operating Voltage (Pin 2) Minimum Operating Voltage (Pin − Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) Nch Sink Current, NCP302, NCP303 (V = 0.05V 0.70V) OUT 0.50V 1.5V) OUT in Pch Source Current, NCP302 ( ...
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... V = 0.70V) OUT 0.50V 1.5V) OUT in Pch Source Current, NCP302 (V = 2.4V 4.5V) OUT in Reset Output Current (Pin 1, Active High ‘H’ Suffix Devices) Nch Sink Current, NCP302, NCP303 ( 5.0 V) OUT in Pch Source Current, NCP302 ( 0.7 V) OUT GND 1.5 V) OUT ...
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... Supply Current (Pin 4. 6 Maximum Operating Voltage (Pin 2) Minimum Operating Voltage (Pin − Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices) Nch Sink Current, NCP302, NCP303 (V = 0.05V 0.70V) OUT 0.50V 1.5V) OUT in Pch Source Current, NCP302 ( ...
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... Voltage, Pin 1 GND NCP302 and NCP303 series are measured with capacitive load. NCP303 has an additional 470 k pullup resistor connected from the reset output to +5.0 V. The reset output voltage waveforms are shown for the active low ‘L’ devices. Output time delay t and t are dependent upon the delay capacitance ...
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... Condition 2: 0.9 — DET− 5. Condition 3: 0.9 — Condition 4: 0.9 — Condition 4: Active Low ‘L’ Suffix Devices 7. Condition 5: 0.9 — NCP302, NCP303 Supply Current Detector Threshold Detector Threshold Hysteresis V Low (1) (mA) V (V) HYS Max ...
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... Condition 2: 0.9 — DET− 10. Condition 3: 0.9 — 11. Condition 4: 0.9 — 12. Condition 5: 0.9 — Active High ‘H’ Suffix Devices NCP302, NCP303 Supply Current Detector Threshold Detector Threshold Hysteresis V Low (1) (mA) V (V) HYS Max ...
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... DET− 14. Condition 2: 0.9 — DET− 15. Condition 3: 0.9 — 16. Condition 4: 0.9 — Condition 4: Active Low ‘L’ Suffix Devices NCP302, NCP303 Detector Threshold Detector Threshold Hysteresis (V) V (V) HYS Max Min Typ Max 0.918 0.027 0.045 0.063 1 ...
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... C Delay Pin Threshold Voltage vs. Temperature D http://onsemi.com 11 V DET+ V DET− AMBIENT TEMPERATURE ( C) A Figure 4. NCP302/3 Series 2 AMBIENT TEMPERATURE ( C) A Figure 6. NCP302/3 Series 0 AMBIENT TEMPERATURE ( C) A Figure 8. NCP302/3 Series 4.5 V 100 100 ...
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... 0.5 1.0 1.5 2 DELAY PIN VOLTAGE (V) CD Figure 10. NCP302/3 Series 2 Delay Pin Sink Current vs. Voltage (ms (ms) D2 0.001 0.01 0.1 , DELAY PIN CAPACITANCE ( mF Figure 12. NCP302/3 Series 0.9 V Output Time Delay vs. Capacitance = (ms) ...
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... 0.5 1.0 1 OUTPUT VOLTAGE (V) OUT Figure 19. NCP302H/3L Series 2.7 V Reset Output Sink Current vs. Output Voltage NCP302, NCP303 3.0 2.5 2.0 1.5 1.0 0.5 0 0.8 1.0 0 1.0 Figure 16. NCP302L/3L Series 2.7 V Reset Output Voltage vs. Input Voltage 1 1.0 A 0.8 0.6 0.4 0.2 0 5.0 6.0 0 0.2 Figure 18. NCP302H/3L Series 0.9 V Reset Output Sink Current vs. Output Voltage 2 ...
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... D 200 150 100 100 −50 −25 Reset Output Time Delay vs. Temperature http://onsemi.com 14 2.0 4.0 6.0 8 INPUT VOLTAGE (V) in Figure 22. NCP302/3 Series 2.7 V Input Current vs. Input Voltage = 0 AMBIENT TEMPERATURE ( C) A Figure 24. NCP302/3 Series 0 0 AMBIENT TEMPERATURE ( C) A Figure 26 ...
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... INPUT VOLTAGE (V) in Figure 31. NCP302/3 Series 2 Delay Pin Sink Current vs. Input Voltage D NCP302, NCP303 9 0.5 V OUT 8 − 7 6.0 5.0 4 3.0 2.0 1 0.5 0.8 1.0 Figure 28. NCP302H/3L Series 2.7 V Reset Output Sink Current vs. Input Voltage 0 0 0.6 0.5 0.4 0.3 0.2 0.1 0 5.0 4 Delay Pin Sink Current vs. Input Voltage 5.0 4.0 3.0 2.0 1.0 0 2.5 3 Delay Pin Sink Current vs ...
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... Figure 35. NCP302L Series 4.5 V Reset Output Source Current vs. Input Voltage NCP302, NCP303 12 −2 −1 8.0 V −1 6.0 4.0 V −0 2 2.0 Figure 34. NCP302L Series 2.7 V Reset Output Source Current vs. Input Voltage 1.8 −2 1.6 1.4 V −1 1.2 1.0 V −1 0.8 0.6 V −0 0.4 0.2 0 8.0 10 −50 −25 T Figure 36 ...
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... OPERATING DESCRIPTION The NCP302 and NCP303 series devices consist of a precision voltage detector that drives a time delay generator. Figures 37 and 38 show a timing diagram and a typical application. Initially consider that input voltage V nominal level and it is greater than the voltage detector upper threshold (V ) ...
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... Figure 39. Battery Charge Indicator 5 Input 5 NCP303 LSN45T1 Figure 40. Missing Pulse Detector or Frequency Detector NCP302, NCP303 * Microprocessor Reset * Required for NCP303 V < 2 Reset Output V > 2.835 supply 470 k 1 Reset Output 0.001 mF Input ...
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... Increasing − V Decreasing HYS in in 5.0 V 100 Input 5 NCP301 NCP302 NCP301 HSN27T1 LSN27T1 LSN27T1 NCP302, NCP303 Input NCP303 NCP301 NCP301 LSN27T1 LSN27T1 LSN27T1 Reset Reset Output Decreasing as V crosses th in ...
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... 100 mV steps can be manufactured. DET− Figure 44. LED Bar Graph Voltage Monitor NCP302, NCP303 This circuit monitors the current at the load. As current flows through the load, a voltage drop with respect to ground appears across R V ...
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... Power Supply Power Supply 2 Power Supply 3 For monitoring power supplies with a time delay reset, only a single NCP303 with delay capacitor is required. Figure 45. Multiple Power Supply Undervoltage Supervision with Time Delay Reset NCP302, NCP303 2 Input 1 NCP303 LSN18T1 Reset Output 3 GN ...
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... NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices, ranging from 0 4 100 mV increments and NCP302 active high output devices, ranging from 0 4 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical characteristics of these additional devices are shown in Tables 1 and 2. † ...
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... NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices, ranging from 0 4 100 mV increments and NCP302 active high output devices, ranging from 0 4 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical characteristics of these additional devices are shown in Tables 1 and 2. † ...
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... NOTE: The ordering information lists standard undervoltage thresholds with active low outputs. Additional active low threshold devices, ranging from 0 4 100 mV increments and NCP302 active high output devices, ranging from 0 4 100 mV increments can be manufactured. Contact your ON Semiconductor representative for availability. The electrical characteristics of these additional devices are shown in Tables 1 and 2. † ...
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... P.O. Box 61312, Phoenix, Arizona 85082−1312 USA Phone: 480−829−7710 or 800−344−3860 Toll Free USA/Canada Fax: 480−829−7709 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com NCP302, NCP303 PACKAGE DIMENSIONS THIN SOT−23−5/TSOP−5/SC59−5 CASE 483−02 ...