MCP130T-270I/TT Microcontroller Supervisory Circuit with Open Drain Output
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MCP130T-270I-TT Microcontroller Supervisory Circuit with Open Drain Output
FEATURES
Holds microcontroller in reset until supply voltage reaches stable operating level
Resets microcontroller during power loss
Precision monitoring of 3V, 3.3V and 5V systems
7 voltage trip points available
Active low RESET pin
Open drain output
Internal pull-up resistor (5 kΩ) for MCP130
Holds RESET for 350 ms (typical)
RESET to VCC = 1.0V
Accuracy of ±125 mV for 5V systems and ±75 mV for 3V systems over temperature
45 µA typical operating current
Temperature range: - Industrial (I): -40°C to +85°C
DESCRIPTION
The Microchip Technology Inc. MCP120/130 is a voltage supervisory device designed to keep a microcontroller in reset until the system voltage has reached the proper level and stabilized. It also operates as protection from brown-out conditions when the supply voltage drops below a safe operating level. Both devices are available with a choice of seven different trip voltages and both have open drain outputs. The MCP130 has an internal 5 kΩ pullup resistor. Both devices have active low RESET pins. The MCP120/130 will assert the RESET signal whenever the voltage on the VDD pin is below the trip-point voltage.
Maximum Ratings
VDD........................................................................7.0V
All inputs and outputs w.r.t.
VSS .....-0.6V to VDD +1.0V
Storage temperature ..........................-65°C to +150°C
Ambient temp. with power applied .....-65°C to +125°C
ESD protection on all pins ..................................... ≥ 2 kV
DC AND AC CHARACTERISTICS
| All parameters apply at the specified temp and voltage ranges unless otherwise noted. | VDD = 1.0 - 5.5V Industrial (I): -40°C to +85°C | ||||||
| Parameter | Symbol | Min. | Typ | Max | Units | Test Conditions | |
| Operating Voltage Range | VDD | 1.0 | -- | 5.5 | V | ||
| VDD Value to RESET | VDDMIN | 1.0 | -- | -- | V | ||
| Operating Current | IDD | --- | 45 | 60 | µA | VDD = 5.5V (no load) | |
| VDD Trip Point |
MCP1X0-270 MCP1X0-300 MCP1X0-315 MCP1X0-450 MCP1X0-460 MCP1X0-475 MCP1X0-485 |
VTRIP |
2.55 2.85 3.0 4.25 4.35 4.50 4.60 |
2.625 2.925 3.075 4.375 4.475 4.625 4.725 |
2.7 3.0 3.15 4.50 4.60 4.75 4.85 |
V | |
| RESET Low Level Output Voltage |
MCP1X0-270 MCP1X0-300 MCP1X0-315 |
VOL | 0.4 | V | IOL = 3.2 mA, VDD = VTRIPMIN | ||
|
MCP1X0-450 MCP1X0-460 MCP1X0-475 MCP1X0-485 |
0.6 | IOL = 8.5 mA, VDD = VTRIPMIN | |||||
| RESET High Level Output Voltage (MCP130 Only | MCP130-xxx (All VTRIP Points) | VOH | VDD-0.7 | --- | -- | V | IOH = 50 µA,VDD > VTRIPMAX |
| Pull-up Resistor (MCP130 Only) | ----- | ----- | 5 | ---- | kΩ | ||
| Output Leakage (MCP120 Only) | ----- | ---- | 1 | ---- | µA | ||
| Threshold Hysteresis | VHYS | 50 | ---- | mV | |||
| VDD Detect to RESET Inactive | tRPU | 150 | 350 | 700 | ms | ||
| VDD Detect to RESET | tRPD | 10 | --- | µs | VDD ramped from VTRIPMAX + 250 mV down to VTRIPMIN - 250 mV | ||
| Note: Typical values are for 25°C and VDD = 5.0V | |||||||
| Image | Part # | Description | |
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