Datasheet MCP6C02 (Microchip)

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MCP6C02 Zero-Drift, 65V High-Side Current Sense Amplifier Features General Description
• Single Amplifier: MCP6C02 The Microchip Technology Inc. MCP6C02 high-side • Bidirectional or Unidirectional current sense amplifier is offered with preset gains of • Input (Common-mode) Voltages: 20, 50 and 100 V/V. The Common-mode input range (V - +3.0V to +65V, specified IP) is +3V to +65V. The Differential-mode input range (VDM = VIP – VIM) supports unidirectional and - +2.8V to +68V, operating bidirectional applications. - -0.3V to +70V, survival The power supply can be set between 2.0V and 5.5V. • Power Supply: Parts in the SOT-23 package are specified over -40°C - 2.0V to 5.5V to +125°C (E-Temp), while parts in the 3×3 VDFN - Single or Dual (Split) Supplies package are specified over -40°C to +150°C (H-Temp). • High DC Precision: The Zero-Drift architecture supports very low input - VOS: ±1.65 μV (typical) errors, which allow a design to use shunt resistors of - CMRR: 154 dB (typical) lower value (and lower power dissipation). - PSRR: 138 dB (typical)
Package Types (Top View)
- Gain Error: ±0.1% (typical)
MCP6C02 MCP6C02
• Preset Gains: 20, 50 and 100 V/V SOT-23 3×3 VDFN * • POR Protection: V 1 6 V VIP 1 8 V - HV POR fo r V OUT DD IM IP – VSS V 2 5 V V 2 EP 7 V - LV POR fo r V SS REF SS REF DD – VSS V 3 4 V NC 3 9 6 V • Bandwidth: 500 kHz (typical) IP IM DD NC 4 5 VOUT • Supply Currents: - I * Includes Exposed Thermal Pad (EP); see DD: 490 μA (typical) Table 3-1. - IBP: 170 μA (typical) • Enhanced EMI Protection: - EMIRR: 118 dB at 2.4 GHz (typical)
Typical Application Circuit
• Specified Temperature Ranges: - -40°C to +125°C (E-Temp part) +5V - -40°C to +150°C (H-Temp part) 2.2 µF
Typical Applications
10 nF U1 100 nF • Automotive (see Product Identification System)
MCP6C02-100
- AEC-Q100 Qualified, Grade 0 V (VDFN package) BAT RSH V +36V OUT 2.2 mΩ - AEC-Q100 Qualified, Grade 1 20 kΩ (SOT-23 package) • Motor Control IL < 20A • Analog Level Shifter VL • Industrial Computing • Battery Monitor/Tester
Related Products
• MCP6C04-020 • MCP6C04-050 • MCP6C04-100  2018-2021 Microchip Technology Inc. DS20006129C-page 1 Document Outline Features Typical Applications Related Products General Description Typical Application Circuit Functional Diagram Gain Options TABLE 1: Key Differentiating Specifications FIGURE 1: Input Offset Voltage vs. Temperature, GDM = 20 V/V. FIGURE 2: Input Offset Voltage vs. Temperature, GDM = 50 V/V. FIGURE 3: Input Offset Voltage vs. Temperature, GDM = 100 V/V. FIGURE 4: CMRR vs. Frequency. 1.0 Electrical Characteristics 1.1 Absolute Maximum Ratings † 1.2 Voltage and Temperature Ranges TABLE 1-1: Voltage and Temperature Ranges 1.3 Specifications TABLE 1-2: DC Electrical Characteristics TABLE 1-3: AC Electrical Characteristics TABLE 1-4: Temperature Specifications 1.4 Simplified Diagrams FIGURE 1-1: Common-Mode Input Voltage Range vs. Temperature. FIGURE 1-2: Differential Input Voltage Range vs. Temperature. FIGURE 1-3: Reference Voltage Range vs. Temperature. FIGURE 1-4: Common-Mode Input Overdrive Recovery Timing Diagram. FIGURE 1-5: Differential-Mode Input Overdrive Recovery Timing Diagram. FIGURE 1-6: Output Overdrive Recovery Timing Diagram. FIGURE 1-7: VOUT Power On/Off Timing Diagram, Low-Side. FIGURE 1-8: VOUT Power On/Off Timing Diagram, High-Side. 1.5 Simplified Test Circuits FIGURE 1-9: Input Offset Test Circuit for the MCP6C02. EQUATION 1-1: EQUATION 1-2: FIGURE 1-10: Differential Gain Test Circuit. FIGURE 1-11: AC Gain Test Circuit. 1.6 Explanation of DC Error Specifications EQUATION 1-3: EQUATION 1-4: EQUATION 1-5: TABLE 1-5: Exponential Term EQUATION 1-6: FIGURE 1-12: Input Offset Error vs. Common-Mode Input Voltage. EQUATION 1-7: EQUATION 1-8: EQUATION 1-9: FIGURE 1-13: Differential Input Error vs. Differential Input Voltage. EQUATION 1-10: EQUATION 1-11: 2.0 Typical Performance Curves 2.1 DC Precision FIGURE 2-1: Input Offset Voltage, GDM = 20. FIGURE 2-2: Input Offset Voltage, GDM = 50. FIGURE 2-3: Input Offset Voltage, GDM = 100. FIGURE 2-4: Linear Input Offset Voltage Drift, GDM = 20. FIGURE 2-5: Linear Input Offset Voltage Drift, GDM = 50. FIGURE 2-6: Linear Input Offset Voltage Drift, GDM = 100. FIGURE 2-7: Quadratic Input Offset Voltage Drift, GDM = 20. FIGURE 2-8: Quadratic Input Offset Voltage Drift, GDM = 50. FIGURE 2-9: Quadratic Input Offset Voltage Drift, GDM = 100. FIGURE 2-10: Exponential Input Offset Voltage Drift, GDM = 20. FIGURE 2-11: Exponential Input Offset Voltage Drift, GDM = 50. FIGURE 2-12: Exponential Input Offset Voltage Drift, GDM = 100. FIGURE 2-13: Input Offset Voltage vs. Power Supply Voltage, with GDM = 20. FIGURE 2-14: Input Offset Voltage vs. Power Supply Voltage, with GDM = 50. FIGURE 2-15: Input Offset Voltage vs. Power Supply Voltage, with GDM = 100. FIGURE 2-16: Input Offset Voltage vs. Common-Mode Input Voltage, with GDM = 20. FIGURE 2-17: Input Offset Voltage vs. Common-Mode Input Voltage, with GDM = 50. FIGURE 2-18: Input Offset Voltage vs. Common-Mode Input Voltage, with GDM = 100. FIGURE 2-19: Input Offset Voltage vs. Reference Voltage, with GDM = 20. FIGURE 2-20: Input Offset Voltage vs. Reference Voltage, with GDM = 50. FIGURE 2-21: Input Offset Voltage vs. Reference Voltage, with GDM = 100. FIGURE 2-22: 1/CMRR, with GDM = 20. FIGURE 2-23: 1/CMRR, with GDM = 50. FIGURE 2-24: 1/CMRR, with GDM = 100. FIGURE 2-25: 1/PSRR, with GDM = 20. FIGURE 2-26: 1/PSRR, with GDM = 50. FIGURE 2-27: 1/PSRR, with GDM = 100. FIGURE 2-28: CMRR vs. Ambient Temperature. FIGURE 2-29: PSRR vs. Ambient Temperature. FIGURE 2-30: Input Offset Voltage - Final Test Results. FIGURE 2-31: PSRR - Final Test Results. FIGURE 2-32: CMRR - Final Test Results. FIGURE 2-33: Gain Error. FIGURE 2-34: Gain Error Temperature Drift. FIGURE 2-35: Differential Gain Nonlinearity. 2.2 Other DC Voltages and Currents FIGURE 2-36: VIP Pin Input Bias Current vs. Input Common-Mode Voltage. FIGURE 2-37: VIM Pin Input Bias Current vs. Input Common-Mode Voltage, VDM = VDML. FIGURE 2-38: VIM Pin Input Bias Current vs. Input Common-Mode Voltage, VDM = VDMH. FIGURE 2-39: VIP Pin Input Bias Current vs. Ambient Temperature. FIGURE 2-40: VIM Pin Input Bias Current vs. Ambient Temperature. FIGURE 2-41: VIM Pin Input Bias Current vs. Differential Input Voltage. FIGURE 2-42: Input Bias Current vs. Input Common-Mode Voltage (below VSS). FIGURE 2-43: Common-Mode Input Range vs. Ambient Temperature. FIGURE 2-44: Reference Voltage Range vs. Ambient Temperature. FIGURE 2-45: Minimum Rise or Fall Time vs. Common Mode Input Step. FIGURE 2-46: Output Voltage Range vs. Output Current. FIGURE 2-47: Output Voltage Range vs. Ambient Temperature. FIGURE 2-48: Supply Current vs. Power Supply Voltage. FIGURE 2-49: Output Short Circuit Current vs. Power Supply Voltage for E-Temp Parts. FIGURE 2-50: Output Short Circuit Current vs. Power Supply Voltage for H-Temp Parts. FIGURE 2-51: LV POR (for VDD) Trip Points vs. Ambient Temperature. FIGURE 2-52: HV POR (for VIP) Trip Points vs. Ambient Temperature. 2.3 Frequency Response FIGURE 2-53: Gain vs. Frequency, with Capacitive Load. FIGURE 2-54: CMRR vs. Frequency. FIGURE 2-55: PSRR vs. Frequency. FIGURE 2-56: Closed-Loop Output Impedance Magnitude vs. Frequency. FIGURE 2-57: EMI Rejection Ratio vs. Frequency. FIGURE 2-58: EMI Rejection Ratio vs. Signal Strength. 2.4 Noise and Intermodulation Distortion FIGURE 2-59: Input Noise Voltage Density vs. Frequency. FIGURE 2-60: Input Noise Voltage vs. Frequency. FIGURE 2-61: Intermodulation Distortion vs. Frequency, with VDD Disturbance. FIGURE 2-62: Input Noise Voltage vs. Time, GDM = 20. FIGURE 2-63: Input Noise Voltage vs. Time, GDM = 50. FIGURE 2-64: Input Noise Voltage vs. Time, GDM = 100. 2.5 Time Response FIGURE 2-65: Input Offset Voltage vs. Time, with Temperature Change. FIGURE 2-66: Input Offset Voltage vs. Time, at Power-Up. FIGURE 2-67: The MCP6C02 Shows No Phase Reversal vs. Differential Input Overdrive. FIGURE 2-68: The MCP6C02 Shows No Phase Reversal vs. Input Common-Mode Overdrive. FIGURE 2-69: Small Signal Step Response to Differential Input Voltage. FIGURE 2-70: Small Signal Step Response to Common-Mode Input Voltage. FIGURE 2-71: Small Signal Step Response to Differential Input Voltage, with Capacitive Load (CL). FIGURE 2-72: Small Signal Step Response Overshoot, with Capacitive Load (CL). FIGURE 2-73: Small Signal Step Response Rise Time, with Capacitive Load (CL). FIGURE 2-74: Small Signal Step Response Settling Time, with Capacitive Load (CL). 3.0 Pin Descriptions TABLE 3-1: Pin Function Table 3.1 Noninverting Analog Signal Input (VIP) 3.2 Inverting Analog Signal Input (VIM) 3.3 Analog Output Reference Voltage (VREF) 3.4 Analog Output (VOUT) 3.5 Low-Side Power Supplies (VDD, VSS) 3.6 Exposed Pad (EP) 4.0 Device Operation 4.1 Basic Performance EQUATION 4-1: FIGURE 4-1: Basic Circuit. FIGURE 4-2: MCP6C02 Block Diagram. EQUATION 4-2: EQUATION 4-3: EQUATION 4-4: FIGURE 4-3: DC Bias Resistors and Currents. EQUATION 4-5: EQUATION 4-6: EQUATION 4-7: 4.2 Overview of Zero-Drift Operation FIGURE 4-4: MCP6C02 Block Diagram. FIGURE 4-5: First Chopping Clock Phase; Simplified Diagram. FIGURE 4-6: Second Chopping Clock Phase; Simplified Diagram. 4.3 Internal Protection FIGURE 4-7: Input Protection for VDM (i.e., for VIM) and VIP – VSS. FIGURE 4-8: Input Protection for VREF, VOUT and VDD. 5.0 Applications 5.1 Recommended Design Practices FIGURE 5-1: Protecting VIP. FIGURE 5-2: Protecting VDM with Diodes. FIGURE 5-3: Protecting VDM with a Filter at VIM. FIGURE 5-4: Protection for Capacitive Loads. FIGURE 5-5: Protection for Motor Loads. EQUATION 5-1: FIGURE 5-6: PCB Layout for RSH (connections to VIP and VIM). EQUATION 5-2: EQUATION 5-3: FIGURE 5-7: VREF Bypass Circuit #1. FIGURE 5-8: VREF Bypass Circuit #2. FIGURE 5-9: Recommended RISO Values for Capacitive Loads. FIGURE 5-10: Bandwidth and Gain Peaking vs. Capacitive Load, without RISO. FIGURE 5-11: Recommended RISO vs. Capacitive Load. FIGURE 5-12: SNR vs. Bandwidth Estimates, VDD = 2.0V. FIGURE 5-13: SNR vs. Bandwidth Estimates, VDD = 5.5V. 5.2 Typical Application Circuits FIGURE 5-14: Simplified Motor Current Monitor for Regulated Supply Voltage. FIGURE 5-15: H-Bridge Motor Current Monitor, With a Few Possible Monitor Locations. FIGURE 5-16: Analog Level Shifter. 6.0 Packaging Information 6.1 Package Marking Information Zero-Drift, 65V High-Side Current Sense Amplifier Appendix A: Revision History Revision C (January 2021) Revision B (September 2019) Revision A (November 2018) Appendix B: Offset Test Screens TABLE B-1: Offset Test Screens Product Identification System Worldwide Sales and Service