Datasheet MAX40056F, MAX40056T, MAX40056U (Maxim) - 3
| Manufacturer | Maxim |
| Description | Bidirectional Current Sense Amplifier with PWM-Rejection |
| Pages / Page | 21 / 3 — Electrical Characteristics. PARAMETER. SYMBOL. CONDITIONS. MIN. TYP. MAX. … |
| File Format / Size | PDF / 1.4 Mb |
| Document Language | English |
Electrical Characteristics. PARAMETER. SYMBOL. CONDITIONS. MIN. TYP. MAX. UNITS. POWER SUPPLY CHARACTERISTICS
Model Line for this Datasheet
Text Version of Document
MAX40056F/MAX40056T/ Bidirectional Current Sense MAX40056U Amplifier with PWM-Rejection
Electrical Characteristics
(VDD = 3.3V, VCM = 48V, VSENSE = 20mV, OUT loading = 10kΩ and 20pF to GND, COP loading = 5kΩ and 10pF to GND, TMIN = -40°C, TMAX = 125°C, (Note 1))
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY CHARACTERISTICS
Supply Voltage VDD Guaranteed by PSRR 2.7 5.5 V Supply Current IDD 6 9 mA Power-Up Time tPWR_UP Out settle within 1% 400 µs
CURRENT SENSE AMPLIFIER / DC CHARACTERISTICS
Input Protected CM V Range CM_P -5 +70 V Input Common Mode -40°C ≤ TA ≤ +85°C -0.3 +65 V V Range CM -40°C ≤ TA ≤ +85°C -0.1 +65 VSENSE = 0V (Note 2) 3 200 nA Input Bias Current IRS+ , IRS- VSENSE = 20mV 20 30 µA Input Leakage Current ILKG VDD = 0V, 0V ≤ VRS± ≤ 65V (Note 2) 3 200 nA TA = +25°C 5 20 Input Offset Voltage VOS μV -40°C ≤ TA ≤ +125°C 300 Input Offset Drift TCVOS 0.5 µV/°C Power Supply Rejection PSRR 2.7V ≤ V Ratio DD ≤ 5.5V 90 110 dB -0.3V ≤ VCM ≤ +65V; -40°C ≤ TA ≤ +85°C 100 140 Common Mode CMRR Rejection Ratio -0.1V ≤ VCM ≤ +65V; -40°C ≤ TA ≤ 120 140 +125°C Input Capacitance CIN RS+ and RS- input 3 pF GU MAX40056U 10 Nominal Gain GT MAX40056T 20 V/V GF MAX40056F 50 VCM = -0.3V, -40°C ≤ TA ≤ +85°C, -16mV 0.05 1.5 ≤ VSENSE ≤ +16mV, MAX40056F Gain Error GEF % VCM = 48V, -40°C ≤ TA ≤ +125°C, -16mV 0.05 0.5 ≤ VSENSE ≤ +16mV, MAX40056F Output Voltage Swing V High OH Sourcing 5mA; VOH = VDD - VOUT 45 100 mV Output Voltage Swing V Low OL Sinking 5mA; VOL = VOUT - GND 35 70 mV Output Short-Circuit I Current SC Shorted to either VDD or GND 20 mA
CURRENT SENSE AMPLIFIER / AC CHARACTERISTICS
Signal Bandwidth BW-3dB 50% of full-scale range 300 kHz 2V Output Slew Rate SR PP output square wave, centered at 1.5 V/µs 1.5V www.maximintegrated.com Maxim Integrated | 3 Document Outline General Description Applications Benefits and Features Typical Operating Characteristic and Simplified Block Diagram Absolute Maximum Ratings Package Information 8 µMAX 8 WLP Electrical Characteristics Typical Operating Characteristics Pin Configuration Pin Description Detailed Description Overview PWM Rejection Input Stage Low Input Offset Voltage and Low Gain Error CSA Output Voltage Reference Window Comparator and Hysteresis Applications Information Input Sense Voltage Range Choice of Reference Voltage Important Considerations Kelvin Connections Stray Inductance Typical Application Circuits Current Sensing in a 3-Phase Servo Motor Ordering Information Revision History
Electrical Characteristics
(VDD = 3.3V, VCM = 48V, VSENSE = 20mV, OUT loading = 10kΩ and 20pF to GND, COP loading = 5kΩ and 10pF to GND, TMIN = -40°C, TMAX = 125°C, (Note 1))
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY CHARACTERISTICS
Supply Voltage VDD Guaranteed by PSRR 2.7 5.5 V Supply Current IDD 6 9 mA Power-Up Time tPWR_UP Out settle within 1% 400 µs
CURRENT SENSE AMPLIFIER / DC CHARACTERISTICS
Input Protected CM V Range CM_P -5 +70 V Input Common Mode -40°C ≤ TA ≤ +85°C -0.3 +65 V V Range CM -40°C ≤ TA ≤ +85°C -0.1 +65 VSENSE = 0V (Note 2) 3 200 nA Input Bias Current IRS+ , IRS- VSENSE = 20mV 20 30 µA Input Leakage Current ILKG VDD = 0V, 0V ≤ VRS± ≤ 65V (Note 2) 3 200 nA TA = +25°C 5 20 Input Offset Voltage VOS μV -40°C ≤ TA ≤ +125°C 300 Input Offset Drift TCVOS 0.5 µV/°C Power Supply Rejection PSRR 2.7V ≤ V Ratio DD ≤ 5.5V 90 110 dB -0.3V ≤ VCM ≤ +65V; -40°C ≤ TA ≤ +85°C 100 140 Common Mode CMRR Rejection Ratio -0.1V ≤ VCM ≤ +65V; -40°C ≤ TA ≤ 120 140 +125°C Input Capacitance CIN RS+ and RS- input 3 pF GU MAX40056U 10 Nominal Gain GT MAX40056T 20 V/V GF MAX40056F 50 VCM = -0.3V, -40°C ≤ TA ≤ +85°C, -16mV 0.05 1.5 ≤ VSENSE ≤ +16mV, MAX40056F Gain Error GEF % VCM = 48V, -40°C ≤ TA ≤ +125°C, -16mV 0.05 0.5 ≤ VSENSE ≤ +16mV, MAX40056F Output Voltage Swing V High OH Sourcing 5mA; VOH = VDD - VOUT 45 100 mV Output Voltage Swing V Low OL Sinking 5mA; VOL = VOUT - GND 35 70 mV Output Short-Circuit I Current SC Shorted to either VDD or GND 20 mA
CURRENT SENSE AMPLIFIER / AC CHARACTERISTICS
Signal Bandwidth BW-3dB 50% of full-scale range 300 kHz 2V Output Slew Rate SR PP output square wave, centered at 1.5 V/µs 1.5V www.maximintegrated.com Maxim Integrated | 3 Document Outline General Description Applications Benefits and Features Typical Operating Characteristic and Simplified Block Diagram Absolute Maximum Ratings Package Information 8 µMAX 8 WLP Electrical Characteristics Typical Operating Characteristics Pin Configuration Pin Description Detailed Description Overview PWM Rejection Input Stage Low Input Offset Voltage and Low Gain Error CSA Output Voltage Reference Window Comparator and Hysteresis Applications Information Input Sense Voltage Range Choice of Reference Voltage Important Considerations Kelvin Connections Stray Inductance Typical Application Circuits Current Sensing in a 3-Phase Servo Motor Ordering Information Revision History
