INA169NA/250 CURRENT SENSE AMPLIFIER

INA169NA/250 CURRENT SENSE AMPLIFIER

1 FEATURES

1• COMPLETE UNIPOLAR HIGH-SIDE CURRENT MEASUREMENT CIRCUIT
• WIDE SUPPLY AND COMMON-MODE RANGE
• INA169: 2.7 V TO 60 V
• INDEPENDENT SUPPLY AND INPUT COMMON-MODE VOLTAGES
• SINGLE RESISTOR GAIN SET
• LOW QUIESCENT CURRENT: 60 ΜA (TYPICAL)
• 5-PIN, SOT-23 PACKAGES

2 APPLICATIONS
• CURRENT SHUNT MEASUREMENT:
– AUTOMOTIVE, TELEPHONE, COMPUTERS
• PORTABLE AND BATTERY-BACKUP SYSTEMS
• BATTERY CHARGERS
• POWER MANAGEMENT
• CELL PHONES
• PRECISION CURRENT SOURCE

3 DESCRIPTION
THE INA169 ARE HIGH-SIDE, UNIPOLAR, CURRENT SHUNT MONITORS. WIDE INPUT COMMON-MODE VOLTAGE RANGE, HIGH-SPEED, LOW QUIESCENT CURRENT, AND TINY SOT-23 PACKAGING ENABLE USE IN A VARIETY OF APPLICATIONS. INPUT COMMON-MODE AND POWER-SUPPLY VOLTAGES ARE INDEPENDENT AND CAN RANGE FROM AND 2.7 V TO 60 V FOR THE INA169. QUIESCENT CURRENT IS ONLY 60 ΜA, WHICH PERMITS CONNECTING THE POWER SUPPLY TO EITHER SIDE OF THE CURRENT MEASUREMENT SHUNT WITH MINIMAL ERROR. THE DEVICE CONVERTS A DIFFERENTIAL INPUT VOLTAGE TO A CURRENT OUTPUT. THIS CURRENT IS CONVERTED BACK TO A VOLTAGE WITH AN EXTERNAL LOAD RESISTOR THAT SETS ANY GAIN FROM 1 TO OVER 100. ALTHOUGH DESIGNED FOR CURRENT SHUNT MEASUREMENT, THE CIRCUIT INVITES CREATIVE APPLICATIONS IN MEASUREMENT AND LEVEL SHIFTING. BOTH THE NA169 ARE AVAILABLE IN 5-PIN SOT-23 PACKAGES. THE INA169 IS SPECIFIED FROM –40°C TO +85°C TEMPERATURE RANGE.

MANUFACTURER: TEXAS INSTRUMENTS 
PRODUCT CATEGORY: CURRENT & POWER MONITORS & REGULATORS 
PRODUCT: CURRENT MONITORS 
SENSING METHOD: HIGH SIDE 
SUPPLY VOLTAGE - MAX: 60 V 
SUPPLY VOLTAGE - MIN: 2.7 V 
OPERATING SUPPLY CURRENT: 125 UA 
ACCURACY: 0.5 % 
MINIMUM OPERATING TEMPERATURE: - 40 C 
MAXIMUM OPERATING TEMPERATURE: + 85 C 
MOUNTING STYLE: SMD/SMT 
PACKAGE/CASE: SOT-23-5 
BRAND: TEXAS INSTRUMENTS 
COUNTRY OF ORIGIN: MY 
DEVELOPMENT KIT: BQ24610EVM-603 
INPUT VOLTAGE RANGE: 2.7 V TO 60 V 
MOISTURE SENSITIVE: YES 
PRODUCT TYPE: CURRENT & POWER MONITORS & REGULATORS 
SERIES: INA169 
SUBCATEGORY: PMIC - POWER MANAGEMENT ICS