TS1109-20ITD833 Silicon Labs

TS1109 Data Sheet TS1109 Bidirectional Current-Sense Amplifier with Buffered Bipo- KEY FEATURES lar Output Low Supply Current The TS1109 incorporates a bidirectional current-sense amplifier plus a buffered bipolar Current Sense Amplifier: 0.68 A output with an adjustable bias. The internal configuration of the TS1109 high-side cur- I : 0.76 A VDD rent-sense amplifier is a variation of the TS1101 bidirectional current-sense amplifier, High Side Bidirectional Current Sense consuming 0.68 A(typ) and 1.2 A(max). The current-sense amplifiers buffered output Amplifier consumes only 0.76 A(typ) and 1.3 A(max) of supply current. With an input offset volt- Wide CSA Input Common Mode Range: +2 age of 150 V(max) and a gain error of 1%(max), the TS1109 is optimized for high preci- V to +27 V sion current measurements Low CSA Input Offset Voltage: 150 Applications V(max) Low Gain Error: 1%(max) Power Management Systems Two Gain Options Available: Portable/Battery-Powered Systems Gain = 20 V/V : TS1109-20 Smart Chargers Gain = 200 V/V : TS1109-200 Battery Monitoring 8-Pin TDFN Packaging (3 mm x 3 mm) Overcurrent and Undercurrent Detection Remote Sensing Industrial Controls silabs.com Smart. Connected. Energy-friendly. Rev. 1.0 TS1109 Data Sheet Ordering Information 1. Ordering Information Table 1.1. Ordering Part Numbers Ordering Part Number Description Gain V/V TS1109-20IDT833 Bidirectional current sense amplifier with buffered bipolar output 20 TS1109-200 IDT833 Bidirectional current sense amplifier with buffered bipolar output 200 Note: Adding the suffix T to the part number (e.g. TS1109-200IDT833T) denotes tape and reel. silabs.com Smart. Connected. Energy-friendly. Rev. 1.0 1