Daim Ntawv Qhia Tus Neeg Siv

ManualsBrandsSILICON LAB ManualsOtherSILICON LABS TS 1105 Kev nkag siab tam sim no Ampua neej nyob

TS1105/06/09 Current Sense Amplifier

EVB User's Guide

The TS1105, TS1106, and TS1109 combine a high-side current sense amplifier (CSA)

with a buffered output featuring an adjustable bias. The TS1109 bidirectional CSA buf-

fered output uses a bipolar scheme with respect to the bias voltage, while the TS1106

bidirectional CSA buffered output uses a unipolar scheme.

The TS1105/06/09 CSA requires a very low 0.68 µA supply current, while the CSA buf-

fered output requires a very low nominal supply current of 0.76 µA. These CSAs are de-

signed for high precision current measurements as the TS1109 combines a 1% gain er-

ror(MAX) with a 150 µV VOS(MAX) while the TS1105/06 combine a 0.6% gain er-

ror(MAX) with a 100 µV VOS(MAX) . The inverting terminal of the CSA output buffer,

FILT, is also made accessible so that a RC Filter can be connected to reduce noise.

The TS1105/06/09 is fully specified to operate over the –40 °C to +85 °C temperature

range and is available in a low-profile, thermally-enhanced, 8-pin 3 x 3 mm TDFN pack-

age with an exposed back-side paddle.

KEY FEATURES

• R

SENSE

: 50 mΩ ± 0.5%

• Adjustable Bias for CSA Buffer

• Compatible for Both Gain Options

• 20 V/V

• 200 V/V

ORDERING INFORMATION

• TS1105-20DB

• TS1105-200DB

• TS1106-20DB

• TS1106-200DB

• TS1109-20DB

• TS1109-200DB

silabs.com | Smart. Connected. Energy-friendly. Rev. 1.0

Downloaded from Arrow.com.

Summary of content (5 pages)

PAGE 1
TS1105/06/09 Current Sense Amplifier EVB User's Guide The TS1105, TS1106, and TS1109 combine a high-side current sense amplifier (CSA) with a buffered output featuring an adjustable bias. The TS1109 bidirectional CSA buffered output uses a bipolar scheme with respect to the bias voltage, while the TS1106 bidirectional CSA buffered output uses a unipolar scheme. The TS1105/06/09 CSA requires a very low 0.68 µA supply current, while the CSA buffered output requires a very low nominal supply current of 0.
PAGE 2
TS1105/06/09 Current Sense Amplifier EVB User's Guide Description 1. Description The TS1105/06/09 Evaluation Board is intended for evaluation of the current sense amplifier plus the buffered output with adjustable bias. The evaluation board includes a variable reference scheme so that the bias voltage of the CSA buffered output can be adjusted with respect to the VDD voltage. The jumpers, JP2 and JP3, can be connected so that the included potentiometer can be used to adjust the bias voltage.
PAGE 3
TS1105/06/09 Current Sense Amplifier EVB User's Guide Quick Start Procedure 2. Quick Start Procedure Required Equipment • 3 V Power Supply or 3 V Battery • 2 Digital Multimeters • 1 ammeter • 1 voltmeter • Potentiometer To use the TS1105/06/09 evaluation board, perform the following steps: 1. Configure JP3 so that the Jumper Shunt is connecting VDD to EXT_REF_1, and configure JP2 so that the jumper shunt is connecting VBIAS to EXT_REF_2. 2. Connect the 3 V power source to RS+ and VDD. 3.
PAGE 4
TS1105/06/09 Current Sense Amplifier EVB User's Guide Quick Start Procedure Figure 2.1. TS1105/06/09DB Circuit Schematic silabs.com | Smart. Connected. Energy-friendly. Downloaded from Arrow.com. Rev. 1.
PAGE 5
Smart. Connected. Energy-Friendly Products Quality Support and Community www.silabs.com/products www.silabs.com/quality community.silabs.com Disclaimer Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or intending to use the Silicon Laboratories products.