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TS1100-50EG5

TS1100-50EG5

  • 厂商:

    SILABS(芯科科技)

  • 封装:

    SOT23-5

  • 描述:

    IC CURR SENSE 1 CIRCUIT SOT23-5

  • 数据手册
  • 价格&库存
TS1100-50EG5 数据手册
 TS1100 Current-Sense Amplifier Demo Board FEATURES    RSENSE: 50mΩ ± 1% Fully Assembled and Tested 2in x 2in 2-layer circuit board COMPONENT LIST DESIGNATION C1 QTY 1 C2 1 R1 U1 1 1 VBATT, VOUT, LOAD 3 DESCRIPTION 0.1µF ±10% capacitor (0805) 47nF ±10% capacitor (0805) 50mΩ ± 1% (0805) TS1100-25DB/ TS1100-50DB/ TS1100-100DB/ TS1100-200DB Test points DESCRIPTION The demo board for the TS1100 is a completely assembled and tested circuit board that can be used for evaluating the current-sense amplifier for all (4) gain options; i.e., 25V/V, 50V/V, 100V/V, and 200V/V. The board is configured with an RSENSE =R1=50mΩ resistor. The board has a dedicated RS+=VBATT, RS-=LOAD, and output voltage OUT=VOUT test points. For additional information, refer to the TS1100 product datasheet. All TS1100s are available in a PCB-space saving 5lead SOT23 surface-mount package. Product data sheets and additional documentation can be found at www.silabs.com. ORDERING INFORMATION Order Number TS1100-25DB TS1100-50DB TS1100-100DB TS1100-200DB Description TS1100-XXX Demo Board DESCRIPTION Figure 1. TS1100 current-sense amplifier circuit Page 1 © 2014 Silicon Laboratories, Inc. All rights reserved. TS1100 Current-Sense Amplifier Demo Board The demo board includes an on-board 0.1µF decoupling capacitor at the VBATT input pin and a 47nF capacitor at the VOUT output pin. Depending on the load current desired, an external resistor or active load is to be connected to the LOAD pin. QUICK START PROCEDURE Required Equipment TS1100 demo board  A DC Power Supply, an HP Model HP6624A or equivalent  Two digital voltmeters  Load resistor or an active load (value varies depending on ILOAD desired) Signal Eval board VBATT RS+ LOAD RSVOUT OUT GND GND Table 1. Demo board test points MAX VSENSE (mV) 25 6 1600 3.75 2 80 50 6 800 7.5 2 40 100 6 400 15 2 20 200 6 200 30 2 10 Table 2. Demo board test set-up per gain setting VBATT (V) ILOAD (mA) RLOAD (Ω) 5) Based on the selected gain option of the current sense amplifier, select the load resistor or an active load according to Table 2. Connect one end of this resistor or active load to the pad labeled LOAD and the other end to the adjacent pad labeled GND. 6) Turn on the power supply and observe the output voltage at VOUT. The expression for the TS1100’s output voltage is given by:  GAIN (V/V) negative terminal to the adjacent test point labeled GND. VOUT (V) VOUT = ILOAD x 50mΩ x ROUT/R1 where the TS1100’s internal ROUT and R1 resistor values are listed in Table 3. GAIN(V/V) R1 (Ω) ROUT (Ω) 25 400 10k 50 200 10k 100 100 10k 200 100 20k Table 3. TS1100’s Internal Gain Setting Resistors (typical values) 7) The TS1100’s actual output voltage VOUT will depend on the TS1100’s actual offset voltage VOS, its gain error GE, sense resistor (RSENSE) tolerance of ±1%, and the load resistor tolerance/active load accuracy. To evaluate the TS1100 current-sense amplifier circuit, the following steps are to be performed: 1) Before connecting the DC power supply to the demo board, turn on the power supply, set the DC voltage to 6V, set its short circuit current limit to 10% higher than the maximum load current in the application, and then turn it off. 2) Connect the DC power supply positive terminal to the pad labeled VBATT and its negative terminal to the adjacent pad labeled GND. 3) Connect a digital voltmeter to the test points labeled TP+ and TP- to measure VSENSE. 4) Connect the positive terminal of a second digital voltmeter to the test point labeled VOUT and the Page 2 Silicon Laboratories, Inc. 400 West Cesar Chavez, Austin, TX 78701 +1 (512) 416-8500 ▪ www.silabs.com TS1100-EVB Rev. 1.0 TS1100 Current-Sense Amplifier Demo Board Figure 2. Top Layer Component View Figure 3. Top Layer Component View #2 Figure 4. Bottom Layer (GND) Figure 5. Bottom Layer (GND) #2 Silicon Laboratories, Inc. 400 West Cesar Chavez, Austin, TX 78701 +1 (512) 416-8500 ▪ www.silabs.com Page 3 TS1100-EVB Rev. 1.0
TS1100-50EG5 价格&库存

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