Table of Contents

1. Ordering Information ............................ 1

2. System Overview .............................. 2

2.1 Functional Block Diagrams ......................... 2

2.2 Current Sense Amplifier + Output Buffer ..................... 3

2.3 Sign Output

.............................. 4

2.4 Current Limit Comparator .......................... 4

2.5 FET Control (TS1110 Only) ......................... 4

2.6 VREF Divider .............................. 4

2.7 Selecting a Sense Resistor ......................... 5

2.7.1 RSENSE Voltage Loss .......................... 5

2.7.2 VOUT Swing vs. Desired VSENSE and Applied Supply Voltage at VDD.......... 5

2.7.3 Total Load Current Accuracy ........................ 5

2.7.4 Circuit Efficiency and Power Dissipation .................... 5

2.7.5 RSENSE Kelvin Connections ........................ 6

2.7.6 RSENSE Composition .......................... 6

2.7.7 Internal Noise Filter ........................... 6

2.7.8 PC Board Layout and Power-Supply Bypassing .................. 6

3. Electrical Characteristics ........................... 7

4. Typical Application Circuit .........................

16

5. Pin Descriptions .............................

17

6. Packaging ...............................

18

7. Top Marking...............................

19

Table of Contents

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