STDRIVE102BHTR datasheet(52/56 Pages) STMICROELECTRONICS

52 / 56 page

Contents

Block diagram .....................................................................3

Device ratings .....................................................................4

2.1

Absolute maximum ratings....................................................... 4

2.2

Recommended operating conditions .............................................. 5

2.3

Thermal data .................................................................. 7

2.4

Electrical sensitivity characteristics ................................................ 7

Electrical characteristics...........................................................8

Pin description ...................................................................11

4.1

STDRIVE102BH pin description ................................................. 11

4.2

STDRIVE102H pin description .................................................. 13

Device description................................................................15

5.1

Power management section .................................................... 15

5.1.1

12 V LDO linear regulator ................................................. 16

5.1.2

3.3 V LDO linear regulator................................................. 17

5.1.3

Charge pump .......................................................... 18

5.2

Gate drivers .................................................................. 19

5.2.1

Driving current management ............................................... 21

5.2.2

Propagation delays ...................................................... 27

5.2.3

VDS monitoring ......................................................... 28

5.3

Analog Front-End (AFE)........................................................ 30

5.4

Soft turn-off .................................................................. 32

5.5

Thermal shutdown............................................................. 34

5.6

Protections management summary .............................................. 35

5.6.1

Automatic re-arm using the nFAULT pin ...................................... 36

5.6.2

FLAG pin (STDRIVE102BH only) ........................................... 37

5.7

Device power-up .............................................................. 37

5.8

Standby and wake-up .......................................................... 38

Application examples .............................................................39

6.1

3-phase brushless motor application with triple shunt current sensing based on

STDRIVE102BH .............................................................. 39

6.2

3-phase brushless motor application with single shunt current sensing based on

STDRIVE102H ............................................................... 40

Layout recommendations and guidelines .........................................42

7.1

Power stage layout ............................................................ 42

7.2

Grounding ................................................................... 42

STDRIVE102BH, STDRIVE102H

Contents

DS14545 - Rev 1

page 52/56

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