L99ASC03GTR datasheet, PDF - EEWORLD Datasheet

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L99ASC03GTR: DescriptionIC PREDRIVER 3PHASE 48TQFP; Categorysemiconductor Power management; File Size840KB，70 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/; Environmental Compliance

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L99ASC03GTR Overview

IC PREDRIVER 3PHASE 48TQFP

L99ASC03GTR Parametric

Parameter Name	Attribute value
Motor Type - Stepper	-
Motor Type – AC, DC	Brushless DC (BLDC)
Function	Controller - commutation, direction management
Output configuration	Front Driver - Half-Bridge (3)
interface	SPI
technology	Power MOSFET
Step resolution	-
application	Automotive grade
Current - Output	-
Voltage - Power	6 V ~ 28 V
Voltage - Load	-
Operating temperature	-40°C ~ 150°C（TJ）
Installation type	surface mount
Package/casing	48-TQFP Exposed Pad
Supplier device packaging	48-TQFP-EP（7x7）

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L99ASC03G

Brushless / sensorless 3-phase motor pre-driver for automotive

applications

Datasheet

production data



Drain-source monitoring and open-load

detection



TQFP48 7 x 7 x 1 mm with Exposed Pad

(4.5 x 4.5 mm) package

Applications

TQFP48-EP

Mechatronic three-phase motor application such

as engine cooling fans, fuel pumps, water pumps,

oil pumps

Features



AEC-Q100 qualified



5 V low-drop voltage regulator (200 mA

continuous mode)



Very low current consumption in standby mode

(typ. 15 µA)



ST SPI interface for control and diagnostics



Window watchdog and fail-safe functionality



Two separate power supply pins



Three half-bridge drivers to control external

MOSFETs (configurable by SPI)



Full drive of external MOSFETs down to 6 V

input voltage



Input pin for each gate driver (with cross-

current protection)



Two-stage charge pump supporting 100% duty

cycle



PWM operation up to 80 kHz (not restricted)



Current-sense amplifier (configurable by SPI)



Disable input to turn off gate driver outputs



Analog multiplexer output to monitor external

power supply voltages and internal junction

temperature



Advanced BEMF detection IP



Overcurrent protection (programmable)

Description

The L99ASC03G is a multifunctional system IC

designed for three-phase motor control

applications.

The device features a voltage regulator to supply

an external microcontroller and an operation

amplifier for motor current sensing. It is designed

to control six external N-channel MOSFETs in

bridge configuration to drive three-phase motors

in automotive applications. All gate driver outputs

are controlled by separate inputs.

The integrated Serial Peripheral Interface (SPI)

makes it possible to adjust device parameters,

control all operating modes and read out

diagnostic information.

Table 1. Device summary

Order codes

Package

Tube

TQFP48-EP

L99ASC03G

Tape and real

L99ASC03GTR

July 2016

This is information on a product in full production.

DocID029080 Rev 2

1/70

www.st.com

Contents

L99ASC03G

Contents

Block diagram and pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1

Supply pins (V

, V

SREG

, V

SMS

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1.1

2.1.2

2.1.3

, V

SREG

and V

SMS

overvoltage warning . . . . . . . . . . . . . . . . . . . . . . 10

, V

SREG

and V

SMS

overvoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

, V

SREG

and V

SMS

undervoltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2

2.3

2.4

2.5

(5V) voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

NRES reset output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Device operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.5.1

2.5.2

2.5.3

2.5.4

2.5.5

2.5.6

Active Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Flash Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

VDD Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

VBAT Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Device mode state diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.6

2.7

2.8

DIS pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

INH pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Thermal warning and thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.8.1

2.8.2

Normal mode: TEMPM = ‘0’ (TW1, TSD1, TSD2) . . . . . . . . . . . . . . . . . 18

Warning mode: TEMP = ‘1’ (TW1, TW2, TSD2) . . . . . . . . . . . . . . . . . . 18

2.9

2.10

2.11

2.12

Wake-up events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Charge pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Gate drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Drain-source monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.12.1

2.12.2

Drain-source monitoring in ON state (short-circuit detection) . . . . . . . . 22

Drain-source monitoring in OFF state (open-load / short-circuit detection)

2.13

2.14

2.15

Current-sense amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Overcurrent detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

BEMF module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.15.1

BEMF comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2/70

DocID029080 Rev 2

L99ASC03G

2.15.2

2.15.3

Contents

BEMF comparator sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

BEMF commutation driving mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.16

2.17

2.18

2.19

Digital multiplexer (DOUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Analog multiplexer (AOUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Serial peripheral interface (ST SPI standard) . . . . . . . . . . . . . . . . . . . . . . 29

Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.1

3.2

3.3

3.4

3.5

3.6

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

SPI electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

ST-SPI Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

4.1

Physical layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

4.1.1

4.1.2

Signal description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Clock and data characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

SDI frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

SDO frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Device information registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

SPI Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Device Control Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Device Control Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Device Control Register 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Device Control Register 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Device Control Register 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Device Control Register 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Device Control Register 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Device Control Register 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Device Status Registers 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Device Status Registers 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

DocID029080 Rev 2

3/70

4.2

Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

4.2.1

4.2.2

4.3

4.4

Addresses and data definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

4.3.1

4.4.1

4.4.2

4.4.3

4.4.4

4.4.5

4.4.6

4.4.7

4.4.8

4.4.9

4.4.10

4.4.11

SPI registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

L99ASC03G

List of tables

Table 1.

Table 2.

Table 3.

Table 4.

Table 5.

Table 6.

Table 7.

Table 8.

Table 9.

Table 10.

Table 11.

Table 12.

Table 13.

Table 14.

Table 15.

Table 16.

Table 17.

Table 18.

Table 19.

Table 20.

Table 21.

Table 22.

Table 23.

Table 24.

Table 25.

Table 26.

Table 27.

Table 28.

Table 29.

Table 30.

Table 31.

Table 32.

Table 33.

Table 34.

Table 35.

Table 36.

Table 37.

Table 38.

Table 39.

Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Pin definition and function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Wake-up events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Diagnostics overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Forced V

BAT

standby mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

ESD protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Operation junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Temperature warning and thermal shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Supply and supply monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Power-on RESET (V

SREG

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Voltage regulator V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

NRES reset output (VDD supervision), NINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Charge pump output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Gate driver for external MOSFET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Drain source monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

, V

SREG

, V

SMS

and T

monitoring (AOUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Current-sense amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Overcurrent detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

BEMF detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

I/Os; IHx, ILx, DIS, BC, BEMF, DOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

INH input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

CSN input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

SCK, SDI input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

SDO output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

SPI timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

SPI pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Operation codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Device application access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Device information read access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Address range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Device information read access operation code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Device information registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Complete device SPI register table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

TQFP48-EP mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

DocID029080 Rev 2

5/70

L99ASC03GTR Related Products

	L99ASC03GTR	L99ASC03G
Description	IC PREDRIVER 3PHASE 48TQFP	Brushless/sensorless 3-phase motor predriver for automotive applications

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