L99ASC03 datasheet(37/73 Pages) STMICROELECTRONICS

Part #	L99ASC03

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

PDF	73 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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37 / 73 page

DocID023504 Rev 7

37/73

L99ASC03

Electrical specifications

Figure 17. Watchdog early, late and safe window

Table 17. Charge pump output

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

VCP

Charge pump output voltage

VS =6 V; ICP =-20 mA;

CCPx = 220 nF; CCP =1 µF

VS +7.7

VS =6 V; ICP = 20 mA;

CCPx = 220 nF; CCP =1 µF;

-40 °C < Tj <25 °C

VS + 8.3

VS =12V; ICP =0 mA;

CCPx = 220 nF; CCP =1 µF

VS + 11

VS + 13

VS + 16.5

ICP

Charge pump output current

VS =12V; VCP =VS +10V;

CCPx = 220 nF; CCP =1 µF

VCPLOW

Charge pump low voltage

threshold

VS + 5.6 VS + 6.0 VS + 6.75

fCP

Clock frequency (internal

oscillator)

140

200

260

kHz

tfCP

Charge pump low filter time

µs

Table 18. Gate driver for external MOSFET

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

High-side gate drivers DC parameter

IGHx(on)

Turn-on maximum peak

current (SOURCE stage)

Tj =25°C; PCSO = 1111

-250

Turn-on minimum peak

current (SOURCE stage)

Tj = 25°C; PCSO = 0001

-20

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