L99DZ320 datasheet(25/146 Pages) STMICROELECTRONICS

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2.4.13

H-bridge driver

The voltages are referred to power ground and currents are assumed positive, when the current flows into the pin.

6 V < VS < 28 V, 6 V < VSREG < 28 V, TJ = -40 °C to 150 °C, unless otherwise specified.

Table 19. H-bridge driver

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Item

IGHx(Ch) Average charge current (charge stage)

TJ = 25°C

0.1

0.3

0.75

A.069

RGHx

On-resistance

(discharge stage)

VSHx = 0 V, IGHx = 50 mA, TJ = 25°C

Ω

A.070

VSHx = 0 V, IGHx = 50 mA, TJ = 125°C

Ω

A.071

VGHHx Gate on voltage

VS = SH = 6 V; ICP = 15 mA

VSHx + 6

A.072

VS = SH = 12 V; ICP = 15 mA

VSHx + 8 VSHx + 10 VSHx + 11.5

A.073

RGSHx Passive gate clamp resistance

Measurement of the slope between

VGHx = 6 V and VGHx = 3 V

kΩ

A.074

Drivers for external low-side Power MOSFET

IGLx(Ch) Average charge current (charge stage)

TJ = 25°C

0.1

0.3

0.75

A.075

RGLx

On-resistance (discharge stage)

VSLx = 0 V, IGLx = 50 mA, TJ = 25°C

Ω

A.076

VSLx = 0 V, IGLx = 50 mA, TJ = 125°C

Ω

A.077

VGHLx

Gate on voltage

VS = 6 V; ICP = 15 mA

VSLx + 6

A.078

VS = 12 V; ICP = 15 mA

VSLx + 8 VSLx + 10 VSLx + 11.5

A.079

RGSLx

Passive gate clamp resistance

kΩ

A.080

2.4.14

Gate drivers for the external Power MOSFET switching times

The voltages are referred to power ground and currents are assumed positive, when the current flows into the pin.

6 V < VS < 28 V; 6 V < VSREG < 28 V; TJ = -40 °C to 150 °C, unless otherwise specified.

Table 20. Gate drivers for external Power MOSFET switching times

Symbol

Parameter

Test condition

Min.

Typ.

Max. Unit Item

TG(HL)xHL

Propagation delay time high to

low (switch mode)(1)

VS = 13.5 V, VSHx = 0,

RG = 0 Ω, CG = 2.7 nF

1.5

µs

A.081

TG(HL)xLH

Propagation delay time low to

high (switch mode)(1)

VS = 13.5 V, VSLx = 0,

RG = 0 Ω, CG = 2.7 nF

1.5

µs

A.082

IGHxrmax

Maximum source current

(current mode)

VS = 13.5 V, VSHx = 0, VGHx = 1 V,

SLEW<4:0> = 1FH

mA A.083

IGHxfmax

Maximum sink current (current

mode)

VS = 13.5 V, VSHx = 0, VGHx = 2 V,

SLEW<4:0> = 1FH

mA A.084

dIIGHxr

Source current accuracy

VS = 13.5 V, VSHx = 0 V, VGHx = 1 V

See

Figure 7. IGHxr

range (a)

A.085

dIIGHxf

Sink current accuracy

VS = 13.5 V, VSHx = 0 V, VGHx = 2 V

See Figure 8.

IGHxf range (b)

A.086

VDSHxrSW(2)

Switching voltage

(VS-VSH) between current mode

and switch mode (rising)

VS = 13.5 V

0.4

1.5

2.6

A.087

VDSHxfSW(2) Switching voltage

VS = 13.5 V

0.4

1.5

2.6

A.088

L99DZ320

Electrical specifications

DS14235 - Rev 5

page 25/146

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