L6491D datasheet(8/24 Pages) STMICROELECTRONICS

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Electrical characteristics

L6491

8/24

DocID024832 Rev 1

Electrical characteristics

5.1

AC operation

Table 7. AC operation electrical characteristics (VCC = 15 V; PGND = SGND; TJ = +25 °C)

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

ton

1 vs. 8

3 vs 13

High/low-side driver turn-on

propagation delay

OUT = 0 V

BOOT = VCC

CL = 1 nF

Vi = 0 to 3.3 V

see Figure 3

120

toff

High/low-side driver turn-off

propagation delay

120

tsd

2 vs.

8, 13

Shutdown to high/low-side

driver propagation delay

120

tisd

Comparator triggering to

high/low-side driver turn-off

propagation delay

Measured applying a voltage step from

0 V to 3.3 V to pin CP+; CP- = 0.5 V

175

220

Delay matching, HS and LS

turn-on/off(1)

Deadtime setting range

see Figure 4

RDT = 0 , CL = 1 nF

0.12 0.18 0.24

µs

RDT = 100 k, CL = 1 nF, CDT = 100 nF

1.2

1.4

1.6

µs

RDT = 200 k, CL = 1 nF, CDT = 100 nF

2.2

2.6

µs

MDT

Matching deadtime(2)

RDT = 0 , CL = 1 nF

RDT = 100 k, CL = 1 nF, CDT = 100 nF

165

RDT = 200 k, CL = 1 nF, CDT = 100 nF

260

8,13

Rise time

CL = 1 nF

Fall time

CL = 1 nF

1. MT = max. (|ton(LVG) - toff(LVG)|, |ton(HVG) - toff(HVG)|, |toff(LVG) - ton(HVG)|, |toff(HVG) - ton(LVG)|).

2. MDT = | DTLH - DTHL | (see Figure 5 on page 14).

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