L6390D datasheet(7/25 Pages) STMICROELECTRONICS

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DocID14493 Rev 11

7/25

L6390

Electrical characteristics

4.1

AC operation

Table 5. AC operation electrical characteristics (VCC = 15 V; TJ = +25 °C)

Symbol

Parameter

Test condition

Min.

Typ. Max. Unit

ton

1 vs. 11

3 vs. 15

High/low-side driver turn-on

propagation delay

VOUT = 0 V

VBOOT = VCC

CL = 1 nF

Vi = 0 to 3.3 V

See Figure 4 on page 12

125

200

toff

High/low-side driver turn-off

propagation delay

125

200

tsd

2 vs. 11, 15

Shutdown to high/low-side

driver propagation delay

125

200

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+.

200

250

Delay matching, HS and LS

turn-on/off

Deadtime setting range(1)

RDT = 0, CL = 1 nF

0.1

0.18

0.25

s

RDT = 37 k, CL = 1 nF,

CDT = 100 nF

0.48

0.6

0.72

s

RDT = 136 k, CL = 1 nF,

CDT = 100 nF

1.35

1.6

1.85

s

RDT = 260 k, CL = 1 nF,

CDT = 100 nF

2.6

3.0

3.4

s

MDT

Matching deadtime(2)

RDT = 0, CL = 1 nF

RDT = 37 k, CL = 1 nF,

CDT = 100 nF

120

RDT = 136 k, CL = 1 nF,

CDT = 100 nF

250

RDT = 260 k, CL = 1 nF,

CDT = 100 nF

400



11, 15

Rise time

CL = 1 nF

120

Fall time

CL = 1 nF

1. See Figure 3.

2. MDT = | DTLH - DTHL | see Figure 6 on page 13.

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