L6391 datasheet(8/21 Pages) STMICROELECTRONICS

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Electrical characteristics

L6391

8/21

Doc ID 17892 Rev 1

Electrical characteristics

5.1

AC operation

Table 7.

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

Symbol

Parameter

Test condition

Min

Typ

Max Unit

ton

1 vs 10

3 vs 13

High/low side driver turn-on

propagation delay

Vout = 0 V

Vboot = Vcc

CL = 1 nF

Vi = 0 to 3.3 V

See Figure 3.

125

200

toff

High/low side driver turn-off

propagation delay

125

200

tsd

2 vs

10, 13

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+; CP-=0.5 V

200

250

Delay matching, HS and LS

turn-on/off

Dead time setting range (1)

RDT = 0Ω, CL = 1 nF

0.1

0.18

0.25

µs

RDT = 37kΩ, CL = 1 nF, CDT = 100 nF

0.48

0.6

0.72

µs

RDT = 136kΩ, CL = 1 nF, CDT = 100 nF

1.35

1.6

1.85

µs

RDT = 260kΩ, CL = 1 nF, CDT = 100 nF

2.6

3.0

3.4

µs

MDT

Matching dead time (2)

RDT = 0Ω, CL = 1 nF

RDT = 37kΩ, CL = 1 nF, CDT = 100 nF

120

RDT = 136kΩ, CL = 1 nF, CDT = 100 nF

250

RDT = 260kΩ, CL = 1 nF, CDT = 100 nF

400

10,13

Rise time

CL = 1 nF

120

Fall time

CL = 1 nF

See Figure 4 on page 9

MDT = | DTLH - DTHL | see Figure 5 on page 12

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