Dynamic characteristics, Switching characteristics, Capacitances – Philips BUK205-50Y User Manual

Page 5

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Philips Semiconductors

Product specification

TOPFET high side switch

BUK205-50Y

SMD version of BUK201-50Y

DYNAMIC CHARACTERISTICS

T

mb

= 25 ˚C; V

BG

= 13 V

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Inductive load turn-off

-V

LG

Negative load voltage

1

V

IG

= 0 V; I

L

= 7.5 A; t

p

= 300

µ

s

15

20

25

V

Short circuit load protection

2

V

IG

= 5 V; R

L

10 m

t

d sc

Response time

-

90

-

µ

s

I

L

Load current prior to turn-off

t < t

d sc

-

42

-

A

Overload protection

3

I

L(lim)

Load current limiting

V

BL

= 9 V; t

p

= 300

µ

s

28

40

52

A

SWITCHING CHARACTERISTICS

T

mb

= 25 ˚C, V

BG

= 13 V, for resistive load R

L

= 13

.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

During turn-on

to V

IG

= 5 V

t

d on

Delay time

to 10% V

L

-

16

-

µ

s

dV/dt

on

Rate of rise of load voltage

-

1

2.5

V/

µ

s

t

on

Total switching time

to 90% V

L

-

40

-

µ

s

During turn-off

to V

IG

= 0 V

t

d off

Delay time

to 90% V

L

-

30

-

µ

s

dV/dt

off

Rate of fall of load voltage

-

1.2

2.5

V/

µ

s

t

off

Total switching time

to 10% V

L

-

50

-

µ

s

CAPACITANCES

T

mb

= 25 ˚C; f = 1 MHz; V

IG

= 0 V

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

C

ig

Input capacitance

V

BG

= 13 V

-

15

20

pF

C

bl

Output capacitance

V

BL

= V

BG

= 13 V

-

415

580

pF

C

sg

Status capacitance

V

SG

= 5 V

-

11

15

pF

1 For a high side switch, the load pin voltage goes negative with respect to ground during the turn-off of an inductive load. This negative voltage

is clamped by the device.

2 The load current is self-limited during the response time for short circuit load protection. Response time is measured from when input goes

high.

3 If the load resistance is low, but not a complete short circuit, such that the on-state voltage remains less than V

BL(TO)

, the device remains in

current limiting until the overtemperature protection operates.

July 1996

5

Rev 1.000

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