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Overload protection characteristics, Switching characteristics, Capacitances – Philips BUK214-50Y User Manual

Page 6

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Philips Semiconductors

Product specification

TOPFET high side switch

BUK214-50Y

SMD version of BUK209-50Y

OVERLOAD PROTECTION CHARACTERISTICS

5.5 V

V

BG

35 V, limits are at -40˚C

T

mb

150˚C and typicals at T

mb

= 25 ˚C unless otherwise stated.

Refer to

TRUTH TABLE

.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Overload protection

V

BL

= V

BG

I

L(lim)

Load current limiting

V

BG

9 V

20

30

40

A

Short circuit load protection

V

BL(TO)

Battery load threshold voltage

1

V

BG

= 16 V

8

10

12

V

V

BG

= 35 V

15

20

25

V

t

d sc

Response time

2

V

BL

> V

BL(TO)

-

180

250

µ

s

Overtemperature protection

T

j(TO)

Threshold junction

150

170

190

˚C

temperature

3

T

j(TO)

Hysteresis

-

10

-

˚C

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

from input going high

t

d on

Delay time

to 10% V

L

-

45

70

µ

s

dV/dt

on

Rate of rise of load voltage

30% to 70% V

L

-

0.4

1.0

V/

µ

s

t

on

Total switching time

to 90% V

L

-

110

180

µ

s

During turn-off

from input going low

t

d off

Delay time

to 90% V

L

-

50

80

µ

s

dV/dt

off

Rate of fall of load voltage

70% to 30% V

L

-

0.7

1.1

V/

µ

s

t

off

Total switching time

to 10% V

L

-

75

120

µ

s

CAPACITANCES

T

mb

= 25 ˚C; f = 1 MHz; V

IG

= 0 V. designed in parameters.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

C

ig

Input capacitance

V

BG

= 13 V

-

15

20

pF

C

bl

Output capacitance

V

BL

= 13 V

-

200

300

pF

C

sg

Status capacitance

V

SG

= 5 V

-

11

15

pF

1 The battery to load threshold voltage for short circuit protection is proportional to the battery supply voltage. A graph showing V

BL(TO)

versus

V

BG

will be provided in the product specification. After short circuit protection has operated, the input voltage must be toggled low for the

switch to resume normal operation.

2 Measured from when the input goes high.

3 After cooling below the reset temperature the switch will resume normal operation.

September 2002

6

Rev 2.000

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