SIL25C Series | 25 A DC-DC Converter

C Class Non-Isolated

2

Characteristic

Symbol

Min

Typ

Max

Units

Notes and Conditions

Input voltage - turn on

Vin (on)

8.5

10.0

10.2

V DC

Input voltage - turn off

Vin (off)

8.5

9.5

10.0

V DC

Turn on delay - enabled,

Tdelay

30

msec

With the Remote ON/OFF signal

then power applied

(power)

asserted, this is the time from

when the input voltage reaches

the minimum specified operating

voltage until the POWER GOOD

is asserted high

Turn on delay - power

Tdelay

20

msec

Vin = Vin (nom), then Remote

applied, then Remote ON/OFF

(Remote ON/OFF)

ON/OFF asserted. This is the

asserted

time taken until the POWER

GOOD is asserted high

Output to Power Good

Tdelay

20

msec

Output voltage in full regulation

delay

to POWER GOOD asserted high

Rise time

Trise

8

msec

From 10% to 90%; full resistive

load, 2 x 680µF external

capacitance

All specifications are typical at nominal input Vin = 12V, full load under any resistive load combination at 25˚C unless otherwise stated.

Characteristic

Symbol

Min

Typ

Max

Units

Notes and Conditions

Input voltage - operating

Vin (oper)

10.2

12.0

13.8

V DC

Input current - no load

lin

280

400

mADC

Vin (min) - Vin (max), enabled

Input current - Quiescent

lin (off)

30

40

mADC

Converter disabled

Input voltage variation

dv/dt

1.0

V/ms

Input Characteristics

Turn On/Off

Absolute Maximum Ratings

File Name: lf_sil25c_12_neg.pdf Rev (02): 22 Dec 2005

Characteristic

Symbol

Min

Typ

Max

Units

Notes and Conditions

Input voltage - continuous

Vin (cont)

-0.3

13.8

V DC

Vin(+) - Vin(-)

Operating temperature

Top

-40

80

ºC

Measured at thermal reference

points, see Note 1. Higher

ambient operation possible with

forced air cooling. See de-rating

curves

Power Good pull-up voltage

15

V

Storage temperature

Tstorage

-40

125

ºC

Output current

Iout

0

25

A