LTC4274A/LTC4274C

29

4274acfc

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-

tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

REVISION HISTORY

REV

DATE

DESCRIPTION

PAGE NUMBER

A

9/11

Changed GATE typ voltage to 12V.

3, 15, 21

4

Table 4 reference and caption changed to Table 5.

20

Revised power supply voltage figures under Power Supplies and Bypassing.

24

30

Specified SMAJ58A for Zener diode.

30

B

1/12

Changed LTPoE++ power levels from 35W, 45W to 38.7W, 52.7W respectively.

Clarified AUTO Pin mode relationship to Reset pin.

1, 2, 16, 17

4

18

C

8/12

Table 1: Changed twisted pair requirement from 2-pair to 4-pair for 38.7W and 52.7W

17