LTC1645CS datasheet(11/24 Pages) LINER

tên linh kiện	LTC1645CS

Giải thích chi tiết về linh kiện	Dual-Channel Hot Swap Controller/Power Sequencer

PDF	24 Pages

Scroll/Zoom	100%

nhà sản xuất	LINER [Linear Technology]

Trang chủ	http://www.linear.com

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LTC1645

APPLICATIO S I FOR ATIO

(a) VCC Short-Circuit Supply Current Glitch Without Any Limiting

(b) VCC Supply Glitch Without Any Limiting

with 2

µH Series Inductor

(d) VCC Supply Glitch with 2µH Series Inductor

Figure 8. Supply Glitch

Supply Glitching

LTC1645 Hot Swap circuits on the backplane are generally

used to provide power-up/down sequence at insertion/

removal as well as overload/short-circuit protection. If a

short-circuit occurs at supply ramp-up, the circuit breaker

trips. The partially enhanced FET is easily disconnected

without any supply glitch.

If a dead short occurs after a supply connection is made

(Figure 8), the sense resistor R1 and the RDS(ON) of the

fully enhanced FET provide a low impedance path for

0.1

µF

1645 F08

Ω

0.01

Ω

12V

IRF7413

µH

–

LTC1645

SUPPLY

GLITCH

100

µF

µs/DIV

1645 F08a

µs/DIV

1645 F08b

VCC

GATE

µs/DIV

1645 F08c

µs/DIV

1645 F08d

GATE

VCC

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