Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

LTC1645CS8 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC1645CS8
Description  Dual-Channel Hot Swap Controller/Power Sequencer
Download  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1645CS8 Datasheet(HTML) 6 Page - Linear Technology

Back Button LTC1645CS8 Datasheet HTML 2Page - Linear Technology LTC1645CS8 Datasheet HTML 3Page - Linear Technology LTC1645CS8 Datasheet HTML 4Page - Linear Technology LTC1645CS8 Datasheet HTML 5Page - Linear Technology LTC1645CS8 Datasheet HTML 6Page - Linear Technology LTC1645CS8 Datasheet HTML 7Page - Linear Technology LTC1645CS8 Datasheet HTML 8Page - Linear Technology LTC1645CS8 Datasheet HTML 9Page - Linear Technology LTC1645CS8 Datasheet HTML 10Page - Linear Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 24 page
background image
6
LTC1645
(14-Lead Package/8-Lead Package)
Whenever the timer is inactive, an internal N-channel FET
shorts the TIMER pin to ground. Activating the timer
connects a 2
µA current source from VCC1to the TIMER pin
and the voltage starts to ramp up with a slope dv/dt = 2
µA/
CTIMER. When the voltage reaches the trip point (1.23V),
the timer is reset by pulling the TIMER pin back to ground.
The timer period is (1.23V • CTIMER)/2µA.
GATE1 (Pin 12/Pin 6): Channel 1 High Side Gate Drive.
Connect to the gate of an external N-channel MOSFET. An
internal charge pump guarantees at least 4.5V of gate
drive. The charge pump is powered by the higher of VCC1
and VCC2. When the ON pin exceeds 0.8V, GATE1 is turned
on by connecting a 10
µA current source from the charge
pump output to the GATE1 pin and the voltage starts to
ramp up with a slope dv/dt = 10
µA/CGATE1. While the ON
pin is below 0.8V but above 0.4V, a 40
µA current source
pulls GATE1 toward ground. If the ON pin is below 0.4V,
the circuit breaker trips or the undervoltage lockout circuit
trips, the GATE1 pin is immediately pulled to ground with
a 12mA (typ) current source.
SENSE1 (Pin 13/Pin 7): VCC1 Circuit Breaker Set Pin. With
a sense resistor placed in the supply path between VCC1
and SENSE1, the circuit breaker trips when the voltage
across the resistor exceeds 50mV for more than 1.5
µs. If
the circuit breaker trip current is set to twice the normal
operating current, only 25mV is dropped across the sense
resistor during normal operation. To disable the circuit
breaker, short VCC1 and SENSE1 together.
VCC1 (Pin 14/Pin 8): Positive Supply Input. VCC1 can range
from 2.375V to 12V for normal operation. ICC1 is typically
1mA. An undervoltage lockout circuit disables the chip
whenever the voltage at VCC1 is less than 2.23V. All internal
logic is powered by VCC1.
+
+
+
+
2.23V
UVL
2V
ON
0.8V
0.4V
REF
1.5
µs
FILTER
1.12V
UVL
1.5
µs
FILTER
LOGIC
GLITCH
FILTER
REF
REF
4
× CHARGE
PUMP
1.238V
REFERENCE
50mV
50mV
2
µA
+
+
10
VCC1
14
SENSE1
13
VCC2
1
SENSE2
2
GATE1
12
GATE2
3
FB
6
RESET
5
GND
7
COMP+
8
COMPOUT
9
FAULT 4
1645 BD
TIMER 11
PI FU CTIO S
BLOCK DIAGRA


Similar Part No. - LTC1645CS8

ManufacturerPart #DatasheetDescription
logo
Linear Technology
LTC1645 LINER-LTC1645 Datasheet
278Kb / 24P
   Dual Supply Hot Swap Controller for Advanced Mezzanine Card
LTC1645 LINER-LTC1645 Datasheet
384Kb / 24P
   Dual Ideal Diode and Hot Swap Controller
LTC1645 LINER-LTC1645 Datasheet
341Kb / 24P
   Wide Operating Range Dual Hot Swap Controller Fast Response Limits Peak Fault Current
logo
Analog Devices
LTC1645 AD-LTC1645 Datasheet
650Kb / 22P
   No RSENSE??Electronic Circuit Breaker
11/21 Rev. A
logo
Linear Technology
LTC1645 LINER-LTC1645_15 Datasheet
334Kb / 24P
   Dual-Channel Hot Swap Controller/Power Sequencer
More results

Similar Description - LTC1645CS8

ManufacturerPart #DatasheetDescription
logo
Linear Technology
LTC1645 LINER-LTC1645_15 Datasheet
334Kb / 24P
   Dual-Channel Hot Swap Controller/Power Sequencer
logo
Micrel Semiconductor
MIC2584 MICREL-MIC2584 Datasheet
277Kb / 28P
   Dual-Channel Hot Swap Controller/Sequencer
MIC2584 MICREL-MIC2584_05 Datasheet
274Kb / 28P
   Dual-Channel Hot Swap Controller/Sequencer
logo
Linear Technology
LTC4253 LINER-LTC4253 Datasheet
337Kb / 32P
   -48V Hot Swap Controller with Sequencer
LTC4253A-ADJ LINER-LTC4253A-ADJ_15 Datasheet
699Kb / 32P
   48V Hot Swap Controller with Sequencer
LTC4253A-ADJ LINER-LTC4253A-ADJ Datasheet
399Kb / 32P
   -48V Hot Swap Controller with Sequencer
LTC4253B LINER-LTC4253B_15 Datasheet
373Kb / 32P
   48V Hot Swap Controller with Sequencer
logo
Micrel Semiconductor
MIC2589 MICREL-MIC2589_11 Datasheet
4Mb / 29P
   Single-Channel, Negative High-Voltage Hot Swap Power Controller/Sequencer
MIC2589 MICREL-MIC2589_05 Datasheet
4Mb / 29P
   Single-Channel, Negative High-Voltage Hot Swap Power Controller/Sequencer
MIC2586 MICREL-MIC2586 Datasheet
601Kb / 17P
   Single-Channel, Positive High-Voltage Hot Swap Controller/Sequencer
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com