LT4356 Linear Technology Corporation, LT4356 Datasheet - Page 20
LT4356
Manufacturer Part Number
LT4356
Description
Overvoltage Protection Regulator And Inrush Limiter
Manufacturer
Linear Technology Corporation
Datasheet
1.LT4356.pdf
(20 pages)
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LT4356-1
TYPICAL APPLICATION
RELATED PARTS
PART NUMBER
LT1641-1/LT1641-2
LTC1696
LTC1735
LTC1778
LTC2909
LTC2912/LTC2913
LTC2914
LTC3727/LTC3727-1 2-Phase, Dual, Synchronous Controller
LTC3827/LTC3827-1 Low I
LTC3835/LTC3835-1 Low I
LT3845
LT3850
LT4256
LTC4260
LT4351
LTC4354
LTC4355
Hot Swap, No R
20
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
SENSE
and ThinSOT are trademarks of Linear Technology Corporation.
DESCRIPTION
Positive High Voltage Hot Swap™ Controllers
Overvoltage Protection Controller
High Effi ciency Synchronous Step-Down
Switching Regulator
No R
Step-Down Controller
Triple/Dual Inputs UV/OV Negative Monitor
Single/Dual UV/OV Voltage Monitor
Quad UV/OV Monitor
Low I
Dual, 550kHz, 2-Phase Sychronous Step-Down
Controller
Positive 48V Hot Swap Controller with
Open-Circuit Detect
Positive High Voltage Hot Swap Controller with
ADC and I
Ideal MOSFET ORing Diode
Negative Voltage Diode-OR Controller
Positive Voltage Diode-OR Controller
●
SENSE
SMAJ58A
Q
Q
Q
FAX: (408) 434-0507
, Dual, Synchronous Controller
, Synchronous Step-Down Controller
, Synchronous Step-Down Controller
12V
V
IN
D2*
2
™ Wide Input Range Synchronous
C
*DIODES INC.
R6
100k
Overvoltage Regulator with Linear Regulator Up to 100mA
2N2905A
Q2
0.1μF
●
C2
10Ω
www.linear.com
R6
11
6
7
10mΩ
R
V
A
SHDN
SNS
CC
OUT
SNS
5
GND
LT4356DE-1
10
IRLR2908
GATE
COMMENTS
Active Current Limiting, Supplies From 9V to 80V
ThinSOT™ Package, 2.7V to 28V
Output Fault Protection, 16-Pin SSOP
Up to 97% Effi ciency, 4V ≤ V
I
Pin Selectable Input Polarity Allows Negative and OV Monitoring
Ads UV and OV Trip Values, ±1.5% Threshold Accuracy
For Positive and Negative Supplies
4V ≤ V
4V ≤ V
Single Channel LTC3827/LTC3827-1
4V ≤ V
Dual 180° Phased Controllers, V
QFN-28, SSOP-28 Packages
Foldback Current Limiting, Open-Circuit and Overcurrent Fault Output, Up to
80V Supply
Wide Operating Range 8.5V to 80V
External N-channel MOSFETs Replace ORing Diodes, 1.2V to 20V
Controls Two N-Channel MOSFETs, 1μs Turn-Off, 80V Operation
Controls Two N-Channel MOSFETs, 0.5μs Turn-Off, 80V Operation
Q1
OUT
4
R3
10Ω
TMR
Up to 20A
IN
IN
IN
1
C
0.1μF
≤ 36V, 0.8V ≤ V
≤ 36V, 0.8V ≤ V
≤ 60V, 1.23V ≤ V
TMR
OUT
43561 TA04
FLT
IN
3
EN
FB
+
2
12
8
9
R1
59k
R2
4.99k
OUT
OUT
OUT
249k
249k
IN
≤ 14V
≤ 10V, 80μA Quiescent Current
R4
R5
≤ 36V, 120μA Quiescent Current
≤ 36V, 0.8V ≤ V
IN
4V to 24V, 97% Duty Cycle, 4mm × 4mm
C5
10μF
C3
47nF
© LINEAR TECHNOLOGY CORPORATION 2007
2.5V, 100mA
V
12V, 3A
CLAMPED AT 16V
OUT
OUT
≤ (0.9)(V
LT 0808 REV D • PRINTED IN USA
IN
),
43561fd