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LTC4229 Datasheet(PDF) 3 Page - Linear Technology

Part # LTC4229
Description  Single Ideal Diode and Hot Swap Controller
Download  8 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4229 Datasheet(HTML) 3 Page - Linear Technology

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3
dc2060af
DEMO MANUAL DC2060A
operating principles
Power Jacks with Connected Turrets
J1, J3 GND: Supply ground terminal and load terminal
connection.
J2 SENSE+: Node for connection of external ideal diode
circuit or external supply.
J4 IN: Supply input; do not exceed 18V.
J5 OUT: Load terminal connection.
Turrets Connected with Controller Pins and LEDs
Indicating Its State
DFLT, RED LED D2: Controller DFLT pin.
DSTAT, GREEN LED D3: Controller DSTAT pin.
FAULT, RED LED D4: Controller FAULT pin.
PWRGD, GREEN LED D5: Controller PWRGD pin.
Turrets Connected with Controller Pins and Other
UV: Controller UV pin.
OV: Controller OV pin.
EN: Controller EN pin.
DOFF: Controller DOFF pin.
PRI: Node for a prioritizer implementation.
GND and PROBE GND: Ground pins for instrumental
measurements.
Jumpers
JP1, FB_SEL: Use 12V position for 12V rail operation
voltage; use 5V position for 5V rail operation voltage;
use VCC position for disabling the foldback characteristic.
JP2,DS_SEL:UseSENSE+positionforidealdiodeMOSFET
voltageregulationacrosstheMOSFETpowerterminal;use
OUT position for ideal diode MOSFET voltage regulation
across the series connected ideal diode MOSFET, sense
resistor, and Hot Swap MOSFET.
JP3, DSTAT_SEL: Use DOFF position to increase DSTAT
pin hysteresis from 20mV to 100mV (with 2.2k for R14,
R13 = 20k, R15 = 56.2k).
JP4, VIN_SEL: Use VIN position to provide signal to the
UV pin from input supply; use VS+ position to provide
signal to the UV pin from SENSE+ node.
JP5,DEBOUNCE:Use100mspositionfor100msdebounce
time; use ADJ position for debounce time defined by
external capacitor C9.
JP6, RETRY: Use LATCH position to latch off after fault;
use RETRY position to try turning on again after a fault
with time off set by FTMR capacitor; if JP6 is not installed,
auto-retry duty cycle after a fault is less than 0.1%.
JP7, EN_SEL: Use EN position to connect controller EN
pin to GND; use DIS_EXT position to connect EN pin to
EN turret for external signaling.
JP8, DC_CFG: Use 1-DIODE position to regulate a diode
voltage across the ideal diode MOSFET; use 3-COMP
position to regulate a diode voltage across three compo-
nents (ideal diode MOSFET, sense resistor and Hot Swap
MOSFET).
JP9, DIODE_OFF: Use ON position to activate ideal diode
functionality; use OFF_EXT position to connect DOFF pin
to DOFF turret for external.


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