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7443320150 Datasheet(Fiches technique) 5 Page - Microchip Technology

Numéro de pièce 7443320150
Description  High-Speed Synchronous Buck Controller
Télécharger  44 Pages
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Fabricant  MICROCHIP [Microchip Technology]
Site Internet  http://www.microchip.com
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 2012 Microchip Technology Inc.
DS22326A-page 5
MCP19035
LDRV Fall Time
tFL
—10
25
ns
CLOAD = 1.0 nF, Note 1
Dead Time
tDT
20
ns
Two Dead-Time options, See
Section 5.2.2, Dead Time
Selection, Note 1
—12—
Short Circuit Protection
High-Side Over Current
Threshold Voltage
OCTH-HI
430
480
530
mV
Note 1
, VCBOOT = 5V
Low-Side Over Current
Threshold Voltage
OCTH-LO
130
180
230
mV
Note 1, Note 3
Minimum Pulse Width
During Short Circuit
tSS-MIN
800
ns
Note 1
Off-Time Between
Restart Attempts (Hick-
Up Time)
tSS-HT
30
60
ms
Note 1
Thermal Shutdown
Thermal Shutdown
TSHD
150
°C
Note 1
Thermal Shutdown
Hysteresis
TSHD_HYS
15
°C
Note 1
TEMPERATURE SPECIFICATIONS
Electrical Characteristics:
Unless otherwise indicated, VIN = 6.0V to 30V, FSW = 300 kHz
Parameters
Sym
Min
Typ
Max
Units
Conditions
Temperature Ranges
Specified Temperature Range
TA
-40
+125
°C
Maximum Junction Temperature
TJ-MAX
——
+150
°C
Operating Temperature Range
TA
-40
+125
°C
Storage Temperature Range
TA
-65
+150
°C
Thermal Package Resistances
Thermal Resistance, 10L-3x3 DFN
JA
53.3
°C/W Typical 4-Layer board with
interconnecting vias
DC ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Specifications
: Unless otherwise noted, VIN = 12V, FSW = 300 kHz, CIN = 1.0 µF, TA = +25°C (for typical
values), TA = -40°C to +125°C (for minimum and maximum).
Parameters
Symbol
Min
Typ
Max
Units
Conditions
Note 1:
Ensured by design. Not production tested.
2:
Limited by the maximum power dissipation of the case.
3:
Possibility to be adjusted for high volumes.




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