SC1102(2000) Ver la hoja de datos (PDF) - Semtech Corporation
Número de pieza
componentes Descripción
Fabricante
SC1102
(Rev.:2000)
(Rev.:2000)
Semtech Corporation
SC1102 Datasheet PDF : 10 Pages
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SYNCHRONOUS DC/DC CONTROLLER FOR
SC1102
DISTRIBUTED POWER SUPPLY APPLICATIONS
September 5, 2000
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Maximum
Units
VCC, BSTL to GND
PGND to GND
VIN
-0.3 to 14
V
± 0.5
V
PHASE to GND
-0.3 to 18
V
BSTH to PHASE
14
V
Thermal Resistance Junction to Case
Thermal Resistance Junction to Ambient
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering) 10 sec
ESD Rating (Human Body Model)
θJC
θJA
TA
TSTG
TLEAD
ESD
45
115
0 to 70
-65 to +150
300
2
°C/W
°C/W
°C
°C
°C
kV
ELECTRICAL CHARACTERISTICS
Unless specified: VCC = 4.75V to 12.6V; GND = PGND = 0V; FB = VO; VBSTL = 12V; VBSTH-PHASE = 12V; TJ = 25oC
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
POWER SUPPLY
Supply Voltage
Supply Current
Line Regulation
ERROR AMPLIFIER
VCC
EN = VCC
VO = 2.5V
4.2
12.6
V
6
10
mA
0.5
%
Gain (AOL)
35
dB
Input Bias
5
8
µA
OSCILLATOR
Oscillator Frequency
180
200
220
kHz
Oscillator Max Duty Cycle
90
95
%
MOSFET DRIVERS
DH Source/Sink Current
BSTH - DH = 4.5V / DH - PHASE = 2V
1
A
DL Source/Sink Current
BSTL - DL = 4.5V / DL - PGNDL = 2V
1
A
PROTECTION
OVP Threshold Voltage
20
%
OVP Source Current
Power Good Threshold
VOVP = 3V
10
mA
88
112
%
Dead Time
45
100
ns
Over Current Set Isource
2.0V ≤ VOCSET ≤ 12V
180
200
220
µA
NOTE:
(1) Specification refers to application circuit (Figure 1).
2
© 2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
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