MAX1630–MAX1635
Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, both PWMs on, SYNC = VL, VL load = 0mA, REF load = 0mA, SKIP = 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.)
V+ = VL = 0V,
CSL3 = CSH3 = CSL5 = CSH5 = 5.5V
µA0.01 10
Not tested
Current-Sense Input Leakage Current
Not tested
Rising edge, hysteresis = 1% (Note 3)
V
DD
< 13V or SECFB < 2.44V
V18 20
µs1
Falling edge (MAX1631/MAX1634)
DL Pulse Width
Falling edge (Note 3)
V
DD
Shunt Threshold
V2.44 2.60
V13 14
CONDITIONS
V
DD
Regulation Threshold
SECFB Regulation Threshold
V
DD
= 20V (Note 3)
V
DD
= 5V, off mode (Notes 3, 4) µA30V
DD
Leakage Current
mA10V
DD
Shunt Sink Current
ns200
ns200SYNC Input High Pulse Width
SYNC Input Low Pulse Width
13V < V
DD
< 18V, 0mA < I
LOAD
< 120mA V11.65 12.1 12.5012OUT Output Voltage
UNITSMIN TYP MAXPARAMETER
Not tested ns200SYNC Rise/Fall Time
kHz240 350SYNC Input Frequency Range
V
DD
= 18V, run mode, no 12OUT load
12OUT forced to 11V, V
DD
= 13V
µA50 100
mA15012OUT Current Limit
Quiescent V
DD
Current
Rising edge of CSL5, hysteresis = 1%
Falling edge, hysteresis = 1%
V4.2 4.5 4.7
V3.5 3.6 3.7
VL Undervoltage Lockout
Fault Threshold
VL Switchover Threshold
SHDN = V+, RUN/ON3 = TIME/ON5 = 0V,
5.3V < V+ < 30V, 0mA < I
LOAD
< 50mA
V4.7 5.1VL Output Voltage
Falling edge V1.8 2.4
µA10REF Sink Current
REF Fault Lockout Voltage
V+ = 4V to 24V, SHDN = 0V
V+ = 4.2V to 5.5V, both SMPSs off,
includes current into SHDN
µA4 10
µA50 200
V+ Standby Supply Current
in Dropout
V+ Shutdown Supply Current
V+ = 5.5V to 30V, both SMPSs off,
includes current into SHDN
VL switched over to CSL5, 5V SMPS on
µA30 60
µA5 50V+ Operating Supply Current
V+ Standby Supply Current
0µA < I
LOAD
< 50µA
No external load (Note 5)
12.5
V2.45 2.5 2.55REF Output Voltage
2.5 4
Both SMPSs enabled, FB3 = FB5 = 0V,
CSL3 = CSH3 = 3.5V,
CSL5 = CSH5 = 5.3V
mW
1.5 4
Quiescent Power Consumption
(Note 3)
MAX1631/
MAX1634
0mA < I
LOAD
< 5mA
mV
100.0
REF Load Regulation
FLYBACK CONTROLLER
12V LINEAR REGULATOR (Note 3)
INTERNAL REGULATOR AND REFERENCE
(7 páginas)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comentários a estes Manuais