MAX1632AEAI Datasheet, PDF (3/29 Pages) Maxim Integrated Products – Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers

Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
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.)
PARAMETER
SYNC Input High Pulse Width
SYNC Input Low Pulse Width
SYNC Rise/Fall Time
SYNC Input Frequency Range
Not tested
Not tested
Not tested
CONDITIONS
MIN TYP MAX UNITS
200
ns
200
ns
200
ns
240
350 kHz
Current-Sense Input Leakage Current
V+ = VL = 0V,
CSL3 = CSH3 = CSL5 = CSH5 = 5.5V
0.01
10
µA
FLYBACK CONTROLLER
V_DD Regulation Threshold
Falling edge (Note 3)
SECFB Regulation Threshold
Falling edge (MAX1631A/MAX1634A)
DL Pulse Width
V_DD < 13V or SECFB < 2.44V
V_DD Shunt Threshold
Rising edge, hysteresis = 1% (Note 3)
V_DD Shunt Sink Current
V_DD = 20V (Note 3)
V_DD Leakage Current
V_DD = 5V, off mode (Notes 3, 4)
12V LINEAR REGULATOR (Note 3)
12OUT Output Voltage
13V < V_DD < 18V, 0mA < I_LOAD < 120mA
12OUT Current Limit
12OUT forced to 11V, V_DD = 13V
Quiescent V_DD Current
V_DD = 18V, run mode, no 12OUT load
INTERNAL REGULATOR AND REFERENCE
VL Output Voltage
SHDN = V+, RUN/ON3 = TIME/ON5 = 0V,
5.3V < V+ < 30V, 0mA < I_LOAD < 50mA
13
14
V
2.44
2.60
V
1
µs
18
20
V
10
mA
30
µA
11.65 12.1 12.50
V
150
mA
50
100
µA
4.7
5.1
V
VL Undervoltage Lockout
Fault Threshold
Falling edge, hysteresis = 1%
3.5
3.6
3.7
V
VL Switchover Threshold
REF Output Voltage
REF Load Regulation
REF Sink Current
REF Fault Lockout Voltage
V+ Operating Supply Current
Rising edge of CSL5, hysteresis = 1%
No external load (Note 5)
0µA < I_LOAD < 50µA
0mA < I_LOAD < 5mA
Falling edge
VL switched over to CSL5, 5V SMPS on
4.2
4.5
4.7
V
2.45
2.5
2.55
V
12.5
mV
100.0
10
µA
1.8
2.4
V
5
50
µA
V+ Standby Supply Current
V+ = 5.5V to 30V, both SMPSs off,
includes current into SHDN
30
60
µA
V+ Standby Supply Current
in Dropout
V+ = 4.2V to 5.5V, both SMPSs off,
includes current into SHDN
50
200
µA
V+ Shutdown Supply Current
V+ = 4V to 24V, SHDN = 0V
4
10
µA
Quiescent Power Consumption
Both SMPSs enabled, FB3 = FB5 = 0V, ^{(Note 3)}
CSL3 = CSH3 = 3.5V,
MAX1631A/
CSL5 = CSH5 = 5.3V
MAX1634A
2.5
4
mW
1.5
4
_______________________________________________________________________________________ 3