MAX8741EAI+T Maxim Integrated, MAX8741EAI+T Datasheet - Page 3

• Manufacturer Part Number: MAX8741EAI+T
• Description: Current & Power Monitors & Regulators 500kHz Multi-Out Pwr Supply Controller
• Manufacturer: Maxim Integrated

Specifications of MAX8741EAI+T

• Rohs: yes
• Product: Power Monitors
• Supply Voltage - Max: 30 V
• Supply Voltage - Min: 4.2 V
• Input Voltage Range: 4.2 V to 30 V

ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, both PWMs on, SYNC = V
values are at T
INTERNAL REGULATOR AND REFERENCE
Maximum Duty Factor
SYNC Input High Pulse Width
SYNC Input Low Pulse Width
SYNC Rise/Fall Time
SYNC Input-Frequency Range
Current-Sense Input Leakage Current
FLYBACK CONTROLLER
V
SECFB Regulation Threshold
DL Pulse Width
V
V
V
12V LINEAR REGULATOR (MAX8742)
12OUT Output Voltage
12OUT Current Limit
Quiescent V
V
V
V
REF Output Voltage
REF Load Regulation
REF Sink Current
REF Fault-Lockout Voltage
V+ Operating Supply Current
V+ Standby Supply Current
V+ Standby Supply Current in Dropout
V+ Shutdown Supply Current
Quiescent Power Consumption
DD
DD
DD
DD
L
L
L
Output Voltage
Undervoltage-Lockout Fault Threshold
Switchover Threshold
500kHz Multi-Output Power-Supply Controllers
Regulation Threshold
Shunt Threshold
Shunt Sink Current
Leakage Current
DD
A
PARAMETER
= +25°C.)
Current
_______________________________________________________________________________________
with High Impedance in Shutdown
L
, V
L
load = 0, REF load = 0, SKIP = 0, T
Both SMPSs enabled,
FB3 = FB5 = 0,
CSL3 = CSH3 = 3.5V,
CSL5 = CSH5 = 5.3V
SYNC = V
SYNC = 0 (Note 2)
Not tested
Not tested
Not tested
V+ = V
CSL3 = CSH3 = CSL5 = CSH5 = 5.5V
Falling edge (MAX8742)
Falling edge (MAX8741)
V
Rising edge, hysteresis = 1% (MAX8742)
V
V
13V < V
12OUT forced to 11V, V
V
SHDN = V+, RUN/ON3 = TIME/ON5 = 0,
5.4V < V+ < 30V, 0mA < I
Falling edge, hysteresis = 1%
Rising edge of CSL5, hysteresis = 1%
No external load (Note 4)
0 < I
0 < I
Falling edge
V
V+ = 5.5V to 30V, both SMPSs off, includes
current into SHDN
V+ = 4.2V to 5.5V, both SMPSs off, includes
current into SHDN
V+ = 4.0V to 30V, SHDN = 0
DD
DD
DD
DD
L
switched over to CSL5, 5V SMPS on
= 20V (MAX8742)
= 5V, off mode (Note 3)
= 18V, run mode, no 12OUT load
LOAD
LOAD
< 13V or SECFB < 2.44V
L
DD
= 0,
L
< 50µA
< 5mA
< 18V, 0 < I
CONDITIONS
LOAD
DD
MAX8742
MAX8741
LOAD
= 13V
< 120mA
< 50mA
A
= 0°C to +85°C, unless otherwise noted. Typical
11.65
MIN
96.5
2.44
2.45
200
200
400
4.7
3.5
4.2
1.8
95
13
18
10
10
12.10
TYP
0.01
0.75
150
3.6
4.5
2.5
2.5
1.5
97
98
50
30
50
5
4
12.50
100.0
MAX
2.60
2.55
12.5
200
583
100
200
5.1
3.7
4.7
2.4
10
14
20
30
50
60
10
4
4
UNITS
kHz
mW
mA
mA
mV
µA
µA
µA
µA
µA
µA
µA
µA
ns
ns
ns
µs
%
V
V
V
V
V
V
V
V
V
3