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MAX1904EAI Datasheet(PDF) 4 Page - Maxim Integrated Products

Part # MAX1904EAI
Description  500kHz Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX1904EAI Datasheet(HTML) 4 Page - Maxim Integrated Products

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500kHz Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, both PWMs on, SYNC = VL, VL load = 0, REF load = 0, SKIP = 0, TA = 0°C to +85°C, unless otherwise noted. Typical
values are at TA = +25°C.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
FAULT DETECTION (MAX1901/MAX1902)
Overvoltage Trip Threshold
With respect to unloaded output voltage
4
7
10
%
Overvoltage Fault Propagation Delay
CSL_ driven 2% above overvoltage trip
threshold
1.5
µs
Output Undervoltage Threshold
With respect to unloaded output voltage
60
70
80
%
Output Undervoltage Lockout Time
From each SMPS enabled, with respect to
fOSC
5,000
6,144
7,000
clks
Thermal-Shutdown Threshold
Typical hysteresis = 10°C
150
°C
RESET
RESET Trip Threshold
With respect to unloaded output voltage,
falling edge; typical hysteresis = 1%
-7
-5.5
-4
%
RESET Propagation Delay
Falling edge, CSL_ driven 2% below
RESET
trip threshold
1.5
µs
RESET Delay Time
With respect to fOSC
27,000
32,000
37,000
clks
INPUTS AND OUTPUTS
Feedback-Input Leakage Current
FB3, FB5; SECFB = 2.6V
1
50
nA
Logic Input-Low Voltage
RUN/ON3,
SKIP, TIME/ON5 (SEQ = REF),
SHDN, STEER, SYNC
0.6
V
Logic Input-High Voltage
RUN/ON3,
SKIP, TIME/ON5 (SEQ = REF),
SHDN, STEER, SYNC
2.4
V
Input Leakage Current
RUN/ON3,
SKIP, TIME/ON5 (SEQ = REF),
SHDN, STEER, SYNC, SEQ; VPIN = 0V or 3.3V
±1µA
Logic Output-Low Voltage
RESET, ISINK = 4mA
0.4
V
Logic Output-High Current
RESET = 3.5V
1
mA
TIME/ON5 Input Trip Level
SEQ = 0 or VL
2.4
2.6
V
TIME/ON5 Source Current
TIME/ON5 = 0, SEQ = 0 or VL
2.5
3
3.5
µA
TIME/ON5 On-Resistance
TIME/ON5; RUN/ON3 = 0, SEQ = 0 or VL
15
80
Gate-Driver Sink/Source Current
DL3, DH3, DL5, DH5; forced to 2V
1
A
SSOP package
1.5
7
Gate-Driver On-Resistance
High or low (Note 6)
QFN package
1.5
8


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