MAX1537 Maxim Integrated Products, MAX1537 Datasheet - Page 5
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MAX1537
Manufacturer Part Number
MAX1537
Description
Main Power-Supply Controllers
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX1537.pdf
(38 pages)
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
I
LDO5
Output Undervoltage-Protection
Trip Threshold
Output Undervoltage Fault-
Propagation Delay
Output Undervoltage-Protection
Blanking Time
PGOOD Lower Trip Threshold
PGOOD Propagation Delay
PGOOD Output Low Voltage
PGOOD Leakage Current
PGDLY Pullup Current
PGDLY Pulldown Resistance
PGDLY Trip Threshold
Thermal-Shutdown Threshold
GATE DRIVERS
DH_ Gate-Driver On-Resistance
DL_ Gate-Driver On-Resistance
DH_ Gate-Driver Source/Sink
Current
DL_ Gate-Driver Source Current
DL_ Gate-Driver Sink Current
Dead Time
LX_, BST_ Leakage Current
INPUTS AND OUTPUTS
Logic Input Voltage
Fault Enable Logic Input Voltage
Logic Input Current
SHDN Input Trip Level
ON_ Input Voltage
High-Efficiency, 5x Output, Main Power-Supply
= I
LDO3
PARAMETER
= I
LDOA
_______________________________________________________________________________________
IN
= no load, T
= 12V, both SMPS enabled, V
Controllers for Notebook Computers
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
SYMBOL
I
t
I
DL (SINK)
PGOOD
PGOOD
t
T
BLANK
t
t
R
DEAD
SHDN
R
I
UVP
I
DH
DL
DH
DL
_
_
With respect to error-comparator threshold
50mV overdrive
From rising edge of ON_
With respect to error-comparator
threshold, hysteresis = 1%
Falling edge, 50mV overdrive
I
High state, PGOOD forced to 5.5V
PGDLY = GND
Hysteresis = 15°C
BST_ - LX_ forced to 5V
DL_, high state
DL_, low state
DH_ forced to 2.5V,
BST_ - LX_ forced to 5V
DL_ forced to 2.5V
DL_ forced to 2.5V
DL_ rising
DH_ rising
V
SKIP, hysteresis = 600mV
OVP, UVP, ONA
OVP, UVP, SKIP, ONA
Rising trip level
Falling trip level
Clear fault level/SMPS off level
Delay start level (REF)
SMPS on level
SINK
BST
CC
_ = V
= 4mA
= 5V, FSEL = REF, SKIP = GND, V
LX
_ = 26V
CONDITIONS
High
Low
High
Low
ILIM_
= V
0.7 x
REF-
MIN
V
1.10
0.96
-14
0.2
2.4
1.9
2.4
65
-1
CC
4
LDO5
A
= +25°C.)
, V
6144 /
+160
f
TYP
REF
OSC
-10
1.5
1.7
0.6
1.7
3.3
1.6
<2
70
10
10
10
35
26
INA
5
2
1
www.DataSheet4U.com
= 15V, V
REF+
MAX
2.20
1.04
-7.5
0.4
0.2
0.8
0.4
0.8
2.1
+1
75
25
20
1
6
5
5
3
LDOA
UNITS
= 12V,
µA
µA
°C
µA
µA
µs
µs
ns
%
%
Ω
Ω
Ω
V
V
A
A
A
V
V
V
V
s
5