MAX8744ETJ+ Maxim Integrated Products, MAX8744ETJ+ Datasheet - Page 5

• Manufacturer Part Number: MAX8744ETJ+
• Description: IC CNTRLR PWR SUP QUAD 32TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8744ETJ+

• Applications: Controller, Notebook Computers
• Voltage - Input: 6 ~ 26 V
• Number Of Outputs: 4
• Voltage - Output: 3.3V, 5V, 1 ~ 26 V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Duty Cycle (max): 99 %
• Output Voltage: 3.315 V, 5.015 V, 2 V to 5.5 V
• Mounting Style: SMD/SMT
• Switching Frequency: 200 KHz, 300 KHz, 500 KHz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Synchronous Pin: No
• Topology: Boost, Flyback, Forward
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
no load, T
Output Undervoltage Protection
Trip Threshold
Output Undevoltage Fault
Propagation Delay
Output Undervoltage Protection
Blanking Time
PGOOD_ Lower Trip Threshold
PGOOD_ Propagation Delay
PGOOD_ Output Low Voltage
PGOOD_ Leakage Current
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
Internal BST_ Switch On-
Resistance
BST_ Leakage Current
INPUTS AND OUTPUTS
SHDN Input Trip Level
ONA Logic Input Voltage
ON3, ON5 Input Voltage
A
PARAMETER
Supply Controllers for Notebook Computers
= 0°C to +85°C, unless otherwise noted. Typical values are at T
High-Efficiency, Quad-Output, Main Power-
_______________________________________________________________________________________
IN
= 12V, both SMPS enabled, FSEL = REF, SKIP = GND, ILIM = LDO5, FBA = LDO5, I
I
DL (SOURCE)
SYMBOL
I
t
I
DL (SINK)
PGOOD
PGOOD
t
t
t
BLANK
R
SHDN
DEAD
t
R
R
I
UVP
DH
BST
DH
DL
_
_
With respect to error-comparator
threshold
50mV overdrive
From rising edge of ON_ with respect to
f
With respect to error-comparator
threshold, hysteresis = 1% (typ)
Falling edge, 50mV overdrive
Rising edge, 50mV overdrive
I
High state, PGOOD_ forced to 5.5V
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
DH_low to DL_high
DL_low to DH_high
I
V
Rising trip level
Falling trip level
Hysteresis = 600mV (typ)
SMPS off level/clear fault level
Delay start level
SMPS on level
SW
SINK
BST
BST
= 10mA
_ = 26V
= 1mA
CONDITIONS
A
= +25°C.)
High
Low
5000
MIN
0.96
-12
1.1
2.4
1.9
2.4
65
15
15
+160
6144
TYP
-10
1.3
1.7
0.6
1.7
3.3
1.6
70
10
10
45
44
1
1
2
5
2
REF
= I
MAX
7000
1.04
0.4
2.2
0.8
0.8
2.1
LDO5
75
20
-8
1
5
5
3
= I
UNITS
1/f
OUTA
µA
µA
µs
µs
°C
ns
%
%
OSC
Ω
Ω
A
A
A
Ω
V
V
V
V
5
=