MAX8717 查看數據表（PDF） - Maxim Integrated
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MAX8717
Maxim Integrated
MAX8717 Datasheet PDF : 30 Pages
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Interleaved High-Efficiency, Dual Power-Supply
Controllers for Notebook Computers
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, VIN = 12V, FSEL = REF, SKIP_ = 0, VON_ = VILIM_ = VCC = VDD = 5V, TA = 0°C to +85°C, unless otherwise noted.
Typical values are at TA = +25°C.)
PARAMETER
Reference Load Regulation
Reference Sink Current
REF Lockout Voltage
FAULT DETECTION
Output Overvoltage Trip
Threshold
Output Overvoltage Fault-
Propagation Delay
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
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 Current
ON_ Input Voltage
Tri-Level Input Logic
SYMBOL
CONDITIONS
MIN
∆VREF IREF = 0µA to 50µA
10
VREF(UVLO) Rising edge, hysteresis = 50mV
MAX8716/MAX8717 only
11
tOVP 50mV overdrive, MAX8716/MAX8717 only
With respect to error-comparator threshold
65
tUVP 50mV overdrive
tBLANK
tPGOOD_
IPGOOD_
TSHDN
From rising edge of ON_
With respect to error-comparator threshold,
hysteresis = 1%
Falling edge, 50mV overdrive
ISINK = 4mA
High state, PGOOD_ forced to 5.5V
Hysteresis = 15°C
-12.5
RDH
RDL
IDH
IDL
(SOURCE)
IDL (SINK)
tDEAD
BST_ - LX_ forced to 5V (Note 5)
DL_, high state (Note 5)
DL_, low state (Note 5)
DH_ forced to 2.5V, BST_ - LX_ forced to
5V
DL_ forced to 2.5V
DL_ forced to 2.5V
DL_ rising
DH_ rising
VBST_ = VLX_ = 26V
ON1, ON2
Rising edge, hysteresis = 225mV
SKIP1, SKIP2, FSEL
High
REF
GND
-1
1.2
VCC -
0.2
1.7
TYP
1.8
15
10
70
10
6144
-10
10
+160
1.5
1.7
0.6
2
1.7
3.3
35
26
<2
1.7
MAX
10
19
75
-8.0
0.4
1
5
5
3
20
+1
2.2
2.3
0.5
UNITS
mV
µA
V
%
µs
%
µs
1/fOSC
%
µs
V
µA
°C
Ω
Ω
A
A
A
ns
µA
µA
V
V
4 _______________________________________________________________________________________
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