MAX5074 Maxim Integrated Products, MAX5074 Datasheet - Page 3

• Manufacturer Part Number: MAX5074
• Description: Power IC with Integrated MOSFETs
• Manufacturer: Maxim Integrated Products

Power IC with Integrated MOSFETs for Isolated IEEE
ELECTRICAL CHARACTERISTICS (continued)
(V
T
REGOUT LDO (REGOUT)
REGOUT Voltage Set Point
REGOUT Load Regulation
REGOUT Dropout Voltage
REGOUT Undervoltage Lockout
Threshold
REGOUT Undervoltage Lockout
Threshold Hysteresis
SOFT-START (CSS)
Soft-Start Current
INTEGRATING FAULT PROTECTION (FLTINT)
FLTINT Source Current
FLTINT Trip Point
FLTINT Hysteresis
INTERNAL POWER MOSFETs (See Figure 1, QH and QL)
On-Resistance
Off-State Leakage Current
Total Gate Charge Per FET
HIGH-SIDE DRIVER
Low-to-High Delay
High-to-Low Delay
Driver Output Voltage
LOW-SIDE DRIVER
Low-to-High Delay
High-to-Low Delay
CURRENT-LIMIT COMPARATOR (CS)
Current-Limit Threshold Voltage
Current-Limit Input Bias Current
A
HVIN
802.3af PD and Telecom Power-Supply Applications
= T
J
= 12V, C
= -40°C to +125°C, unless otherwise noted. Typical values are at T
PARAMETER
INBIAS
_______________________________________________________________________________________
= 1µF, C
REGOUT
SYMBOL
V
R
= 2.2µF, R
I
REGOUT
FLTINT
I
DS(ON)
V
I
BILIM
CSS
ILIM
RTCT
INBIAS floating, V
V
INBIAS floating, V
to 30mA
V
30mA
INBIAS floating, I
V
REGOUT rising
REGOUT falling
FLTINT rising
V
V
Driver delay until FET V
(V
Driver delay until FET V
(V
BST to XFRMRH with high side on
Driver delay until FET V
V
Driver delay until FET V
V
0 < V
INBIAS
INBIAS
INBIAS
DRVIN
XFRMRH
DRVIN
DRVIN
BST
BST
= 25kΩ, C
CS
- V
- V
and is fully on
and is fully off
= V
= V
= V
= V
< 0.3V
XFRMRH
XFRMRH
= V
BST
HVIN
HVIN
HVIN
SRC
RTCT
CONDITIONS
= 9V,
, I
= 11V to 76V
= 15V, I
) and is fully on
) and is fully off
REGOUT
HVIN
HVIN
= 0V, I
REGOUT
= 100pF, C
= 11V to 76V
= 15V, I
GS
GS
GS
GS
DS
REGOUT
A
= 30mA
reaches 0.9 x
reaches 0.1 x
reaches 0.9 x
reaches 0.1 x
= 30mA
= +25°C, unless otherwise noted.) (Note 1)
= 50mA
BST
REGOUT
= 0 to
= 0.22µF, V
= 0
CSS
MIN
140
8.3
9.5
6.6
-5
-2
= V
CS
= 0V, V
TYP
156
0.7
2.7
0.8
0.4
33
80
15
80
40
80
40
8
RAMP
MAX
11.0
0.25
0.25
1.25
1.25
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172
9.2
7.4
0.8
+5
+2
= V
UVLO
UNITS
= 3V,
mV
nC
µA
µA
µA
µA
ns
ns
ns
ns
Ω
V
V
V
V
V
V
V
V
3