MAX5942BCSE Maxim Integrated, MAX5942BCSE Datasheet - Page 4

• Manufacturer Part Number: MAX5942BCSE
• Description: Power Switch ICs - POE / LAN
• Manufacturer: Maxim Integrated

IEEE 802.3af Power-Over-Ethernet
Interface/PWM Controller for Power Devices
ELECTRICAL CHARACTERISTICS (PWM Controller) (continued)
(All voltages referenced to V-. V
SS_SHDN, NDRV = open circuit, V
4
V
V+ Shutdown Current
V
PREREGULATORS/STARTUP
V+ Input Voltage
V
INTERNAL REGULATORS
V
V
OUTPUT DRIVER
Peak Source Current
Peak Sink Current
NDRV High-Side Driver
Resistance
NDRV Low-Side Driver
Resistance
ERROR AMPLIFIER
FB Input Resistance
FB Input Bias Current
Error Amplifier Gain (Inverting)
Closed-Loop 3dB Bandwidth
FB Input Voltage Range
SLOPE COMPENSATION
Slope Compensation
THERMAL SHUTDOWN
Thermal Shutdown Temperature
Thermal Hysteresis
CURRENT LIMIT
CS Threshold Voltage
CS Input Bias Current
Current-Limit Comparator
Propagation Delay
CS Blanking Time
OSCILLATOR
Clock Frequency Range
Max Duty Cycle
DD
DD
DD
CC
CC
_______________________________________________________________________________________
Supply Current
Shutdown Current
Supply Voltage
Output Voltage
Undervoltage Lockout
PARAMETER
DD
FB
= 13V, a 10µF capacitor connects V
V
= 3V, T
SYMBOL
I
V
CC_UVLO
VDD(NS)
I
VDD(S)
SCOMP
A
V
R
R
R
I
VCL
ILIM
FB
OH
OL
IN
A
= T
V
V
V
V
Powered from V+, I
Powered from V
V
V
V
V
sourcing 50mA
V
50mA
V
MAX5942A
FB = 4V
0V ≤ V
25mV overdrive on CS, FB = V-
FB = GN D , onl y P W M com p ar ator i s b l anked
FB = V-
MAX5942A, FB = V-
MAX5942B, FB = V-
MIN
DD
DD
SS_SHDN
SS_SHDN
CC
CC
CC
CC
CC
FB
to T
= V
= 36V, driver not switching
= 36V, driver switching, V
falling
= 11V (externally forced)
= 11V (externally forced)
= 11V, externally forced, NDRV
= 11V, externally forced, NDRV sinking
CS
SS_SHDN
MAX
≤ 2V, FB = 4V
= 0V, V+ = 67V
= 0V
, unless otherwise noted. Typical values are at T
CONDITIONS
DD
, I
CC
CC
= 7.5mA, V
CC
= 7.5mA
to V-, V
OPTO
CS
DD
= 4V
= V-, V+ = 48V, 0.1µF capacitor connected to
= 0V
MIN
419
235
7.5
9.0
18
13
75
44
-1
2
1000
+150
TYP
10.0
180
570
200
465
180
275
0.9
1.9
9.8
6.6
1.6
-20
±1
50
26
25
70
4
4
A
= +25°C.) (Note 1)
MAX
11.0
290
510
314
1.6
3.2
20
67
36
12
12
+1
85
50
4
3
UNITS
mV/µs
kHz
kHz
mA
mA
mA
V/V
mV
µA
µA
kΩ
µA
µA
°C
°C
ns
ns
%
Ω
Ω
V
V
V
V
V