MAX8555EUB Maxim Integrated Products, MAX8555EUB Datasheet - Page 6

• Manufacturer Part Number: MAX8555EUB
• Description: MOSFET & Power Driver ICs .5-3.3V ORing MOSFET Controller
• Manufacturer: Maxim Integrated Products

Specifications of MAX8555EUB

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Low-Cost, High-Reliability, 0.5V to 3.3V ORing
MOSFET Controllers
(V
+25°C, R1 = 2Ω in Figure 3, MAX8555A, unless otherwise noted.)
6
DD
_______________________________________________________________________________________
25
20
15
10
-5
= 12V, V
5
0
10
vs. TIMER RESISTOR (V
CS+
GATE-CHARGE CURRENT
T
A
I
MOSFET
= +85°C
V
V
TIMER RESISTOR (kΩ)
30.0
28.0
26.0
24.0
22.0
20.0
18.0
16.0
14.0
12.0
10.0
GATE
V
CS+
CS-
= 1.5V, R
-40
T
A
= +25°C
REVERSE-CURRENT THRESHOLD vs.
100
POWER-UP WAVEFORMS BUS
-20
VOLTAGE HIGH IMPEDANCE
TIMER
DD
TEMPERATURE (°C)
TEMPERATURE
0
T
= 12V)
A
= 25kΩ, V
= -40°C
1ms/div
20
1000
40
UVP
MAX8555/55A toc06
60
= 1V, V
18
16
14
12
10
-2
8
6
4
2
0
10
80
OVP
TIMER RESISTOR (V
1V/div
5V/div
1V/div
1A/div
GATE-CHARGE CURRENT vs.
= 0.4V, R
TIMER RESISTOR (kΩ)
T
A
= +85°C
T
FAULT
100
A
= +25°C
Typical Operating Characteristics
DD
I
= V
= 50kΩ to output bus, C
MOSFET
V
50.0
45.0
40.0
35.0
30.0
25.0
20.0
15.0
10.0
V
GATE
V
5.0
VL
CS+
T
CS-
A
0
= -40°C
= 3V)
-40
OVP AND UVP LEAKAGE CURRENT vs.
1000
-20
POWER-UP WAVEFORMS
BUS VOLTAGE IS LIVE
TEMPERATURE (°C)
TEMPERATURE
0
3.0
2.5
2.0
1.5
1.0
0.5
2ms/div
0
20
-40
VDD
V
40
DD
-20
= C
OVP
UVP
CURRENT vs. TEMPERATURE
TIMER = OPEN
MAX8555/55A toc07
GATE
60
TEMPERATURE (°C)
0
80
= C
20
5V/div
1V/div
1V/div
500mA/div
VL
TIMER = GND
= 0.01µF, T
40
V
DD
60
= 13.25V
80
A
=