Datasheet

MAX8535/MAX8536/MAX8585
ORing MOSFET Controllers with Fastest
Fault Isolation for Redundant Power Supplies
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS
(V
CC
= 12V (MAX8535/MAX8535A/MAX8585), V
CC
= 5V (MAX8536), V
CS
= V
CC
- 0.1V, R
TIMER
= 25kΩ, UVP = 2V, OVP = 1V, C
GATE
= 0.01µF, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
V
CC
SUPPLY
V
CC
= 14V (MAX8535/
MAX8535A/MAX8585)
4.5
V
CC
Supply Current
TIMER = 2.5V
V
CC
= 6V (MAX8536) 3
mA
V
CC
= 14V (MAX8535/
MAX8535A/MAX8585)
4.5
V
CC
Shutdown Current TIMER = 0V
V
CC
= 6V (MAX8536) 3
mA
MAX8535/MAX8535A/
MAX8585, charge pump on
814
MAX8536, charge pump on
3.0 5.5V
CC
Input Voltage
TIMER = 2.5V
MAX8535/MAX8535A/
MAX8585, charge pump off
17
V
CS Isolation
C S = m ax op er ati ng vol tag e, V
C C
= 0V , I( V
C C
)
-1 µA
(MAX8535/MAX8535A/MAX8585) rising
threshold
6.0 7.0
V
CC
Undervoltage Lockout V
CCOK
(MAX8536) rising threshold 2.5 2.9
V
Rising threshold 14 15
V
CC
Overvoltage Internal
Threshold
(MAX8535/
MAX8535A/
MAX8585)
Falling threshold
13.3 14.5
V
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 12V (MAX8535/MAX8535A/MAX8585), V
CC
= 5V (MAX8536), V
CS
= V
CC
- 0.1V, R
TIMER
= 25kΩ, UVP = 2V, OVP = 1V, C
GATE
= 0.01µF, T
A
= 0°C to +85°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
TIMER = open (MAX8535/MAX8535A/
MAX8536)
524
Startup Reverse-Current Blank
Time
MAX8585 32
ms
Forward-Current Threshold Measured from V
CC
to CS 5 10 15 mV
OVERVOLTAGE PROTECTION
OVP rising
1.219 1.25 1.281
OVP Fault Threshold V
OVP
OVP falling
1.2
V
OVP Bias Current 0.2 µA
UNDERVOLTAGE PROTECTION
UVP rising threshold
1.219 1.25 1.281
UVP Fault Voltage V
UVP
UVP falling threshold
1.119 1.15 1.181
V
UVP Bias Current 0.4 µA