Step immunity and no r, Sense, Electrical characteristics (continued) – Rainbow Electronics MAX5937 User Manual
Page 4
MAX5936/MAX5937
-48V Hot-Swap Controllers with V
IN
Step Immunity and No R
SENSE
4
_______________________________________________________________________________________
Note 1:
All currents into pins are positive and all currents out of pins are negative. All voltages referenced to V
EE
, unless otherwise
specified.
Note 2:
All limits are 100% tested at +25°C and +85°C. Limits at -40°C and -10°C are guaranteed by characterization.
Note 3:
Delay time from a valid on-condition until the load probe test begins.
Note 4:
V
EE
or UVLO voltages below V
UVLO,F
or V
UVLO_REF,F
, respectively, are ignored during this time.
Note 5:
The time (V
OUT
- V
EE
) > V
SC
+ overdrive until (V
GATE
- V
EE
) drops to approximately 90% of its initial high value.
Note 6:
The time when the PGOOD (PGOOD) condition is met until the PGOOD (PGOOD) signal is asserted.
ELECTRICAL CHARACTERISTICS (continued)
(V
EE
= -10V to -80V, V
IN
= GND - V
EE
, V
STEP_MON
= V
EE
, R
LP
= 200Ω, UVLO open, T
A
= -40°C to +85°C, unless otherwise noted.
Typical values are at V
EE
= -48V, T
A
= +25°C.) (Notes 1, 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LOGIC AND FAULT MANAGEMENT
Autoretry Delay
t
RETRY
16 x
t
LP
s
|V
OUT
- V
EE
| falling
0.74 x
V
CB
PGOOD (PGOOD) Assertion
Threshold
Hysteresis
0.26 x
V
CB
mV
PGOOD (PGOOD) Assertion Delay
Time (Note 6)
0.67
1.26
1.85
ms
PGOOD (PGOOD) Low Voltage
V
OL
I
SINK
= 1mA, referenced to V
OUT,
V
OUT
< GND - 5V for PGOOD (PGOOD)
0.05
0.4
V
PGOOD (PGOOD) Open-Drain
Leakage
I
L
V
EE
= -80V, V
PGOOD(PGOOD)
,
V
PGOOD(PGOOD)
= GND
0.01
1
µA