-48V Hot-Swap Controllers
with External R
SENSE
_______________________________________________________________________________________   3
ELECTRICAL CHARACTERISTICS (continued)
(V
EE
= 0V, V
DD
= 48V, T
A
= -40癈 to +85癈. Typical values are at T
A
= +25癈, unless otherwise noted.) (Notes 2, 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
PWRGD, PWRGD Output
Leakage
I
OH
V
PWRGD
 (MAX5948A) = 80V, V
DRAIN
 = 48V,
V
PWRGD
 (MAX5948B) = 80V, V
DRAIN
 = 0V
10
Power-Good Output Impedance
(PWRGD to DRAIN)
R
OUT
V
PWRGD
 (MAX5948B) (V
DRAIN
 - V
EE
) < V
PG
500 x
10
3
M&
PWRGD Output Low Voltage
V
OL
V
PWRGD
 - V
EE;
 V
DRAIN
 - V
EE
< V
PG
,
I
OUT
 = 1mA (MAX5948A)
0.11
0.4
V
PWRGD Output Low Voltage
V
OL
V
PWRGD
 - V
DRAIN
; V
DRAIN
 = 5V,
I
OUT
 = 1mA (MAX5948B)
0.11
0.4
V
AC PARAMETERS
OV High to GATE Low
t
PHLOV
Figures 2, 3
0.5
UV Low to GATE Low
t
PHLUV
Figures 2, 4
0.4
OV Low to GATE High
t
PLHOV
Figures 2, 3
3.3
UV High to GATE High
t
PLHVL
Figures 2, 4
3.4
SENSE High to GATE Low
t
PHLSENSE
Figures 2, 5
2
3
4
MAX5948A, Figures 2, 6
0.5
DRAIN Low to PWRGD Low
DRAIN Low to (PWRGD - DRAIN)
High
t
PHLPG
MAX5948B, Figures 2, 6
0.5
MAX5948A, Figures 2, 6
0.5
DRAIN High to PWRGD High
DRAIN High to (PWRGD -
DRAIN) Low
t
PLHPG
MAX5948B, Figures 2, 6
0.5
Note 2: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to V
EE
,
unless otherwise specified.
Note 3: Limits are 100% tested at T
A
= +25癈 and +85癈. Limits at -40癈 are guaranteed by design.
2V
100mA MAX
MAX5948
PWRGD/PWRGD
OV
UV
V
EE
V
DD
DRAIN
GATE
TEST VOLTAGE
SENSE
Figure 1. -2V DRAIN Voltage Test Circuit
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