Datasheet

MAX5934/MAX5934A
Positive High-Voltage, Hot-Swap Controllers with
Selectable Fault Management and Status Polarity
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +24V (MAX5934A), V
CC
= +48V (MAX5934), GND = 0V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at
T
A
= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
(Voltages referenced to GND.)
V
CC
.........................................................................-0.3V to +85V
SENSE, FB_, ON.........................................-0.3V to (V
CC
+ 0.3V)
TIMER, PWRGD_, DC, LATCH/RETRY, POL_SEL ....-0.3V to +85V
GATE ......................................................................-0.3V to +95V
OUT ................................................(V
GATE
- 14V) to the lower of
(V
GATE
+ 0.3V) and (V
CC
+ 0.3V)
Maximum GATE Current ....................................-50mA, +150mA
Maximum Current into Any Other Pin................................±50mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW
Operating Temperature Range ...........................-40°C to +85°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-60°C to +150°C
ESD Rating (Human Body Model)......................................2000V
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX5934A 9 80
Supply Voltage Range V
CC
MAX5934 33 80
V
Supply Current I
CC
V
ON
= 3V, V
CC
= 80V 1.4 3.5 mA
MAX5934A 7.5 8.3 8.8
V
CC
Undervoltage Lockout V
LKO
V
CC
low-to-high
transition
MAX5934 29.5 31 32.5
V
MAX5934A 0.4
V
CC
Undervoltage-Lockout
Hysteresis
V
LKOHYST
MAX5934 2
V
FB1 High-Voltage Threshold V
FB1H
FB1 low-to-high transition 1.280 1.313 1.345 V
FB2 High-Voltage Threshold V
FB2H
FB2 low-to-high transition 1.280 1.313 1.345 V
FB1 Low-Voltage Threshold V
FB1L
FB1 high-to-low transition 1.221 1.233 1.245 V
FB2 Low-Voltage Threshold V
FB2L
FB2 high-to-low transition 1.202 1.264 V
FB_ Hysteresis V
FBHYST
80 mV
FB_ Input Bias Current I
INFB
V
FB_
= 0V -1 +1 µA
FB1 Threshold Line Regulation ∆V
FB1
V
CC(MIN)
≤ V
CC
≤ 80V, MAX5934A,
ON = 0V
0.05 mV/V
FB2 Threshold Line Regulation ∆V
FB2
V
CC(MIN)
≤ V
CC
≤ 80V, MAX5934A,
ON = 0V
0.05 mV/V
V
FB_
= 0V, T
A
= 0°C to +70°C 8 12 17
SENSE Trip Voltage
(V
CC
- V
SENSE
)
V
SENSETRIP
V
FB_
= 1V, T
A
= 0°C to +70°C394755
mV
GATE Pullup Current I
GATEUP
Charge pump on, V
GATE
= 7V -5 -10 -20 µA
GATE Pulldown Current I
GATEDN
Any fault condition, V
GATE
= 2V 35 70 100 mA
(V
GATE
- V
CC
) at PWRGD3
Assertion
∆V
GAT E P WRGD 3
V
GATE
- V
CC
, low-to-high transition 3.8 4.3 5 V
V
GATE
- V
CC
, MAX5934 10 13.6 18
V
CC
= 10.8V to 20V 4.5 13.6 18.0External N-Channel Gate Drive ∆V
GATE
V
GATE
- V
CC
,
MAX5934A
V
CC
= 20V to 80V 10 13.6 18
V
TIMER Pullup Current I
TIMERUP
V
TIMER
= 0V -24 -75 -120 µA