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MAX5934AEEE+

P1-P3P4-P6P7-P9P10-P12P13-P15
General Description
The MAX5934/MAX5934A are fully integrated hot-swap
controllers for +9V to +80V (MAX5934A) positive supply
rails. The MAX5934 is optimized for +33V to +80V
power-supply rails. These devices allow for the safe
insertion and removal of circuit cards into a live back-
plane without causing glitches on the backplane
power-supply rail. The MAX5934/MAX5934A feature a
programmable analog foldback current limit, program-
mable undervoltage lockout, and programmable out-
put-voltage slew rate through an external n-channel
MOSFET. In addition, if these devices remain in current
limit for more than a programmable time, the external
n-channel MOSFET latches off.
The MAX5934/MAX5934A feature pin-selectable
PWRGD_ assertion polarity (active low or active high)
and pin-selectable fault management (latched or
autoretry). Other features include automatic restart after
a circuit-breaker fault, selectable duty-cycle (DC)
options, and thermal-shutdown mode for overtempera-
ture protection.
The MAX5934/MAX5934A operate in the extended
(-40°C to +85°C) temperature range and are available
in a 16-pin QSOP package.
Applications
Hot Board Insertion
Electronic Circuit Breakers
Industrial High-Side Switch/Circuit Breakers
Network Routers and Switches
24V/48V Industrial/Alarm Systems
Features
♦ Provides Safe Hot Swap for +9V to +80V Power
Supplies (MAX5934A)
♦ Safe Board Insertion and Removal from a Live
Backplane
♦ Pin-Selectable Active-Low or Active-High Power-
Good Output
♦ Pin-Selectable Latched or Autoretry Fault
Management
♦ Programmable Foldback Current Limiting
♦ High-Side Drive for an External N-Channel MOSFET
♦ Built-In Thermal Shutdown
♦ Undervoltage Lockout (UVLO)
♦ Pin-Selectable Duty-Cycle Options (0.94%, 1.88%,
3.75%)
MAX5934/MAX5934A
Positive High-Voltage, Hot-Swap Controllers with
Selectable Fault Management and Status Polarity
________________________________________________________________ Maxim Integrated Products 1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
LATCH/RETRY
V
CC
DC
SENSE
N.C.
FB2
GATE
TIMER
OUT
TOP VIEW
MAX5934
MAX5934A
QSOP
ON
POL_SEL
PWRGD1
FB1
PWRGD2
PWRGD3
GND
Pin Configuration
Ordering Information
PART
DEFAULT UVLO
(V)
SUPPLY VOLTAGE
RANGE (V)
LATCHED/
AUTORETRY FAULT
PROTECTION
DUTY CYCLE
PWRGD_
OUTPUT LOGIC
MAX5934 31 +33 to +80 Pin-selectable Pin-selectable Pin-selectable
MAX5934A 8.3 +9 to +80 Pin-selectable Pin-selectable Pin-selectable
Selector Guide
19-3282; Rev 1; 7/04
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Typical Application Circuit appears at end of data sheet.
PART TEMP RANGE PIN-PACKAGE
MAX5934EEE -40°C to +85°C 16 QSOP
MAX5934AEEE -40°C to +85°C 16 QSOP
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
MAX5934/MAX5934A
Positive High-Voltage, Hot-Swap Controllers with
Selectable Fault Management and Status Polarity
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(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)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DC = 3.75%, DC = floating 1.5 3 4.5
DC = 1.88%, DC = high 0.75 1.5 2.25
TIMER Pulldown Current I
TIMERON
V
TIMER
= 1V
DC = 0.94%, DC = low 0.37 0.75 1.12
µA
ON High Threshold V
ONH
ON low-to-high transition 1.280 1.313 1.355 V
ON Low Threshold V
ONL
ON high-to-low transition 1.221 1.233 1.245 V
ON Hysteresis V
ONHYST
80 mV
ON Input Bias Current I
INON
V
ON
= 0V -1 +1 µA
LATCH/RETRY and POL_SEL
Low-Voltage Threshold
V
LRIL
,
V
POS_SEL_IL
0.4 V
LATCH/RETRY and POL_SEL
High-Voltage Threshold
V
LRIH
,
V
POS_SEL_IH
3.2 V
V
POL_SEL
= 80V 4.5
LATCH/RETRY and POL_SEL
Input Current
I
LR_IN
,
I
POS_SEL_IN
V
POL_SEL
= 0V -37
µA
Source GATE Clamp Voltage V
SGZ
V
GATE
- V
OUT
15 16.4 19 V
I
O
= 2mA 0.4
PWRGD_ Output Low Voltage V
OL
I
O
= 4mA 2.5
V
PWRGD_ Leakage Current I
OH
V
PWRGD_
= 80V 10 µA
Thermal Shutdown Temperature rising +150 °C
Thermal-Shutdown Hysteresis 20 °C
SENSE Input Bias Current I
SENSE
V
SENSE
= 0 to V
CC
-1 +3 µA
DC High-Voltage Threshold 1 V
DCHTH
Ri si ng ed g e, D C tr ansi ti on fr om 3.75% to
1.88%
2.150 2.600 2.850 V
DC High-Voltage Threshold 2 V
DCLTH
Ri si ng ed g e, D C tr ansi ti on fr om 0.94% to
3.75%
1.075 1.250 1.425 V
DC High-Voltage Threshold 1
Hysteresis
V
DCLHYS
45 mV
DC High-Voltage Threshold 2
Hysteresis
V
DCLHYS
45 mV
DC Input Open-Circuit Voltage V
DCOC
1.9 V
DC Input Impedance R
DC_IN
57 kΩ
V
_DC
= 80V 50
DC Input Current I
DC_IN
V
_DC
= 0V -34
µA
ON Low-to-GATE Low
Propagation Delay
t
PHLON
C
GATE
= 0, Figures 1 and 2 6 µs
ON High-to-GATE High
Propagation Delay
t
PLHON
C
GATE
= 0, Figures 1 and 2 1.7 µs
P1-P3P4-P6P7-P9P10-P12P13-P15

MAX5934AEEE+

Mfr. #:
Buy MAX5934AEEE+
Manufacturer:
Maxim Integrated
Description:
Hot Swap Voltage Controllers Positive Hot-Swap Controller
Lifecycle:
New from this manufacturer.
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