Intersil Corporation HIP1013, HOTSWAP Datasheet
2-406
HIP1013
Low Cost Dual Power Distribution
Controller
The HIP1013 is a low cost HOT SWAP dual supply power
distribution controller. Two external N-Channel MOSFETs
are driven to distribute power while providing load fault
isolation. At turn-on, the gate of each external N-Channel
MOSFET is charged with a 10µA current source. Capacitors
on each gate (see theTypical Application Diagram),createa
programmable ramp(soft turn-on) to control inrush currents.
A built in charge pump supplies the gate drive for the 12V
supply N-Channel MOSFET switch.
Over current protection is facilitated by two external current
sense resistors. When the current through either resistor
exceeds the user programmed value the N-Channel
MOSFETs are latched off by the HIP1013. The controller is
reset by a rising edge on either
PWRON pin.
Choosing the voltage selection mode the HIP1013 controls
either +12V/5V or +3.3V/+5V supplies.
Although pin compatible with the HIP1012 device, the
HIP1013 does not offer current regulation during an
OC event.
Features
• HOT SWAP Dual Power Distribution Control for +5V and
+12V or +5V and +3.3V
• Provides Fault Isolation
• Charge Pump Allows the Use of N-Channel MOSFETs
• Redundant Power On Controls
• Power Good and Over Current Latch Indicators
• Adjustable Turn-On Ramp
• Protection During Turn-On
Applications
• Power Distribution Control
• Hot Plug™ Components
Pinout
HIP1013 (SOIC)
TOP VIEW
Typical Application Diagram
Ordering Information
PART
NUMBER
TEMP. RANGE
(oC) PACKAGE PKG. NO.
HIP1013CB -0 to 70 14 Ld SOIC M14.15
HIP1013CB-T -0 to 70 14 Ld SOIC
Tape and Reel
M14.15
3/12VS
3/12VG
V
DD
PWRON2
5VG
5VS
3/12VISEN
GND
C
PUMP
NC
R
ILIM
PGOOD
5VISEN
MODE/
PWRON1
1
2
3
4
5
6
7
14
13
12
11
10
9
8
3/12VS
3/12VG
PWRON2
PGOOD
5VG
5VS
3/12VISEN
GND
NC
R
ILIM
C
PUMP
5ISEN
V
DD
HIP1013
12V
R
LOAD
R
ILIM
C
PUMP
R
SENSE
5V
R
LOAD
R
SENSE
5V
V
DD
C
GATE
C
GATE
M/PON1
POWER ON
INPUTS
Data Sheet May 1999 File Number
4516.2
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Hot Plug™ is a trademark of Core International, Inc.
http://www.intersil.com or 407-727-9207
| Copyright © Intersil Corporation 1999
2-407
Functional Diagram
V
DD
12VG
12VS
12ISEN
5VG
5VS
5ISEN
GND
MODE/
PGOOD
R
ILIM
C
PUMP
PWRON2
QPUMP
100µA
RISING
V
DD
RRS
QN
Q
POR
10µA
EDGE
RESET
C
PUMP
R
ILIM
12V
TO LOAD
TO LOAD
12VIN
5VIN
HIP1013
C
GATE
C
GATE
TO V
DD
+
-
R
SENSE
PGOOD
ENABLE
10µA
18V
+
-
12V
R
SENSE
NC
PWRON1
OC
OC
12V
18V
HIP1013
2-408
Pin Description
PIN NO. SYMBOL FUNCTION DESCRIPTION
1 12VS 12V Source Connect to source of associated external N-Channel MOSFET switch to sense output
voltage.
2 12VG 12V Gate Connect to the gate of associated N-Channel MOSFET switch. A capacitor from this
node toground setsthe turn-onramp. At turn-on this capacitor will be charged to ≈17.4V
bya10µA current source when in 5V/12V mode of operation, otherwise capacitor will be
charged to ≈11.4V.
3VDDChip Supply Connect to 12V supply. This can be either connected directly to the +12V rail supplying
the load voltage or to a dedicated VDD +12V supply.
4 MODE/
PWRON1
Power ON/ Reset invokes
3.3V operation when
shorted to VDD, Pin 3.
PWRON1 and PWRON2 are used to turn-on and reset the chip. Both outputs turn-on
wheneitherpin is driven low. After an over current limit fault, the chip is reset by the rising
edge of a reset signal applied to either PWRON pin. Each input has 100µA pull up
capability which is compatible with 3V and 5V open drain and standard logic. PWRON1
is also used to invoke 3.3V control operation in preference to +12V control. By tying pin
4 to pin 3 the charge pump is disabled and the UV threshold also shifts to ≈2.8V.
5 PWRON2 Power ON/Reset
6 5VG 5V Gate Connect to the gate of the external 5V N-Channel MOSFET. A capacitor from this node
to ground sets the turn-on ramp. At turn-on this capacitor will be charged to ≈11.4V by a
10µA current source.
7 5VS 5V Source Connect to the source side of 5V external N-Channel MOSFET switch to sense output
voltage.
8 5VISEN 5V Current Sense Connect to the load side of the 5V sense resistor to measure the voltage drop across this
resistor between 5VS and 5VISEN pins.
9 PGOOD Power Good Indicator PGOOD is driven by an open drain N-Channel MOSFET. It is pulled low when either
output voltage is not within specification or and OC condition exists.
10 No Connection.
11 C
PUMP
Charge Pump Capacitor Connect a 0.1µF capacitor between this pin and VDD (Pin 3).
12 GND Chip Ground
13 R
ILIM
Current Limit Set Resistor A resistor connected between this pin and ground determines the current level at which
current limit is activated. This current is determined by the ratio of the R
ILIM
resistor to
the sense resistor (R
SENSE
). The current at current limit onset is equal to
10µAx(R
ILIM/RSENSE
).
14 12VISEN 12V Current Sense Connect to the load side of sense resistor to measure the voltage drop across this
resistor.
HIP1013
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