HIP1013 データシートの表示（PDF） - Intersil

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HIP1013

Low Cost Dual Power Distribution Controller

Intersil 

HIP1013

Typical Performance Curves (Continued)

102.5

10.2

102.0

12 OC VTth

10.0

101.5

9.8

101.0

5 OC Vth

VDD LOW TO HIGH

VDD HIGH TO LOW

100.5

-40

-20

0

20

40

60

80

TEMPERATURE (°C)

FIGURE 7. OC VOLTAGE THRESHOLD WITH = RILIM 10kΩ

HIP1013 Description and Operation

The HIP1013 offers the designer a cost efficient 5V and 12V

true hot plug controller. This device drives two external

N-Channel MOSFET switches and uses a charge pump to

provide ≈17V to drive the gate of the 12V supply switch. The

HIP1013 features Over Current (OC) programing with a

single external resistor, RILIM and during turn-on, the gate

capacitor of each external N-Channel MOSFET is charged

with a 10µA current source. These capacitors create a

programmable ramp (soft turn-on).

Upon initial power up, the HIP1013 can either isolate the

voltage supply from the load by holding the external

N-Channel MOSFET switches off or apply the supply rail

voltage directly to the load for true hot swap capability. In

either case the HIP1013 turns on in a soft start mode

protecting the supply rail from sudden current loading.

The load currents pass through two external current sense

resistors. When the voltage across either resistor exceeds

the user programmed Over Current (OC) voltage threshold

value, (see Table 1) the HIP1013 controller turns both

N-Channel MOSFETs off in ≈ 2µs.

TABLE 1.

RILIM RESISTOR

15K

NOMINAL OC VTH

150mv

10K

100mV

7.5K

75mV

4.99K

50mV

NOTE: Nominal OC Vth = RILIM x 10 µA

The HIP1013 is reset by a rising edge on either PWRON pin

and is turned on by either PWRON pin being driven low. The

HIP1013 can control either +12V/5V or +3.3V/+5V supplies.

Tying the PWRON1 pin to VDD, invokes the +3.3V/+5V

voltage mode. In this mode, the external charge pump

capacitor is not needed and CPUMP, pin 11 is also tied

9.6

-40 -30 -20 -10 0 10 20 30 40 50 60 70 80

TEMPERATURE (°C)

FIGURE 8. POWER ON RESET VOLTAGE THRESHOLD

directly to VDD. Upon any OC or Under Voltage (UV)

condition the PGOOD fault indicating signal will pull low

when tied high through a resistor to the logic supply.

6

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