NIS5102 データシートの表示（PDF） - ON Semiconductor

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NIS5102

High Side SMART HotPlug IC/Inrush Limiter/Circuit Breaker

ON Semiconductor 

NIS5102

VCC

13

Ccharge

5

Voltage

Regulator

Thermal

Shutdown

Charge

Pump

Current

Limit

2

UVLO

1

OVLO

Undervoltage

Lockout

Common

Shutdown

Overvoltage

Shutdown

Enable/

Timer

Power

Good

3

Enable/Timer

Figure 1. Block Diagram

10, 11, 12

Source

6 Current Limit

7 Power Good

4 GND

PIN FUNCTION DESCRIPTION

Pin

Function

Description

1

OVLO

The overvoltage shutdown point is programmed by a resistor from this pin to the VCC supply. When

tied together with other devices, this pin also communicates a shutdown state due to undervoltage

and overtemperature reasons. All devices connected will simultaneously shutdown. Startup for this

condition may be simultaneous or sequenced.

2

UVLO

A resistor from VCC to the UVLO pin adjusts the voltage at which the device will turn on.

3

Enable/Timer A high level signal on this pin allows the device to begin operation. Connection of a capacitor will

delay turn on for timing purposes. A low input signal inhibits the operation, and communicates to any

other paralleled devices (via the OVLO pin) to shutdown. This signal can also be used to reset the

thermal latch.

4

Ground

Negative input voltage to the device. This is used as the internal reference for the IC.

5

Ccharge

An external capacitor is required from this pin to the source pin. This is the storage capacitor for the

internal charge pump. A small internal capacitor is included for noise filtering.

6

ILIMIT

A resistor (RLIMIT) tied from this pin to the source pin sets the current limit level.

7

Power Good A high impedance signal on this pin indicates that the power device is conducting.

8, 9

No Connection -

10, 11, 12

Source

Source of power FET, which is also the switching node for the load.

13

VCC

Positive input voltage to the device.

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