µ

PD166034T1U Datasheet

3. Specification

R07DS1168EJ0200 Rev.2.00

Page 25 of 39

May 22, 2015

Current sense output

The device output analog feedback current proportional to output current from IS pin. In the case of much higher

current than nominal load current, current sense output is saturated. In the case of much lower current than nominal load

current, current sense output is above 5µA if output current is above IL(CSE) max, current sense output is below 2µA,

IIS,offset max, if output current is below IL(CSE) min.

Sense current under fault condition

The device output IIS,fault, constant current, from IS pin under fault condition such as after over current detection,

during power limitation and during thermal toggling. IIS,fault is specified with RIS=1kΩ condition. IIS,fault is

attenuated depends on VCC-VIS voltage. Operation point as IIS,fault output is also depends on RIS condition. For

example, In the case of RIS=1kΩ, IIS,fault could be 3.5mA to 9mA, VCC-VIS could be 4.5V to 10V, VIS could be 9V

to 3.5V if VCC=13.5V. In the case of RIS is higher than 1kΩ, Operation point as IIS,fault is lower than specified value

but VIS should be higher than RIS=1kΩ condition.

VCC-VIS

VCC

IS

RIS

GND

VCC-VIS

VIS

VCC

IIS,fault

1kΩ load line

9mA

3.5mA

VCC

VCC-VIS

VIS

2µA

5µA