IRS21571D

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© 2008 International Rectifier

6

Recommended Operating Conditions

For proper operation the device should be used within the recommended conditions.

Symbol

Definition

Min.

Max.

Units

High Side Floating Supply Voltage

V

Steady State High Side Floating Supply Offset Voltage

-3.0

600

V

Supply Voltage

V

Supply Current

†

10

mA

VDC Pin Voltage

0

V

CT Pin Capacitance

220

---

pF

Deadtime Resistance

1.0

---

k

Ω

Over-Current (CS+) Threshold Programming Resistance

---

50

k

Ω

††

-500

-50

µA

††

0

450

µA

RUN Pin Current

††

0

450

µA

Shutdown Pin Current

-1

1

mA

Current Sense Pin Current

-1

1

mA

Junction Temperature

-40

125

ºC

†

Enough current should be supplied into the VCC pin to keep the internal 15.6V zener clamp diode on

this pin regulating its voltage.

††

Due to the fact that the RT input is a voltage-controlled current source, the total RT pin current is sum

of all of the parallel current sources connected to that pin. For optimum oscillator current mirror

performance, this total current should be kept between 50

μA and 500μA. During the preheat mode,

the total current flowing out of the RT pin consists of the RPH pin current plus the current due to the

RT resistor. During the run mode, the total RT pin current consists of the RUN pin current plus the

the current due to the RT resistor.