NIS6201

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2

PIN FUNCTION DESCRIPTION

Pin

Symbol

Description

1, 2

N/C

No connection.

3

SIGGND

Ground reference pin for control circuits. This should be connected to power ground on the PCB.

4

COMP

The feedback and compensation network of the linear regulator are connected to this pin.

5

Input power to chip. There is an internal clamp at 15 V to allow for a shunt regulator circuit on this pin for

high voltage inputs.

6

This is the regulated output of the internal linear regulator.

7

DRIVE

Output drive of oscillator, that drives external diode/capacitor network.

8

PWRGND

Ground reference pin for driver current.

MAXIMUM RATINGS

Rating

Symbol

Value

Unit

Input Voltage, Operating (Note 1)

−0.3 to 15

V

Comp pin Voltage

4.5

V

Drive Current, Peak

3.0

A

Drive Current, Average

0.05

A

Thermal Resistance, Junction−to−Air

Min copper area

175

114

°C/W

Thermal Resistance, Junction−to−Lead (Pin 1)

41

°C/W

Min copper area

.57

.88

W

Operating Temperature Range

−40 to 125

°C

Non−operating Temperature Range

−55 to 150

°C

Lead Temperature, Soldering (10 Sec)

260

°C

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values

(not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage

may occur and reliability may be affected.

1. Above this voltage, a series resistor is necessary to limit current into the shunt regulator.

Characteristic

Symbol

Min

Typ

Max

Unit

OSCILLATOR

Frequency

0.9

1.3

1.45

MHz

DRIVER

On Resistance, High Side FET

−

9.5

−

W

On Resistance, Low Side FET

−

9.5

12

W

LINEAR REGULATOR

Reference Voltage, Pin 4

490

475

500

505

510

525

mV

−

155

220

mV

TOTAL DEVICE

Minimum Operational Input Voltage

7.0

−

−

V

Bias Current (Operational)

−

3.6

4.6

mA

Bias Current (COMP Pin = 600 mV)

−

3.0

3.6

mA

14.5

15

−

V