MC33362_06 datasheet(3/14 Pages) ONSEMI

Part #	MC33362

Description	High Voltage Switching Regulator

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MC33362

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ELECTRICAL CHARACTERISTICS (continued) (VCC = 20 V, RT = 10 k, CT = 390 pF, CPin 8 = 1.0 mF, for typical values TJ = 25°C,

for min/max values TJ is the operating junction temperature range that applies (Note 3), unless otherwise noted.)

Characteristic

Unit

Max

Typ

Min

Symbol

ERROR AMPLIFIER (Pins 9, 10)

Open Loop Voltage Gain (TJ= 25°C)

AVOL

−

82

−

dB

Gain Bandwidth Product (f = 100 kHz, TJ= 25°C)

GBW

−

1.0

−

MHz

Output Voltage Swing

High State (ISource = 100 mA, VFB < 2.0 V)

Low State (ISink = 100 mA, VFB > 3.0 V)

VOH

VOL

4.0

−

5.3

0.2

−

0.35

V

OVERVOLTAGE DETECTION (Pin 11)

Input Threshold Voltage

Vth

2.47

2.6

2.73

V

Input Bias Current (Vin = 2.6 V)

IIB

−

100

500

nA

PWM COMPARATOR (Pins 7, 9)

Duty Cycle

Maximum (VFB = 0 V)

Minimum (VFB = 2.7 V)

DC(max)

DC(min)

48

−

50

0

52

0

%

POWER SWITCH (Pin 16)

Drain−Source On−State Resistance (ID = 200 mA)

TJ = 25°C

TJ = Tlow to Thigh

RDS(on)

−

4.4

−

6.0

12

W

Drain−Source Off−State Leakage Current (VDS = 500 V)

ID(off)

−

0.2

50

mA

Rise Time

tr

−

50

−

ns

Fall Time

tf

−

50

−

ns

OVERCURRENT COMPARATOR (Pin 16)

Current Limit Threshold (RT = 10 k)

Ilim

0.7

0.9

1.1

A

STARTUP CONTROL (Pin 1)

Peak Startup Current (Vin = 50 V) (TJ = −25°C to 100°C)

VCC = 0 V

VCC = (Vth(on) − 0.2 V)

Istart

2.0

5.0

8.0

mA

Off−State Leakage Current (Vin = 50 V, VCC = 20 V)

ID(off)

−

40

200

mA

UNDERVOLTAGE LOCKOUT (Pin 3)

Startup Threshold (VCC Increasing)

Vth(on)

11

14.5

18

V

Minimum Operating Voltage After Turn−On

VCC(min)

7.5

9.5

11.5

V

TOTAL DEVICE (Pin 3)

Power Supply Current

Startup (VCC = 10 V, Pin 1 Open)

Operating

ICC

−

0.3

3.6

0.5

5.0

mA

2. Maximum power dissipation limits must be observed.

3. Tested junction temperature range for the MC33362:

Tlow = −25°CThigh = +125°C

4. Tested junction temperature range for the MC33362:

Tlow = −25°CThigh = +125°C

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