MOTOROLA MC33365P Datasheet

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The MC33365 is a monolithic high voltage switching regulator that is specifically designed to operate from a rectified 240 Vac line source. This integrated circuit features an on–chip 700 V/1.0 A SenseFET power switch, 450 V active off–line startup FET, duty cycle controlled oscillator, current limiting comparator with a programmable threshold and leading edge blanking, latching pulse width modulator for double pulse suppression, high gain error amplifier, and a trimmed internal bandgap reference. Protective features include cycle–by–cycle current limiting, input undervoltage lockout with hysteresis, bulk capacitor voltage sensing, and thermal shutdown. This device is available in a 16–lead dual–in–line package.

• On–Chip 700 V, 1.0 A SenseFET Power Switch

• Rectified 240 V ac Line Source Operation

• On–Chip 450 V Active Off–Line Startup FET

• Latching PWM for Double Pulse Suppression

• Cycle–By–Cycle Current Limiting

• Input Undervoltage Lockout with Hysteresis

• Bulk Capacitor Voltage Comparator

• Trimmed Internal Bandgap Reference

• Internal Thermal Shutdown

HIGH VOLTAGE

OFF–LINE

SWITCHING REGULATOR

SEMICONDUCTOR

TECHNICAL DATA

16

1

P SUFFIX

PLASTIC PACKAGE

CASE 648E

(DIP–16)

AC Input

Regulator

Output

8

6

R

T

C

7

T

Mirror

Osc

PWM

Thermal

Gnd 4, 5, 12, 13

Simplified Application

Startup Input

Startup

Reg

PWM Latch

Driver

S

Q

R

I

pk

LEB

EA

1

UVLO

BOK

V

CC

3

BOK

11 16

Power Switch Drain

Compensation

9

10

Voltage Feedback Input

DC Output

PIN CONNECTIONS

Startup Input

V

CC

Gnd

R

T

C

T

Regulator Output

ORDERING INFORMATION

Device

116

3 4 5 6 7 8

(Top View)

Operating

Temperature Range

Power Switch Drain

13

Gnd

12

BOK

11

Voltage Feedback

10

Input Compensation

9

Package

MOTOROLA ANALOG IC DEVICE DATA

MC33365P DIP–16

 Motorola, Inc. 1999 Rev 1

TJ = –25° to +125°C

1

MAXIMUM RATINGS

Á

ÁÁÁ

ÁÁÁ ÁÁÁ

Á

ÁÁÁ

Á

ÁÁÁ

Á

ÁÁÁ

Á

ÁÁÁ

Á

ÁÁÁ

Á

ÁÁÁ

Á

ÁÁÁ

Á

Rating Symbol Value Unit

Power Switch (Pin 16)

Drain Voltage

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Drain Current

Startup Input Voltage (Pin 1, Note 1)

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Pin 3 = Gnd Pin 3 ≤ 1000 µF to ground

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Power Supply Voltage (Pin 3) Input Voltage Range

Voltage Feedback Input (Pin 10)

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Compensation (Pin 9) Bulk OK Input (Pin 11)

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RT (Pin 6)

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CT (Pin 7)

Thermal Characteristics

P Suffix, Dual–In–Line Case 648E

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Thermal Resistance, Junction–to–Air Thermal Resistance, Junction–to–Case

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Operating Junction Temperature Storage Temperature

NOTE: ESD data available upon request.

V

DS

ÁÁ

I

DS

V

in

ÁÁ

V

CC

V

IR

ÁÁ

R

θJA

R

ÁÁ

θJC T

J

T

stg

MC33365

700

ÁÁÁ

400 500

ÁÁÁ

–1.0 to V

ÁÁÁ

–25 to +150 –55 to +150

1.0

40

80 15

reg

V

Á

A V

Á

V V

Á

°C/W

Á

°C °C

ELECTRICAL CHARACTERISTICS (V

= 20 V, RT = 10 k, CT = 390 pF, C

CC

= 1.0 µF, for typical values TJ = 25°C,

Pin 8

for min/max values TJ is the operating junction temperature range that applies (Note 2), unless otherwise noted.)

Characteristic

Symbol Min Typ Max Unit

REGULAT OR (Pin 8)

Output Voltage (IO = 0 mA, TJ = 25°C) Line Regulation (VCC = 20 V to 40 V) Load Regulation (IO = 0 mA to 10 mA) Total Output Variation over Line, Load, and Temperature

V

Reg

V

reg

load

reg

line

5.5

5.3

6.5 – –

30 44

–

7.5 500 200

8.0

V mV mV

V

OSCILLAT OR (Pin 7)

Frequency

CT = 390 pF

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TJ = 25°C (VCC = 20 V) TJ = T

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CT = 2.0 nF

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TJ = 25°C (VCC = 20 V) TJ = T

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Frequency Change with Voltage (VCC = 20 V to 40 V)

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ERROR AMPLIFIER (Pins 9, 10)

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Voltage Feedback Input Threshold

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Line Regulation (VCC = 20 V to 40 V, TJ = 25°C)

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Input Bias Current (VFB = 2.6 V, TJ = 0 – 125°C)

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Open Loop Voltage Gain (TJ = 25°C)

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

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Output Voltage Swing

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High State (I Low State (I

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NOTES: 1. Maximum power dissipation limits must be observed.

low

to T

(VCC = 20 V to 40 V)

high

(VCC = 20 V to 40 V)

high

= 100 µA, VFB < 2.0 V)

Source

= 100 µA, V

Sink

> 3.0 V)

FB

2.Tested junction temperature range for the MC33363B: T

= –25°CT

low

high

= +125°C

f

OSC

ÁÁÁ

∆f

/∆V

OSC

ÁÁÁ

V

FB

ÁÁÁ

Reg

line

ÁÁÁ

I

IB

ÁÁÁ

A

VOL

ÁÁÁ

GBW

ÁÁÁ

V

OH

V

ÁÁÁ

OL

ÁÁ

260 255

ÁÁ

60 59

ÁÁ

–

ÁÁ

2.52

ÁÁ

ÁÁ–ÁÁ

–

ÁÁ

70

ÁÁ

0.85

ÁÁ

4.0 –

ÁÁ

285

–

ÁÁ

67.5 –

ÁÁ

0.1

ÁÁ

2.6

ÁÁ

0.6 20

ÁÁ

82

ÁÁ

1.0

ÁÁ

5.3

0.2

ÁÁ

310 315

ÁÁ

75 76

ÁÁ

2.0

ÁÁ

2.68

ÁÁ

5.0

ÁÁ

500

ÁÁ

94

ÁÁ

1.15

ÁÁ

–

0.35

ÁÁ

kHz

ÁÁ

kHz

ÁÁ

V

ÁÁ

mV

ÁÁ

nA

ÁÁ

dB

ÁÁ

MHz

ÁÁ

V

ÁÁ

2

MOTOROLA ANALOG IC DEVICE DATA

MC33365

ÁÁÁ

ÁÁÁ ÁÁÁ

Á

ÁÁÁ

Á

ÁÁÁ

Á

ÁÁÁ

Á ÁÁÁ

ÁÁÁ

Á

ÁÁÁ

Á ÁÁÁ

ÁÁÁ ÁÁÁ

Á

ÁÁÁ

Á

ELECTRICAL CHARACTERISTICS (continued) (V

= 20 V, RT = 10 k, CT = 390 pF, C

CC

= 1.0 µF, for typical values TJ = 25°C,

Pin 8

for min/max values TJ is the operating junction temperature range that applies (Note 2), unless otherwise noted.)

Characteristic UnitMaxTypMinSymbol

BULK OK (Pin 11)

Input Threshold Voltage Input Bias Current (VBK < Vth, TJ = 0 – 125°C) Source Current (Turn on after VBK > Vth, TJ = 25°C – 125°C)

V

I

IB

SC

th

1.18 –

1.25 100

39

PWM COMPARATOR (Pins 7, 9)

Duty Cycle

Maximum (VFB = 0 V)

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Minimum (VFB = 2.7 V)

DC

(max)

ÁÁÁ

DC

(min)

48

ÁÁ

–

ÁÁ

POWER SWITCH (Pin 16)

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

TJ = 25°C

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TJ = T

low

to T

high

Drain–Source Off–State Leakage Current

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VDS = 650 V Rise Time Fall Time

R

DS(on)

ÁÁÁ

I

D(off)

ÁÁÁ

t

r

t

f

–

ÁÁ

–

ÁÁ

– – –

ÁÁ

OVERCURRENT COMPARATOR (Pin 16)

Current Limit Threshold (RT = 10 k)

I

lim

0.5

0.72

STARTUP CONTROL (Pin 1)

Peak Startup Current (Vin = 400 V) (Note 3)

VCC = 0 V

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VCC = (V

th(on)

– 0.2 V)

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

I

start

ÁÁÁ

I

D(off)

–

ÁÁ

– –

ÁÁ

UNDERVOLTAGE LOCKOUT (Pin 3)

Startup Threshold (VCC Increasing) Minimum Operating Voltage After Turn–On

V

th(on)

V

CC(min)

11

7.5

15.2

TOTAL DEVICE (Pin 3)

Power Supply Current

Startup (V

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Operating

NOTES: 3. The device can only guarantee to start up at high temperature below +115°C.

= 10 V, Pin 1 Open)

CC

I

CC

ÁÁÁ

–

ÁÁ

–

0.25

ÁÁ

50

15

0.2 50 50

2.0

2.0 40

9.5

3.2

1.32 500

–

53

V nA µA

%

52

0

ÁÁ

0

Ω

17

–

ÁÁ

39

ÁÁ

µA

ÁÁ

100

– –

0.9

ÁÁ

ns ns

A

mA

4.0

ÁÁ

11.5

4.0

200

18

ÁÁ

µA

V

mA

0.5

ÁÁ

5.0

ÁÁ

Figure 1. Oscillator Frequency

versus Timing Resistor

1.0 M

CT = 100 pF

500 k

CT = 200 pF

CT = 500 pF

200 k

CT = 1.0 nF

100 k

CT = 2.0 nF

50 k

, OSCILLAT OR FREQUENCY (Hz)

CT = 5.0 nF

20 k

OSC

f

CT = 10 nF

10 k

7.0

10 15 20 30 50

RT, TIMING RESISTOR (kΩ)

MOTOROLA ANALOG IC DEVICE DATA

VCC = 20 V

°

C

TA = 25

70

Figure 2. Power Switch Peak Drain Current

versus Timing Resistor

1.0

0.8

0.6

0.4

0.3

0.2

0.15

Inductor supply voltage and inductance value are adjusted so that Ipk turn–off is achieved at 5.0

, POWER SWITCH PEAK DRAIN CURRENT (A)

0.1

PK

7.0 10 15 20 30 40 7050

I

RT, TIMING RESISTOR (kΩ)

µ

s.

VCC = 20 V

µ

CT = 1.0 TA = 25

F

°

C

3

0.8

0.5

Figure 3. Oscillator Charge/Discharge

Current versus Timing Resistor

VCC = 20 V TA = 25

MC33365

°

C

Figure 4. Maximum Output Duty Cycle

versus Timing Resistor Ratio

70

60

RD/RT Ratio Discharge Resistor Pin 6 to Gnd

VCC = 20 V CT = 2.0 nF

°

C

TA = 25

0.3

, OSCILLAT OR

0.2

dscg

/I

0.15

chg

I

0.1

CHARGE/DISCHARGE CURRENT (mA)

0.08

7.0

100

80

60

40

20

, OPEN LOOP VOL TAGE GAIN (dB)

0

VOL

A

–20

10

50

40

, MAXIMUM OUTPUT DUTY CYCLE (%)

max

D

, OUTPUT SA TURATION VOLTAGE (V) V

sat

30

–1.0

– 2.0

2.0

1.0

1.0 TIMING RESISTOR RA TIO

Figure 6. Error Amp Output Saturation

V oltage versus Load Current

0

Source Saturation

(Load to Ground)

Sink Saturation

(Load to V

0

IO, OUTPUT LOAD CURRENT (mA)

ref

)

10 15 20 30 70 2.0 3.0 5.0 7.0 10

RT, TIMING RESISTOR (kΩ)

50

Figure 5. Error Amp Open Loop Gain and

Phase versus Frequency

VCC = 20 V VO = 1.0 to 4.0 V

Gain

Phase

100 1.0 k 10 k 100 k 1.0 M 10 M 0.2 0.4 0.6 0.8 1.0

f, FREQUENCY (Hz)

RL = 5.0 M CL = 2.0 pF TA = 25

Ω

°

C

0

30

60

90

120

, EXCESS PHASE (DEGREES)

θ

150

180

RC/RT Ratio Charge Resistor Pin 6 to V

V

ref

VCC = 20 V TA = 25

Gnd

°

reg

C

1.80 V

1.75 V

1.70 V

4

Figure 7. Error Amplifier Small Signal

Transient Response

VCC = 20 V AV = –1.0 CL = 10 pF TA = 25

1.0 µs/DIV

Figure 8. Error Amplifier Large Signal

Transient Response

VCC = 20 V AV = –1.0

°

C

20 mV/DIV

3.00 V

1.75 V

0.50 V

1.0 µs/DIV

CL = 10 pF

°

C

TA = 25

0.5 V/DIV

MOTOROLA ANALOG IC DEVICE DATA

MOTOROLA MC33365P Datasheet

Specifications and Main Features

Frequently Asked Questions

User Manual