Datasheet HA16666FP Datasheet (HIT)

HA16666P/FP

600kHz PWM Controlled Switching Regulator

Description

The HA16666P/FP is a voltage mode PWM (pulse width modulation) control IC for switching regulator control. It can drive a power MOS FET efficiently on 600 kHz. Its stanby current is 0.3 mA (max), and it is used as the primary control power supply.

Functions

• +5 V reference voltage circuit

• Triangular waveform oscillator

• PWM comparator

• Output circuit (Totem pole output)

• Overcurrent protection circuit (with one-pulselatch mode)

• Undervoltage lockout protectoin circuit

• Soft start and quick shutdown function

• Remote control function

• Comparator with internal 1.3 V reference voltage

Features

• High-speed switching;

tr = 80 ns (15 V amplitude) tf = 40 ns (15 V amplitude)

• Low power dissipation;

0.3 mA max in standby state 12 mA max in operation state (VIN = 15 V)

• Dual-slope highly accurate dead-band duty setup circuit; Setup accuracy Du = ±3% (max)

• Wide output pulse width control range; 0 to 75%

HA16666P/FP

• Undervoltage lockout protection;

VIN high threshold voltage 10 V typ VIN low threshold voltage 8 V typ

• Two input threshold voltage for overcurrent protection cmparator;

fixed voltage (1.3 V) variable voltage

• Double pulse output protection by overcurrent protection circuit with one-pulse latch mode

• Wide input supply voltage range; VCC = 11 to 40 V

Ordering Information

Type Package

HA16666P DP-16 HA16666FP FP-16DA

2

Pin Arrangement

HA16666P/FP

E/I ST C

R

T1

R

T2

OSC Out

GND

N.C

1 2 3

T

4 5 6 7 8

16 15 14 13 12 11 10

9

N.INV

–

INV CS Vref V

IN

RM OUT N.C

+

(Top View)

Pin Functions

Pin No. Symbol Descreption

1 E/I Error input 2 ST Soft start 3C

T

4RT1Timing resistor (rise section) 5RT2Timing resistor (fall section) 6 OSC Out Triangular waveform oscillator 7 GND Ground 8 N.C No connect 9 N.C No connect 10 OUT Pulse output 11 RM Remote control 12 V

IN

13 Vref Reference voltage (5 V) output 14 CS Comparator input (–) with reference voltage (1.3 V) 15 INV 16 N.INV

–

+

Timing capacitance

Power supply voltage

Comparator input (–) for overcurrent protection Comparator input (+) for overcurrent protection

3

HA16666P/FP

Block Diagram

E/I

ST

C

R

T1

R

T2

OSC Out

GND

N.C

+

1

2

3

T

4

5

6

7

89

PWM

+

comparator

–

R

Triangular waveform

oscillator

S S/R

Flip-flop

Output driver

current

detector

Comparator

Reference

voltage

Undervoltage

lockout

protection

Over-

1.3 V 5 V

+

16

–

15

–

14

+

13

12

11

10

N.INV

INV

CS

Vref

V

IN

RM

OUT

N.C

+

–

4

HA16666P/FP

Absolute Maximum Ratings (Ta = 25°C)

Rating

Item Symbol HA16666P HA16666FP Unit

Power supply voltage V Output current DC I

(Push-pull)

Peak I Error input V OSC input voltage V CS input voltage V RM input voltage V RT2 input current I RT1 input current I Power dissipation P

IN

O(DC)

O(peak)

EI

OSC

CS

RM

R2

R1

T

Operation temperature Topr –20 to +85 –20 to +85 °C Storage temperature Tstg –55 to +125 –55 to +125 °C

Notes: 1. Value at 300 ns of switiching time

2. Value at Ta ≤ 45°C. If Ta > 45°C, derated by 8.3 mW/°C

3. Value under the condition of 40 mm × 40 mm × 0.8 t ceramics board epoxy board

+40 +40 V 100 100 mA 500*1 500*

1

mA Vref Vref V VIN – 3V

BE

VIN – 3V

BE

V Vref Vref V V

IN

V

IN

V 11mA 11mA 680*

2

680*

3

mW

Electrical Characteristics (VIN = 15 V, Ta = 25°C, fosc = 300 kHz)

Item Symbol Min Typ Max Unit Test Condition

Voltage Output voltage Vref 4.75 5.00 5.25 V no load reference

Triangular Maximum frequency f waveform oscillator

Line regulation Line — 50 100 mV V

= 11 to 40 V

IN

Load regulation Load — 9 20 mV IO = 0 to 10 mA Temperature stability V Short circuit current I

Minimum frequency f Frequency accuracy f Voltage stability f Temperature coefficient

of frequency

RTC

OS

max

min

der

T

f

i

— +60 — ppm/°C no load 10 35 — mA Vref = 0 V 600 — — kHz CT = 150 pF — — 1 kHz CT = 0.15 µF –10 0 +10 % — 1 — % 11 V≤ VIN ≤ 40 V — 2 — % –20°C ≤ Ta

≤ +85°C

5

HA16666P/FP

Electrical Characteristics (VIN = 15 V, Ta = 25°C, fosc = 300 kHz) (cont)

Item Symbol Min Typ Max Unit Test Condition

PWM Maximum duty cycle Du 75 — — % comparator

Overcurrent Input bias current I detector

Comparator Input bias current I

Remote controller

Undervoltage lockout

protector

Output driver Output low-level V

Total current Standby current I

Note: 1. Measurement conditions of ICS, ICL, tr, tf are defined as following diagram.

Input bias current I Low-level threshold

B

V

OSCL

–2 — — µA Pin 1 — 1.5 — V Pin 1

voltage High-level threshold

V

OSCH

— 2.5 — V Pin 1

voltage Dead-band duty

∆ Du — ±1 ±3%

accuracy Dead-band duty input

D

T

— 1 — % 11 V≤ VIN ≤ 40 V

voltage stability Temperature coefficient

D

uT

— 1 — % –20°C ≤ Ta

of dead-band duty

–2 — — µA Pin 15, 16 0 to

V

IN

— — V Pin 15, 16

– 3

—513µAVCS = 5 V

Common-mode input voltage range

B1

V

CM1

B2

Input threshold voltage Vth 1.2 1.3 1.4 V Input voltage range V Input current to remote

CS

I

RM

0 — Vref V — — 1.5 mA VRM = 5 V

control pin Input high-voltage V Input low-voltage V

High-level threshold

INH

INL

V

THH

1——V

— — 0.4 V

91011V

voltage Low-level threshold

V

THL

789V

voltage Hysteresis width Hys 1.5 2.0 2.8 V

— 0.7 1.4 V IO

V

IN

——V I

Output high-level V

L

H

– 2.2 Output rise time t Output fall time t

Operation current I

r

f

CS

CL

— 80 150 ns Note 1

— 40 100 ns Note 1

— 0.15 0.3 mA Note 1

— 8 12 mA Note 1

≤ +85°C

(SINK)

= 10 mA

O

(SOURCE)

= 10 mA

6

Waveform Timing

A

9.1 k

330 pF

h

of 2SD667 is defined as 60 min and 200 max.

FE

Ω

Vref V

EI OSC O/P

R

T2

C

T

R

GND

T1

9.1

Ω

k

V

THH

IN

2SD667

Out

15

2SB647

Ω

2,200 pF

HA16666P/FP

V

THL

V

IN

Remote control input

–

INV

+

-N.INV Overcurrent detection signal

E/I

Triangular waveform

Output

Overcurrent detection threshold

Dead-band area

7

HA16666P/FP

Characteristic Curves

5.10

Vref Output Voltage vs. Temperature Reference Voltage vs. Input Voltage

5.00

4.90

Reference Output Voltage Vref (V)

4.80 –30 0 50 100

Ambient Temperature T a (°C)

Soft Start Time vs. Soft Start Capacitance

1.0 Ta = 25°C

0.8

0.6

0.4

Soft Start Time (sec)

0.2

Vref

HA16666

ST

51 k

Cs

6.0

Ta = 25

°C

5.0

4.0

3.0

2.0

1.0

Reference Output Voltage Vref (V)

010203040

Input Voltage V (V)

Error Input Voltage/Set Voltage in PWM Comparator

Pulse Duty Cycle vs.

100

90 80

IN

V = 15 V

IN

≅

f 300 kHz Ta = 25

°C

70 60 50 40 30

Pulse Duty Cycle (%)

20 10

Soft Start Capacitor Capacitance Cs (µF)

100806040200

0.2

0 0.3 0.4 0.5 0.6

Error Input Voltage V

/ ref Voltage

E.I

∆f/f vs. Temperature Dead Band Duty vs. Temperature

+10

C = 330 pF

T

R = R

T2

T1

= 9.1 kΩ

≅

0

f 300 kHz

70

60

C = 330 pF

T

R = R

T2

T1

= 9.1 kΩ

≅

f 300 kHz

f/f (%)

∆

–10

–20020406080

Ambient Temperature T a (°C)

50

Dead-band duty (%)

40

–20 0 20 40 60 80

Ambient Temperature T a (°C)

8

VIN Bias Point

10

Back-up supply voltage

HA16666P/FP

C = 330 pF

T

R = R = 9.1 k

T1

V

B

R

B

T2

Ω

15 Ω

+

1 F

2200 pF

5

IN

I (mA)

Quick

shutdown

area

Soft start area

I

IN

12

HA16666

7

D667

10

B647

Under voltage lockout

1/R

B

0102083040

V

(V)

IN

9

HA16666P/FP

Formula for the oscillation frequency Frequency vs. R

800 k

HA16666

Vref

C

T

C

T

T1

R

Out

T2

R

T1

R

OSC

R

T2

100 k

HA16666 summary formula of the oscillation ferquency

log (f) ≈ a × log (RT1) + b

)

(= R

T2

The following table show empirical values of a and b for different values of C

C

T

180pF 330pF

1000pF

0.01µF

0.15µF

a

−0.50

−0.61

−0.75

−0.86

.

T

b

7.58

7.86

8.09

7.57

6.45

10 k

Frequency f (Hz)

, RT2 Dependence

T1

C

T

120 pF 180 pF

430 pF

1000 pF

3300 pF

0.01 F

µ

10

1 k

51020304050

R = R (k )

T1 T2

Ω

0.033 Fµ

0.15 Fµ

System Connection Example

Over current protection; Resistance sensing method

2

R

D

10/1 W

2

HA16666P/FP

Output

PHOTO

COUPLER

10

11

R

1 k

R

1 k

9

R

+

7

8

C

R

1 k

6

SHUNT

REGULATOR

K552R330

D667

HA17431P

13

14

R

12

R

B647

C

0.2

1 k

8

C

+

4

3

D

3

C

10

+

Ω

C: F

Unit R:

1,000 p

IN

R

220 k

1

C

+

RFI filter

AC

680

Input

C

2

0.01

876543

N.CGND

RM OUT N.C

IN

CS Vref V

—

15 14 13 12 11 10 9

INV

+

16

N.INV

O/P

OSC

T2

R

T1

R

HA16666P/FP

T

C

2

STE/I

1

6

R

5

R

5

C

3

R

0.047

9.1 k

330 p

50 k

4

C

4

R

10 k

11

HA16666P/FP

Over current protection; Current transformer method

Output

PHOTO

COUPLER

10

11

R

1 k

R

1 k

9

R

+

7

8

C

R

1 k

6

SHUNT

REGULATOR

C

+

HA17431P

Ω

C: F

Unit R:

C.T

2

R

2

D

3

D

10/1 W

IN

R

220 k

1

C

680 µ

+

4

D

K552

3

C

10 µ

+

2

C

0.01 µ

R

C

14

R

470

13

3.3 k

8

1,000 p

R

D667

9

C

470 p

6

D

12

11

R

B647

876543

N.CGND

RM OUT N.C

IN

CS Vref V

–

INV

+

16 15 14 13 12 11 10 9

N.INV

O/P

OSC

T2

R

T1

R

HA16666P/FP

T

C

2

STE/I

1

6

R

9.1 k

5

R

9.1 k

5

C

330 p

3

4

R

50 k

R

10 k

4

C

0.047 µ

12

RFI filter

AC

Input

Over current protection; Current transformer method

Output

PHOTO

COUPLER

10

11

R

1 k

R

1 k

9

R

+

7

8

C

R

1 k

+

6

C

SHUNT

REGULATOR

HA17431P

HA16666P/FP

Ω

C: F

Unit R:

C.T

2

R

D

3

D

10/1 W

2

IN

R

220 k

1

C

680 µ

+

4

D

K552

3

C

10 µ

+

2

C

0.01 µ

R

C

14

R

470

13

3.3 k

8

1,000 p

R

D667

9

C

470 p

6

D

12

11

R

B647

87654321

N.CGND

RM OUT N.C

IN

CS Vref V

–

INV

+

16 15 14 13 12 11 10 9

N.INV

O/P

OSC

T2

R

T1

R

HA16666P/FP

T

C

STE/I

6

R

9.1 k

5

R

9.1 k

5

C

330 p

3

4

R

50 k

R

10 k

4

C

0.047 µ

RFI filter

AC

Input

13

HA16666P/FP

Package Dimensions

19.20

20.00 Max

16 9

1.3

1.11 Max

2.54 ± 0.25

81

0.48 ± 0.10

6.30

7.40 Max

5.06 Max

2.54 Min

0.51 Min

0° – 15°

Hitachi Code JEDEC EIAJ Mass

(reference value)

0.25

7.62

+ 0.13 – 0.05

Unit: mm

DP-16 Conforms Conforms

1.07 g

10.06

10.5 Max

16

1

0.80 Max

1.27

*0.42 ± 0.08

± 0.06

0.40

*Dimension including the plating thickness

Base material dimension

9

8

0.12

5.5

0.10 ± 0.10

0.15 M

2.20 Max

7.80

0.20 ± 0.04

*0.22 ± 0.05

0.70 ± 0.20

Hitachi Code JEDEC EIAJ

(reference value)

Mass

+ 0.20 – 0.30

1.15

0

° – 8°

FP-16DA — Conforms

0.24 g

Unit: mm

14

HA16666P/FP

Cautions

1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual property rights, in connection with use of the information contained in this document.

2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use.

3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi’s sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support.

4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product.

5. This product is not designed to be radiation resistant.

6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi.

7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor products.

Hitachi, Ltd.

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15