International Rectifier IRS2168DSTRPBF, IRS2168DPBF Datasheet

Data Sheet No. PD60310

IRS2168D(S)PbF

ADVANCED PFC + BALLAST CONTROL IC

Features

 PFC, ballast control and 600 V half-bridge driver in one IC  Critical-conduction mode boost-type PFC  Programmable PFC over-current protection  Programmable half-bridge over-current protection  Programmable preheat frequency  Programmable preheat time  Programmable ignition ramp  Programmable run frequency  Closed-loop ignition current regulation  RoHs compliant

Description

The IRS2168D is a fully integrated, fully protected 600 V ballast control IC designed to drive all types of fluorescent lamps. The IRS2168D is based on the popular IR2166 control IC with additional improvements to increase ballast performance. The PFC circuitry operates in critical conduction mode and provides high PF, low THD and DC bus regulation. The IRS2168D features include programmable preheat and run frequencies, programmable preheat time, programmable PFC over-current protection, closed-loop half-bridge ignition current regulation, and programmable end-of-life protection. Comprehensive protection features such as protection from failure of a lamp to strike, filament failures, end-of-life protection, DC bus undervoltage reset as well as an automatic restart function, have been included in the design.

Application Diagram (Typical Only)

D

+ Rectified AC Line

BUS

R

 Fixed internal 1.6 µs HO and LO deadtime  Voltage-controlled oscillator (VCO)  End-of-life window comparator pin  Internal 65-event current sense up/down fault counter  DC bus undervoltage reset  Lamp removal/auto-restart shutdown pin  Internal bootstrap MOSFET  Internal 15.6 V Zener clamp diode on V  Micropower startup (250 µA)  Latch immunity and ESD protection

System Features

 One-chip ballast control solution  Wide range PFC for universal input and multi-lamp ballasts  Ultra low THD  Closed-loop ignition regulation for reliable lamp ignition  End-of-Life window comparator with internal OTA  Lamp removal/auto-restart function  Fault counter for robust noise immunity  Brown-out protection and reset  Internal bootstrap MOSFET

Packages

16-Lead PDIP 16-Lead SOIC IRS2168DPbF IRS2168DSPbF

VBUS1

R

SUPPLY

cc

C

R

+

C

BUS

M3

R

OC

C

R

VBUS

VCO

R

CPH

VBUS

1

C

PH

CPH

2

VCO

3

R

RPH

FMIN

C

COMP

4

COMP

5

R

ZX

1

6

7

R

GPFC

PFC

7

R

OC

2

8

C

OC

16

15

14

13

12

11

IRS2168D

10

C

HO

VS

VB

VCC

COM

LO

CS

SD/EOL

9

SD1

R

GHS

M1

C

BOOT

D

+

C

VCC2

VCC1

R

GLS

R

3

D

1

C

SD2

C

CS

M2

R

5

CS

D2D

R

L

C

BLOCK

RES

C

SNUB

CP1

4

D

R

6

C

R

7

CP2

R

8

3

C

R

EOL

9

RES

- Rectified AC Line

* Please note that this datasheet contains advanced information that could change before the product is released to production.

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IRS2168D(S)PbF

p

Absolute Maximum Ratings

Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to COM, all currents are defned positive into any lead. The thermal resistance and power dissipation ratings are measured under board mounted and still air conditions.

Symbol Definition Min. Max. Units

V

B

VS

V

HO

V

LO

V

PFC

I

O,

MAX

ICC V

V

BUS

V

CPH

V

COMP

V

ZX

V

OC

V

SD/EOL

V

CS

V

VCO

I

CPH

I

VCO

I

FMIN

I

COMP

IZX IOC

I

SD/EOL

ICS

dV/dt Allowable VS pin offset voltage slew rate -50 50 V/ns

P

D

R

θJA

TJ TS TL

Note 1: This IC contains a Zener clamp structure between the chip V voltage of 15.6 V. This supply pin should not be driven by a DC, low impedance power source greater than the V specified in the Electrical Characteristics section.

pin high-side floating supply voltage -0.3 625

V

B

pin high-side floating supply offset voltage VB – 25 VB + 0.3

V

S

HO pin high-side floating output voltage V LO pin low-side output voltage PFC gate driver output voltage

Maximum allowable output current (HO, LO, PFC) due to external

ower transistor miller effect

current (see Note 1) -25 25

CC

VBUS pin voltage CPH pin voltage COMP pin voltage ZX pin voltage

- 0.3 VB + 0.3

S

-0.3 V

+ 0.3

CC

-500 500

-0.3 V

+ 0.3 V

CC

OC pin voltage SD/EOL pin voltage CS pin voltage VCO pin voltage -0.3 6 V

CPH pin current

VCO pin current FMIN pin current COMP pin current ZX pin current

-5 5 mA

OC pin current SD/EOL pin current CS pin current

Package power dissipation @ TA ≤ +25 ºC (16-Pin DIP) PD = (T

Thermal resistance, junction to ambient

JMAX

TA)/R

-

θJA

(16-Pin SOIC) --- 1.4 (16-Pin DIP) --- 70 (16-Pin SOIC) --- 86

--- 1.8

Junction temperature -55 150 Storage temperature -55 150 Lead temperature (soldering, 10 seconds) --- 300

and COM which has a nominal breakdown

CC

V

mA

W

ºC/W

ºC

CLAMP

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IRS2168D(S)PbF

Recommended Operating Conditions

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

Symbol Definition Min. Max. Units

VB-VS

VS

High-side floating supply voltage Steady state high-side floating supply offset voltage -1 600

V

BSUV+

CLAMP

V

VCC

ICC V

I

SD/EOL

I

CS

I

OC

I

ZX

V

VCO

R

FMIN

TJ

Supply voltage

supply current

CC

SD/EOL pin current CS pin current OC pin current ZX pin current VCO pin voltage 0 5 V FMIN pin programming resistor 10 300 Junction temperature -25 125 ºC

V

CCUV+

Note 2 10

-1 1

V

CLAMP

Note 2: Enough current should be supplied into the VCC pin to keep the internal 15.6 V Zener clamp diode on this pin regulated at its voltage, V

CLAMP

.

Electrical Characteristics

V

= V

CC SD/EOL

= V

BS

V

Symbol Definition Min Typ Max Units Test Conditions Supply Characteristics

V

CCUV

V

CCUV

V

UVHYS

=14 V +/- 0.25 V, C

= V

BIAS

= V

CS

COMP

supply undervoltage positive going

V

CC

+

threshold

supply undervoltage negative going

V

CC

-

threshold

= V

OC

= C

LO

HO

= VZX = 0 V, TA=25 oC unless otherwise specified.

BUS

PFC

VCC supply undervoltage lockout hysteresis

= 1000 pF, R

11.5 12.5 13.5

9.5 10.5 11.5

1.5 2.0 3.0

= 42.2 kΩ, RPH = N/C, V

FMIN

CPH

= V

V

= 0 V,

VCO

V

rising from 0 V

CC

V

falling from 14 V

CC

mA

kΩ

I

UVLO mode VCC quiescent current

QCCUV

I

VCC quiescent current in fault mode --- 0.4 --- MODE=FAULT

QCCFLT

--- 220 320 µA

mA

I

Run mode VCC supply current

CCRUN

--- 5.5 7.2

V

= 8 V

CC

MODE = RUN

=4 V

V

BUS

CSD/EOL=1 nF

PFC off time = 5 µs

V

CLAMP

Zener clamp voltage

V

CC

14.6 15.6 16.6 V

Floating Supply Characteristics

IBS VBS supply current

supply undervoltage positive going

V

BSUV+

BSUV-

I

LKVS

BS

threshold

supply undervoltage negative going

V

BS

threshold

V

offset supply leakage current

S

--- 0.9 1.3 mA MODE=PREHEAT

8.0 9.0 10.0 V

7.0 8.0 9.0

--- --- 50 µA

I

= 10 mA

CC

V

rising from 0 V

BS

falling from 14 V

V

BS

= VS = 600 V

V

B

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IRS2168D(S)PbF

Electrical Characteristics (cont’d)

V

= V

CC SD/EOL

= V

BS

V

Symbol Definition Min Typ Max Units Test Conditions PFC Error Amplifier Characteristics

I

COMP, SOURCE

I

COMP, SINK

V

COMPOH

=14 V +/- 0.25 V, C

= V

BIAS

= V

COMP

CS

COMP pin OTA error amplifier output current Sourcing

COMP pin OTA error amplifier output current Sinking

OTA error amplifier output voltage swing (high state)

= V

OC

= C

LO

HO

= VZX = 0 V, TA=25

BUS

= 1000 pF, R

PFC

o

C unless otherwise specified.

= 42.2 kΩ, RPH = N/C, V

FMIN

20 30 40

-40 -30 -20

12.0 12.5 13.0

= 0 V,

= V

CPH

VCO

MODE = RUN

= 3.5 V

V

VBUS

=4.0 V

V

µA

COMP

MODE = RUN

V

VBUS

V

COMP

V

BUS

I

COMP=ICOMP

= 4.5 V

=4.0 V

=3.5 V

SOURCE-5

µA

V

COMPOL

V

COMPFLT

PFC Control Characteristics

V

VBUSREG

V

VBUSOV

V

VBUSOV-

VZX

V

ZXHYS

V

ZXclamp

t

BLANK

OTA error amplifier output voltage swing (low state)

OTA error amplifier output voltage in fault mode

internal reference voltage 3.9 4.0 4.1

V

BUS

overvoltage comparator threshold 4.1 4.3 4.5

V

BUS

overvoltage fault reset threshold 4.0 4.15 4.3

V

BUS

ZX pin threshold voltage 1.8 2.0 2.2

ZX pin comparator hysterisis 100 300 500 mV

ZX pin clamp voltage (high state) 5.5 6.5 7.5 V

OC pin current-sensing blank time --- 300 --- ns

tWD

PFC watch-dog pulse interval 150 400 500 µs

PFC Protection Circuitry Characteristics

V

pin undervoltage reset threshold 2.7 3.0 3.3

V

VBUSUV-

V

OCTH+

BUS

OC pin over-current sense threshold 1.1 1.2 1.3

0.2 0.4 0.5

--- 0 ---

V

I

COMP=ICOMP

V

COMP

=5.0 V

BUS

SINK+5 µA

=4.0 V

BUS

= 4.0 V

V

IZX = 1 mA

=4.0 V

V

BUS

=4.0 V

V

COMP

ZX = 0, V

COMP

= 4.0 V

V

BUS=VCOMP

=4.0 V

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IRS2168D(S)PbF

Electrical Characteristics (cont’d)

V

= V

CC SD/EOL

= V

BS

V

Symbol Definition Min Typ Max Units Test Conditions

=14 V +/- 0.25 V, C

= V

BIAS

= V

COMP

CS

= V

= C

= 1000 pF, R

PFC

o

C unless otherwise specified.

LO

HO

= VZX = 0 V, TA=25

= V

BUS

OC

= 42.2 kΩ, RPH = N/C, V

FMIN

CPH

= V

VCO

= 0 V,

Ballast Control Oscillator Characteristics

f

OSC, RUN

f

OSC, PH

t

d

V

Half-bridge oscillator run frequency 42.5 44.5 46.5 MODE = RUN

Half-bridge oscillator preheat frequency 81 85 89

Oscillator duty cycle --- 50 --- %

D

LO output deadtime 1.1 1.6 2.1

d

, LO

HO output deadtime 1.1 1.6 2.1

, HO

pin voltage 1.9 2.0 2.1 V VCC = 14.0 V

F

FMIN

MIN

Ballast Control Preheat, Ignition and Run Mode Characteristics

V

CPHEOP+

V

CPHSOI-

V

VCOPH

V

VCOIGN

I

VCOIGN

V

CPHRUN+

V

VCORUN

CPH pin end of preheat rising threshold voltage

CPH pin start of ignition falling threshold voltage

VCO pin preheat mode voltage --- 0 --- MODE = PREHEAT

VCO pin ignition mode voltage ---

VCO pin ignition regulation discharge current

CPH pin run mode rising threshold voltage 8.8 9.3 9.8 MODE = IGNITION

VCO pin run mode voltage ---

8.8 9.3 9.8

4.6 4.9 5.2

(Open Drain)

--- 0.6 --- mA

(Open Drain)

---

kHz

RPH = 42.2 kΩ,

MODE = PREHEAT

µs

V

MODE = IGNITION,

< V

CSTH+

V

CS

MODE = IGNITION,

= 1 V

V

VCO

V

CS

> V

CSTH+

,

V

MODE = RUN

Ballast Control Protection Circuitry Characteristics

V

CSTH+

n

EVENTS

V

SDTH+

V

EOLBIAS

V

EOLTH+

V

EOLTH-

I

EOL, SOURCE

I

EOL, SINK

V

CPHFLT

V

VCOFLT

V

FMINFLT

CS pin over-current sense threshold 1.1 1.2 1.3 V CS pin fault counter number of events 30 65 100 ---

SD pin rising non-latched shutdown threshold voltage

SD pin falling reset threshold voltage 2.5 3.0 3.5

SDTH-

EOL pin internal bias voltage 1.9 2.0 2.1 EOL pin rising latched shutdown threshold

voltage EOL pin falling latched shutdown threshold

voltage EOL pin OTA output sourcing current

EOL pin OTA output sinking current

CPH pin fault mode voltage VCO pin fault mode voltage FMIN pin fault mode voltage

MODE = PREHEAT or

RUN

4.7 5.2 5.7

V

2.85 3.0 3.15 MODE = RUN

0.9 1.0 1.1

---

10

-10

---

µA

MODE = RUN

MODE = PREHEAT

= 1.5 V

V

EOL

MODE = PREHEAT

= 2.5 V

V

EOL

--- 0 --- V MODE = FAULT

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IRS2168D(S)PbF

Electrical Characteristics (cont’d)

V

= V

CC SD/EOL

BS

= V

V

Gate Driver Output Characteristics (HO, LO and PFC pins)

VOL

VOH

t

Turn-on rise time --- 120 220

r

t

Turn-off fall time --- 50 100

f

I

0+

I

0-

Bootstrap FET Characteristics

V

VB when the bootstrap FET is on 13.0 13.4 --- V

B/ON

I

VB source current when FET is on 40 55 --- CBS=0.1 µF

B/CAP

I

VB source current when FET is on 9 12 ---

B/10V

=14 V +/- 0.25 V, C

= V

BIAS

= V

COMP

CS

Low-level output voltage --- COM ---

High-level output voltage --- V

Source current --- 180 ---

Sink current --- 260 ---

= V

OC

= C

LO

HO

= VZX = 0 V, TA=25

BUS

= 1000 pF, R

PFC

o

C unless otherwise specified.

= 42.2 kΩ, RPH = N/C, V

FMIN

CC

---

V

ns

mA

CPH

= V

VCO

= 0 V,

VB=10 V

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Schematic Block Diagram

IRS2168D(S)PbF

VCC

13

COM

12

15.6V

I

FMIN

Oscillator

3

VCO

2V

CPH

OC

VBUS

ZX

I

FMIN

4

=

2

8

1

5

6

2.0V

R

RFMIN

1.2V 200ns

Blank Time

3V

6.5V

VCC

R

65 Event

PH

IGN

Mode Logic

RUN

R

Gain

4.0V

2V

OTA1

S

Q

RQ

OVP

4.3V

VCC

VBUS

Under-Voltage

Reset

Counter

R

VCC VCC

UVLO

Fault

OUT

IN

FMIN

COMP

Please Note: All values shown in block diagram are typical values only.

Fault Logic

Driver

and

Deadtime

Logic

R1 R2 Q

Ignition

Regulation

S

Q

RQ

QS

VCC

Bootstrap

Control

HighSide

Driver

Low-

Driver

3V

2V

1V

5V

3V

400us

Watchdog

Timer

14

16

15

Side

11

10

1.2V

+/-10uA

9

1M

Ballast Control

VCC

PFC Control

7

VB

HO

VS

LO

CS

SD/EOL

PFC

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