Fairchild FOD3182 service manual

FOD3182 — 3A Output Current, High Speed MOSFET Gate Driver Optocoupler

February 2011

FOD3182 3A Output Current, High Speed MOSFET Gate Driver Optocoupler

Features

High noise immunity characterized by 50kV/µs (Typ.)

■

common mode rejection @ V

■

Guaranteed operating temperature range of

-40°C to +100°C 3A peak output current

■

Fast switching speed

– 210ns max. propagation delay – 65ns max pulse width distortion

Fast output rise/fall time

■

– Offers lower dynamic power dissipation

■

250kHz maximum switching speed Wide V

■

Use of P-Channel MOSFETs at output stage

operating range: 10V to 30V

DD

enables output voltage swing close to the supply rail (rail-to-rail output)

5000Vrms, 1 minute isolation

■

Under voltage lockout protection (UVLO) with hysteresis – optimized for driving MOSFETs

Minimum creepage distance of 8.0mm

■

Minimum clearance distance of 10mm to 16mm (option TV or TSV)

Minimum insulation thickness of 0.5mm

■

UL and VDE*

■

1,414 peak working insulation voltage (V

= 2,000V

CM

IORM

)

Applications

■

Plasma Display Panel High performance DC/DC convertor

■

High performance switch mode power supply

■

High performance uninterruptible power supply Isolated Power MOSFET gate drive

■

Description

The FOD3182 is a 3A Output Current, High Speed MOSFET Gate Drive Optocoupler. It consists of a aluminium gallium arsenide (AlGaAs) light emitting diode optically coupled to a CMOS detector with PMOS and NMOS output power transistors integrated circuit power stage. It is ideally suited for high frequency driving of power MOSFETS used in Plasma Display Panels (PDPs), motor control inverter applications and high performance DC/DC converters.

The device is packaged in an 8-pin dual in-line housing compatible with 260°C reflow processes for lead free solder compliance.

*Requires ‘V’ ordering option

Functional Block Diagram Package Outlines

1

NC

2

3

4

ANODE

CATHODE

Note:

A 0.1µF bypass capacitor must be connected between pins 5 and 8.

8

V

DD

8

7

V

O2

VO1

6

5

V

SS

1

8

1

8

1

Truth Table

V

–

V

LED

DD

“Positive Going”

SS

(Turn-on)

V

–

V

DD

“Negative Going”

SS

(Turn-off) V

Off 0V to 30V 0V to 30V Low

On 0V to 7.4V 0V to 7V Low

On 7.4V to 9V 7V to 8.5V Transition

On 9V to 30V 8.5V to 30V High

Pin Definitions

Pin # Name Description

1NCNot Connected

2 Anode LED Anode

3 Cathode LED Cathode

4NCNot Connected

5V

6V

7V

8V

SS

O2

O1

DD

Negative Supply Voltage

Output Voltage 2 (internally connected to V

Output Voltage 1

Positive Supply Voltage

O1

)

FOD3182 — 3A Output Current, High Speed MOSFET Gate Driver Optocoupler

O

Safety and Insulation Ratings

As per DIN EN/IEC 60747-5-2. This optocoupler is suitable for “safe electrical insulation” only within the safety limit data. Compliance with the safety ratings shall be ensured by means of protective circuits.

Symbol Parameter Min. Typ. Max. Unit

Climatic Classiﬁcation 40/100/21

Pollution Degree (DIN VDE 0110/1.89) 2

CTI Comparative Tracking Index 175

V

PR

V

IORM

V

IOTM

External Creepage 8 mm

External Clearance 7.4 mm

Insulation Thickness 0.5 mm

T

Case

I

S,INPUT

P

S,OUTPUT

R

IO

Installation Classiﬁcations per DIN VDE 0110/1.89 Table 1

For Rated Mains Voltage < 150Vrms I–IV

For Rated Mains Voltage < 300Vrms I–IV

For Rated Mains Voltage < 450Vrms I–III

For Rated Mains Voltage < 600Vrms I–III

For Rated Mains Voltage < 1000Vrms (Option T, TS) I–III

Input to Output Test Voltage, Method b, V

x 1.875 = V

IORM

, 100% Production Test with

PR

2651

tm = 1 sec., Partial Discharge < 5pC

Input to Output Test Voltage, Method a, V

IORM

x 1.5 = V

, Type and Sample Test with

PR

2121

tm = 60 sec.,Partial Discharge < 5 pC

Max Working Insulation Voltage 1,414 V

Highest Allowable Over Voltage 6000 V

External Clearance (for Option T or TS - 0.4” Lead Spacing) 10.16 mm

Safety Limit Values – Maximum Values Allowed in the Event of a Failure

Case Temperature 150 °C

Input Current 25 mA

Output Power (Duty Factor ≤ 2.7%) 250 mW

Insulation Resistance at T

, V

= 500V 10

S

IO

9

Ω

FOD3182 — 3A Output Current, High Speed MOSFET Gate Driver Optocoupler

peak

FOD3182 — 3A Output Current, High Speed MOSFET Gate Driver Optocoupler

Absolute Maximum Ratings

(T

= 25°C unless otherwise speciﬁed)

A

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.

Symbol

T

STG

T

OPR

T

J

T

SOL

Parameter

Value Units

Storage Temperature -40 to +125 °C

Operating Temperature -40 to +100 °C

Junction Temperature -40 to +125 °C

Lead Solder Temperature – Wave solder

260 for 10 sec. °C

(Refer to Reﬂow Temperature Proﬁle, pg. 22)

I

F(AVG)

I

F(tr, tf)

V

I

OH(PEAK)

I

OL(PEAK)

V

– V

DD

V

O(PEAK)

P

O

P

D

Average Input Current

LED Current Minimum Rate of Rise/Fall 250 ns

R

Reverse Input Voltage 5 V

“High” Peak Output Current

“Low” Peak Output Current

SS

Supply Voltage -0.5 to 35 V

Output Voltage 0 to V

Output Power Dissipation

Total Power Dissipation

(1)

25 mA

(2)

3A

(2)

3A

(4)

250 mW

(5)

295 mW

DD

V

Recommended Operating Conditions

The Recommended Operating Conditions table deﬁnes the conditions for actual device operation. Recommended operating conditions are speciﬁed to ensure optimal performance to the datasheet speciﬁcations. Fairchild does not

recommend exceeding them or designing to absolute maximum ratings.

Symbol

V

– V

DD

I

F(ON)

V

F(OFF)

SS

Parameter

Power Supply 10 to 30 V

Input Current (ON) 10 to 16 mA

Input Voltage (OFF) -3.0 to 0.8 V

Value Units

Electrical-Optical Characteristics (DC)

Apply over all recommended conditions, typical value is measured at V unless otherwise speciﬁed.

Symbol Parameter Test Conditions Min. Typ. Max. Unit

I

V

I

DDH

I

DDL

I

FLH

V

∆V

V

UVLO+

V

UVLO–

UVLO

BV

C

OH

OL

OH

OL

FHL

F/TA

IN

High Level Output Current V

Low Level Output Current V

High Level Output Voltage

Low Level Output Voltage

(5)(6)

I

= (V

DD

– V

OH

V

OH

= (V

OL

= (V

V

OL

I

= -100mA V

O

= 100mA V

O

High Level Supply Current Output Open,

I

= 10 to 16mA

F

Low Level Supply Current Output Open,

V

= -3.0 to 0.8V

F

Threshold Input Current Low to

I

= 0mA, VO > 5V 3.0 7.5 mA

O

High

Threshold Input Voltage High to Low IO = 0mA, VO < 5V 0.8 V

Input Forward Voltage IF = 10mA 1.1 1.43 1.8 V

F

Temperature Coefﬁcient of Forward

IF = 10mA -1.5 mV/°C

Voltage

UVLO Threshold VO > 5V, IF = 10mA 7 8.3 9 V

VO < 5V, IF = 10mA 6.5 7.7 8.5 V

UVLO Hysteresis 0.6 V

HYST

Input Reverse Breakdown Voltage IR = 10µA 5 V

R

Input Capacitance f = 1MHz, VF = 0V 25 pF

= 30V, V

DD

– 1V) 0.5 0.9 A

SS

– 6V) 2.5

SS

+ 1V) 0.5 1 A

SS

+ 6V) 2.5

SS

= 0V, T

SS

– 0.5 V

DD

= 25°C,

A

+ 0.5 V

SS

2.6 4.0 mA

2.5 4.0 mA

FOD3182 — 3A Output Current, High Speed MOSFET Gate Driver Optocoupler

Switching Characteristics

Apply over all recommended conditions, typical value is measured at VDD = 30V, VSS = 0V, TA = 25°C, unless otherwise speciﬁed.

FOD3182 — 3A Output Current, High Speed MOSFET Gate Driver Optocoupler

Symbol

t

PLH

t

PHL

P

WD

P

(t

– t

PHL

t

UVLO ON

t

UVLO OFF

| CM

Parameter

Propagation Delay Time to High Output Level

Propagation Delay Time to Low Output Level

(8)

DD

t

r

t

f

Pulse Width Distortion

Propagation Delay Difference Between Any

)

Two Pa rts

PLH

(9)

Rise Time CL = 10nF,

Fall Time 24 ns

UVLO Turn On Delay 2.0 µs

UVLO Turn Off Delay 0.3 µs

| Output High Level Common Mode Transient

H

Immunity

| Output Low Level Common Mode Transient

L

Immunity

(10) (11)

(10) (12)

Test Conditions Min. Typ. Max. Unit

(7)

IF = 10mA, R

(7)

= 10Ω,

g

50 145 210 ns

f = 250kHz, Duty Cycle = 50%, C

= 10nF

g

R

= 10Ω

g

TA = +25°C, I

= 7mA to 16mA,

f

V

= 2kV,

CM

V

= 30V

DD

TA = +25°C, V

= 0V,

f

V

= 2kV,

CM

V

= 30V

DD

50 120 210 ns

35 65 ns

-90 90 ns

38 ns

35 50 kV/µs

Isolation Characteristics

Symbol

V

R

C

*Typical values at TA = 25°C

Parameter

Withstand Isolation Voltage

ISO

Resistance (input to output)

I-O

Capacitance (input to output) Freq. = 1MHz 1 pF

I-O

(13) (14)

(14)

Test Conditions Min. Typ.* Max. Unit

TA = 25°C, R.H. < 50%, t = 1min., I

≤ 10µA

I-O

V

= 500V 10

I-O

5000 V

11

rms

Ω

Notes:

1. Derate linearly above +79°C free air temperature at a rate of 0.37mA/°C.

2. Maximum pulse width = 10µs, maximum duty cycle = 11%. 3 Derate linearly above +79°C, free air temperature at the rate of 5.73mW/°C.

4. No derating required across operating temperature range.

5. In this test, V approaches zero amps.

as I

OH

is measured with a dc load current of 100mA. When driving capacitive load VOH will approach VDD

OH

6. Maximum pulse width = 1ms, maximum duty cycle = 20%.

7. t

8. PWD is deﬁned as | t

8. The difference between t

propagation delay is measured from the 50% level on the falling edge of the input pulse to the 50% level of the

PHL

falling edge of the V

signal. t

O

pulse to the 50% level of the rising edge of the V

– t

PHL

propagation delay is measured from the 50% level on the rising edge of the input

PLH

signal.

O

| for any given device.

PLH

and t

between any two FOD3182 parts under same operating conditions, with

PLH

equal loads.

10. Pin 1 and 4 need to be connected to LED common.

11. Common mode transient immunity in the high state is the maximum tolerable dV

to assure that the output will remain in the high state (i.e. VO > 15V).

V

CM

12. Common mode transient immunity in a low state is the maximum tolerable dV

, to assure that the output will remain in a low state (i.e. VO < 1.0V).

V

CM

/dt of the common mode pulse

CM

/dt of the common mode pulse,

CM

13. In accordance with UL 1577, each optocoupler is proof tested by applying an insulation test voltage > 6000Vrms,

60Hz for 1 second (leakage detection current limit I

< 10µA).

I-O

14. Device considered a two-terminal device: pins on input side shorted together and pins on output side shorted

together.

FOD3182 — 3A Output Current, High Speed MOSFET Gate Driver Optocoupler