Fairchild FOD2200 service manual

FOD2200 — Low Input Current Logic Gate Optocouplers

August 2010

FOD2200 Low Input Current Logic Gate Optocouplers

Features

■

1kV/µs minimum common mode rejection Compatible with LSTTL, TTL, and CMOS logic

■

Wide V

2.5Mbd guaranteed over temperature

■

Low input current (1.6mA) Three state output (no pullup resistor required)

■

Guaranteed performance from 0°C to 85°C

■

Hysteresis Safety and regulatory approved

■

– UL1577, 5000 V

range (4.5V to 20V)

for 1 min.

RMS

– IEC60747-5-2

■

>8.0mm clearance and creepage distance (option ‘T’ or ‘TS’)

■

1,414V Peak Working Insulation Voltage (V

Applications

■

Isolation of high speed logic systems Computer peripheral interfaces

■

Microprocessor system interfaces Ground loop elimination

■

Pulse transformer replacement Isolated bus driver

■

High speed line receiver

IORM

Description

The FOD2200 is an optically coupled logic gate that combine an AlGaAs LED and an integrated high gain photo detector. The detector has a three state output stage and has a detector threshold with hysteresis. The three state output eliminates the need for a pullup resistor and allows for direct drive of data busses. The hysteresis provides differential mode noise immunity and eliminates the potential for output signal chatter.

The Electrical and Switching Characteristics of the FOD2200 are guaranteed over the temperature range of 0°C to 85°C and a V wide V

range allow compatibility with TTL, LSTTL, and

CMOS logic and result in lower power consumption compared to other high speed opto-couplers. Logic

)

signals are transmitted with a maximum propagation delay of 300ns. The FOD2200 is useful for isolating high speed logic interfaces, buffering of input and output lines, and implementing isolated line receivers in high noise environments.

Truth Table

LED Enable Output

On H Z Off H Z On L H Off L L

range of 4.5V to 20V. Low I

(Positive Logic)

and

Functional Block Diagram and Schematic Package Outlines

SHIELD

ANODE

CATHODE

GND

–

SHIELD

GND

Safety and Insulation Ratings

As per 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 40/85/21 Pollution Degree (DIN VDE 0110/1.89) 2

CTI Comparative Tracking Index 175

IORM

IOTM

External Creepage 8 mm External Clearance 7.4 mm

Insulation Thickness 0.5 mm

Case

S,INPUT

S,OUTPUT

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

2651

tm = 1 sec., Partial Discharge < 5pC Input to Output Test Voltage, Method a,

IORM

x 1.5 = V

, Type and Sample Test with

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 10 mA Output Power (Duty Factor ≤ 2.7%) 150 mW Insulation Resistance at T

, V

= 500V 10

Ω

FOD2200 — Low Input Current Logic Gate Optocouplers

peak

FOD2200 — Low Input Current Logic Gate Optocouplers

Absolute Maximum Ratings

= 25°C unless otherwise speciﬁed)

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 Parameter Value Units

STG

OPR

SOL

EMITTER

F (PK)

V P

DETECTOR

V V P

Storage Temperature -40 to +125 °C Operating Temperature -40 to +85 °C Lead Solder Temperature (1.6mm below seating plane) 260 for 10 sec °C

Peak Transient Input Current ( ≤ 1µs PW, 300pps) 1.0 A Average Forward Input Current 10 mA Reverse Input Voltage 5.0 V

Output Power Dissipation (No derating required up to 85°C) 45 mW

Supply Voltage 0 to 20 V Average Output Current 25 mA Three State Enable Voltage -0.5 to 20 V

Output Voltage -0.5 to 20 V

Output Power Dissipation (No derating required up to 85°C) 150 mW

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 Parameter Min. Max. Units

F(ON)

F(OFF)

NFan Out (TTL Load) 4

*The initial switching threshold is 1.6mA or less. It is recommended that 2.2mA be used to permit at least a 20% CTR degradation guardband.

Forward Input Current 1.6* 5 mA Forward Input Current 0.1 mA Supply Voltage, Output 4.5 20 V Enable Voltage, LOW Level 0 0.8 V Enable Voltage, HIGH Level 2.0 20 V Operating Temperature 0 +85 °C

∆

FOD2200 — Low Input Current Logic Gate Optocouplers

Electrical Characteristics

= 2V to 20V, V

= 0V to 0.8V, I

= 0°C to +85°C, V

= 0 mA to 0.1mA unless otherwise speciﬁed.)

F(OFF)

= 4.5V to 20V, I

= 1.6mA to 5mA,

F(ON)

(1)

Individual Component Characteristics

Symbol Parameter Test Conditions Min. Typ.* Max. Unit

EMITTER

VF/ ∆ TA Input Diode Temperature

DETECTOR

CCH

CCL

I I

V V

Input Forward Voltage I

Input Reverse Breakdown

= 5mA 1.75 V

= 25°C 1.40 1.7

= 10µA 5.0 V

Voltage Input Capacitance Pins 2 & 3, V

= 5mA -1.4 mV/°C

= 0, f = 1MHz 60 pF

Coefﬁcient

High Level Supply Current

Low Level Supply Current I

Low Level Enable Current V

High Level Enable Current V

High Level Enable Voltage 2.0 V

Low Level Enable Voltage 0.8 V

= 5mA, I

= Don’t Care

= 0, I

= Don’t care

= 0.4V -0.1 -0.32 mA

= 2.7V 20 µA

= 5.5V 100

= 20V 0.005 250

= Open,

= 5.5V 3.5 4.5 mA

= 20V 4.0 6.0

= 5.5V 4.4 6.0 mA

= 20V 5.2 7.5

Switching Characteristics

= 0°C to +85°C, I

= 1.6mA to 5mA, I

F(ON)

= 0 to 0.1mA, V

F(OFF)

= 4.5V to 20V

unless otherwise speciﬁed.)

Symbol AC Characteristics Test Conditions Min. Typ.* Max. Unit

Propagation Delay Time

PLH

With Peaking Capacitor

to Output High Level

Propagation Delay Time

PHL

With Peaking Capacitor

to Output Low Level

(5)

(Fig. 1) 80 ns

(6)

(Fig. 1) 25 ns

(Fig. 2) 40 ns

PZH

Output Rise Time (10% to 90%) Output Fall Time (90% to 10%)

Enable Propagation Delay Time to Output High Level

PZL

Enable Propagation Delay Time

(Fig. 2) 50 ns

to Output Low Level

PHZ

Disable Propagation Delay Time from

(Fig. 2) 95 ns

Output High Level

Disable Propagation Delay Time from

PLZ

(Fig. 2) 80 ns

Output Low Level

| Common Mode Transient Immunity

|CM

(at Output High Level)

| Common Mode

|CM

Tr ansient Immunity (at Output Low Level)

*Typical values at T

= 25°C, V

= 5V, I

F(ON)

TA =25°C,

(Min.) = 2.0V,

= 5V

(7)

(Fig. 3)

TA =25°C, IF = 0mA

(Max.) = 0.8 V,

= 5V

(8)

(Fig. 3)

= 3mA unless otherwise specified.

(2)(4)

(Fig. 1) 120 300 ns

(3)(4)

(Fig. 1) 180 300 ns

= 1.6mA,

| = 50V

= 5mA,

| = 1,000V

| = 50V 1,000 V/µs

| = 1,000V 10,000

1,000 V/µs

10,000

Electrical Characteristics (Continued)

FOD2200 — Low Input Current Logic Gate Optocouplers

Transfer Characteristics (T

= 0V to 0.8V, I

= 0mA to 0.1mA unless otherwise speciﬁed.)

F(OFF)

= 0°C to +85°C, VCC = 4.5V to 20V, I

= 1.6mA to 5mA, VEH = 2V to 20V,

F(ON) (1)

Symbol DC Characteristics Test Conditions Min. Typ.* Max. Unit

OHH

V I

OZL

OZH

OSL

OSH

HYS

Output Leakage Current (V

> VCC)

OUT

Low Level Output Voltage VCC = 4.5 V, IF = 0mA, VE = 0.4 V,

= 4.5V, IF = 5mA VO = 5.5V 2.0 100 µA

= 20V 2.5 500

0.33 0.5 V

= 6.4mA

(2)

Input Threshold Current VCC = 4.5V, VO = 0.5V, VE = 0.4V,

= 6.4mA

Logic High Output Voltage IOH = -2.6mA 2.4 VCC – 1.8 V High Impedance State

VO = 0.4V, VEN = 2V, IF = 5mA -20 µA

Output Current High Impedance State

Output Current

Logic Low Short Circuit Output Current

Logic High Short Circuit Output Current

(10)

VO = 2.4 V, VEN = 2 V, IF = 5mA 20 µA V

= 5.5 V, VEN = 2 V, IF = 5mA 100

= 20 V, VEN = 2 V, IF = 5mA 500

VO = VCC = 5.5V, IF = 0mA 25 mA V

= VCC = 20V, IF = 0mA 40

VCC = 5.5V, IF = 5mA, VO = GND -10 mA V

= 20V, IF = 5mA, VO = GND -25

Input Current Hysteresis VCC = 4.5V 0.03 mA

1.6 mA

Isolation Characteristics (T

= 0°C to +85°C unless otherwise speciﬁed)

Symbol Characteristics Test Conditions Min. Typ.* Max. Unit

R C

*Typical values at T

Withstand Insulation Test Voltage RH < 50%, TA = 25°C, t = 1 min.

ISO

Resistance (Input to Output) V

I-O

Capacitance (Input to Output) V

I-O

= 25°C, VCC = 5V, I

= 500 VDC

I-O

= 0V, f = 1MHz

I-O

= 3mA unless otherwise stated.

F(ON)

(9)

Notes:

1. The V

supply to each optoisolator must be bypassed by a 0.1µF capacitor or larger. This can be either a ceramic

or solid tantalum capacitor with good high frequency characteristic and should be connected as close as possible to the package V

2. t

– Propagation delay is measured from the 50% level on the LOW to HIGH transition of the input current pulse

PLH

and GND pins of each device.

to the 1.3V level on the LOW to HIGH transition of the output voltage pulse.

3. t

– Propagation delay is measured from the 50% level on the HIGH to LOW transition of the input current pulse

PHL

to the 1.3V level on the HIGH to LOW transition of the output voltage pulse.

4. When the peaking capacitor is omitted, propagation delay times may increase by 100ns. – Rise time is measured from the 10% to the 90% levels on the LOW to HIGH transition of the output pulse.

5. t

– Fall time is measured from the 90% to the 10% levels on the HIGH to LOW transition of the output pulse.

6. t

7. CM

8. CM

– The maximum tolerable rate of fall of the common mode voltage to ensure the output will remain in the high

state (i.e., V

– The maximum tolerable rate of rise of the common mode voltage to ensure the output will remain in the low

state (i.e., V

OUT

> 2.0V).

< 0.8V).

9. Device considered a two-terminal device: Pins 1, 2, 3 and 4 shorted together, and Pins 5, 6, 7 and 8 shorted together.

10. Duration of output short circuit time should not exceed 10ms.

(9)

5000 V

0.6 pF

RMS

Ω

+ 10 hidden pages