HIT HA12187FP Datasheet

HA12187FP

Bus Interface Driver/Receiver IC

ADE-207-174A (Z)

2nd Edition

Jun. 1999

Description

The HA12187FP was developed to be used as a bus interface driver/receiver IC in automotive audio equipment controllers. It implements a two-wire serial bus.

Functions

• Two-input OR circuit

• Input comparator circuit

• Current output driver circuit

• Receiver input comparator circuit

• Receiver output circuit

• Standby circuit

Features

• Supports two data inputs (Pins 1 and 3 are the input pins)

• Comparators with hysteresis characteristics were adopted for the inputs

• Current drive output drivers adopted (Output current: 3.8 mA typical)

• Comparators with hysteresis characteristics were adopted for the receivers

• Wide receiver common-mode input operating range (Common-mode input operating range: 0 to 5 V

typical)

• The driver output and the receiver input can withstand high voltages (Maximum rating: 18 V)

• Standby function (The IC enters standby mode when pin 8 goes low)

• Operating power-supply voltage range: 5 V ±0.5 V

HA12187FP

Block Diagram

S1

V

CC

7

1

3S2

+ –

Driver output

(current)

BUS (+)

6

8

2R

BIAS

Receiver

output

COM

5

BUS (–)

– +

4

Rev.2, Jun. 1999, page 2 of 23

Pin Functions

Pin No. Symbol Function Equivalent Circuit

1 S1 Data input

1

20 k

HA12187FP

2 R out Receiver output

3 S2 Data input

4GNDGND 5 BUS (–) Bus output (–) Receiver input (–) 6 BUS (+) Bus output (+) Receiver input (+)

7VCCPower supply 8 STB Standby control input

SW

3

Receiver input (+)

Receiver input (–)

8

20 k

100 k

100

20k

SW

2

I

6

V

REF

5

I

Rev.2, Jun. 1999, page 3 of 23

HA12187FP

Absolute Maximum Ratings (Ta = 25°C)

Item Symbol Ratings Unit Notes

Power-supply voltage V Allowable power dissipation Pd 400 mW Ta ≤ 85°C Operating temperature Topr –40 to 85 °C Storage temperature Tstg –55 to 125 °C Input voltage Vin –1.0 to 6.7 V Bus input voltage Bus 18 V Note: Recommended operating power supply voltage range: 5 V ±0.5 V

CC

7V

Rev.2, Jun. 1999, page 4 of 23

HA12187FP

Electrical Characteristics (VCC = 5.0 V, Ta = 25°C)

Test

Item Symbol Min Typ Max Unit Test Conditions

S1 High-level input

voltage

V

IHS1

3.5 — — V V1 = 0 V → 5 V, V3 = 0 V With the potential difference between pin 5 and pin 6 120 mV or more

Low-level input voltage

V

ILS1

— — 1.5 V V1 = 5 V → 0 V, V3 = 0 V

With the potential difference between pin5 and pin 6 20 mV or less

High-level input

I

IHS1

— — 1 µA V1 = 5 V, V3 = 0 V 1

current Low-level input

I

ILS1

— — 1 µA V1 = 0 V, V3 = 0 V 1

current

S2 High-level input

voltage

V

IHS2

3.5 — — V V3 = 0 V → 5 V, V1 = 0 V With the potential difference between pin 5 and pin 6 120 mV or more

Low-level input voltage

V

ILS2

— — 1.5 V V3 = 5 V → 0 V, V1 = 0 V

With the potential difference between 5 and pin 6 20 mV or less

High-level input

I

IHS2

— — 1 µA V1 = 0 V, V3 = 5 V 3

current Low-level input

I

ILS2

— — 1 µA V1 = 0 V, V3 = 0 V 3

current

Driver High-level

I

OH

3.0 3.8 4.8 mA IOH = | V

OHD+

– V

| / 62 Ω 5, 6 Figure 1

OHD–

output current Low-level output

leakage current Reference

I

OL

V

OP+

— — 1 µA Pin 5 voltage = V

IOL = | V

OP+

– V

OP–

| / RI

2.3 2.5 2.7 V V1 = 0 V, V3 = 0 V 6

operating voltage (+)

Reference

V

OP–

2.3 2.5 2.7 V V1 = 0 V, V3 = 0 V 5

operating

voltage (–) Current drain 1 ICCH 5.5 7.3 9.5 mA V1 = 5 V, V3 = 0 V 7 Figure 1 Current drain 2 ICCL 1.7 2.2 2.7 mA V1 = 0 V, V3 = 0 V 7 Figure 1

Circuit

1 Figure 1

1

3 Figure 1

3

5, 6

Rev.2, Jun. 1999, page 5 of 23

HA12187FP

Electrical Characteristics (VCC = 5.0 V, Ta = 25°C) (cont)

Item Symbol Min Typ Max Unit Test Condition

Recei ver

Power supply off output leakage current

STB on voltage VSTBon — — 1.5 V V8 = 5 → 0 V, V1 = 5 V, V8

STB off voltage VSTBoff 3.5 — — V V8 = 0 → 5 V, V1 = 5 V, V8

Standby mode current drain

Standby mode leakage current

Delay time (L → H) DLY1 — 600 800 nS See the operating

Delay time (H → L) DLY2 — 450 800 nS See the operating

Note: 1. I1 is the measured current when V6 = (V

High-level input

voltage (1)

Low-level input

voltage (1)

Input hysteresis

voltage (1)

High-level

common-mode

input voltage

Low-level

common-mode

input voltage

Receiver input

resistance*

1

High-level

output voltage

Low-level output

voltage

) – 0.3 V.

(V

OP+

V

IH1

— 80 120 mV V6 = 0 → 5 V, pin 2 = 4 V

or more, V1 = 0V, V3 = 0V, V5 = V

V

IL1

20 45 — mV V6 = 5 → 0 V, pin 2 = 1 V

OP–

, V

IH1

= V6 – V5

or less, V1 = 0 V, V3 = 0 V,

V

IHYS1

IHCOM

V5 = V

10 35 60 mV V

IHYS1

= V

4.5 — — V V5 = 0 → 5 V, pin 2 = 4 V

OP–,VIL1

IH1

= V6 – V5

– V

IL1

or more, V1 = 0 V, V3 = 0 V, V6 – V5 = 120 mV

V

ILCOM

5 ——V V5 = 0 → 5 V, pin 2 = 1 V

or less, V1 = 0 V, V3 = 0 V, V6 – V5 = 20 mV

RI 25 35 45

V

I

OLEAK

OH

OL

4.5 — — V V1 = 5 V, V3 = 0 V 2 Figure 1

— — 1.0 V V1 = 0 V, V3 = 0 V 2 Figure 1

——1 µAVCC off, V8 = 0 V, V6 = 5 V,

kΩ

V1 = 0 V,

0.6V

=

RI

I1−I2

V1 = 0 V, V3 = 0 V, SW1 on

≤ 20 µA

CC

≥ 4.5 mA

CC

I

CCstb

when I

— 10 20 µA V1 = 5 V, V3 = 0 V, V8 = 0V7 Figure 4

Istb-Leak — — 1 µA V1 = 5 V, V3 = 0 V, V8 = 0

V, V6 = 5 V, SW1 on

waveform figure

) + 0.3 V, and I2 is the measured current when V6 =

OP+

Test

Circuit

2 Figure 2

5 Figure 2

5, 6 Figure 3

5, 6 Figure 4

7 Figure 4

5, 6 Figure 4

2 Figure 5

Rev.2, Jun. 1999, page 6 of 23

Test Circuits

HA12187FP

V8

5 V

A

1

2

20 p

3

V1

V

47 k

V3

0 V

A 8

HA12187FP

4

0.1 µ

A 7

V

CC

5 V

6

V

62 Ω

5

V

Test Circuit 1

V8

5 V

8

20 p

1

2

3

HA12187FP

4

V1

0 V

V

47 k

V3

0 V

0.1 µ

7

V

CC

5 V

6

62 Ω

5

V6

V

V5

Test Circuit 2

V8

5 V

8

20 p

1

2

3

HA12187FP

4

V1

V

47 k

V3

0 V

0.1 µ

7

V

CC

5 V

6

5

A

62 Ω

V6

Test Circuit 3

Rev.2, Jun. 1999, page 7 of 23