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

			VCC
			7
S1	1	+	Driver output
		–	(current)
			BUS (+)
S2	3		6
	8	BIAS	5
			BUS (–)
R 2		Receiver	–
		output	COM
			+
			4

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

HA12187FP

Pin Functions

Pin No.	Symbol	Function	Equivalent Circuit
1	S1	Data input	1
			20 k

2	R out	Receiver output
		SW
		2
		100
		SW

3 S2 Data input

3

20k

4	GND	GND

5BUS (–) Bus output (–) Receiver input (–)

6BUS (+) Bus output (+) Receiver input (+)

SW	I
Receiver input (+)	6
	VREF

Receiver input (–) 5

I

7	VCC	Power supply
8	STB	Standby control input

8

20 k

100 k

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

HA12187FP

Absolute Maximum Ratings (Ta = 25°C)

Item	Symbol	Ratings	Unit	Notes
Power-supply voltage	VCC	7	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

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

HA12187FP

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

									Test	Test
Item		Symbol	Min	Typ	Max	Unit	Test Conditions		Pin	Circuit
S1	High-level input	VIHS1	3.5	—	—	V	V1 = 0 V	→ 5 V, V3 = 0 V	1	Figure 1
	voltage						With the potential
							difference between pin 5
							and pin 6 120 mV or more
	Low-level input	VILS1	—	—	1.5	V	V1 = 5 V	→ 0 V, V3 = 0 V	1
	voltage						With the potential
							difference between pin5
							and pin 6 20 mV or less
	High-level input	IIHS1	—	—	1	µA	V1 = 5 V, V3 = 0 V		1
	current
	Low-level input	IILS1	—	—	1	µA	V1 = 0 V, V3 = 0 V		1
	current
S2	High-level input	VIHS2	3.5	—	—	V	V3 = 0 V	→ 5 V, V1 = 0 V	3	Figure 1
	voltage						With the potential
							difference between pin 5
							and pin 6 120 mV or more
	Low-level input	VILS2	—	—	1.5	V	V3 = 5 V	→ 0 V, V1 = 0 V	3
	voltage						With the potential
							difference between 5 and
							pin 6 20 mV or less
	High-level input	IIHS2	—	—	1	µA	V1 = 0 V, V3 = 5 V		3
	current
	Low-level input	IILS2	—	—	1	µA	V1 = 0 V, V3 = 0 V		3
	current
Driver	High-level	IOH	3.0	3.8	4.8	mA	IOH = | VOHD+ – VOHD– | / 62 Ω		5, 6	Figure 1
	output current
	Low-level output	IOL	—	—	1	µA	Pin 5 voltage = V OP–		5, 6
	leakage current						IOL = | VOP+ – VOP– | / RI
	Reference	VOP+	2.3	2.5	2.7	V	V1 = 0 V, V3 = 0 V		6
	operating
	voltage (+)
	Reference	VOP–	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

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

HA12187FP

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

Test

Test

Item

Symbol

Min

Typ

Max

Unit

Test Condition

Pin

Circuit

Recei

High-level input

VIH1

—

80

120

mV

V6 = 0

→

5 V, pin 2 = 4 V

2

Figure 2

ver

voltage (1)

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

V5 = VOP–, VIH1 = V6 – V5

Low-level input

VIL1

20

45

—

mV

V6 = 5

→

0 V, pin 2 = 1 V

2

Figure 2

voltage (1)

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

V5 = VOP–,VIL1 = V6 – V5

Input hysteresis

VIHYS1

10

35

60

mV

VIHYS1 = VIH1 – VIL1

voltage (1)

High-level

VIHCOM

4.5

—

—

V

V5 = 0

→

5 V, pin 2 = 4 V

5

Figure 2

common-mode

or more, V1 = 0 V, V3 = 0

input voltage

V, V6 – V5 = 120 mV

Low-level

VILCOM

5

—

—

V

V5 = 0

→

5 V, pin 2 = 1 V

5

Figure 2

common-mode

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

input voltage

V6 – V5 = 20 mV

Receiver input

RI

25

35

45

kΩ

V1 = 0 V,

5, 6

Figure 3

resistance*1

RI =

0.6V

I1− I2

High-level

VOH

4.5

—

—

V

V1 = 5 V, V3 = 0 V

2

Figure 1

output voltage

Low-level output

VOL

—

—

1.0

V

V1 = 0 V, V3 = 0 V

2

Figure 1

voltage

Power supply off output

IOLEAK

—

—

1

µA

V CC off, V8 = 0 V, V6 = 5 V,

5, 6

Figure 4

leakage current

V1 = 0 V, V3 = 0 V, SW1

on

STB on voltage

VSTBon

—

—

1.5

V

V8 = 5

→

0 V, V1 = 5 V, V8

7

Figure 4

when ICC ≤

20 µA

STB off voltage

VSTBoff

3.5

—

—

V

V8 = 0

→

5 V, V1 = 5 V, V8

7

Figure 4

when ICC ≥

4.5 mA

Standby mode current

ICCstb

—

10

20

µA

V1 = 5 V, V3 = 0 V, V8 = 0

7

Figure 4

drain

V

Standby mode leakage

Istb-Leak

—

—

1

µA

V1 = 5 V, V3 = 0 V, V8 = 0

5, 6

Figure 4

current

V, V6 = 5 V, SW1 on

Delay time (L →

H)

DLY1

—

600

800

nS

See the operating

2

Figure 5

waveform figure

Delay time (H →

L)

DLY2

—

450

800

nS

See the operating

2

Figure 5

waveform figure

Note: 1. I1 is the measured current when V6 = (VOP+) + 0.3 V, and I2 is the measured current when V6 = (VOP+) – 0.3 V.

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

HA12187FP

Test Circuits

			V8	A	A	0.1 µ	VCC
			5 V				5 V
				8	7
	V1	A	1
							6
			2	HA12187FP			62 Ω	V
V	47 k
		20 p					5
		A	3					V
	V3
	0 V				4

Test Circuit 1

			V8		0.1 µ	VCC
			5 V			5 V
			8	7
	V1	1
	0 V					6
		2	HA12187FP			62 Ω	V6
V	47 k						V
		20 p				5
		3					V5
	V3
	0 V			4

Test Circuit 2

		V8		0.1 µ	VCC
		5 V			5 V
			8	7
	V1	1
				6	A
		2	HA12187FP		62 Ω	V6
V	47 k
		20 p		5
	V3	3
	0 V			4

Test Circuit 3

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