Rev.1.0, Dec.01.2003, page 1 of 23
HA12240FP
Bus Interface Driver/Receiver IC
REJ03F0095-0100Z
Rev.1.0
Dec.01.2003
Description
The HA12240FP is 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 (3.3 V and 5.0 V available)
Current output driver circuit
Receiver input comparator circuit
Receiver output circuit (Open-collector output)
Standby circuit
Features
Supports two data inputs (Pins 1 and 3 are the input pins)
Comparators with hysteresis characteristics are adopted for the inputs (3.3 V and 5.0 V available)
Current drive output drivers adopted (Output current: 3.8 mA typical)
Comparators with hysteresis characteristics are adopted for the receivers
Wide receiver common-mode input operating range (Common-mode input operating range: 0 to 5 V typical)
The driver output /the receiver input (pins 5 and 6) can withstand high voltages (Maximum ratings of 18 V)
Standby functions (standby mode when pin 8 becomes low level)
Operating power-supply voltage range of 5 V 0.5 V
Block Diagram
+
+
7
1
3
S2
S1
COM
8
STB
BIAS
Driver output
(current)
2
R
Receiver
output
4
6
5
V
CC
BUS(+)
BUS()
HA12240FP
Rev.1.0, Dec.01.2003, page 2 of 23
Pin Functions
Pin No.
Symbol
Function
Equivalent Circuit
1
S1
Data input pin 1
20 k
1
2 R Receiver
output
pin
20
2
SW
3
S2
Data input pin 2
20 k
3
4 GND
GND
pin
5
BUS()
Bus output (),
Receiver input () pin
6
BUS(+)
Bus output (+),
Receiver input (+) pin
Receiver input (+)
Receiver input ()
6
V
REF
SW
5
I
I
7 V
CC
Power supply pin
8
STB
Standby input pin (Lo: ON, Hi: OFF)
100 k
80 k
8
HA12240FP
Rev.1.0, Dec.01.2003, page 3 of 23
Absolute Maximum Ratings
(Ta = 25C)
Item Symbol
Ratings
Unit
Note
Power-supply voltage
V
CC
7
V
Input voltage
V
IN
GND0.3 to V
CC
+0.3 V
Bus input voltage
Vbus
18
V
Allowable power dissipation
Pd
400
mW
Ta
85C
Operating temperature
Topr
40 to +85
C
Storage temperature
Tstg
55 to +125
C
Note: Recommended operating power supply voltage range: 5 V 0.5 V
Electrical Characteristics
(V
CC
= 5.0 V, Ta = 25C)
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
Test
Pin
Test
Circuit
High-level input voltage V
IHS1
2.1
--
--
V
V1 = 0
5 V, V3 = 0 V,
V6 V5 = 110 mV
1
Low-level input voltage
V
ILS1
--
--
1.65
V
V1 = 5
0 V, V3 = 0 V,
V6 V5 = 30 mV
1
High-level input current I
IHS1
--
--
1
A
V1 = 5 V, V3 = 0 V
1
S1
Low-level input current
I
ILS1
--
--
1
A
V1 = 0 V, V3 = 0 V
1
Fig. 1
High-level input voltage V
IHS2
2.1
--
--
V
V3 = 0
5 V, V1 = 0 V,
V6 V5 = 110 mV
3
Low-level input voltage
V
ILS2
--
--
1.65
V
V3 = 5
0 V, V1 = 0 V,
V6 V5 = 30 mV
3
High-level input current I
IHS2
--
--
1
A
V1 = 0 V, V3 = 5 V
3
S2
Low-level input current
I
ILS2
--
--
1
A
V1 = 0 V, V3 = 0 V
3
Fig. 1
High-level output
voltage (+)
V
OHD+
1.8
2.5
3.2
V
V1 = 5 V, V3 = 0 V
6
High-level output
voltage ()
V
OHD
1.8
2.5
3.2
V
V1 = 5 V, V3 = 0 V
5
High-level output
current
I
OH
3.1
3.8
4.5
mA
V1 = 5 V, V3 = 0 V,
I
OH
= ((V
OHD+
) (V
OHD
))/60
5, 6
Driver
Low-level output
current
I
OL
--
--
1
A
V1 = 0 V, V3 = 0 V,
I
OL
= ((V
OP+
) (V
OP
))/R
I
5, 6
Fig. 1
Reference operating voltage (+)
V
OP+
2.3
2.5
2.7
V
V1 = 0 V, V3 = 0 V
6
Fig. 1
Reference operating voltage ()
V
OP
2.3
2.5
2.7
V
V1 = 0 V, V3 = 0 V
5
Fig. 1
Driver output resistance *
1
R
O
5
10
15
k
V1 = 5 V, V3 = 0 V, V8 = 5 V,
R
O
= 0.6 V/(I6A I6B)
Fig.
3
Note: 1. Measure the current when V6 = (V
OP+
) + 0.3 V to make I6A and measure the current when V6 = (V
OP+
) 0.3
V to make I6B.
HA12240FP
Rev.1.0, Dec.01.2003, page 4 of 23
Electrical Characteristics (cont.)
(V
CC
= 5.0 V, Ta = 25C)
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
Test
Pin
Test
Circuit
High-level input voltage
(1)
V
IH1
--
80
110
mV
V6 = 0
5 V, Pin2 = 4 V or more,
V1 = 0 V, V3 = 0 V, V5 = 0 V,
V
IH1
= V6 V5
2
High-level input voltage
(2)
V
IH2
--
80
110
mV
V6 = 0
5 V, Pin2 = 4 V or more,
V1 = 0 V, V3 = 0 V, V5 = 4.5 V,
V
IH2
= V6 V5
2
Low-level input voltage
(1)
V
IL1
30
50
--
mV
V6 = 5
0 V, Pin2 = 1 V or less,
V1 = 0 V, V3 = 0 V, V5 = 0 V,
V
IL1
= V6 V5
2
Low-level input voltage
(2)
V
IL2
30
50
--
mV
V6 = 5
0 V, Pin2 = 1 V or less,
V1 = 0 V, V3 = 0 V, V5 = 4.5 V,
V
IL2
= V6 V5
2
Fig. 2
Input hysteresis
voltage (1)
V
IHYS1
15 30 45 mV
V
IHYS1
= V
IH1
V
IL1
Input hysteresis
voltage (2)
V
IHYS2
15 30 45 mV
V
IHYS2
= V
IH2
V
IL2
High-level common-
mode input voltage
V
IHCOM
4.5
--
--
V
V5 = 0
5 V, V5 when pin2 = 4 V
or less, V1 = 0 V, V3 = 0 V,
V6 V5 = 110 mV
5
Low-level common-
mode input voltage
V
ILCOM
5
--
--
V
V5 = 0
5 V, V5 when pin2 = 0.3
V or more, V1 = 0 V, V3 = 0 V,
V6 V5 = 30 mV
5
Fig. 2
Input resistance *
1
R
I
25 35 45 k
V1 = 0 V, V3 = 0 V, V8 = 5 V,
R
I
= 0.6 V/(I6A I6B)
5, 6
Fig. 3
High-level output
leakage current 1
I
OH1
--
--
1
A
V1 = 5 V, V3 = 0 V, V8 = 5 V
2
High-level output
leakage current 2
I
OH2
--
--
1
A V
CC
= 0 V, V1,V3,V8 = 0 V
2
High-level output
leakage current 3
I
OH3
--
--
1
A
V1,V3,V8 = 0 V
2
Low-level output
voltage 1
V
OL1
--
--
0.6
V
V1 = 0 V, V3 = 0 V, V8 = 5 V,
Adjust V
RL
to make apply current =
1.5 mA
2
Receiver
Low-level output
voltage 2
V
OL2
--
--
0.3
V
V1 = 0 V, V3 = 0 V, V8 = 5 V,
Adjust V
RL
to make apply current =
200
A
2
Fig. 1
Quiescent current 1
I
CC
H
4.5
6.5
8.5
mA
V1 = 5 V, V3 = 0 V
7
Fig. 1
Quiescent current 2
I
CC
L
1.05
1.46
1.87
mA
V1 = 0 V, V3 = 0 V
7
Fig. 1
Driver delay time (L
H) T
TR1
--
100
300
ns
See operating waveform figure
5, 6
Driver delay time (H
L) T
TR2
--
100
300
ns
See operating waveform figure
5, 6
Receiver delay time (L
H) T
DLY1
--
600
1200 ns
See operating waveform figure
2
Receiver delay time (H
L) T
DLY2
--
200
600
ns
See operating waveform figure
2
Fig. 5
Note: 1. Measure the current when V6 = (V
OP+
) + 0.3 V to make I6A and measure the current when V6 = (V
OP+
) 0.3
V to make I6B.
HA12240FP
Rev.1.0, Dec.01.2003, page 5 of 23
Electrical Characteristics (cont.)
(V
CC
= 5.0 V, Ta = 25C)
Item
Symbol
Min
Typ
Max
Unit
Test Conditions
Test
Pin
Test
Circuit
Power-supply off output leakage
current
I
OLEAK
--
--
1
A V
CC
= 0 V, V8 = 0 V, V6 = 5 V,
V1 = 0 V, V3 = 0 V, SW1 ON
6 Fig.
4
Standby mode current drain
I
CCstb
--
--
1
A
V1 = 5 V, V3 = 0 V, V8 = 0 V
7
Fig. 4
Standby mode output leakage
current
Istb-Leak -- -- 1
A
V1 = 5 V, V3 = 0 V, V8 = 0 V,
V6 = 5 V, SW1 ON
6 Fig.
4
Standby mode high-level input
voltage
VstbH
2
--
--
V
V8 = 0
5 V, V8 when pin5,6 = 2.3
V or more, V1 = 0 V, V3 = 0 V
8 Fig.
1
Standby mode low-level input
voltage
VstbL
--
--
0.9
V
V8 = 5
0 V, V8 when current
flowing into pin7 = 1
A or less,
V1 = 5 V, V3 = 0 V
8 Fig.
1
Standby mode high-level input
current
IstbH --
50
100
A
V1 = 5 V, V3 = 0 V, V8 = 5 V
8
Fig. 1
Standby mode low-level input
current
IstbL --
--
1
A
V1 = 5 V, V3 = 0 V, V8 = 0 V
8
Fig. 1
V
CC
0 V
V
CC
0.1
V
CC
0.9
0 V
30 mV
f = 50 kHz
Duty = 50%
110 mV
BUS(+) BUS()
R (pin 2)
Input waveform
0 V
V
CC
0.1
V
CC
0.9
T
TR1
T
TR2
T
DLY1
T
DLY2
Input/Output Waveform Figure
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