TDA8143 View Datasheet(PDF) - STMicroelectronics
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TDA8143 Datasheet PDF : 9 Pages
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TDA8143
ELECTRICAL CHARACTERISTICS (VCC = 12 V, Tamb = 25oC unless otherwise specified)
Symbol
VCC
IQ
Ip0
In0
Io0
GON
GOFF
GREMOTE
I5
RINS
Parameter
Supply Voltage
Quiescent Current
Positive Output Current (source)
Negative Output Current (sink)
Positive quiescent output current forcing
the output to 6 V and the sense input to
ground output externally forced to 6 V.
Transconductance ON Phase (1)
Transconductance OFF Phase (2)
Transconductance Standby Mode
Current Source Pin 6
Sense Input Resistance
IINS
Sense Input Bias Current
RSYN
Synchronous Detection Input Resistance
VTHS
VSYN
VTHA
IINA
Threshold Voltage of the Synchronous
Detection Input
SYNC DETECT Input Voltage
Threshold Voltage of Control Input
Pull up Current of Control Input
VTHB
IINB
Threshold Voltage Remote Input
Pull-up Current of the Remote Input
tdr
tdon
VCC–VOUT
VCC ON
VCC OFF
VS limit
Remote Delay Time (3)
On Delay Time
Output Voltage Drop for Ip0 = 1 A
Supply Voltage for Device "ON"
Supply Voltage for Device "OFF"
(output internally switched to ground)
Sense Limit Voltage (4)
Test Conditions
All Inputs Open
Remote Input1
Remote Input0
See Figure 1
See Figure 1
Remote Input0
V7 = 500 mV
VS > 0
VS < 0
VS = 0
Remote Input = 1
VSYN < 7 V
VSYN > 7 V
0 < VIN < VTHA
VIN > VTHA + 0.5 V
0 < VIN < VTHB
VIN > VTHB + 0.5 V
I0 ≥ 0
Min. Typ. Max. Unit
7
18
V
10
15
25
mA
1.5
A
2
A
120 150 200 mA
50
80
100 mA
1.8
2.0
2.2
A/V
1.8
2.0
2.2
A/V
0.675 0.75 0.825 A/V
135
165
200
µA
0.7
1
1.3
kΩ
0.35 0.5
0.7
kΩ
– 200 – 300 – 400 µA
30
60
150
kΩ
7
10
15
kΩ
1
1.8
2.8
V
30
V
1.5
2
2.5
V
– 50 – 100 – 160 µA
–1
0
+1
µA
1.5
2
2.5
V
– 50 – 100 – 160 µA
–1
0
+1
µA
190 250 300
µs
3
4.5
µs
2
2.8
3
V
5.8
6.4
7.0
V
5.6 VCC ON 6.8
V
– 0.2 V
0.8
0.9
1
V
Notes : 1. GON is measured with V4 varying from 150mV to 350mV (Pin 6 is grounded)
2. GOFF is measured with V6 varying from 150mV to 350mV (Pin 4 is grounded)
3. When the remote input goes from HIGH to LOW the BU508 is switched off and it remains in this condition for the time tdr.
4. The sense input voltage VS is internally limited and results in a limited positive output current Ip0 = g. VS limit. Note that due to
the storage time tS of the BU508 limiting of VS leads to a reduced base current of the BU508 and the output current I0 is going to
the positive quiescent current Io0.
TRUTH TABLE
Logics Inputs
Control Input
Remote/Standby
Output I0
0
Floating or 1
Floating or 1
Floating or 1
I0 > 0
I0 < 0 (5)
BU508 ON
BU508 OFF
X
0
I0 < 0 (5)
0 < t < tdr
BU508 OFF
X
0
I0 > 0
t > tdr
BU508 ON
Note : 5. IO < 0 means that the sink current flows into the output to ground.
Mode
Normal Function
Remote/Standby
Function
3/9
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