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參數(shù)資料
| 型號： | L9613B013TR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | RECTIFIER FAST-RECOVERY SINGLE 1A 50V 30A-ifsm 0.95V-vf 35ns 10uA-ir DO-41 1K/BULK |
| 中文描述： | 數(shù)據(jù)接口 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 70K |
| 代理商： | L9613B013TR |
ELECTRICALCHARACTERISTICS
(continued)
Symbol
C
KI,LO,RX
f
LI-LO
f
K-RX
f
TX-K
f
LI-LO
f
K-RX
f
TX-K
Parameter
Test Condition
Min.
Typ.
Max.
20
Unit
pF
kHz
Internal output capacities
Transmission frequency
9V < V
S
< 16V,
(external loads)
T
min
≥
20
R
KO
C
K
- K
line
for the definitionof tr, tf see
FIG. 1,
130
Rise Time
2)
0.4
2
μ
s
Fall Time
9V < V
S
< 16V,
(external loads)
T
min
≥
20
R
KO
C
K
- K
line
for the definitionof tr, tf see
FIG. 1
0.4
2
μ
s
t
OFF,LI-LO
t
OFF,K-RX
t
OFF,TX-K
t
ON,LI-LO
t
ON,K-RX
t
ON,TX-K
td
SB ON
Switch OFF time
1.3
3
μ
s
Switch ON time
9V < V
S
< 16V,
(external loads)
Tmin
≥
20
R
KO
C
K
- K
line
VTX = 0V, IK
≥
7mA
VLI = 0V, 9V < VS < 16V
see FIG. 2
1.3
3
μ
s
td
SB OFF
Standby reaction time
10
20
20
40
μ
s
μ
s
Note 2) Speed limitationrelated to external capacitance C
extRX, LO
andinternal impedance C
LO,RX
, RLO,RRX for rise time.
t
r
= R
LO,RX
(C
LO,RX
+ C
extRX, LO
)
1.38.
Note 3) In case of spikes on VCC
≥
0.5V KOUT will be switched On for typical 10
μ
s which represents the standby td
SB
reaction time.
FUNCTIONAL DESCRIPTION
The L9613B is a monolithic bus driver designedto provide bidirectional serial communication in automo-
tiveapplications.
The device provides a bidirectional link, called K, to the V
Bat
related diagnosis bus. It also includes a
separate comparator L which is also able to be linked to the V
Bat
bus. The input TX and output RX of K
are related to VCC with her integrated pull up resistances. Also the L comparator output LO has a pull
up resistanceconnectedto VCC.
All VBat bus defined inputs LI and K have supply voltage dependent thresholds together with sufficent
hysteresis to suppress line spikes. These pins are protected against overvoltages, shorts to GND and
VS and can also be driven beyond VS and GND. These features are also given for TX, RX and LI only
taking into account the behaviour of the internal pull up resistances. The thermal shut down function
switches OFF the K output if the chip temperatureincreases above the thermal shut down threshold. To
reactivate K again the chiptemperaturemust decrease below the K switch ON temp. To achieveno fault
for VS undervoltage conditions the outputs will be switched OFF and stay at high impedance. The de-
vice is also protected against reverse battery condition. During lack of VS or GND all pins shows high
impedance characteristic. To realize a lack of the VS related bus line LI and K the outputs LO and RX
shows defined ON status. Supressing all 4 classes of ”Schaffner” signals (Schaffner 1; 2; 3a,b; 4) all
pins can be load with short energy pulses of max.
±
0.2mJ. All these featurestogether with a high possi-
ble baud rate >130Kbaud,controlled output slopes for low EMI, a wide power supply voltage range and
a real standby function with zero power consumption IS
SB typ
≤
1
μ
A during system depowering VCC
≤
0.5V makethis devicehigh efficientfor automotivebus system.
After wake up of the system from SB condition the first output signal will have an additional delay time
td
typ
≤
5
μ
s.
The typical output voltage behaviour for the K, LO, RX outputs as a function of the output current is
shown in Fig.5. Fig.6 shows a waveform of the output signal when the low level changes from R
ON
I
OUT
to I
OUT
2
R
ON
+ U
BE
state. This variation occurs due to too low output current or after a negativetran-
sient forcedto the output or to the supplyvoltage line.
L9613B
4/10
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