ChipFind - документация

Электронный компонент: U6805B-FP

Скачать:  PDF   ZIP
U6805B
TELEFUNKEN Semiconductors
Rev. A3, 28-Apr-97
1 (5)
Hex-Driver with Thermal Monitoring
Description
The hex-driver IC includes 6 non-inverted and current
limited output stages with an open collector. Common
thermal shutdown protects outputs against critical
junction temperature.
Each output can sink 20 mA, parallel output operation is
possible. The digital inputs have Schmitt-trigger function
with pull-up current sources to 5 V.
Features
D Six input comparators with Schmitt-trigger
characteristic
D Input clamping current capability to "10 mA
D Integrated protection cells (EMC, ESD, RF)
dedicated to all input stages
D Common shutdown by junction temperature monitor
D Low voltage reset with hysteresis
D ESD protection to human body model:
"2000 V (C = 100 pF, R = 1.5 kW)
D Output stages:
Short circuit protected with diode
Load-dump protected @ 1 k
W
No crosstalk on adjacent channels
Clamping current @ 2 mA
Jump start possible
Ordering Information
Extended Type Number
Package
Remarks
U6805BFP
SO14
Block Diagram
Under
voltage
detection
V
S
=5 V
11
1
2
V
O1
7
14
4
V
O2
V
O6
V
S
V
S
V
I1
V
I2
V
I6
GND
13334
Thermal
shutdown
3
V
O3
5
V
O4
6
V
O5
V
I3
V
I4
V
I5
13
12
10
9
8
Figure 1.
U6805B
TELEFUNKEN Semiconductors
Rev. A3, 28-Apr-97
2 (5)
Pin Description
1
2
3
4
14
13
12
11
V
O1
V
O3
V
I1
V
I2
V
I3
V
S
13335
5
6
7
GND
V
O5
V
O6
10
9
8
V
I4
V
I5
V
I6
V
O2
V
O4
Figure 2. Pinning
Pin
Symbol
Function
1
V
O1
Output 1
2
V
O2
Output 2
3
V
O3
Output 3
4
GND
Ground
5
V
O4
Output 4
6
V
O5
Output 5
7
V
O6
Output 6
8
V
I6
Input 6
9
V
I5
Input 5
10
V
I4
Input 4
11
V
S
Supply voltage, 5 V
12
V
I3
Input 3
13
V
I2
Input 2
14
V
I1
Input 1
Basic Circuitry
Integrated circuit, U6805B, requires a stabilized supply
voltage (V
S
= 5 V
"5%) to comply with its electrical
characteristics. An external buffer capacitor of C = 100 nF
value is recommended. An integrated 14-V Z-diode
between V
S
and ground protects the supply pin.
All input stages are provided with an integrated 250 k
W
pullup resistor and can be directly connected to a micro-
controller.
All output stages are open collectors each capable of
sinking 20 mA. Recommended external components:
Pullup resistor, R = 1 k
W
Capacitor to GND, C = 470 pF, see figure 3
Functional Description
General
ON state: Low level at the input stage activates the
corresponding output stage.
OFF state: The internal pull-up resistor gives high level
to the input comparator and deactivates the output stage.
7-V Z-diodes between each input pin and GND are
capable of
"10 mA clamping currents without crosstalk
on adjacent input stages.
A total clamping current of
"30 mA should be observed
with respect to the power dissipation.
Current Limitation of the Output
Stages and Overtemperature
Shut-down
A temperature dependent current limitation between
25 and 100 mA protects the stages during a short.
Additionally the chip temperature is monitored. For T
chip
> 148
_C all outputs are disabled and automatically
enabled with a hysteresis of
DTChip > 5 K.
Refer to hexdriver U6807B if the temperature shut down
is not required.
Transients and Load-Dump
An integrated 28-V Z-diode protects each output stage
against transients and load-dump (Schaffner pulses).
With the help of external 1-k
W resistor , the output
transistor is capable of the corresponding current which
flows during each of these conditions. Apart from that,
outputs are short circuit and overload protected.
Low Voltage Detection
When supply voltage is switched on, a power-on reset
pulse is generated internally, which disables all output
stages until a defined supply voltage level is reached. The
low voltage detection is provided with a hysteresis of
V
hyst
= 0.5 V typically.
U6805B
TELEFUNKEN Semiconductors
Rev. A3, 28-Apr-97
3 (5)
Absolute Maximum Ratings
Parameters
Symbol
Value
Unit
Supply voltage
V
S
7.0
V
Ambient temperature range
T
amb
40 to
+125
_C
Storage temperature range
T
stg
50 to
+150
_C
Maximum junction temperature
T
j
+150
_C
Thermal Resistance
Parameters
Symbol
Value
Unit
Junction ambient
R
thJA
120
K/W
Electrical Characteristics
V
S
= 5 V
"5%, T
amb
= 25
_C, reference point pin 4 (GND), unless otherwise specified, see figure 1.
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
Supply
Pin 11
Supply voltage
V
S
4.75
5.25
V
Supply current
Inputs open
Inputs closed to GND
I
S
I
S
0.8
7
3.2
13
mA
mA
Low voltage detection
threshold
ON
OFF
V
TH(ON)
V
TH(OFF)
3.7
3.0
4.6
3.8
V
V
Low voltage hysteresis
V
hyst
0.55
1.05
V
Temperature shut down
T
Chip
140
149
_C
Temperature shut-down
hysteresis
T
hyst
5
_C
Inputs
Pins 8, 9, 10, 12, 13 and 14
Z-diode protection voltage
V
I
6.7
8.5
V
Z-diode clamping current
I
I
"10
mA
Pull-up resistor
R
I
170
250
305
k
W
Switching threshold
OFF
ON
V
I
V
I
3.3
1.8
V
V
Hysteresis
V
hyst
1.5
V
Outputs
Pins 1, 2, 3, 5, 6 and 7
Z-diode protection voltage
V
O
26.5
V
Integrated capacitor
5
pF
Leakage current
I
Leak
2.5
mA
Saturation voltage (I = 20 mA)
V
Sat
0.7
V
Current limitation
I
limit
25
mA
Propagation delay
(470 pF, 1 k
W, 20 V)
t
d
5
ms
U6805B
TELEFUNKEN Semiconductors
Rev. A3, 28-Apr-97
4 (5)
Application Circuit
V
S
=5 V
V
I1
V
I2
V
I3
Hexdriver IC
U6805B
V
O1
V
O2
V
O3
C
C
C
R
R
R
V
Batt
6x 1k
Load
100 nF
Micro
controller
V
I4
V
I5
V
I6
V
O4
V
O5
V
O6
R
R
R
C
6x 470 pF
C
C
13336
Figure 3. Application schematic
Package Information
13035
technical drawings
according to DIN
specifications
Package SO14
Dimensions in mm
0.25
0.10
8.75
0.4
1.27
7.62
1.4
5.2
4.8
3.7
3.8
6.15
5.85
0.2
14
8
14
8
U6805B
TELEFUNKEN Semiconductors
Rev. A3, 28-Apr-97
5 (5)
Ozone Depleting Substances Policy Statement
It is the policy of TEMIC TELEFUNKEN microelectronic GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems
with respect to their impact on the health and safety of our employees and the public, as well as their impact on
the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as
ozone depleting substances ( ODSs ).
The Montreal Protocol ( 1987 ) and its London Amendments ( 1990 ) intend to severely restrict the use of ODSs and
forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban
on these substances.
TEMIC TELEFUNKEN microelectronic GmbH semiconductor division has been able to use its policy of
continuous improvements to eliminate the use of ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively
2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency ( EPA ) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively.
TEMIC can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain
such substances.
We reserve the right to make changes to improve technical design and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each customer
application by the customer. Should the buyer use TEMIC products for any unintended or unauthorized
application, the buyer shall indemnify TEMIC against all claims, costs, damages, and expenses, arising out of,
directly or indirectly, any claim of personal damage, injury or death associated with such unintended or
unauthorized use.
TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423