U6807B-FP TEMIC [TEMIC Semiconductors], U6807B-FP Datasheet - Page 2

• Manufacturer Part Number: U6807B-FP
• Description: Hex-Driver for High Temperature Application
• Manufacturer: TEMIC [TEMIC Semiconductors]

Pin Description
Basic Circuitry
The integrated circuit, U6805B, requires a stabilized sup-
ply voltage (V
characteristics. An external buffer capacitor of C = 100 nF
value is recommended. An integrated 14-V Z-diode
between V
All input stages are provided with an integrated 250 k
pull-up 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:
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
on adjacent input stages.
A total clamping current of
with respect to the power dissipation.
U6807B
2 (5)
Pull–up resistor, R = 1 k
Capacitor to GND, C = 470 pF, see figure 3
S
"
GND
and ground protects the supply pin.
V
V
V
V
V
V
10 mA clamping currents without crosstalk
O1
S
O2
O3
O4
O5
O6
= 5 V
1
2
3
4
5
6
7
Figure 2. Pinning
"
5%) to comply with its electrical
"
30 mA should be observed
W
13335
14
13
12
11
10
9
8
V
V
V
V
V
V
V
I1
I2
I3
S
I4
I5
I6
W
Current Limitation of the
Output Stages
A temperature dependent current limitation between
25 mA and 100 mA protects the stages during a short.
An appropriate heat sink assembly with R
and/or a further reduction of the maximum ambient
temperature is recommended in order to avoid thermal
overstress. Depending on the numbers of output stages
which may be in short circuit condition these maximum
ratings are (with R
Refer to hexdriver U6805B if thermal shut down is
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
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
T
T
hyst
Pin
10
11
12
13
14
amb max
amb max
1
2
3
4
5
6
7
8
9
= 0.5 V typically.
Symbol
x
x
GND
V
V
V
V
V
V
V
V
V
V
V
V
V
80 C @ 2 channels shorted simultaneously
65 C @ 3 channels shorted simultaneously
O1
O2
O3
O4
O5
O6
I6
I5
I4
I3
I2
I1
S
thJA
Output 1
Output 2
Output 3
Ground
Output 4
Output 5
Output 6
Input 6
Input 5
Input 4
Supply voltage, 5 V
Input 3
Input 2
Input 1
TELEFUNKEN Semiconductors
< 120 K/W):
W
Function
resistor , the output
Rev. A2, 28-Apr-97
thJA
< 100 K/W