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Электронный компонент: CS1107EDF8

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Features
V
CC
Control
Output
Gnd
Gnd
Gnd
Gnd
Duty cycle
during
short circuit
Overtemp
Shutdown
short circuit
detect
open circuit
detect
I
SOURCE
Drive
& Bias
+
+
-
-
Fault
33V
s
Fault Detection
Open Circuit
Short Circuit
Overtemperature
s
On-Chip Flyback
Protection
s
Low Standby Current
Package Options
CS1107
Single Relay Driver IC
CS1107
Description
This ASIC provides up to 350mA of
drive current for driving a relay.
On-chip diagnostic features include
open and short circuit detection in
the on state, duty cycle current limit
control, and thermal shutdown.
Faults are reported on the
lead.
is an active-low output.
An on-chip zener provides protec-
tion from flyback pulses from the
relay. Internal pull-down circuitry
is provided to ensure the output
pin turns off when the Control pin
is floating.
Fault
Fault
Block Diagram
Absolute Maximum Ratings
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65C to 150C
V
CC
,
, Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 6V
ESD Capability (Human Body Model). . . . . . . . . . . . . . . . . . . . . . . . . . . 2kV
Peak Transient Voltage (output off mode, output pin only)
(26V load Dump @ 14V V
BAT
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40V
Lead Temperature Soldering
Reflow (SMD styles only) . . . . 60 sec. max above 183C, 230C peak
Fault
Output
1
V
CC
Gnd
Gnd
Control
Gnd
Gnd
Fault
8 Lead SO
(internally fused leads)
1
A Company
Rev. 1/29/99
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com
Electrical Characteristics: 4.75V V
CC
5.25V, -40C T
A
85C, -40C T
J
150C
CS1107
2
Package Pin Description
PACKAGE PIN #
PIN SYMBOL
FUNCTION
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
8 Lead SO
(Internally Fused Leads)
1
Output
Open collector output.
2
V
CC
5V regulated supply input.
3
Open collector diagnostic output low during open
load, short circuit and overtemperature conditions.
4
Control
TTL compatible input. A high on this pin turns the
output on.
5, 6, 7, 8
Ground
Signal ground.
Fault
s Supply Requirements
V
CC
Quiescent Current
Output ON
3
6
mA
V
CC
Quiescent Current
Output OFF
70
250
A
s Output
Leakage Current
V
BAT
=14V
0
100
A
Saturation Voltage
I
OUTPUT
= 350mA
1.1
1.5
V
I
OUTPUT
= 180mA
0.9
1.3
V
V
CLAMP
V
CC
< 4.5V, I
OUTPUT
= 180mA
29
33
36
V
s Current Sense
Short Circuit Current
350
500
650
mA
Open Circuit Current
Output in the ON state
20
40
60
mA
s Control - Input
Input Voltage
Logic = High
2.0
V
Logic = Low
0.8
V
Input Current
Control = V
CC
40
80
A
s Fault Output - (Open Collector)
Output Low Voltage
I
FAULT
= 250A (sink)
0.24
0.40
V
s Overtemperature Shutdown
T
J
Output Disable Threshold
(Guaranteed by Design)
150
180
C
T
J
Hysteresis
(Guaranteed by Design)
5
C
CS1107
3
V
BAT
V
CC
Output
Gnd
V
CC
Control
Gnd
CS1107
Gnd
Gnd
Fault
microprocessor
20k
10nF
C
MODULE(ESD)
Applications Diagram
Circuit Description
The CS1107 relay driver IC provides up to 350mA of drive
current in a low-side configuration. The Output driver pin
is controlled through the TTL compatible Control input
pin. A high condition on the Control pin turns the output
pin on.
The
pin reports short circuit, open circuit, and
overtemperature conditions on the IC. If a fault is present,
the open collector output
pin will be low. Typical
numbers for faults are: exceeding 500mA of drive current
will report a short circuit. Less than 40mA (typical) will
report an open circuit. A temperature fault will be reported
when the die temperature exceeds 180C (typical). Faults
are only reported when the Control pin is high, due to the
low quiescent current when the Control pin is low and the
output device is turned off.
Overcurrent protection is provided by duty cycle control.
When the Output current exceeds the current limit thresh-
old, the output enters duty cycle mode to reduce power
dissipation of the IC to a safe level. The higher the thresh-
old is exceeded the lower the duty cycle becomes.
A 33V on-chip zener diode on the Output pin protects the
device from flyback pulses when a relay is turned off. The
saturation voltage of this pin will not exceed 1.5V at
350mA.
Fault
Fault
Thermal Data
8 Lead SO
(internally fused leads)
R
QJC
typ
25
C/W
R
QJA
typ
110
C/W
4
Rev. 1/29/99
1999 Cherry Semiconductor Corporation
Package Specification
PACKAGE DIMENSIONS IN mm (INCHES)
D
Lead Count
Metric
English
Max
Min
Max
Min
8 Lead SO
5.00
4.80
.197
.189
PACKAGE THERMAL DATA
CS1107
Ordering Information
Part Number
Description
CS1107EDF8
8 Lead SO
(internally fused leads)
CS1107EDFR8
8 Lead SO
(internally fused leads)
(tape & reel)
Cherry Semiconductor Corporation reserves the right to
make changes to the specifications without notice. Please
contact Cherry Semiconductor Corporation for the latest
available information.
Surface Mount Narrow Body (D); 150 mil wide
1.27 (.050) BSC
0.51 (.020)
0.33 (.013)
6.20 (.244)
5.80 (.228)
4.00 (.157)
3.80 (.150)
1.57 (.062)
1.37 (.054)
D
0.25 (0.10)
0.10 (.004)
1.75 (.069) MAX
1.27 (.050)
0.40 (.016)
REF: JEDEC MS-012
0.25 (.010)
0.19 (.008)