A Product Line of
Diodes Incorporated
DRDC3105
INTEGRATED RELAY, INDUCTIVE LOAD DRIVER
Description and Applications
The DRDC3105 is an integrated solid-state DC relay driver that can
switch inductive loads. It provides a robust driver interface by acting as
a buffer stage between sensitive logic circuits and that of 3V to 6V DC
inductive relay coils. With a low input drive current requirement, the
DRDC3105 only has slight loading on the input circuitry and it will
provide good transient isolation between output and input channels.
The output switch is guaranteed by design to go open-circuit and fall
into the off-state condition when input drive is lost or disconnected.
In the industry standard SOT23 and SOT26, the DRDC3105 comes as
a single or dual die which can replace three to six individual discrete
components within a single integrated package, including a Zener
across the output. The Zener will clamp at 6.6V to sink inductive
currents to ground which will reduce EMI noise in the system. By
integrating the Zener, the DRDC3105 eliminates the need for an
external free-wheeling diode and allows the driving of inductive loads
such as relays, solenoids, incandescent lamps, and small DC motors in:
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Automotive: 5.0V Driven Relays, Lamp Drivers, Motor Controls
Telecom Equipment: Modems, DSL, Cable (EMTA), Line Cards,
IP-PBX, Analog Terminal Adaptors, End-User Telecom Equipment
Desktop Computers, Printers, Photocopiers
LCD & Plasma TVs, Set-Top Boxes
Consumer Appliances, White Goods, Automated Door Control
Industrial Equipment including Process Control, ATE Equipment
Solar Inverters
Mechanical Data
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Case: SOT23 & SOT26
Case Material: “Green” Plastic Molding Compound;
UL Flammability Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Finish – Matte Tin Plated Leads, Solderable per
MIL-STD-202, Method 208
Weight: SOT23 = 0.008 grams (Approximate)
SOT26 = 0.018 grams (Approximate)
Features and Benefits
•
•
•
•
•
•
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Inductive load driver capable of driving 3 to 6V DC coils
Optimized to switch inductive loads from supply of 3 to 5V with
the capability to drive coils up to 2.5W from a 5V rail
Fully integrated into a single SOT23 or dual SOT26 package to
minimize footprint area and reduce number of components
Includes zener across output to reduce EMI noise
Internal low saturation BJT to reduce power dissipation in driving
high currents into the coil
Output guaranteed to be in off-state condition during no input
Near-Zero quiescent supply current in off-state condition with
minimal leakage
Rugged design and inherently robust by using solid-state BJT
technology integrated into a single die
ESD Protected up to 1kV on Human Body Model (HBM)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. "Green" Device (Note 3)
Qualified to AEC-Q101 Standards for High Reliability
SOT23
SOT26
SOT23
SOT26
GND
OUT
ESD PROTECTED
HBM TO 1kV
GND1
IN2
OUT1
IN1
GND2
Top View
Pin-Out
IN
Top View
Top View
Top View
Pin-Out
OUT2
Ordering Information
(Note 4)
Product
DRDC3105F-7
DRDC3105E6-7
Notes:
Package
SOT23
SOT26
Marking
1R6
3105
Reel size (inches)
7
7
Tape width (mm)
8
8
Quantity per reel
3,000
3,000
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen and Antimony free, "Green"
and Lead-Free.
3. Halogen and Antimony free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and <1000ppm antimony compounds.
4. For packaging details, go to our website at http://www.diodes.com/products/packages.html.
DRDC3105
Document number: DS35213
Rev. 5 - 2
1 of 10
www.diodes.com
March 2015
© Diodes Incorporated
A Product Line of
Diodes Incorporated
DRDC3105
Absolute Maximum Ratings
(@T
A
= +25°C, unless otherwise specified.)
Characteristic
Supply Voltage
Input Voltage (Forward)
Input Voltage (Reverse)
Output Sink Continuous Current
Repetitive Pulse Zener Energy Limit (Duty Cycle 0.01%)
Symbol
V
CC
V
IN(FWD)
V
IN(REV)
I
O
E
zpk
Limit
6.0
6.0
-0.5
500
50
Unit
V
V
V
mA
mJ
Thermal Characteristics for DRDC3105F (SOT23)
(@T
A
= +25°C, unless otherwise specified.)
Characteristic
Power Dissipation
Thermal Resistance, Junction to Ambient
Thermal Resistance, Junction to Leads
Operating and Storage Temperature Range
(Note 5)
(Note 6)
(Note 5)
(Note 6)
(Note 11)
Symbol
P
D
R
θJA
R
θJL
T
J,
T
STG
Value
310
350
403
357
350
-55 to +150
Unit
mW
°
C/W
°
C/W
°
C
Thermal Characteristics
for DRDC3105E6 (SOT26)
(@T
A
= +25°C, unless otherwise specified.)
Characteristic
(Notes 7 & 9)
Power Dissipation
Linear Derating Factor
(Notes 7 & 10)
(Notes 8 & 10)
Thermal Resistance, Junction to Ambient
Thermal Resistance, Junction to Leads
Operating and Storage Temperature Range
Notes:
Symbol
P
D
(Notes 7 & 9)
(Notes 7 & 10)
(Notes 8 & 10)
(Note 11)
R
θJA
R
θJL
T
J
, T
STG
Value
0.9
7.2
1.1
8.8
1.7
13.6
139
113
73
100
-55 to +150
Unit
W
mW/°
C
°
C/W
°
C/W
°
C
5. For a device mounted on minimum recommended pad layout 1oz weight copper that is on a single-sided FR4 PCB; device is measured under still air
conditions whilst operating in a steady-state.
6. Same as Note 5, except the device is mounted on 15mm X 15mm 1oz copper.
7. Same as Note 5, except the device is mounted on 25mm X 25mm 1oz copper.
8. Same as Note 7, except the device is measured at < 5 seconds.
9. For a device with one active die.
10. For a device with two die running at equal power.
11. Thermal resistance from junction to solder-point (at the end of the “OUT” lead).
DRDC3105
Document number: DS35213
Rev. 5 - 2
3 of 10
www.diodes.com
March 2015
© Diodes Incorporated
A Product Line of
Diodes Incorporated
DRDC3105
Electrical Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Characteristic
OFF CHARACTERISTICS
Output Zener Breakdown Voltage
Output Leakage Current @ 0 Input Voltage
“ON” State Input Voltage (Note 12)
“OFF” State Input Voltage (Note 13)
ON CHARACTERISTICS
Input Bias Current (H
FE
Limited)
Output Saturation Voltage
Output Sink Current – Continuous
SWITCHING CHARACTERISTICS
(Refer to Figure 1)
Propagation Delay Times:
High to Low Propagation Delay; (5.0V 74HC04)
Low to High Propagation Delay; (5.0V 74HC04)
High to Low Propagation Delay; 13 (3.0V 74HC04)
Low to High Propagation Delay; 13 (3.0V 74HC04)
High to Low Propagation Delay; 14 (5.0V 74LS04)
Low to High Propagation Delay; 14 (5.0V 74LS04)
Transition Times:
Fall Time; (5.0V 74HC04)
Rise Time; (5.0V 74HC04)
Fall Time; 13 (3.0V 74HC04)
Rise Time; 13 (3.0V 74HC04)
Fall Time; 14 (5.0V 74LS04)
Rise Time; 14 (5.0V 74LS04)
Notes:
Symbol
BV
(out)
BV
(−out)
I
OO
V
in(on)
V
in(off)
I
in
V
O(sat)
I
O(on)
Min
6.2
-
—
—
—
Typ
6.6
0.67
—
—
Max
7.0
-
0.1
30
1.5
—
Unit
V
µA
V
mV
mA
mV
mA
Test Condition
@ I
T
= 10 mA Pulse
V
O
= 5.5 V, T
A
= +25°
C
C
V
O
= 5.5 V, T
A
= +85°
I
O
=100 mA, V
O
= 150mV
I
O
=100 µA, V
O
= 4.9V
I
O
= 250 mA, V
O
= 0.25V
I
O
= 250 mA, I
in
= 1.5 mA
V
CE
= 0.25 V, I
in
= 1.5 mA
400
—
—
0.99
540
0.7
125
430
1.6
160
—
250
t
PHL
t
PLH
t
PHL
t
PLH
t
PHL
t
PLH
t
f
t
r
t
f
t
r
t
f
t
r
—
—
—
20.4
1.43
32.2
760
25.3
2.57
12.5
411
21.1
220
15.1
849
—
—
—
ns
µs
ns
ns
ns
µs
ns
ns
ns
ns
ns
ns
—
—
—
—
—
—
—
—
—
—
—
—
12. The device is guaranteed to be in “ON” state with V
IN(ON)
above 1.5V.
13. The device is guaranteed to be in “OFF” state with V
IN(OFF)
below 400mV.
DRDC3105
Document number: DS35213
Rev. 5 - 2
4 of 10
www.diodes.com
March 2015
© Diodes Incorporated
A Product Line of
Diodes Incorporated
DRDC3105
Typical Electrical Characteristics
(@T
A
= +25°C, unless otherwise specified.)
H
FE
, TRANSISTOR DC CURRENT GAIN
500
T
J
= 85°C
5
25°C
MC74HC04
@ 4.5 Vdc
MC68HC05C8
@ 5.0 Vdc
DRDC3105
V
IN
vs. I
in
MC74HC04
@ 3.0 Vdc
MC14049B @ 4.5 Vdc
MC68HC05C8 @ 3.3 Vdc
300
-40°C
INPUT VOLTAGE (V)
400
4
3
2
1
MC54LS04
+ BAL99LT1
200
100
0
1
--------V
O
= 1.0V
_____V
O
=
3.5V
0.25V
T
J
= 25°C
V
O
= 0.25V
10
100
I
O
, OUTPUT SINK CURRENT (mA)
0
0
1
2
3
INPUT CURRENT (mA)
4
Figure 2. Transistor DC Current Gain
Figure 3. Input V-I Requirement Compared
to Possible Source Logic Outputs
600
I
out
, OUTPUT CURRENT (mA)
I
in
= 1.6mA
1.4mA
1.2mA
1.0mA
0.8mA
0.6mA
0.4mA
0.2mA
0.1mA
45
40
35
30
25
20
15
10
5
0
0.00
OUTPUT CURRENT (mA)
500
400
300
200
100
0
0.0
0.5
T
J
= 85°C
25°C
-40°C
0.02
0.04
0.06
0.08
INPUT CURRENT (mA)
0.10
1.0 1.5 2.0 2.5 3.0 3.5
V
O
, OUTPUT VOLTAGE (Vdc)
4.0
Figure 4. Threshold Effects
1.2
V
out
, OUTPUT VOLTAGE (Vdc)
1.0
0.8
0.6
0.4
500mA
____
Figure 5. Transistor Output V-I Characteristic
V
Z
, ZENER CLAMP VOLTAGE (V)
10
T
J
= 25°C
----T
J
= -40°C
9
8
T
J
= 85°C
0.2
0.0
-0.2
I
out
= 10mA
350mA
175mA
50mA 125mA
7
25°C
-40°C
0.1
1
I
in
, INPUT CURRENT (mA)
10
6
1
10
100
I
Z
, ZENER CURRENT (mA)
Figure 6. Output Saturation Voltage versus
I
out
/I
in
Figure 7. Zener Clamp Voltage
versus Zener Current
DRDC3105
Document number: DS35213
Rev. 5 - 2
5 of 10
www.diodes.com
March 2015
© Diodes Incorporated
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