rnal 24kHz Oscillator
Digital Control Input
Adjustable Delay and Duty Cycle
Over/ Under Current Indicator
q
FULLY PROTECTED
Thermal Shutdown with Indicator
Internal Current Limit
q
POWER PACKAGES: 7-Lead TO-220 and
7-Lead Surface-Mount DDPAK
APPLICATIONS
q
ELECTROMECHANICAL DRIVER:
Solenoids
Positioners
Actuators
High Power Relays/Contactors
Valves
Clutches/Brakes
q
SOLENOID OVERHEAT PROTECTORS
q
FLUID AND GAS FLOW CONTROLLERS
q
PART HANDLERS
q
ELECTRICAL HEATERS/COOLERS
q
MOTOR SPEED CONTROLLERS
q
INDUSTRIAL CONTROL
q
FACTORY AUTOMATION
q
MEDICAL ANALYSIS
q
PHOTOGRAPHIC PROCESSING
DESCRIPTION
The DRV102 is a high-side power switch employing
a pulse-width modulated (PWM) output. Its rugged
design is optimized for driving electromechanical de-
vices such as valves, solenoids, relays, actuators, and
positioners. The DRV102 is also ideal for driving
thermal devices such as heaters and lamps. PWM
operation conserves power and reduces heat rise in the
device, resulting in higher reliability. In addition, ad-
justable PWM allows fine control of the power deliv-
ered to the load. Time from dc output to PWM output
is externally adjustable.
DRV102
DRV102
International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111
Twx: 910-952-1111 Internet: http://www.burr-brown.com/ Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
Delay
Adjust
Input
(TTL-Compatible)
On
Off
Thermal Shutdown
Over/Under Current
Flag
Duty Cycle
Adjust
Load
DRV102
24kHz
Oscillator
PWM
2
3
1
7
5
(+8V to +60V)
(Gnd electrically
connected to tab)
Out
6
Gnd
(1)
4
V
S
Delay
The DRV102 can be set to provide a strong initial
closure, automatically switching to a soft hold mode
for power savings. Duty cycle can be controlled by a
resistor, analog voltage, or digital-to-analog converter
for versatility. A flag output indicates thermal shut-
down and over/under current limit. A wide supply
range allows use with a variety of actuators.
The DRV102 is available in 7-lead staggered TO-220
package and a 7-lead surface-mount DDPAK plastic
power package. It operates from 55
°
C to +125
°
C.
For most current data sheet and other product
information, visit www.burr-brown.com 2
®
DRV102
SPECIFICATIONS
At T
C
= +25
°
C, V
S
= +24V, load = series diode MUR415 and 100 , and 4.99k Flag pull-up to +5V, unless otherwise noted.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the users own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
DRV102T, F
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Saturation Voltage, Source
I
O
= 1A
+1.7
+2.2
V
I
O
= 0.1A
+1.3
+1.7
V
Current Limit
2
2.7
3.4
A
Under-Scale Current
16
mA
Leakage Current
Output Transistor Off, V
S
= +60V, V
O
= 0V
±
0.01
±
2
mA
DIGITAL CONTROL INPUT
(1)
V
CTR
Low (output disabled)
0
+1.2
V
V
CTR
High (output enabled)
+2.2
V
S
V
I
CTR
Low (output disabled)
V
CTR
= 0V
80
(2)
µ
A
I
CTR
High (output enabled)
V
CTR
= +5V
20
(2)
µ
A
Propagation Delay: On-to-Off
0.9
µ
s
Off-to-On
1.8
µ
s
DELAY TO PWM
(3)
dc to PWM Mode
Delay Equation
(4)
Delay to PWM C
D
10
6
(C
D
in F)
s
Delay Time
C
D
= 0.1
µ
F
80
97
110
ms
Minimum Delay Time
(5)
C
D
= 0
15
µ
s
DUTY CYCLE ADJUST
Duty Cycle Range
10 to 90
%
Duty Cycle Accuracy
49% Duty Cycle, R
PWM
= 25.5k ±
1
±
7
%
vs Supply Voltage
49% Duty Cycle, V
S
= 8V to 60V
±
1
±
5
%
Nonlinearity
(6)
20% to 80% Duty Cycle
±
2
% FSR
DYNAMIC RESPONSE
Output Voltage Rise Time
V
O
= 10% to 90% of V
S
0.25
2.5
µ
s
Output Voltage Fall Time
V
O
= 90% to 10% of V
S
0.25
2.5
µ
s
Oscillator Frequency
19
24
29
kHz
FLAG
Normal Operation
20k Pull-Up to +5V, I
O
< 1.5A
+4
+4.9
V
Fault
(7)
Sinking 1mA
+0.2
+0.4
V
Sink Current
V
FLAG
= 0.4V
2
mA
Under-Current Flag: Set
5.2
µ
s
Reset
11
µ
s
Over-Current Flag:
Set
5.2
µ
s
Reset
11.5
µ
s
THERMAL SHUTDOWN
Junction Temperature
Shutdown
+165
°
C
Reset from Shutdown
+150
°
C
POWER SUPPLY
Specified Operating Voltage
+24
V
Operating Voltage Range
+8
+60
V
Quiescent Current
I
O
= 0
6.5
9
mA
TEMPERATURE RANGE
Specified Range
55
+125
°
C
Storage Range
55
+125
°
C
Thermal Resistance, JC
7-Lead DDPAK, 7-Lead TO-220
3
°
C/W
Thermal Resistance, JA
7-Lead DDPAK, 7-Lead TO-220
No Heat Sink
65
°
C/W
NOTES: (1) Logic high enables output (normal operation). (2) Negative conventional current flows out of the terminals. (3) Constant dc output to PWM (pulse-width
modulated) time. (4) Maximum delay is determined by an external capacitor. Pulling the Delay Adjust pin low corresponds to an infinite (continuous) delay.
(5) Connecting the Delay Adjust pin to +5V reduces delay time to 3
µ
s. (6) V
IN
at pin 3 to percent of duty cycle at pin 6. (7) A fault results from over-temperature,
over-current, or under-current conditions. 3
®
DRV102
CONNECTION DIAGRAMS
Top Front View
TO-220, DDPAK
Supply Voltage, V
S
.............................................................................. 60V
Input Voltage .......................................................................... 0.2V to V
S
PWM Adjust Input ................................................ 0.2V to V
S
(24V max)
Delay Adjust Input ................................................ 0.2V to V
S
(24V max)
Operating Temperature Range ...................................... 55
°
C to +125
°
C
Storage Temperature Range ......................................... 55
°
C to +125
°
C
Junction Temperature .................................................................... +150
°
C
Lead Temperature (soldering, 10s)
(2)
........................................... +300
°
C
NOTES: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may de-
grade device reliability. (2) Vapor-phase or IR reflow techniques are recom-
mended for soldering the DRV102F surface-mount package. Wave soldering
is not recommended due to excessive thermal shock and shadowing of
nearby devices.
ABSOLUTE MAXIMUM RATINGS
(1)
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and
installation procedures can cause damage.
ESD damage can range from subtle performance degradation to
complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes
could cause the device not to meet its published specifications.
7-Lead
Stagger-Formed
TO-220
NOTE: Tabs are electrically connected to ground (pin 4).
1 2 3 4 5 6 7
7-Lead
DDPAK
Surface-Mount
PWM
PWM
Gnd
Out
V
S
Delay
In
1 2 3 4 5 6
Flag
Gnd
Out
V
S
Delay
In
Flag
7
PACKAGE
SPECIFIED
DRAWING
TEMPERATURE
PACKAGE
ORDERING
TRANSPORT
PRODUCT
PACKAGE
NUMBER
(1)
RANGE
MARKING
NUMBER
(2)
MEDIA
DRV102T
7-Lead Stagger-Formed TO-220
327
55
°
C to +125
°
C
DRV102T
DRV102T
Rails
DRV102F
7-Lead DDPak Surface Mount
328
55
°
C to +125
°
C
DRV102F
DRV102F
Rails
"
"
"
"
"
DRV102F/500
Tape and Reel
NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) Models with a slash (/)
are available only in Tape and Reel in the quantities indicated (e.g., /500 indicates 500 devices per reel). Ordering 500 pieces of DRV102F/500 will get a single
500-piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book.
PACKAGE/ORDERING INFORMATION 4
®
DRV102
PIN #
NAME
DESCRIPTION
Pin 1
Input
The input is compatible with standard TTL levels. The device output becomes enabled when the input voltage is driven above
the typical switching threshold, 1.7V. Below this level, the output is disabled. With no connection to the pin, the input level rises
to 3.4V. Input current is 20
µ
A when driven high and 80
µ
A with the input low. The input may be driven to the power supply (V
S
)
without damage.
Pin 2
Delay Adjust
This pin sets the duration of the initial 100% duty cycle before the output goes into PWM mode. Leaving this pin floating results
in a delay of approximately 15
µ
s, which is internally limited by parasitic capacitance. Minimum delay may be reduced to less
than 3
µ
s by tying the pin to 5V. This pin connects internally to a 3
µ
A current source from V
S
and to a 3V threshold comparator.
When the pin voltage is below 3V, the output device is 100% on. The PWM oscillator is not synchronized to the Input (pin 1),
so the first pulse may be extended by any portion of the programmed duty cycle.
Pin 3
Duty Cycle Adjust
Internally, this pin connects to the input of a comparator and a 19k resistor to ground. It is driven by a 200
µ
A current source
(PWM)
from V
S
. The voltage at this node linearly sets the duty cycle. Duty cycle can be programmed with a resistor, analog voltage,
or output of a D/A converter. The active voltage range is from 0.55V to 3.7V to facilitate the use of single-supply control
electronics. At 0.56V (or R
PWM
= 4.4k ), duty cycle is near 90%. Swing to ground should be limited to no lower than 0.1V. PWM
frequency is a constant 24kHz.
Pin 4
Ground
This pin is electrically connected to the package tab. It must be connected to