MICROSEMI SG3635P

SG1635/SG3635
2A, HALF-BRIDGE DRIVER
DESCRIPTION
FEATURES
The SG1635 is a monolithic integrated circuit designed to interface
low-level logic signals with high-current, inductive, or capacitive
loads. This device is particularly adept at high-speed pulse width
modulation for motor drives or Class D audio amplifiers, and when
used in pairs, they can provide full bridge drive for bi-directional
control.
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With TTL-compatible units, this device will either source or sink up
to 5A of peak current with interlock protection to insure that source
and sink cannot be on simultaneously. Additional protection is
provided by thermal shutdown of the source output if the chip
temperature rises above 160°C. High speed internal commutating
diodes are also included.
Source or sink 5A peak
Half-bridge with internal diodes
TTL input compatibility
Either dual- or tri-state output
Direct PWM motor drive from microprocessor
Built-in thermal protection
SG3635P replaces UDN2935Z
HIGH RELIABILITY FEATURES
- SG1635
♦ Available to MIL-STD-883
♦ LMI level "S" processing available
BLOCK DIAGRAM - SG1635/3635
TRUTH TABLE
Enable
0
0
1
1
Pulse
0
1
0
1
Output
High
High
Low
Off - High Z
1 = Open or High
LINFINITY
6/91 Rev 1.1 5/94
Copyright  1994
1
Microelectronics Inc.
11861 Western Avenue ∞ Garden Grove, CA 92841
(714) 898-8121 ∞ FAX: (714) 893-2570
SG1635/SG3635
ABSOLUTE MAXIMUM RATINGS (Note 1)
Supply Voltage (VS)
SG1635/SG3635 ............................................................. 40V
Input Voltage
Enable and Pulse .............................................................. 7V
Source/Sink Output Current
Contiuous ........................................................................... 3A
Peak ................................................................................... 5A
Operating Junction Temperature
Hermetic (R - Package) ............................................... 150°C
Plastic (P - Package) ................................................... 150°C
Storage Temperature Range ............................ -65°C to 150°C
Lead Temperature (Soldering, 10 Seconds) .................. 300°C
Note 1. Values beyond which damage may occur.
THERMAL DATA
R Package:
Thermal Resistance-Junction to Case, θ JC ................. 5.0°C/W
Thermal Resistance-Junction to Ambient, θ JA .............. 40°C/W
P Package:
Thermal Resistance-Junction to Case, θ JT ................ 4.0°C/W*
Thermal Resistance-Junction to Ambient, θ JA ............. 55°C/W
*
Note A. Junction Temperature Calculation: TJ = TA + (PD x θJA).
Note B. The above numbers for θ JC are maximums for the limiting
thermal resistance of the package in a standard mounting configuration. The θ JA numbers are meant to be
guidelines for the thermal performance of the device/pcboard system. All of the above assume no ambient
airflow.
= θ JT (Junction to Tab)
RECOMMENDED OPERATING CONDITIONS (Note 2)
Supply Voltage (VS)
SG1635/SG3635 .................................................... 8V to 35V
Source/Sink Output Current
Continuous ......................................................................... 2A
Peak ................................................................................... 3A
Operating Ambient Temperature Range
SG1635 ........................................................... -55°C to 125°C
SG3635 ................................................................ 0°C to 70°C
Note 2. Range over which the device is functional.
ELECTRICAL CHARACTERISTICS
SG1635 and SG3635
(Unless otherwise specified, these specfiications apply over the operating ambient temperatures for SG1635 with -55°C ≤ TA ≤ 125°C, SG3635 with
0°C ≤ TA ≤ 70°C, and +VS = 24V. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient
temperature.)
Parameter
Static Characteristics
Logic 1 Input Voltage
Logic 0 Input Voltage
Input High Current
Input Low Current
Output Leakage
Source Saturation Voltage
Sink Saturation Voltage
Diode Forward Voltage
Supply Current
Test Conditions
2.0
VPULSE = VENABLE = 4.5V
VPULSE = VENABLE = 0V
VPULSE = VENABLE = 2.0V
VOUT = 24V
VOUT = 0V
VPULSE = 2.0V, VENABLE = 0.8V, IOUT = -2A
VPULSE = 0.8V, VENABLE = 2.0V, IOUT = 2A
IDIODE = ±2A
VS = 35V
VPULSE = 2.0V, VENABLE = 0.8V
VPULSE = 0.8V, VENABLE = 2.0V
2.0
2.0
2.0
LINFINITY
6/91 Rev 1.1 2/94
Copyright  1994
SG1635/SG3635
Min. Typ. Max.
2
Units
0.8
200
-3.2
V
V
µA
mA
500
40
3.0
3.0
3.0
mA
mA
V
V
V
25
70
mA
mA
Microelectronics Inc.
11861 Western Avenue ∞ Garden Grove, CA 92841
(714) 898-8121 ∞ FAX: (714) 893-2570
SG1635/SG3635
ELECTRICAL CHARACTERISTICS (continued)
Parameter
Dynamic Characteristics (Notes 3 and 4)
Pulse Propagation Delay
Pulse Transition Time
Enable Propagation Delay
Enable Transition Time
Definition
Turn-On Delay (TPDHL)
Turn-Off Delay (TPDLH)
Turn-On (TPTHL)
Turn-Off (TPTLH)
Turn-On Delay (TEDLH)
Turn-Off Delay (TEDHL)
Turn-On (TETLH)
Turn-Off (TETHL)
SG1635/3635
Min. Typ. Max.
Units
50
100
200
200
200
100
100
100
ns
ns
ns
ns
ns
ns
ns
ns
Note 3. TJ = 25°C.
Note 4. Although these parameters are guaranteed, they are not tested in production.
LINFINITY
6/91 Rev 1.1 2/94
Copyright  1994
3
Microelectronics Inc.
11861 Western Avenue ∞ Garden Grove, CA 92841
(714) 898-8121 ∞ FAX: (714) 893-2570
SG1635/SG3635
AC TEST CIRCUIT AND SWITCHING TIME WAVEFORMS - FIGURE 1
APPLICATION INFORMATION
TYPICAL MOTOR DRIVE APPLICATION
Two SG1635's form a full bridge motor drive
circuit with the appropriate Enable Input, determining motor direction, and a PWM signal into the
Pulse Inputs, determining speed. Because of the
internal Enable interlock, both Pulse Inputs may
be connected together to a single-ended PWM
signal.
LINFINITY
6/91 Rev 1.1 2/94
Copyright  1994
4
Microelectronics Inc.
11861 Western Avenue ∞ Garden Grove, CA 92841
(714) 898-8121 ∞ FAX: (714) 893-2570
SG1635/SG3635
CONNECTION DIAGRAMS/ORDERING INFORMATION (See Notes Below)
Package
5-PIN TO-66 METAL CAN
R - PACKAGE
Part No.
SG1635R/883B
SG1635R
SG3635R
Ambient
Temperature Range
Connection Diagram
-55°C to 125°C
-55°C to 125°C
0°C to 70°C
OUTPUT
+VS
ENABLE
3
4
2
5
1
GND
PULSE
CASE IS GROUND
Note: Case and tab are
internally connected to
substrate ground.
5-PIN TO-220 PLASTIC
P - PACKAGE
SG3635P
0°C to 70°C
GND
5
4
3
2
1
PULSE
OUTPUT
GND
ENABLE
V+
Case + Tab are internally
connected
Notes:
1. Contact factory for JAN and DESC part availability.
2. All parts are viewed from the top.
LINFINITY
6/91 Rev 1.1 2/94
Copyright  1994
5
Microelectronics Inc.
11861 Western Avenue ∞ Garden Grove, CA 92841
(714) 898-8121 ∞ FAX: (714) 893-2570