MSK4205_15 Datasheet, PDF (1/9 Pages) M.S. Kennedy Corporation – New TUB Version Replaces the Platform Package

MIL-PRF-38534 & 38535 CERTIFIED FACILITY
M.S.KENNEDY CORP.
100 VOLT 30 AMP
H-BRIDGE PWM MOTOR
DRIVER/AMPLIFIER
4205
FEATURES:
New TUB Version Replaces the Platform Package
Replaces APEX SA03 PWM Amplifier
100 Volt, 30 Amp Capability
Self-Contained Smart Lowside/Highside Drive Circuitry
Internal PWM Generation, Shoot-through Protection
Grounded Case Allows Direct Heatsinking
Available Fully Screened To MIL-PRF-38534 Class H
Contact MSK for MIL-PRF-38534 Qualification Status
DESCRIPTION:
The MSK4205 is a complete H-Bridge microcircuit intended for use in DC brushed motor control application or Class D
switchmode amplification in severe operating conditions. The MSK4205 can be used as a drop in replacement for the APEX
SA03 in applications that do not utilize the thermal limit feature. All of the drive/control circuitry for the lowside and
highside are internal to the device. The clock input stage divides the internal oscillator frequency by two, which provides the
switching frequency of 22.5KHz. An external oscillator may be used to lower the frequency or synchronize multiple ampli-
fiers. Current sensing is provided for each half of the bridge and fixed highside current limit is provided internally. Lowside
current limit is user controlled with the use of an external resistor network. An internal highside charge pump allows 100%
duty cycle. The design is packaged in a hermetic 12 pin bolt down power TUB package.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
MOTOR CONTROL
REACTIVE LOADS
PIEZO ELEMENTS
PIN-OUT INFORMATION
1 CLK IN
2 CLK OUT
3 +PWM
4 -PWM/RAMP
5 GND/CASE
6 ILIM/SHDN
7 ISENSE B
8 B OUT
9 +VS
10 +VCC
11 A OUT
12 ISENSE A
1
8548-53 Rev. H 6/14