MSK4203_15 Datasheet, PDF (3/5 Pages) M.S. Kennedy Corporation – 75 Volt, 10 Amp Capability

ABSOLUTE MAXIMUM RATINGS ¹
V+ High Voltage Supply ²
75V
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VCC Logic Supply
16V
I Continuous Output Current _10A OUT
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IPK Peak Output Current
23A
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VOUT Output Voltage Range
GND-2V min. to V+ max.
IOUT
VIN
(+5V Regulator)
500mA
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Input Voltage V ○
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CC
VL
Logic Input Voltage (HEN,DIS)
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○ OV to VCC
NOTE:
TST Storage Temperature Range ○ ○ ○ -65°C to +150°C
TLD Lead Temperature Range
300°C ^○
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(10 Seconds)
TC Case Operating Temperature
MSK4203H/E ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ -55°C to +125°C
MSK4203 ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ -40°C to +125°C
TJ Junction Temperature
+175°C
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θJc Thermal Resistance
(Output FETS @ 125°C) ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ 3.9°C/W
(+5Vout Regulator @ 125°C)
18°C/W
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1 Continuous operation at or above absolute maximum ratings may adversely
effect the device performance and /or life cycle.
2 When applying power to the device, apply the low voltage followed by the high voltage or alternatively, apply both at the
same time. Do not apply high voltage without low voltage present.
APPLICATION NOTES
MSK 4203 PIN DESCRIPTIONS
VCC - Is the low voltage supply for powering internal
logic and drivers for the lowside and highside MOSFETS.
The supplies for the highside drivers are derived from this
voltage. The +5V regulator also gets its supply voltage
from this pin. Optimum operation occurs with VCC set at
12V.
V+ - Is the high voltage H-bridge supply. The MOSFETS
obtain the drive current from this supply pin. The voltage
on this pin is limited by the drive IC. The MOSFETS are
rated at 100 volts. Proper bypassing to GND with suffi-
cient capacitance to suppress any voltage transients, and
ensure removal of any drooping during switching, should
be done as close to the pins on the hybrid as possible.
OUTPUT A - Is the output pin for one half of the bridge.
Increasing the input voltage causes increased duty cycles
at this output.
OUTPUT B - Is the output pin for the other half of the
bridge. Decreasing the input voltage causes increased
duty cycles at this output.
RSENSE A - Is the connection for the bottom of the A half
bridge. This can have a sense resistor connected to the
V+ return ground for current limit sensing, or can be con-
nected directly to ground. The maximum voltage on this
pin is ±2 volts with respect to GND.
RSENSE B - Is the connection for the bottom of the B half
bridge. This can have a sense resistor connected to the
V+ return ground for current limit sensing, or can be con-
nected directly to ground. The maximum voltage on this
pin is ±2 volts with respect to GND.
GND - Is the return connection for the input logic and
Vcc.
INPUT - Is an analog input for controlling the PWM pulse
width of the bridge. A voltage higher than 6V will pro-
duce greater than 50% duty cycle pulses out of OUTPUT
A. A voltage lower than 6V will produce greater than
50% duty cycle pulses out of OUTPUT B.
DIS - Is the connection for disabling all 4 output switches.
DIS high overrides all other inputs. When taken low, ev-
erything functions normally. An internal pullup to Vcc will
keep DIS high if left unconnected. This pin should be
grounded if not used.
HEN - Is the connection for enabling the high side output
switches. When taken low, HEN overrides other inputs
and the high side switches remain off. When HEN is high,
everything functions normally. An internal pullup to Vcc
will keep HEN high if left unconnected.
+5V OUT- Is the output of the internal linear regulator.
This pin should be bypassed to GND using a 4.7µF tanta-
lum capacitor and a 0.1µF ceramic capacitor . This pin
can supply up to 500mA of output current for powering
other external circuitry, depending on case temperature
and input voltage.
3
Rev. C 8/09