Operation - Linear Technology DC102 Demo Manual

PA S LIST RT
REFERENCE
DESIGNATOR QUANTITY
C1 1
C2 1
C3 to C8 6
C9 1
C10 1
C11 1
D1 to D3 3
D5 1
L1 1
Q1 to Q4 4
R1 to R7 7
T1 1
U1 1
QUICK START GUIDE
Demonstration board 102 is easily set up for evaluation
of the LT1336 IC. Please follow the procedure below for
error-free operation.
• Connect the positive lead of a low power supply to V
(E3) and the negative lead to GND (E7). The voltage
range of this supply must be between 10V – 15V.
• Connect the positive lead of a high power supply to HV
(E1) and the negative lead to GND (E7). The recom-
mended maximum operating voltage is 50V. The
capacitors, the MOSFETs and the IC are rated at 60V
absolute maximum.
U

OPERATION

A general purpose half-bridge is implemented using the
LT1336. Figure 1 is the schematic for this demonstration
board. The half-bridge can be used as a building block for
a number of different applications, including synchronous
switching regulators, motor control and class-D amplifi-
ers. By adding the appropriate controller IC in the
prototyping space, a complete system solution can be
created.
PART NUMBER DESCRIPTION
25SC10M 10µF 25V 20% Electrolytic Capacitor
25SC1M 1µF 25V 20% Electrolytic Capacitor
63MV330CZ 330µF 63V Aluminum Capacitor
FKC02 1000pF 25V 10% Mylar Capacitor
25SC10M Option Capacitor
MKS2 0.1µF 63V 5% Mylar Capacitor
1N4148 Diode
1N5819 Diode
RCR-664D-221KC 0.99Ω 0.30A Inductor (Optional)
MTP50N06V 50A 60V TO-220 MOSFET
1/4W 5% Resistor
CTX100-1P Transformer
LT1336 IC
DEMO MANUAL DC102
50V N-CHANNEL HALF BRIDGE
• Connect the driving signals into INTOP (E5) and
INBOTTOM (E6). Taking INTOP high and INBOTTOM
low turns the top MOSFETs on and the bottom
MOSFETs off. Taking INTOP low and INBOTTOM high
IN
reverses these states. When both inputs are either
high or low, all the MOSFETs are off. These inputs are
TTL/CMOS compatible and can withstand input volt-
ages as high as V
• Connect the load between OUT (E2) and GND (E7).
This demonstration unit is intended for the evaluation of
the LT1336 half-bridge driver and was not designed for
any other purpose.
To power this demo board, connect a low power 10V to
15V supply to V (E3) and a high power supply, up to 50V
IN
to HV (E1). To evaluate the LT1336 driving the half-bridge,
connect two complementary signals from a function
VENDOR
Sanyo (619) 661-6835
Sanyo (619) 661-6835
Sanyo (619) 661-6835
WIMA (914) 347-2474
Sanyo (619) 661-6835
WIMA (914) 347-2474
Philips (800) 774-4547
Motorola (602) 244-3576
Sumida (847) 956-0666
Motorola (602) 244-3576
Any
Coiltronics (407) 241-7876
LTC (408) 432-1900
.
IN
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