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EK01

EVALUATION KIT FOR SA01 PIN-OUT

Apex Microtechnology

EK01 Datasheet PDF : 4 Pages

1 2 3 4

EK01

EVALUATION KIT

FOR SA01 PIN-OUT

FIGURE 2. PCB SCHEMATIC.

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TYPICAL COMPONENT FUNCTIONS

Provides -IN bias from the Reference voltage.

Sets DC scaling for external feedback such as tachometers, position sensors or current sensors.

With R4 sets DC operating point of +IN, with R13 and R15 sets gain of voltage feedback circuit.

With R3 sets DC operating point of +IN.

R10

R11

R12, 13, 15, 16

R14

Input scaling of the control signal.

With C6 sets the corner frequency of the integrator.

With C3 & C4 forms a low pass ﬁlter for the external feedback loop. Often used with tachometers.

With C2 forms a low pass ﬁlter for the current limit circuit.

Current sense. Often is a piece of resistance wire.

With R8 divides shutdown signal voltage feeding SHDN/FILTER pin.

With C5 sets corner frequency for external feedback loop.

Provides voltage feedback for a voltage controlled output.

Helps set gain or scale input voltage levels.

R17

C3, 4

With C12 provides low pass ﬁltering of +IN signal.

Power supply bypass.

With R8 form a low pass ﬁlter for the current limit circuit, also ﬁlters the SHDN signal.

With R7 forms a low pass ﬁlter for the external feed back loop. Often used with tachometers.

With R11 sets corner frequency for external feedback loop.

With R6 sets the corner frequency of the integrator.

Power supply bypass, must have very low ESR in MHz range.

Filters reference or feedback voltage at +IN.

Bypass for the reference voltage.

C10, 11

C12

C13

D1 – D4

D5 – D7

With R15 and R16 provides low pass ﬁltering of voltage feedback.

With R17 provides low pass ﬁltering of +IN signal.

Provides AC coupling of +IN signal.

Optional ﬂyback diodes.

Input protection zener diodes.

APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739

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