Fujitsu MB3887 manual Pin Description, Pin No, Symbol, Descriptions

MB3887

■PIN DESCRIPTION

Pin No.	Symbol	I/O	Descriptions
1	−INC2	I	Current detection amplifier (Current Amp2) input terminal.
2	OUTC2	O	Current detection amplifier (Current Amp2) output terminal.
3	+INE2	I	Error amplifier (Error Amp2) non-inverted input terminal.
4	−INE2	I	Error amplifier (Error Amp2) inverted input terminal.
5	FB2	O	Error amplifier (Error Amp2) output terminal.
6	VREF	O	Reference voltage output terminal.
7	FB1	O	Error amplifier (Error Amp1) output terminal.
8	−INE1	I	Error amplifier (Error Amp1) inverted input terminal
9	+INE1	I	Error amplifier (Error Amp1) non-inverted input terminal.
10	OUTC1	O	Current detection amplifier (Current Amp1) output terminal.
			With IC in standby mode, this terminal is set to “Hi-Z” to prevent loss
11	OUTD	O	of current through output voltage setting resistance.
			Set CTL terminal to “H” level to output “L” level.
12	−INC1	I	Current detection amplifier (Current Amp1) input terminal.
13	+INC1	I	Current detection amplifier (Current Amp1) input terminal.
			Power supply control terminal.
14	CTL	I	Setting the CTL terminal at “L” level places the IC in the standby
			mode.
15	FB3	O	Error amplifier (Error Amp3) output terminal.
16	−INE3	I	Error amplifier (Error Amp3) inverted input terminal.
17	RT		Triangular-wave oscillation frequency setting resistor connection
			terminal.
18	VCC		Power supply terminal for reference power supply and control circuit.
19	VH	O	Power supply terminal for FET drive circuit (VH = VCC − 6 V) .
20	OUT	O	External FET gate drive terminal.
21	VCC (O)		Output circuit power supply terminal.
22	CS		Soft-start capacitor connection terminal.
23	GND		Ground terminal.
24	+INC2	I	Current detection amplifier (Current Amp2) input terminal.

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