S1F75510 Epson Electronics America, Inc., S1F75510 Datasheet - Page 5

• Manufacturer Part Number: S1F75510
• Description: Charge-pump Dc/dc Converter & Voltage Regulator
• Manufacturer: Epson Electronics America, Inc.

Rev. 1.1
POFFX
OSC1
OSC2
CL
MODE
OSCSEL
PIN DESCRIPTION
(1) CR oscillation circuit · Mode changeover circuit · Timing signal forming circuit · Electric charge discharging
Pin name
circuit
I/O
O
I
I
I
I
I
Pin No.
15
16
17
14
13
18
This is the shut down pin. Set it to the V
operation. When this signal is set to the V
the circuits will be interrupted bringing the IC into the shut down
state. The electric charge discharging circuit discharges the electric
charge remaining in the V
This is the CR oscillation circuit gate input pin. This is the pin to
connect the oscillation resistor. Fix it to the V
built-in oscillation circuit will not be used.
This is the CR oscillation circuit drain input pin. Connect the osci-
llation resistor between this pin and the OSC1 pin.
This should be OFF in use of the built-in oscillation circuit.
This is the boosting external clock signal input pin. Input the charge
pump clock signals under the blank mode into this pin from the
external.
Fix it to the V
This is the mode changeover pin.
This is the pin for selection between the internal clock and exter-
nal clock signals.
HIGH(V
LOW(V
MODE
SS
DD
) HIGH(V
) HIGH(V
SS
LOW(V
LOW(V
OSCSEL
level in case the external clock will not be used.
SS
SS
DD
DD
) The boosting clock signals are being
) Blank mode (external oscillation)
) Normal mode
) Blank mode (internal oscillation)
OUT3
generated through the internal
oscillation.
The built-in oscillation circuit will ope-
rate and the voltage stabilizing circuit
will operate.
The boosting clock signals are being
generated through the internal
oscillation.
The built-in oscillation circuit will
operate.
The boosting clock signals are being
generated by the external clock.
The built-in oscillation circuit will be
interrupted.
Function
pin and V
Function
OUT4
DD
SS
level while the IC is in
level, operations of all
SS
pin to the V
S1F75510
level in case the
SS
level.
5