AIC1630 AIC [Analog Intergrations Corporation], AIC1630 Datasheet - Page 6

• Manufacturer Part Number: AIC1630
• Description: 2-Cell, Step-Up DC/DC Converter Controller
• Manufacturer: AIC [Analog Intergrations Corporation]

PIN DESCRIPTION
AIC1630/ AIC1630-3 / AIC1630-5
PIN 1: SD
PIN 2: VIN
PIN 3: EXT
PIN 4:SGND -
PIN 5:CGND -
PIN 6:LBO
PIN 7:LBI
PIN 8:VOUT -
-
-
-
-
-
The AIC1630 goes in shutdown
mode and consumes less than
10 µ A when SD pin is pulled to
ground and it goes in normal
operating mode when the SD pin
is pulled to a positive voltage
above 100mV.
Input supply.
Push-pull drive output to drive
external power switch.
Ground connected to source of
power switch.
Ground for control circuits of the
IC. It should be separated from
SGND to avoid the interference.
Open drain output of the battery
low detector, with 45 Ω “ON
resistance” at V
low when the voltage on LBI pin
is below 1.22V.
The noninverting input of the
battery low detector, of which the
inverting
connects
reference.
The output voltage feedbacks to
the IC through this pin.
input
to
IN
1.22V
=2V. It is pulled
is
internally
voltage
AIC1630A
PIN 1: SD
PIN 2: VIN
PIN 3: EXT - Push-pull drive output to drive
PIN 4: GND - Ground.
PIN 5: FB
PIN 6: LBO - Open drain output of the battery
PIN 7: LBI
PIN 8: VOUT- The output voltage feedbacks to
- The AIC1630A goes in shutdown
- Input supply.
- Output voltage can either be
- The noninverting input of the
mode and consumes less than 10
µ A when SD pin is pulled to
ground and it goes in normal
operating mode when the SD pin
is pulled to a positive voltage
above 100mV.
external power switch.
internally
grounding FB pin, or be externally
set to an arbitrary voltage by
applying to FB pin the divider
voltage of two divider resistors.
V
following equation:
where R1 = Resistor
between FB pin and VOUT pin.
R2= Resistor connected between
V
low
resistance” at V
low when the voltage on LBI pin is
below 1.22V.
battery low detector, of which the
inverting
connects
reference.
the IC through this pin. If output
voltage was externally set, the
VOUT pin can be tied to any low
impedance node
between the external power switch
threshold and 7V
R2
R1
OUT
OUT
=
=Output voltage to be set.
FB pin and ground.
detector,
0.617
V
voltage is given by the
OUT
set
input
−
to
1
IN
AIC1630
with
to
=2V. It is pulled
1.22V
is
with
5
45Ω
connected
internally
volt
voltage
voltage
“ON
6
by