an8011s Panasonic Corporation of North America, an8011s Datasheet - Page 2

• Manufacturer Part Number: an8011s
• Description: 2-channel Step-down, Step-up, Or Inverting Use Dc-dc Converter Control Ic
• Manufacturer: Panasonic Corporation of North America

AN8011S
2
Pin No.
Pin Descriptions
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Symbol
On/Off
DTC 2
DTC 1
F/B 2
Out 2
Out 1
F/B 1
Latch
GND
IN 2
IN 1
V
V
IN
CT
RT
REF
CC
Pin for connecting the oscillation frequency setting capacitor for triangular oscillation
terminal and GND.
Resistor connection pin for setting the oscillation frequency of triangular oscillation
pin and GND
Output pin for channel 2 error amplifier. Gain setting or phase compensation is per-
formed by connecting resistor or capacitor between the pin and IN 2. It is also connected
to PWM short-circuit protecion.
Pin for setting dead-time period of channel 2. The dead-time of channel 2 is set by
tor in parallel with the external resistor. In addition, only channel 2 output can be turned
off by decreasing the pin voltage to below 0.12 V. (short-circuit protection function stop
circuit)
Pin for setting dead-time period of channel 1. The dead-time period of channel 1 is set
by connecting external resistor. Soft start function can be also given by connecting capacitor
in parallel with the external resistor. In addition, only channel 1 output can be turned off
by decreasing the pin voltage to below 0.12 V. (short-circuit protection function stop
circuit)
Output pin for channel 1 error amplifier. Gain setting or phase compensation is per
nected to PWM short-circuit protection.
Pin for connecting the time constant setting capacitor for timer latch type short-circuit
a capacitor between this terminal and GND.
Internal reference voltage output pin (2.5 V(allowance: 3%)). If a load of 20 mA typical
operation stops.
circuit. Frequecy of triangular oscillation is set by connecting a capacitor between this
circuit. Frequecy of triangular oscillation is set by connecting resistance between the
"On/Off" pin for turning on/off IC. "Low" stops IC (output off) and "High" operates IC.
Inverted input pin for channel 2 error amplifier
connecting external resistor. Soft start function can be also given by connecting capaci-
Channel 2 open-collector type output pin. I
Grounding pin of signal system.
Power supply voltage application pin. It detects start voltage and stop voltages
Channel 1 open-collector type output pin. I
formed by connecting resistor or capacitor between the pin and IN 1. It is also con
Inverted input pin for channel 1 error amplifier.
Pin for noninverted input of channel 1error amplifier.
protection circuit. The time constant for short-circuit protection is set by connecting
or more is applied, the overcurrent protection operates to reduce V
Description
O
O
100 mA maximum
100 mA maximum
Voltage Regulators
REF
and switching