參數(shù)資料
型號(hào)： AN8049FHN
廠商： PANASONIC CORP
元件分類： 模擬信號(hào)調(diào)理
英文描述： 1.8-volt 3-channel step-up, step-down, and polarity inverting DC-DC converter control IC
中文描述： SPECIALTY ANALOG CIRCUIT, QCC24
封裝： 4 X 5 MM, PLASTIC, QFN-24
文件頁數(shù)： 7/23頁
文件大?。?/td> 170K
代理商： AN8049FHN
Voltage Regulators
AN8049FHN
7
Pin No.
Equivalent circuit
Description
I/O
4
CTL2:
Controls the on/off state of channel 2.
A delay can be provided in the power
supply turn-on start time by connecting
a capacitor between this pin and ground.
t
DLY2
=
1.26 (V)
×
C
CTL2
(
μ
F)/1.1 (
μ
A) (s)
This pin can also be used to control the
on/off state with an external signal.
In that case, the allowable input voltage
range is from 0 V to V
CC
. Note that
during U.V.L.O. and timer latch
operation, this pin is connected to
ground through a 20 k
resistor.
I
5
CTL1:
Controls the on/off state of channel 1.
A delay can be provided in the power
supply turn-on start time by connecting
a capacitor between this pin and ground.
t
DLY1
=
1.26 (V)
×
C
CTL1
(
μ
F)/1.1 (
μ
A) (s)
This pin can also be used to control the
on/off state with an external signal.
In that case, the allowable input voltage
range is from 0 V to V
CC
. Note that
during U.V.L.O. and timer latch
operation, this pin is connected to
ground through a 20 k
resistor.
I
6
Off:
Controls the on/off state.
When the input is high: normal
operation
(V
OFF
> 1.2 V)
When the input is low: standby mode
V
OFF
< 0.6 V)
In standby mode, the total current
consumption is held to under 1
μ
A.
I
7
V
REF
:
Outputs the internal reference voltage.
The reference voltage is 1.26 V
(allowance:
±
1%) when V
CC
is 2.4 V
and I
REF
is
0.1 mA. Insert a capacitor
of at least 0.1
μ
F between V
REF
and
ground for phase compensation.
O
1.26 V
V
CC
20 k
1.1
μ
A
High
channel 2 operation
is turned off.
4
I
Terminal Equivalent Circuit (continued)
1.26 V
V
CC
20 k
1.1
μ
A
High
channel 1 operation
is turned off.
5
100 k
Start and stop of
internal circuits.
6
V
CC
7
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AN8049SH 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:1.8-volt 3-channel step-up, step-down, and polarity inverting DC-DC converter control IC
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AN804D6 制造商: 功能描述:
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