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부품번호 | AA18375AP 기능 |
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기능 | Switching Regulator Controller | ||
제조업체 | Agamem Microelectronic | ||
로고 | |||
Agamem Microelectronics Inc.
www.DataSheet4U.com
PRELIMINARY
AA18375AP
Switching Regulator Controller
OVERVIEW
The AA18375AP is a two-channel PWM DC-DC converter control IC that features low-voltage operation.
This IC can obtain the step-up, step-down and inverting voltages with a small number of external
components. Because the IC is compactly packaged, it is best suited for use as a power supply in
portable equipment.
FEATURES
• Wide supply voltage range: 3.6 V to 15 V
• Low current consumption: 1.3 mA typical
• Control in a wide output frequency range is possible (1 kHz to 500 kHz).
• Timer latch, short-circuit protection circuit is built in.
• Circuit to prevent malfunction during low input voltage is built in.
• Built-in reference voltage (1.28V) output pin.
• Dead time period is adjustable over the whole range of duty ratio.
• Synchronization operation is possible.
PIN Configuration
(TOP VIEW)
CT 1
RT 2
+IN1 3
-IN1 4
FB1 5
D.T.C.1 6
OUT1 7
GND 8
16 VREF
15 SCP
14 +IN2
13 -IN2
12 FB2
11 D.T.C.2
10 OUT2
9 VCC
APPLICATIONS
• LCD Displays
• PDAs
• Digital Still Cameras
• Hand-held and portable instruments
©Copyright Agamem Microelectronics Inc. 1 www.agamem.com.tw 2006/6/27
Agamem Microelectronics Inc.
www.DataSheet4U.com
PRELIMINARY
AA18375AP
Switching Regulator Controller
ELECTRICAL CHARACTERISTICS
Parameter
Output Voltage
condition
IOR = − 1 mA
(Ta = +25 °C, VCC = 6 V)
Value
Symbol
Min
Typ Max
VREF
1.26
1.28 1.30
Output Temp. Stability Ta = − 30 ° C to +85 ° C VRTC –2 ±0.2 2
Reference Input Stability
Section
Load Stability
VCC = 3.6 V to 15 V
IOR = − 0.1 mA to − 1 mA
Line
Load
–
–
2 10
1 7.5
Under
Voltage
Lockout
Protection
Section
Short Circuit Output
Current
Threshold Voltage
Hysteresis Width
Reset Voltage (VCC)
Input Threshold Voltage
VREF = 0 V
IOR = − 0.1 mA
IOR = − 0.1 mA
IOR = − 0.1 mA
–
–
IOS
VtH
VtL
VHYS
VR
VtPC
–
–
–
80
1.5
0.60
–30 –10
2.72 –
2.60 –
120 –
1.9 –
0.65 0.7
Protection
Circuit
Section
Input Stand by Voltage
Input Latch Voltage
Input Source Current
No pull up
No pull up
–
VSTB
VI
Ibpc
–
–
–1.4
50
50
–1.0
100
100
–0.6
Comparator Threshold
Voltage
Pin 5, Pin 12
VtC – 1.1 –
Triangular
Waveform
Oscillator
Section
Oscillator Frequency
Frequency Deviation
CT = 330 pF, RT = 15 kΩ
CT = 330 pF, RT = 15 kΩ
Frequency Stability (VCC) VCC = 3.6 V to 15 V
Frequency Stability (Ta) Ta = − 30 ° C to +85 ° C
fOSC
fdev
fdV
fdT
– 200 –
– 10 –
– 1–
–4 – 4
Input Threshold Voltage Duty Cycle = 0 %
Dead-Time (fOSC = 10 kHz)
Control
Section
Input Bias Current
Latch Mode Source
Current
Duty Cycle = 100 %
–
Vdt = 0.7 V
Vt0
Vt100
Ibdt
Idt
–
1.0
VREF
−0.15
0.2 0.4 –
– –0.2 –1
– –150 –80
Unit
V
%
mV
mV
mA
V
V
mV
V
V
mV
mV
µA
V
kHz
%
%
%
V
V
µA
µA
Latch Input Voltage
Error Amp. Input Offset Voltage
Section
Input Offset Current
Input Bias Current
Common Mode Input
Voltage Range
Voltage Gain
Frequency Band Width
Idt = − 40 µ A
VO = 1.6 V
VO = 1.6 V
VO = 1.6 V
VCC = 3.6 V to 15 V
AV = − 3 dB
Vdt VREF−0.1
–
–V
VIO –10 – +10 mV
IIO –100 – +100 nA
IB –500 –100 – nA
VICR
–0.2
– +1.45 V
AV 84 120 – V/V
BW –
3 – MHz
©Copyright Agamem Microelectronics Inc. 4 www.agamem.com.tw 2006/6/27
4페이지 Agamem Microelectronics Inc.
www.DataSheet4U.com
PRELIMINARY
AA18375AP
Switching Regulator Controller
©Copyright Agamem Microelectronics Inc. 7 www.agamem.com.tw 2006/6/27
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부품번호 | 상세설명 및 기능 | 제조사 |
AA18375AP | Switching Regulator Controller | Agamem Microelectronic |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |