參數(shù)資料
型號(hào): AP2004S
英文描述: PWM Buck Controller
中文描述: PWM降壓控制器
文件頁數(shù): 3/8頁
文件大?。?/td> 175K
代理商: AP2004S
AP2004
PWM Buck Controller
Recommended Operating Conditions
Symbol
Anachip Corp.
www.anachip.com.tw Rev. 0.4 Apr 6, 2004
3/8
Parameter
Min.
Max.
Unit
V
CC
V
I
V
O
I
FB
R
F
C
T
F
OSC
T
OP
Supply voltage
3.6
27
V
Amplifier input voltage
1.05
1.45
V
Collector output voltage
Vcc-1.5
V
Current into feedback terminal
45
μA
Feedback resistor
100
k
Timing capacitor
100
6800
pF
Oscillator frequency
10
300
KHz
Operating free-air temperature
-20
85
oC
Electrical Characteristics
(T
A
=25oC, V
CC
=6V, f=200 Khz)
Reference (REF)
Symbol
Parameter
Comp connect to FB
V
REF
Output voltage change with
temperature
Under voltage lockout (UVLO)
Symbol
Parameter
V
UT
Upper threshold voltage (V
CC
)
V
LWT
Lower threshold voltage (V
CC
)
V
HT
Hysteresis (V
CC
)
Short-circuit protection (SCP) control
Symbol
Parameter
V
IT
Input threshold voltage
V
STB
Standby voltage
V
LT
Latched input voltage
I
SCP
Input (source) current
Comparator threshold voltage
(COMP)
Oscillator (OSC)
Symbol
Parameter
F
OSC
Frequency
Standard deviation of frequency
F
OSC
Frequency change with voltage
Conditions
Min.
1.225
Typ.
1.25
-0.1
-0.2
Max.
1.275
±1
±1
Unit
V
%
%
T
A
= -20oC ~ 25oC
T
A
= 25oC ~ 85oC
Conditions
Min.
Typ.
2.9
2.4
500
Max.
Unit
V
V
mV
I
O(REF)
= 0.1mA
T
A
= 25oC
Conditions
T
A
= 25oC
No pull up
No pull up
V
I
= 0.7V, T
A
= 25oC
Min.
0.60
100
-10
Typ.
0.67
130
50
-15
Max.
0.75
160
100
-20
Unit
V
mV
mV
μA
V
CT
1.5
V
Conditions
C
T
=270 pF
C
T
=270 pF
V
CC
=3.6V ~ 20V
Min.
Typ.
200
10
1
Max.
Unit
KHz
%
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