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参数资料
| 型号： | PJ3800CS |
| 元件分类： | 稳压器 |
| 英文描述： | 0.05 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | SOP-8 |
| 文件页数： | 3/8页 |
| 文件大小： | 330K |
| 代理商： | PJ3800CS |
PJ3800
Low Voltage Switching Regulator Controller
3-8
2003/04.rev.A
Value
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Reset voltage
V
—
0.9
V
Circuit to prevent
malfunction at low
input voltage (U.V.L.O.) Threshold voltage
VTH
—
1.1
1.3
1.5
V
Charging current
ICS
VSCP = 0 V
-0.5
-1.0
-0.7
μ
A
Soft start
Voltage at soft start completion
VtS
—
0.7
0.8
0.9
V
Charging current
ICPC
VSCP = 0 V
-1.5
-1.0
-0.7
μ
A
Short circuit
detection (S.C.P.)
Threshold voltage
VtPC
—
0.7
0.8
0.9
V
Oscillation frequency
fOCS
RT=3.0kΩ, CT = 270 pF
400
500
600
kHz
Frequency input stability
fdV
VCC = 2 V to 15 V
—
2
10
%
Saw tooth wave
oscillator (OSC)
Frequency variation with
temperature
fdT
Ta =-20℃ to +85℃
—
5
—
%
Input threshold voltage
VT
VFB = 450 mV
480
500
520
mV
VT input stability
VTdV
VCC = 2 V to 15 V
—
5
20
mV
VT variation with temperature
VTdT
Ta =-20℃ to +85℃
—
1
—
%
Input bias current
IB
VIN = 0 V
-1.0
-0.2
1.0
μ
A
Voltage gain
AV
—
70
100
145
V/V
Frequency bandwidth
BW
AV = 0 dB
—
6
—
MHz
VOM+
0.78
0.87
—
V
Maximum output
voltage range
VOM-
—
0.05
0.2
V
Output source current
IOM+
—
-40
-24
μ
A
Error amplifier
Output sink current
IOM-
VFB = 0.45 V
24
40
—
μ
A
Idle period
adjustment section
Maximum duty cycle
tDUTY
RT=3.0kΩ,CT =270pF
VFB =0.8V
65
75
85
%
VOH1
RB = 390ΩIO =-15mA
1.0
1.2
—
V
VOH2
RB=750Ω,VCC=1.8V
IO = -10mA
0.8
1
—
V
VOL1
RB = 390Ω,IO=15mA
—
0.1
0.2
V
Output voltage
VOL2
RB = 750Ω VCC=1.8V
IO = 10mA
—
0.1
0.2
V
Output source current
IO+
RB = 390Ω VO = 0.9V
—
-30
-20
mA
Output sink current
IO-
RB = 390Ω VO = 0.3V
30
60
—
mA
Output section
Pull down resistance
RO
—
20
30
40
k
Pin voltage
VBR
RB = 390Ω
0.2
0.3
0.4
V
Input off condition
IOFF
-20
—
0
μ
A
Input on condition
ION
—
-45
μ
A
Output current
setting section/
Control section
Pin current range
IBR
—
-1.8
—
-0.1
mA
Stand-by current
ICCS
BR/CTL pin open or VCC
—
1
μ
A
Entire device
Average supply current
t
ICC
RB = 390Ω
—
5.5
9.3
mA
ELECTRICAL CHARACTERISTICS (VCC = +2 V, Ta = +25 °C)
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