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參數(shù)資料
| 型號(hào)： | FAN5234QSCX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Mobile-Friendly PWM/PFM Controller |
| 中文描述： | SWITCHING CONTROLLER, 690 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | QSOP-16 |
| 文件頁(yè)數(shù)： | 4/15頁(yè) |
| 文件大小： | 537K |
| 代理商： | FAN5234QSCX |
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PRODUCT SPECIFICATION
FAN5234
4
REV. 1.0.10 5/3/04
Electrical Specifications
Recommended operating conditions, unless otherwise noted.
Parameter
Power Supplies
VCC Current
Conditions
Min.
Typ.
Max.
Units
LDRV, HDRV Open, VSEN forced
above regulation point
Shut-down (EN=0)
VIN pin = input voltage source
VIN pin = GND
850
1300
μ
A
5
20
15
15
30
20
1
4.75
4.5
0.5
μ
μ
μ
μ
A
A
A
A
V
V
V
VIN Current - Sinking
VIN Current - Sourcing
VIN Current - Shut-down
UVLO Threshold
10
7
Rising VCC
Falling
Hysteresis
4.3
4.1
0.1
4.55
4.27
Oscillator
Frequency
VIN > 5V
VIN = 0V
VIN = 16V
VIN < 5V
255
510
300
600
2
1.25
0.5
125
250
345
690
KHz
KHz
V
V
V
mV/V
mV/V
Ramp Amplitude, pk–pk
Ramp Amplitude, pk–pk
Ramp Offset
Ramp / VIN Gain
Ramp / VIN Gain
Reference and Soft Start
Internal Reference Voltage
Soft Start current (I
Soft Start Complete Threshold
PWM Converter
Load Regulation
VSEN Bias Current
VOUT pin input impedance
Under-voltage Shutdown
I
SNS
Over-Current threshold
Over-voltage threshold
Output Driver
HDRV Output Resistance
VIN > 3V
1V < VIN < 3V
0.891
0.9
5
1.5
0.909
V
μ
V
SS
)
at start-up
A
I
OUT
from 0 to 3A, VIN from 2 to 24V
-1
50
40
70
115
113
+1
120
65
80
172
120
%
nA
K
%
μA
%
80
55
75
144
as % of set point. 2
R
ILIM
= 68.5K
as % of set point. 2
μ
S noise filter
. See Figure 4
μ
S noise filter
Sourcing
Sinking
Sourcing
Sinking
8
15
4
15
2.4
3.2
8
1.5
LDRV Output Resistance
PGOOD (Power Good Output) and Control pins
Lower Threshold
Upper Threshold
PGOOD Output Low
Leakage Current
Soft Start Voltage when PGOOD
Enabled
EN, FPWM Inputs
Input High
Input Low
as % of set point, 2
as % of set point, 2
I
PGOOD
= 4mA
V
PULLUP
= 5V
μ
μ
S noise filter
S noise filter
86
110
92
115
0.5
1
%
%
V
μ
V
A
1.5
2
V
V
0.8
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