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参数资料
| 型号： | GSC3842 |
| 厂商： | GTM CORPORATION |
| 英文描述： | HIGH PERFORMANCE CURRENT MODE CONTROLERS |
| 中文描述： | 高性能电流模式CONTROLERS |
| 文件页数： | 2/9页 |
| 文件大小： | 1230K |
| 代理商： | GSC3842 |
GSC3842
Page: 2/9
ISSUED DATE :2003/05/20
REVISED DATE :2005/10/05C
Power Dissipation at Thermal
characteristics
PD
P JA
702
178
mW
/W
:
Storage Temperature Range
Tstg
-65 to 150
:
Operating Junction Temperature
TJ
+150
:
Operating ambient Temperature
TA
0~+70
:
Electrical Characteristics (0 TA 70 ,
:
: Vcc=15V [note 2], RT=10k, CT=3.3nF, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Reference Section
Output Voltage
VREF
Tj=25 ,Io=1mA
:
4.90
5
5.1
V
Line Regulation
Regline
Vcc=12V to 25V
-
2.0
20
mV
Load Regulation
Regload
Io=1mA to 20mA
-
3.0
25
mV
Temperature. Stability
Ts
-
0.2
-
mV/ :
Total Output Variation
VREF
Line, Load, Temperature
4.82
-
5.18
V
Output Noise Voltage
Vn
F=10kHz to 10Hz,Tj=25 :
-
50
-
V
Long Term Stability
S
TA=125 ,1000Hrs
:
-
5
-
mV
Output Short Circuit current
ISC
-
-30
-85
-180
mA
Oscillator Section
Tj=25 :
49
52
55
TA=0
to 70
:
48
-
56
Frequency
Tj=25 (R
:
T
=6.2k,CT=1.0nF)
225
250
275
KHz
Frequency Change with Voltage
fosc/ V
Vcc=12V to 25V
-
0.2
1.0
%
Frequency Change with Temperature
fosc/ T
TA = 0
to 70
:
-
0.5
-
%
Oscillator Voltage Swing(Peak to Peak)
VOSC
-
1.6
-
V
Discharge Current
Idischg
Tj=25 :
TA = 0
to 70
:
7.8
7.6
8.3
-
8.8
mA
Error Amplifier Section
Voltage Feedback Input
VFB
Vo =2.5V
2.42
2.50
2.58
V
Input Bias Current
IIB
VFB=5.0V
-
-0.1
-2.0
A
Open Loop Voltage Gain
AVOL
Vo=2V to 4V
65
90
-
dB
Unity Gain Bandwidth
BW
Tj=25 :
0.7
1.0
-
MHz
Power Supply Rejection Ratio
PSRR
Vcc=12V to 25V
60
70
-
dB
Output Sink Current
Isink
Vo=1.1V,VFB=2.7V
2.0
12
-
mA
Output Source Current
Isource
Vo=5.0V,VFB=2.3V
-0.5
-1.0
-
mA
Output Voltage Swing High State
VoH
VFB=2.3V,RL=15K to GND
5.0
6.2
-
V
Output Voltage Swing Low State
VOL
VFB=2.7V,RL=15K to Vref
-
0.8
1.1
V
Current Sense section
Current Sense Input Voltage gain
Av
(Note 3,4)
2.85
3.0
3.15
V/V
Maximum Current Sense Input Threshold Vth
(Note 3)
0.9
1.0
1.1
V
Power Supply Rejection Ratio
PSRR
VCC= 12 to 25V (Note 3)
-
70
-
dB
Input Bias Current
IIB
-
-2
-10
A
Propagation Delay
Tplh(in/out) Current Sense Input to Output
-
150
300
ns
Isink=20mA
-
0.1
0.4
V
Output Low Voltage
VOL
Isink=200mA
-
1.6
2.2
V
Isource=20mA
13
13.5
-
V
Output High Level
VOH
Isource=200mA
12
13.4
-
V
Output Voltage with UVLO Activated
VOL
(UVLO)
VCC=6.0V,Isink=1.0mA
-
0.1
1.1
V
Output Voltage Rise Time
tr
Tj=25 ,C
:
L
=1nF
-
50
150
ns
Output Voltage Fall Time
tr
Tj=25 ,C
:
L
=1nF
-
50
150
ns
Under-Voltage Lockout Section
Startup Threshold
Vth
-
14.5
16
17.5
V
Min. Operating Voltage After Turn-on(VCC) VCC(min)
-
8.5
10
11.5
V
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