GP3843 Datasheet, PDF (2/9 Pages) GTM CORPORATION – HIGH PERFORMANCE CURRENT MODE CONTROLERS

CORPORATION ISSUED DATE :2004/04/19
REVISED DATE :2004/09/30B
Error Amplifier Output Sink Current
Io
10
mA
Power Dissipation at Thermal
Characteristics
PD
P JA
1250
100
mW
к/W
Storage Temperature Range
Tstg
-65 to 150
к
Operating Junction Temperature
TJ
+150
к
Operating ambient Temperature
TA
0~+70
к
Electrical Characteristics (0к TA 70к,Vcc=15V[note 2],RT=10k,CT=3.3Nf,unless otherwise specified)
Parameter
SYMBOL
Test Conditions
Typ.
Max.
Reference Section
Output Voltage
VREF
Tj=25к,Io=1mA
4.90
5
Line Regulation
Regline
Vcc=12V to 25V
2.0
Load Regulation
Regload _{Io=1mA to 20mA}
3.0
Temperature. Stability
Ts
0.2
Total Output Variation
VREF
Line, Load, Temperature
4.82
-
Output Noise Voltage
Vn
F=10kHz to 10Hz,Tj=25к
-
50
Long Term Stability
S
TA=125к,1000Hrs
-
5
Output Short Circuit current
ISC
-30
-85
Oscillator Section
Frequency
Tj=25к
49
52
TA=0к to 70к
48
Tj=25к(RT=6.2k,CT=1.0nF)
225
250
Frequency Change with Voltage
fosc/ V _{Vcc=12V to 25V}
0.2
Frequency Change with Temperature
fosc/ T _{TA = 0к to 70 к}
0.5
Oscillator Voltage Swing(Peak to Peak) ^VOSC
1.6
Discharge Current
Idischg
Tj=25к
TA = 0к to 70к
7.8
8.3
7.6
Error Amplifier Section
Voltage Feedback Input
VFB
Vo =2.5V
2.42
2.50
Input Bias Current
Open Loop Voltage Gain
Unity Gain Bandwidth
IIB
AVOL
BW
VFB=5.0V
Vo=2V to 4V
Tj=25к
-0.1
65
90
0.7
1.0
Power Supply Rejection Ratio
PSRR
Vcc=12V to 25V
60
70
Output Sink Current
Isink
Vo=1.1V,VFB=2.7V
2.0
12
Output Source Current
Isource
Vo=5.0V,VFB=2.3V
-0.5
-1.0
Output Voltage Swing High State
VoH
VFB=2.3V,RL=15K to GND
5.0
6.2
Output Voltage Swing Low State
VOL
VFB=2.7V,RL=15K to Vref
0.8
Current Sense section
Current Sense Input Voltage gain
Av
(Note 3,4)
2.85
3.0
Maximum Current Sense Input Threshold ^Vth
(Note 3)
0.9
1.0
Power Supply Rejection Ratio
PSRR
VCC= 12 to 25V (Note 3)
70
Input Bias Current
Propagation Delay
Output Low Voltage
IIB
-2
Tplh(in/out) _{Current Sense Input to Output}
150
VOL
Isink=20mA
0.1
Isink=200mA
1.6
Output High Level
VOH
Isource=20mA
Isource=200mA
13
13.5
12
13.4
VOL
VCC=6.0V,Isink=1.0mA
0.1
Output Voltage with UVLO Activated
(UVLO)
Output Voltage Rise Time
tr
Tj=25к,CL=1nF
50
Output Voltage Fall Time
tr
Tj=25к,CL=1nF
50
5.1
20
25
-
5.18
-
-
-180
55
56
275
1.0
8.8
8.8
2.58
-2.0
1.1
3.15
1.1
-10
300
0.4
2.2
1.1
150
150
Unit
V
mV
mV
mV/к
V
V
mV
mA
KHz
%
%
V
mA
V
A
dB
MHz
dB
mA
mA
V
V
V/V
V
dB
A
ns
V
V
V
V
V
ns
ns
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