UC3846G-D08-T UTC [Unisonic Technologies], UC3846G-D08-T Datasheet - Page 4

• Manufacturer Part Number: UC3846G-D08-T
• Description: LOW COST POWER-SAVING MODE PWM CONTROLLER FOR FLYBACK CONVERTERS
• Manufacturer: UTC [Unisonic Technologies]

UC3846
Supply Voltage
Zener Clamp
Zener Current
Input Voltage to FB Pin
Input Voltage to CS Pin
Junction Temperature
Operating Temperature
Storage Temperature
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Supply Voltage
SUPPLY SECTION
Start Up Current
IC Operating current
UNDER-VOLTAGE LOCKOUT SECTION
Start Threshold Voltage
Min. Operating Voltage
Hysteresis
INTERNAL VOLTAGE REFERENCE
Reference Voltage
CONTROL SECTION
V
Burst-Mode Out FB Voltage
Reduce-Frequency end FB Voltage
Burst-Mode Enter FB Voltage
Switch Frequency
Duty Cycle
Frequency Hopping
Frequency Variation VS V
Frequency Variation VS Temperature Deviation
Feedback Resistor
PROTECTION SECTION
OVP threshold
OTP threshold
CURRENT LIMITING SECTION
Peak Current Limitation
DRIVER OUTPUT SECTION
Output Voltage Low State
Output Voltage High State
Output Voltage Rise Time
Output Voltage Fall Time
FB
Operating Level
ABSOLUTE MAXIMUM RATINGS
OPERATING RANGE
ELECTRICAL CHARACTERISTICS
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
PARAMETER
PARAMETER
PARAMETER
DD
Deviation
Normal
Power-Saving
SYMBOL
(Ta＝25°C, V
V
V
V
V
V
V
F
T
THD(ON)
F
D
V
V
FB(OUT)
FB(END)
V
(Ta＝25°C, V
DD(MIN)
V
D
DD(HY)
V
I
F
F
R
V
V
I
FB(IN)
J(SW)
(THR)
STR
(SW)
SYMBOL
SYMBOL
MAX
OVP
t
OP
REF
MAX
t
MIN
MIN
DV
DT
CS
OH
FB
OL
R
F
V
T
T
V
SENSE
V
V
T
OPR
STG
DD
DD
FB
J
V
FB PIN OPEN
measured at pin V
V
V
V
FB PIN OPEN
Before enter burst mode
FB PIN OPEN, V
V
V
T=-40 to 105°C
V
FB PIN OPEN
FB PIN OPEN
I
I
C
C
SOURCE
SINK
DD
SENSE
SENSE
SENSE
FB
DD
FB
L
L
DD
TEST CONDITIONS
= 1.0 nF
= 1.0 nF
<0.5V
=0V
=10 to 20V
= V
=15V, unless otherwise specified)
= 200 mA
DD
=15V, RI=100kΩ ,unless otherwise specified)
=0
=0
=0
DD(ON)
= 200 mA
LINEAR INTEGRATED CIRCUIT
-0.1V
SENSE
FB
-40 ~ +125
-50 ~ +150
RATINGS
RATINGS
8.2 ~ 21
=0
+150
25
28
10
7
7
13.5
±1.5
12.2
MIN
120
7.5
6.3
0.5
61
24
68
16
0
TYP
14.2
0.85
135
200
8.2
6.5
1.7
1.6
1.5
22
68
74
±3
21
28
50
7
6
MAX
±4.5
150
300
6.7
4.4
2.5
45
15
75
31
80
26
90
9
9
5
5
1
QW-R103-053.B
UNIT
UNIT
4 of 10
mA
°C
°C
°C
UNIT
V
V
V
V
V
kHz
kHz
kHz
mA
μA
kΩ
°C
ns
ns
%
%
%
%
V
V
V
V
V
V
V
V
V
V
V
V
V