UC3848G-D08-T UTC [Unisonic Technologies], UC3848G-D08-T Datasheet - Page 4

• Manufacturer Part Number: UC3848G-D08-T
• Description: HIGH PERFORMANCE CURRENT MODE CONTROLLERS
• Manufacturer: UTC [Unisonic Technologies]

UC3848
Supply Voltage
Input Voltage to V
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
Supply Current with switch
UNDER-VOLTAGE LOCKOUT SECTION
Start Threshold Voltage
Min. Operating Voltage
Hysteresis
INTERNAL VOLTAGE REFERENCE
Reference Voltage
CONTROL SECTION
V
Burst-Mode Enter FB Voltage
Reduce-Frequency end FB Voltage
Burst-Mode Out FB Voltage
Switch Frequency
Duty Cycle
Feedback Resistor
Soft-Start Time
PROTECTION SECTION
OVP threshold
OLP threshold
Delay Time Of OLP
OTP threshold
OVP Disable threshold
OLP Enable threshold
CURRENT LIMITING SECTION
LEB
Peak Current Limitation
Threshold Voltage For I
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
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
PARAMETER
PARAMETER
PARAMETER
IN
Pin
VIN
=60uA
Normal
Power-Saving
OFF
ON
V
SYMBOL
V
V
V
V
V
V
V
SS(DEACT)
V
T
V
V
V
T
THD(ON)
F
D
SENSE-L
V
V
SS(ACT)
CC(MIN)
V
D
FB(OLP)
FB-END
I
CC(HY)
V
I
R
T
t
V
V
D-OLP
I
FB-out
OVP1
OVP1
(THR)
STR
OFF
FB-IN
LEB
(SW)
MAX
ON
REF
MAX
t
t
MIN
MIN
SS
CS
OH
FB
OL
R
F
SYMBOL
SYMBOL
(Ta＝25°C, V
T
T
V
V
V
V
V
(Ta＝25°C, V
T
OPR
STG
CC
FB
CS
CC
IN
J
V
V
V
Measured at pin V
V
V
V
V
Before enter burst mode
V
V
V
C
V
V
V
C
V
V
V
I
I
I
C
C
VIN
SOURCE
SINK
CC
SS
SS
CS
CS
CS
FB
FB
FB
FB
SS
SS
CS
FB
FB
FB
SS
SS
L
L
= 1.0 nF
=60uA
= 1.0 nF
=4.4V,V
=4.4V
=0
=0
=0
=0.47uF
=4.8V,V
=0.47uF
=V
= 4V
< 0.5V
=0V
> 5V, V
> 5V
TEST CONDITIONS
= 0, I
= 5V, I
< 3.5V, V
> 0V, SS Open
= 200 mA
THD(ON)
= 200 mA
CC
FB
FB
=15V, unless otherwise specified)
CC
CS
CC
FB
= 0
-0.1V
= 0
FB
=3V
=15V, unless otherwise specified)
=0
=22V
> 5V
LINEAR INTEGRATED CIRCUIT
REF
-40 ~ +125
-50 ~ +150
RATINGS
RATINGS
-0.3 ~ 6.2
-0.3 ~ 2.8
8.2 ~ 22
+150
30
30
13.5
12.2
MIN
120
7.5
6.3
0.5
9.9
4.7
3.9
5.1
61
20
68
16
55
0
TYP
14.2
0.86
11.2
0.77
135
220
200
8.2
6.5
1.5
1.6
1.7
4.9
4.1
5.4
22
50
68
74
21
19
28
62
7
7
6
MAX
12.6
150
300
6.7
4.4
5.1
4.3
5.7
2.5
45
15
75
40
80
26
70
90
9
9
9
1
QW-R103-033.F
UNIT
UNIT
4 of 11
°C
°C
°C
UNIT
V
V
V
V
V
kHz
kHz
mA
mA
mS
ms
μA
kΩ
°C
ns
ns
ns
%
%
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V