NCV3843BV ON Semiconductor, NCV3843BV Datasheet - Page 3

• Manufacturer Part Number: NCV3843BV
• Description: High Performance Current Mode Controllers
• Manufacturer: ON Semiconductor

1. Adjust V
2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
3. This parameter is measured at the latch trip point with V
4. Comparator gain is defined as: A
ELECTRICAL CHARACTERISTICS
T
REFERENCE SECTION
OSCILLATOR SECTION
ERROR AMPLIFIER SECTION
CURRENT SENSE SECTION
Reference Output Voltage (I
Line Regulation (V
Load Regulation (I
Temperature Stability
Total Output Variation over Line, Load, and Temperature
Output Noise Voltage (f = 10 Hz to 10 kHz, T
Long Term Stability (T
Output Short Circuit Current
Frequency
Frequency Change with Voltage (V
Frequency Change with Temperature, T
Oscillator Voltage Swing (Peak−to−Peak)
Discharge Current (V
Voltage Feedback Input (V
Input Bias Current (V
Open Loop Voltage Gain (V
Unity Gain Bandwidth (T
Power Supply Rejection Ratio (V
Output Current
Output Voltage Swing
Current Sense Input Voltage Gain (Notes 3 and 4)
Maximum Current Sense Input Threshold (Note 3)
Power Supply Rejection Ratio (V
Input Bias Current
Propagation Delay (Current Sense Input to Output)
A
T
T
NCV3843BV: T
change control.
is the operating ambient temperature range that applies [Note 2], unless otherwise noted.)
low
high
T
T
T
T
Sink (V
Source (V
High State (R
Low State (R
A
J
J
J
= 0°C for UC3842B, UC3843B; −25°C for UC2842B, UC2843B; −40°C for UC3842BV, UC3843BV
= 25°C
= 25°C (R
= 25°C, T
= T
= +70°C for UC3842B, UC3843B; +85°C for UC2842B, UC2843B; +105°C for UC3842BV, UC3843BV
CC
low
O
= 1.1 V, V
above the Startup threshold before setting to 15 V.
to T
O
= 5.0 V, V
A
T
L
low
L
high
= T
= 6.2 k, C
= 15 k to V
O
CC
= 15 k to ground, V
= −40°C, T
= 1.0 mA to 20 mA)
Characteristics
low
FB
OSC
= 12 V to 25 V)
A
FB
= 125°C for 1000 Hours)
= 5.0 V)
to T
J
UC3842B, UC3843B, UC2842B, UC2843B, NCV3843BV
FB
= 2.7 V)
= 2.0 V)
= 25°C)
O
O
T
O
high
= 2.3 V)
= 2.5 V)
ref
= 1.0 nF)
T
= 2.0 V to 4.0 V)
= 1.0 mA, T
high
A
, V
CC
= T
CC
FB
V
= +105°C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and
CC
= 12 V to 25 V, Note 3)
low
= 12 V to 25 V)
= 2.7 V)
DV Output Compensation
FB
UC284XB, UC384XB
UC284XB, UC384XB
UC284XB, UC384XB
UC284XB, UC384XB
DV Current Sense Input
= 12 V to 25 V)
to T
A
(V
= 2.3 V)
= T
J
CC
= 25°C)
high
J
low
= 15 V [Note 1], R
= 25°C)
UC384XBV
UC384XBV
UC384XBV
UC384XBV
to T
high
http://onsemi.com
FB
= 0 V.
t
Df
Df
PLH(In/Out)
Symbol
Reg
Reg
T
PSRR
I
PSRR
I
OSC
OSC
V
A
Source
f
dischg
I
V
V
V
V
V
BW
I
OSC
Sink
V
= 10 k, C
T
V
OSC
A
I
VOL
I
SC
3
S
IB
OH
IB
FB
OL
ref
ref
S
V
th
n
load
line
/DV
/DT
T
− 0.5
4.95
− 30
2.45
2.85
Min
225
4.9
7.8
7.5
0.7
2.0
5.0
0.9
= 3.3 nF. For typical values T
49
48
65
60
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
UC284XB
− 0.1
− 2.0
− 85
−1.0
Typ
250
150
5.0
2.0
3.0
0.2
5.0
0.2
1.0
1.6
8.3
2.5
1.0
6.2
0.8
3.0
1.0
50
52
90
70
12
70
−
−
−
−
−
−
−
−180
Max
5.05
2.55
−1.0
3.15
275
−10
300
5.1
1.0
8.8
8.8
1.1
1.1
20
25
55
56
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
− 0.5
4.82
− 30
2.42
2.85
2.85
0.85
Min
225
4.9
7.8
7.6
7.2
0.7
2.0
5.0
0.9
49
48
65
60
−
−
−
−
−
−
−
−
−
−
−
−
−
−
UC384XB, XBV
A
= 25°C, for min/max values
− 0.1
− 2.0
− 85
−1.0
Typ
250
150
5.0
2.0
3.0
0.2
5.0
0.2
0.5
1.6
8.3
2.5
1.0
6.2
0.8
0.8
3.0
3.0
1.0
1.0
50
52
90
70
12
70
−
−
−
−
−180
− 2.0
Max
5.18
2.58
3.15
3.25
275
−10
300
5.1
1.0
8.8
8.8
8.8
1.1
1.2
1.1
1.1
20
25
55
56
−
−
−
−
−
−
−
−
−
−
−
−
mV/°C
Unit
MHz
kHz
mV
mV
mV
mA
mA
mA
V/V
mV
mA
dB
dB
dB
mA
ns
%
%
V
V
V
V
V
V