E-UC2842BN STMicroelectronics, E-UC2842BN Datasheet - Page 10
![IC CTRLR PWM CURR MODE 8-MINIDIP](/photos/1/39/13944/497-8-dip_sml.jpg)
E-UC2842BN
Manufacturer Part Number
E-UC2842BN
Description
IC CTRLR PWM CURR MODE 8-MINIDIP
Manufacturer
STMicroelectronics
Datasheet
1.UC3845BD1013TR.pdf
(15 pages)
Specifications of E-UC2842BN
Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
500kHz
Duty Cycle
100%
Voltage - Supply
11 V ~ 25 V
Buck
No
Boost
Yes
Flyback
Yes
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
Yes
Operating Temperature
-25°C ~ 85°C
Package / Case
8-DIP (0.300", 7.62mm)
Frequency-max
500kHz
Duty Cycle (max)
100 %
Output Voltage
4.95 V to 5.05 V
Output Current
1000 mA
Mounting Style
Through Hole
Switching Frequency
500 KHz
Operating Supply Voltage
30 V
Maximum Operating Temperature
+ 150 C
Fall Time
50 ns
Minimum Operating Temperature
- 40 C
Rise Time
50 ns
Synchronous Pin
No
Topology
Boost, Flyback, Forward
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Figure 20 : Latched Shutdown.
UC2842B/3B/4B/5B - UC3842B/3B/4B/5B
Figure 21: Error Amplifier Compensation
10/15
SCR must be selected for a holding current of less than 0.5mA at T
The simple two transistor circuit can be used in place of the SCR as shown. All resistors are 10K.
C
Error Amp compensation circuit for stabilizing any current-mode topology except
for boost and flyback converters operating with continuous inductor current.
Error Amp compensation circuit for stabilizing current-mode boost and flyback
topologies operating with continuous inductor current.
R
P
From V
P
From V
O
R
R
i
R
R
O
d
d
i
C
3905
2N
f
C
f
3903
R
R
2N
f
f
4
8
2
1
2
1
2
1
2.5V
2.5V
+
-
+
+
-
-
R
R
EA
EA
EA
+
+
+
1mA
1mA
1mA
OSC
BIAS
2R
2R
2R
D95IN350
R
R
R
A(min)
5
5
5
.
D95IN351