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---|---|
1+ | $1.480 ($1.702) |
10+ | $0.885 ($1.0178) |
100+ | $0.743 ($0.8544) |
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5000+ | $0.639 ($0.7348) |
Product Information
Product Overview
The UC3842BN is a high performance current mode PWM Controller IC provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under voltage lockout featuring start-up current less than 0.5mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control and a totem pole output stage designed to source or sink high peak current.
- Trimmed oscillator for precise frequency control
- Oscillator frequency guaranteed at 250kHz
- Current mode operation to 500kHz
- Automatic feed forward compensation
- Latching PWM for cycle-by-cycle current limiting
- Internally trimmed reference with under-voltage lockout
- High current totem pole output
- Under voltage lockout with hysteresis
- Low start-up and operating current
Applications
Power Management
Technical Specifications
Single Ended Controller
Current Mode Control
25V
8Pins
52kHz
-
100%
-25°C
UC2842B/3B/4B/5B; UC3842B/3B/4B/5B
MSL 1 - Unlimited
-
250kHz
200mA
1Channels
12V
DIP
Through Hole
-
0%
Boost, Flyback
85°C
-
No SVHC (21-Jan-2025)
DIP
15V
5.1V
Technical Docs (3)
Alternatives for UC3842BN
2 Products Found
Associated Products
2 Products Found
Legislation and Environmental
Country in which last significant manufacturing process was carried outCountry of Origin:China
Country in which last significant manufacturing process was carried out
RoHS
RoHS
Product Compliance Certificate