UC3842BN
Current Mode PWM Controller, 12V-25V supply, 250kHz, 13.5V/200mA out, DIP-8
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| Quantity | Price (Incl GST) |
|---|---|
| 1+ | $1.440 ($1.656) |
| 10+ | $0.858 ($0.9867) |
| 100+ | $0.720 ($0.828) |
| 500+ | $0.683 ($0.7854) |
| 1000+ | $0.644 ($0.7406) |
| 2500+ | $0.632 ($0.7268) |
| 5000+ | $0.619 ($0.7118) |
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)
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Associated Products
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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