UC3843AD
Category: Power Switch Ics
Description: The UC3843AD is a current-mode Pulse Width Modulation (PWM) Controller providing the necessary features to control current-mode switched mode power supplies. Start-up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.
Price range ($)
0.23470 1.48400
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UC3843AD
UC3843AD has several brands around the world that may have alternate names for UC3843AD due to regional differences or acquisition. UC3843AD may also be known as the following names:
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Description
UC3843AD
Stock:5 |
Texas Instruments |
The UC3843AD is a current-mode Pulse Width Modulation (PWM) Controller providing the necessary features to control current-mode switched mode power supplies. Start-up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V. |
≥1: US $1.48400 US $1.33560 ≥5: US $1.11300 US $1.00170 ≥10: US $0.66780 US $0.60102 ≥20: US $0.64925 US $0.58432 ≥50: US $0.63070 US $0.56763 ≥100: US $0.61215 US $0.55093 ≥200: US $0.59360 US $0.53424 ≥500: US $0.58618 US $0.52756 ≥1000: US $0.57505 US $0.51755
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Inquiry
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UC3843AD
Stock:11 |
Texas Instruments 10+ |
The UC3843AD is a current-mode Pulse Width Modulation (PWM) Controller providing the necessary features to control current-mode switched mode power supplies. Start-up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V. |
≥1: US $0.46939 US $0.44123
More:
Inquiry
|
UC3843AD
Stock:38219 |
UC 97+ |
The UC3843AD is a current-mode Pulse Width Modulation (PWM) Controller providing the necessary features to control current-mode switched mode power supplies. Start-up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V. |
≥1: US $1.25730 US $1.13157 ≥5: US $0.83820 US $0.75438 ≥10: US $0.75438 US $0.67894 ≥20: US $0.73343 US $0.66008 ≥50: US $0.71247 US $0.64122 ≥100: US $0.69152 US $0.62236 ≥200: US $0.67056 US $0.60350 ≥500: US $0.66218 US $0.59596 ≥1000: US $0.64961 US $0.58464
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Inquiry
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UC3843AD
Stock:166 |
Moto/uc 99+ |
The UC3843AD is a current-mode Pulse Width Modulation (PWM) Controller providing the necessary features to control current-mode switched mode power supplies. Start-up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V. |
≥1: US $0.67056 US $0.60350
More:
Inquiry
|
UC3843AD
Stock:5 |
Texas Instruments 04+ |
The UC3843AD is a current-mode Pulse Width Modulation (PWM) Controller providing the necessary features to control current-mode switched mode power supplies. Start-up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V. |
≥1: US $0.23470 US $0.21123
More:
Inquiry
|
Out of stock |
UC3843AD
Stock:982 |
On Semiconductor 06+ |
The UC3843AD is a current-mode Pulse Width Modulation (PWM) Controller providing the necessary features to control current-mode switched mode power supplies. Start-up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V. |
≥1: US $0.37551 US $0.35298
More:
Inquiry
|
UC3843AD
Stock:447 |
LMI 0810+ |
The UC3843AD is a current-mode Pulse Width Modulation (PWM) Controller providing the necessary features to control current-mode switched mode power supplies. Start-up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V. |
≥1: US $0.33528 US $0.31516
More:
Inquiry
|
UC3843AD
Stock:10 |
Motorola 98+ |
The UC3843AD is a current-mode Pulse Width Modulation (PWM) Controller providing the necessary features to control current-mode switched mode power supplies. Start-up current is guaranteed to be less than 0.5mA. Oscillator discharge is trimmed to 8.3mA. During under voltage lockout, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V. |
≥1: US $1.04775 US $0.94298
More:
Inquiry
|
The UC3842A,UC3843A series of high performance fixed frequency current mode controllers are specifically designed for off-line and dc-to-dc converter applications offering the designer a cost effective solution with minimal external components.These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.
Also included are protective features consisting of input and reference under voltage lockouts each with hysteresis, cycle-by-cycle current limiting,programmable output deadtime, and a latch for single pulse metering.
These devices are available in an 8-pin dual-in-line plastic package as well as the 14-pin plastic surface mount (SO-14).The SO-14 package has separate power and ground pins for the totem pole output stage.
The UCx842A has UYLO thresholds of 16 V(on) and 10 V (off), ideally suited for off-line converters. The UCX843A is tailored for lower voltage applications having UVLO thresholds of 8.5 V (on) and 7.6 V (off).
● Trimmed Oscillator Discharge Current for Precise Duty Cycle Control
● Current Mode Operation to 500 kHz
● 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 Startup and Operating Current
● Direct Interface with Motorola SENSEFET Products
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