ON Semiconductor UC3843BVDR2

Name: UC3843BVDR2
Brand: ON Semiconductor
SKU: 3752978-UC3843BVDR2
Availability: InStock
Rating: 5 (1 reviews)

Part Number:: UC3843BVDR2

Manufacturer:: ON Semiconductor

Ventron No:: 3752978-UC3843BVDR2

Description:: IC REG CTRLR FLYBACK 14SOIC

ECAD Model:

Datasheet:: UC3842B-43B, UC2842B-43B

Overview

Description
The UC3842B, UC3843B, UC2842B, UC2843B, and NCV3843BV are high-performance, fixed-frequency current mode controllers designed for offline and DC-DC converter applications. They offer a cost-effective solution with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature-compensated reference, a high-gain error amplifier, a current-sensing comparator, and a high-current totem pole output ideally suited for driving a power MOSFET.

Features
Trimmed oscillator for precise frequency control
Oscillator frequency guaranteed at 250 kHz
Current mode operation to 500 kHz
Automatic feed forward compensation
Latching PWM for cycle-by-cycle current limiting
Internally trimmed reference with undervoltage lockout
High current totem pole output
Undervoltage lockout with hysteresis
Low startup and operating current
Pb-Free packages available

Applications
Off-line converters
DC-DC converters
Power supplies
Motor control
Lighting

Specifications

ON Semiconductor UC3843BVDR2 technical specifications, attributes, parameters and parts with similar specifications to ON Semiconductor UC3843BVDR2.

Mounting Type
Surface Mount
Package / Case
14-SOIC (0.154, 3.90mm Width)
Surface Mount
YES
Number of Pins
14
Operating Temperature
-40°C~105°C TA
Packaging
Tape & Reel (TR)
Published
2007
JESD-609 Code
e0
Part Status
Obsolete
Moisture Sensitivity Level (MSL)
1 (Unlimited)
Number of Terminations
14
ECCN Code
EAR99
Terminal Finish
Tin/Lead (Sn/Pb)
Subcategory
Switching Regulator or Controllers
Technology
BIPOLAR
Terminal Position
DUAL
Terminal Form
GULL WING
Peak Reflow Temperature (Cel)
240
Frequency
60kHz
Reflow Temperature-Max (s)
30
Base Part Number
UC384*B
Function
Step-Up, Step-Up/Step-Down
Number of Outputs
1
Output Voltage
5.1V
Output Type
Transistor Driver
Operating Supply Voltage
30V
Input Voltage-Nom
15V
Analog IC - Other Type
SWITCHING CONTROLLER
Output Configuration
Positive
Output Current
1A
Voltage - Supply (Vcc/Vdd)
7.6V~30V
Quiescent Current
12mA
Control Features
Frequency Control
Topology
Boost, Flyback
Control Mode
CURRENT-MODE
Frequency - Switching
Up to 500kHz
Input Voltage (Max)
25V
Control Technique
PULSE WIDTH MODULATION
Rise Time
50ns
Synchronous Rectifier
No
Fall Time (Typ)
50 ns
Switcher Configuration
SINGLE
Max Duty Cycle
96 %
Length
8.65mm
Width
3.9mm
RoHS Status
Non-RoHS Compliant
Lead Free
Contains Lead

Certification

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UC3843BVDR2 Specification

Part Number	Manufacturers	Description	Stock	Price
UC3843BVDR2G DISTI #V72:2272_07278920	ON Semiconductor	Current Mode PWM Controller 1A 14-Pin SOIC N T/R RoHS: Compliant	2500	1 $0.6847 10 $0.5701 25 $0.5067 100 $0.3169 250 $0.2852 500 $0.2567 1000 $0.2456
UC3843BVDR2G DISTI #V36:1790_07278920	ON Semiconductor	Current Mode PWM Controller 1A 14-Pin SOIC N T/R RoHS: Compliant	0	2500 $0.2246 25000 $0.22 250000 $0.1918 1250000 $0.175 2500000 $0.1747
UC3843BVDR2G DISTI #UC3843BVDR2GOSCT-ND	ON Semiconductor	IC REG CTRLR FLYBACK 14SOIC RoHS: Compliant	3896	1 $0.65 10 $0.56 100 $0.4179 500 $0.32836 1000 $0.25373
UC3843BVDR2G DISTI #UC3843BVDR2GOSDKR-ND	ON Semiconductor	IC REG CTRLR FLYBACK 14SOIC RoHS: Compliant	3896	1 $0.65 10 $0.56 100 $0.4179 500 $0.32836 1000 $0.25373
UC3843BVDR2G DISTI #UC3843BVDR2GOSTR-ND	ON Semiconductor	IC REG CTRLR FLYBACK 14SOIC RoHS: Compliant	2500	2500 $0.2246 5000 $0.21011 12500 $0.19562 25000 $0.18547
UC3843BVDR2 DISTI #UC3843BVDR2OSTR-ND	ON Semiconductor	IC REG CTRLR FLYBACK 14SOIC RoHS: Not Compliant	0
UC3843BVDR2 DISTI #UC3843BVDR2OSCT-ND	ON Semiconductor	IC REG CTRLR FLYBACK 14SOIC RoHS: Not Compliant	0
UC3843BVDR2 DISTI #UC3843BVDR2OSDKR-ND	ON Semiconductor	IC REG CTRLR FLYBACK 14SOIC RoHS: Not Compliant	0
UC3843BVDR2G DISTI #31042362	ON Semiconductor	Current Mode PWM Controller 1A 14-Pin SOIC N T/R RoHS: Compliant	2500	30 $0.6847
UC3843BVDR2G DISTI #UC3843BVDR2G	ON Semiconductor	Current Mode PWM Controller 1A 14-Pin SOIC T/R - T RoHS: Compliant	7500	2500 $0.1639 5000 $0.1629 10000 $0.1609 15000 $0.1589 25000 $0.1549
UC3843BVDR2G DISTI #UC3843BVDR2G	ON Semiconductor	Current Mode PWM Controller 1A 14-Pin SOIC T/R - B	0	1191 $0.2739 2382 $0.2719 3573 $0.2689 5955 $0.2649 11910 $0.2589
UC3843BVDR2G DISTI #UC3843BVDR2G	ON Semiconductor	Current Mode PWM Controller 1A 14-Pin SOIC T/R (Al RoHS: Compliant	0	2500 $0.2479 5000 $0.2029 10000 $0.1859 15000 $0.1719 25000 $0.1589
UC3843BVDR2G DISTI #42AC1857	ON Semiconductor	Current Mode PWM Controller 1A 14-Pin SOIC T/R - P RoHS: Compliant	0	1 $0.73 10 $0.607 25 $0.535 50 $0.463 100 $0.391 250 $0.365 500 $0.339
UC3843BVDR2G DISTI #42AC1857	ON Semiconductor	PWM CONTROLLER, 52KHZ, 30V, SOIC-14, Input Voltag	2490	1 $0.737 10 $0.613 25 $0.54 50 $0.468 100 $0.395 250 $0.369 500 $0.342 1000 $0.316
UC3843BVDR2G DISTI #75C8022	ON Semiconductor	IC,SMPS CONTROLLER,CURRENT-MODE,BIPOLAR,SOP,14PIN,	0	1 $0.337 3000 $0.329 6000 $0.303 12000 $0.284 18000 $0.264 30000 $0.253
UC3843BVDR2G. DISTI #84AC3185	ON Semiconductor	ANA SMPS PWM CONTROLLER ROHS COMPLIANT: YES	5000	1 $0.337 3000 $0.329 6000 $0.303 12000 $0.284 18000 $0.264 30000 $0.253
UC3843BVDR2G DISTI #	ON Semiconductor	UC2843 Series 30 V 30 mA 500 kHz Current Mode Cont RoHS: Compliant	2500	2500 $0.166 5000 $0.158
UC3843BVDR2G DISTI #863-UC3843BVDR2G	ON Semiconductor	Switching Controllers 52kHz 1A Current PWM w/96% D RoHS: Compliant	3744	1 $0.63 10 $0.523 100 $0.318 1000 $0.246 2500 $0.21 10000 $0.195 25000 $0.185
UC3843BVDG DISTI #863-UC3843BVDG	ON Semiconductor	Switching Controllers ANA SMPS PWM CNTRLLR RoHS: Compliant	1285	1 $0.87 10 $0.717 100 $0.463 1000 $0.37 2500 $0.313 10000 $0.301 25000 $0.289
UC3843BVDR2G DISTI #	ON Semiconductor	Switching Controller, Current-mode, 1A, 500kHz Swi RoHS: Compliant	7335	1 $0.28 25 $0.26 100 $0.25 500 $0.24 1000 $0.22
UC3843BVDR2G DISTI #	ON Semiconductor		2353
UC3843BVDR2G DISTI #XSFP00000067879		RoHS: Compliant	5000	2500 $0.2371 5000 $0.2213
UC3843BVDR2G DISTI #2808768	ON Semiconductor	PWM CONTROLLER, 52KHZ, 30V, SOIC-14 RoHS: Compliant	2490	1 $0.98 10 $0.844 100 $0.63 500 $0.495 1000 $0.383
UC3843BVDR2G DISTI #2808768	ON Semiconductor	PWM CONTROLLER, 52KHZ, 30V, SOIC-14	2490	1 $0.667 10 $0.555 25 $0.489 50 $0.424 100 $0.358

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ON Semiconductor UC3843BVDR2

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