Zenode.ai Logo
Beta
⌘K
Log InSign Up
UC3842AD8TR - 8-SOIC

UC3842AD8TR

Active
Texas Instruments

30-V, 1A, 500KHZ CURRENT MODE PWM CONTROLLER WITH 16V/10V UVLO 100% DUTY CYCLE, 0°C TO 70°C

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsDN-27 UC1842/UC1842A Family - Summary of Functional DifferencesConditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (Rev. A)+11
UC3842AD8TR - 8-SOIC

UC3842AD8TR

Active
Texas Instruments

30-V, 1A, 500KHZ CURRENT MODE PWM CONTROLLER WITH 16V/10V UVLO 100% DUTY CYCLE, 0°C TO 70°C

Deep-Dive with AI

DocumentsDN-27 UC1842/UC1842A Family - Summary of Functional DifferencesConditioning a Switch-mode Power Supply Current Signal Using TI Op Amps (Rev. A)+11

Technical Specifications

Parameters and characteristics for this part

SpecificationUC3842AD8TR
ApplicationsPWM Controller
Current - Supply11 mA
Mounting TypeSurface Mount
Operating Temperature [Max]70 °C
Operating Temperature [Min]0 °C
Package / Case8-SOIC
Package / Case [x]0.154 in
Package / Case [y]3.9 mm
Supplier Device Package8-SOIC
Voltage - Input [Max]6.3 V
Voltage - Input [Min]-3 V
Voltage - Supply [Max]30 VDC
Voltage - Supply [Min]10 VDC

UC3842A Series

30-V, 1A, 500KHz current mode PWM controller with 16V/10V UVLO 100% duty cycle, 0°C to 70°C

PartVoltage - Supply [Max]Voltage - Supply [Min]Mounting TypeCurrent - SupplyVoltage - Input [Min]Voltage - Input [Max]Package / CasePackage / Case [y]Package / Case [x]Supplier Device PackageApplicationsOperating Temperature [Max]Operating Temperature [Min]TopologyControl FeaturesSynchronous RectifierOutput TypeOutput ConfigurationClock SyncNumber of OutputsOutput PhasesDuty Cycle (Max) [Max]Voltage - Supply (Vcc/Vdd) [Max]Voltage - Supply (Vcc/Vdd) [Min]FunctionPackage / CasePackage / Case
Texas Instruments
UC3842AD8
30 VDC
10 VDC
Surface Mount
11 mA
-3 V
6.3 V
8-SOIC
3.9 mm
0.154 in
8-SOIC
PWM Controller
70 °C
0 °C
Texas Instruments
UC3842AD
30 VDC
10 VDC
Surface Mount
11 mA
-3 V
6.3 V
14-SOIC
3.9 mm
0.154 in
PWM Controller
70 °C
0 °C
Texas Instruments
UC3842AD8TRG4
30 VDC
10 VDC
Surface Mount
11 mA
-3 V
6.3 V
8-SOIC
3.9 mm
0.154 in
8-SOIC
PWM Controller
70 °C
0 °C
Texas Instruments
UC3842ADTR
30 VDC
10 VDC
Surface Mount
11 mA
-3 V
6.3 V
14-SOIC
3.9 mm
0.154 in
PWM Controller
70 °C
0 °C
Texas Instruments
UC3842DG4
Surface Mount
14-SOIC
3.9 mm
0.154 in
70 °C
0 °C
Boost
Buck
Buck-Boost
Flyback
Forward
Frequency Control
Transistor Driver
Isolation Capable
Positive
1
1
97 %
30 V
10 V
Step-Down
Step-Up
Step-Up/Step-Down
Texas Instruments
UC3842D8
28 V
12 V
Surface Mount
11 mA
-3 V
6.3 V
8-SOIC
3.9 mm
0.154 in
8-SOIC
PWM Controller
70 °C
0 °C
Texas Instruments
UC3842ADW
30 VDC
10 VDC
Surface Mount
11 mA
-3 V
6.3 V
16-SOIC
7.5 mm
0.295 in
16-SOIC
PWM Controller
70 °C
0 °C
Texas Instruments
UC3842AD8TR
30 VDC
10 VDC
Surface Mount
11 mA
-3 V
6.3 V
8-SOIC
3.9 mm
0.154 in
8-SOIC
PWM Controller
70 °C
0 °C
Texas Instruments
UC3842ANG4
30 VDC
10 VDC
Through Hole
11 mA
-3 V
6.3 V
8-DIP
8-PDIP
PWM Controller
70 °C
0 °C
0.3 in
7.62 mm
Texas Instruments
UC3842AN
30 VDC
10 VDC
Through Hole
11 mA
-3 V
6.3 V
8-DIP
8-PDIP
PWM Controller
70 °C
0 °C
0.3 in
7.62 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyCut Tape (CT) 1$ 1.07
10$ 0.95
25$ 0.90
100$ 0.74
250$ 0.69
500$ 0.61
1000$ 0.48
Digi-Reel® 1$ 1.07
10$ 0.95
25$ 0.90
100$ 0.74
250$ 0.69
500$ 0.61
1000$ 0.48
Tape & Reel (TR) 2500$ 0.45
5000$ 0.43
12500$ 0.41
Texas InstrumentsLARGE T&R 1$ 0.62
100$ 0.47
250$ 0.35
1000$ 0.25

Description

General part information

UC3842A Series

The UCx84xA family of control devices is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control current-mode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5mA, oscillator discharge is trimmed to 8.3mA, and during UVLO, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.

The UCx84xA family of control devices is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control current-mode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5mA, oscillator discharge is trimmed to 8.3mA, and during UVLO, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.