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Details for TL3843D-8 by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
TL3843D-8
Buy Directly from Texas Instruments (619 in stock) $0.2600
IC PWM CONTROLLER CURR-MODE SOIC8
TL3843D-8 image

TL3843D-8 by Texas Instruments

IC PWM CONTROLLER CURR-MODE SOIC8
Features
500-kHz Operation
Automatic Feed-forward compensation
Designed to be Interchangeable with UC2842 and
Double-Pulse Suppression
Enhanced Load-Response Characteristics
Error Amplifier With Low Output Resistance
High-Current Totem-Pole Output
Internally Trimmed Bandgap Reference
Low Start-Up Current (< 1 mA)
Optimized for Off-Line and DC-to-DC Converters
Pulse-by-Pulse Current Limiting
Undervoltage Lockout With Hysteresis
Part Information
TL3843D-8 image
RoHS Compliant
Description
The TL284x and TL384x series of control integrated circuits provide the features that are necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes, with a minimum number of external components. Some of the internally implemented circuits are an undervoltage lockout (UVLO), featuring a start-up current of less than 1 mA, and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator (that also provides current-limit control), and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving Nchannel MOSFETs, is low when it is in the off state.
Specifications
Input Voltage:
5.5V
Output Voltage:
30V
Output Current:
200mA
Supply Voltage Min:
12V
Supply Voltage Max:
25V
Controller IC Case Style:
SOIC
No. of Pins:
8Pins
Frequency:
500kHz
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Base Number:
3843
Controller Type:
PWM
IC Temperature Range:
Commercial
Operating Temperature Range:
0°C to +70°C
Output Energy per Cycle:
5µJ
Output Type:
Totem Pole
Supply Voltage Range:
12V to 25V
Termination Type:
Surface Mount Device
Alternate Descriptions
Current Mode PWM Controller 0V to 30V 200mA 8-Pin SOIC Tube Avnet America
Current Mode PWM Controller 0V to 30V 200mA 8-Pin SOIC Tube Avnet Europe
Economy single ended 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle, 0-70C Texas Instruments