SLVS038I January 1989 – July 2016 TL2842 , TL2843 , TL2844 , TL2845 , TL3842 , TL3843 , TL3844 , TL3845
PRODUCTION DATA.
Refer to the PDF data sheet for device specific package drawings
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 N-channel MOSFETs, is low when it is in the off state.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
TLx84x | SOIC (8) | 4.90 mm × 3.91 mm |
SOIC (14) | 8.65 mm × 3.91 mm | |
PDIP (8) | 9.81 mm × 6.35 mm |