UC3844 datasheet(5/8 Pages) TI

5 / 8 page

UC1842/3/4/5

UC2842/3/4/5

UC3842/3/4/5

UNDER-VOLTAGE LOCKOUT

CURRENT SENSE CIRCUIT

OSCILLATOR SECTION

During under-voltage lock-out, the output driver is biased to

sink minor amounts of current. Pin 6 should be shunted to

ground with a bleeder resistor to prevent activating the power

switch with extraneous leakage currents.

A small RC filter may be required to suppress switch transients.

Peak Current (IS) is Determined By The Formula

ISMAX

≈

1.0V

RS

5

同様の部品番号 - UC3844

メーカー	部品番号	データシート	部品情報
Motorola, Inc	UC3844	376Kb / 14P	HIGH PERFORMANCE CURRENT MODE CONTROLLERS
Texas Instruments	UC3844	3Mb / 56P	[Old version datasheet] Current-Mode PWM Controllers
ON Semiconductor	UC3844	376Kb / 14P	HIGH PERFORMANCE CURRENT MODE CONTROLLERS 1996 REV 1
Guangdong Youtai Semico...	UC3844	874Kb / 7P	Low Start-Up and Operating Current
STMicroelectronics	UC3844	96Kb / 11P	CURRENTMODE PWM CONTROLLER

メーカー	部品番号	データシート	部品情報
NXP Semiconductors	UC3842	74Kb / 8P	Current-mode PWM controller August 31, 1994
Daewoo Semiconductor	DBL3842	467Kb / 8P	CURRENT MODE PWM CONTROLLER
BCD Semiconductor Manuf...	AP384XC	176Kb / 13P	CURRENT MODE PWM CONTROLLER
Cystech Electonics Corp...	MC7731N6	363Kb / 10P	Current Mode PWM Controller
BCD Semiconductor Manuf...	AP3842C	359Kb / 14P	CURRENT MODE PWM CONTROLLER
Texas Instruments	UC1846AJ	3Mb / 13P	[Old version datasheet] Current Mode PWM Controller
	UC3844Q	708Kb / 28P	[Old version datasheet] CURRENT MODE PWM CONTROLLER
	UC1843	937Kb / 3P	[Old version datasheet] Current Mode PWM Controller
	UC2846J	463Kb / 8P	[Old version datasheet] Current Mode PWM Controller
List of Unclassifed Man...	AMC3842B	365Kb / 10P	CURRENT MODE PWM CONTROLLER
List of Unclassifed Man...	CM3842	638Kb / 12P	CURRENT MODE PWM CONTROLLER