UC3843A

所属类别：ACDC-和-DCDC-电源
产品名称：电流模式 PWM 控制器
厂商：TI
生产批号：10+
封装：14SOIC, 8PDIP, 8SOIC
库存状态：有库存
库存量：30000
最低订购量：1
详细资料：

Product Introduction

The control IC UC1842A/3A/4A/5A family is a pin-compatible series of improved versions of the UC3842/3/4/5 pins. Providing the necessary functions to control the current mode switching power supply, this home has the following improved features. The starting current is guaranteed to be less than 0.5 mA. The oscillator discharge is trimmed to 8.3 milliamps. In undervoltage lockout, the output stage can absorb at least 10 milliamps less than the 1.2V 5V V CC.

characteristic

Optimize offline and DC-to-DC converters
低启动电流“（
Side vibration discharge current
Automatic feedforward compensation
The pulse is limited by the pulse current
Enhanced load response characteristics
Undervoltage locking hysteresis
Dual pulse suppression
The totem pole outputs a large current
Internal fine-tuning bandgap datum
500kHz operation
Low voltage reverse osmosis error amplifier

parameter

			UC3843A
topology			Boost, buck, reverse, forward
Control method			Current mode
Duty Cycle (Max) (%)			100
Frequency (max) (kHz)			450
On/off of undervoltage lockout threshold (5)			8.4/7.6
Pin/Pack			14SOIC，8PDIP，8SOIC
(#) Regulated output			One
Operating Temperature Range (°C)			0 to 70

ICs related to UC3843A include:

Model	Manufacturers	lot number	encapsulation	illustrate
KA3843A	Samsung	07+	DIP-8	Brand new original
UC3843AD1	ON	03+	SOP-8	Current PWM controller
UC3843ADR2	ON	03+	SOP-14	Current PWM controller
UC3843AD	TI	09+	SOP-14	Brand new original
UC3843ADTR	TI	09+	SOP-14	Brand new original
UC3843A	TI	10+	14SOIC, 8PDIP, 8SOIC	Current-mode PWM controller
UC3843AD1R2	MIC	04+	TSSOP14
UC3843ADM-TR	NEC	07+ LF	TO126
UC3843AN	TI/BB	09+	SOP16

Popular searches

Model	Manufacturers	lot number	encapsulation	illustrate
VGE1TS181900L	SOURIAU-SUNBANK	24+	connector	Circular MIL Spec Backshells BACKSHELL SZ18
KEYSTONE26	Keystone Electronics	24+	connector	EYELET 0.187" BRASS TIN PLATED
KPSE06E14-19SA206	ITT	24+	connector	Conn Circular SKT 19 POS Crimp ST Cable Mount 19 Terminal 1 Port
KPSE06J14-19P	ITT	24+	connector	Circular MIL Spec Connector KPSE 19C 19#20 PIN PLUG
W-1-005-4STUD	T&M	24+	DIP	SERIES W - Stud Input - 4 Stud Type
ABBH2214SDAM	AB Connectors	2024+	connector	Connector tailpipe
C193A/24EV-U1	Schaltebao	25+	DIP	Voltage 1100v electric current 50A contactor/advantage channel fast delivery
C195A/24EC-U2	Schaltebao	25+	DIP	Contactor/Advantage channel fast delivery
D-U204-E	Mors Smitt	24+	DIP	Instantaneous relays
PW620-18d/2S/R/KS135	FSG	24+	DIP	Stellungsferngeber position sensor potentiometer
ST1-DC12V-F	Panasonic Electronic Components	24+	DIP	Power Relay 12VDC 5DC/8AAC SPST-NO/SPST-NC(31mm 14mm 11.3mm) THT
MER1S1505SC	Murata Power Solutions	24+	DIP	DC DC CONVERTER 5V 1W
P783-Q24-S5-S	CUI Inc	24+	DIP	DC DC CONVERTER 5V 15W
9001-18321C00A	Oupiin	24+	connector	DIN41612 Half R Female 48 Pin
9001-18481C00A	Oupiin	24+	connector	DIN41612 Half R Female 48 Pin
CIR013106T01031819SCNP0406	ITT Interconnect Solutions	2023+	connector	Standard Circular Connector
CIR013106T01031819SCYP0406	ITT Interconnect Solutions	24+	connector	Standard Circular Connector
110IMX35D12D12-8G	Bel Power Solutions	24+	Relays	DC DC CONVERTER 12V 12V 12V 35W
SF400-1F	France Leach	24+	Relays	RAILWAY SOCKET BASE - H MOUNTING STYLE
UTS6JC10E6S	SOURIAU-SUNBANK	23+	connector	CONN PLUG FMALE 6P GOLD SLDR CUP

TI brand product recommendation

Model	Manufacturers	lot number	encapsulation	illustrate
UC3842A	TI	10+	14SOIC, 16SOIC, 8PDIP, 8SOIC	Current-mode PWM controller
UC3842	TI	10+	14SOIC, 8PDIP, 8SOIC	Current-mode PWM controller
UC3841	TI	10+	18PDIP, 18SOIC	Programmable offline PWM controller
UC3827-2	TI	10+	24PDIP, 24SOIC	Drop current/voltage feed push-pull PWM controller
UC3827-1	TI	10+	24PDIP, 24SOIC	Drop current/voltage feed push-pull PWM controller
UC3825B	TI	09+	16PDIP, 16SOIC	High-speed PWM controller
UC3825A	TI	08+	16PDIP, 16SOIC, 20PLCC	High-speed PWM controller
UC3825	TI	09+	16PDIP, 16SOIC, 20PLCC	High-speed PWM controller
UC3824	TI	08+	16PDIP, 16SOIC	High-speed PWM controller
UC3823B	TI	09+	16PDIP, 16SOIC	High-speed PWM controller
UC3823A	TI	09+	16PDIP, 16SOIC	High-speed PWM controller
UC3823	TI	09+	16PDIP, 16SOIC, 20PLCC	High-speed PWM controller
UC3527B	TI	08+	16PDIP	Regulated pulse width modulator
UC3527A	TI	10+	16PDIP	Regulated pulse width modulator
UC3526A	TI	08+	18PDIP, 18SOIC, 20PLCC	Regulated pulse width modulator
UC3526	TI	09+	18PDIP, 18SOIC	Regulated pulse width modulator
UC3525B	TI	09+10+	16PDIP, 16SOIC	Regulated pulse width modulator
UC3525A	TI	10+	16PDIP, 16SOIC, 20PLCC	Regulated pulse width modulator
UC3524A	TI	10+	16PDIP, 16SOIC	Advanced regulated pulse width modulator
UC3524	TI	10+	16PDIP, 16SOIC	Advanced regulated pulse width modulator