UC3823

所属类别：ACDC-和-DCDC-电源
产品名称：高速 PWM 控制器
厂商：TI
生产批号：09+
封装：16PDIP, 16SOIC, 20PLCC
库存状态：有库存
库存量：3500
最低订购量：1
详细资料：

Product Introduction

The PWM control IC UC1823 series is ideal for high frequencies for switching power supply applications. Special attention is given to minimize the propagation delay of the amplifier logic circuit by comparing and maximizing the bandwidth and slew rate of errors. The controller is designed for voltage mode systems that feed forward with either current mode or input voltage.

The protection circuitry includes a current-limit comparator, compatible with the TTL shut-off port, and soft-start pins, which will double the maximum duty cycle clamp. The logic is to completely lock the free operation of providing jitter and prohibit multiple pulses from being output. The 800mV hysteresis undervoltage lockout section ensures low start-up current.

characteristic

Suitable for voltage or current mode topologies
The actual operating frequency is 1.0MHz switch @
50ns propagation delay to output
Totem pole output high current (peak of 1.5A)
Wideband error amplifier
Fully locked logic dual-pulse suppression
The pulse is limited by the pulse current
Soft start/max. Duty cycle control
Undervoltage lockout and hysteresis
Low starting current (1.1 milliampere)
Sidebandgap Reference (5.1V ± 1% Included)

parameter

			UC3823
topology			Boost, buck, reverse, forward
Control method			Current mode, voltage mode
Duty Cycle (Max) (%)			100
Frequency (max) (kHz)			1000
On/off of undervoltage lockout threshold (5)			9.2/8.4
Pin/Pack			16PDIP，16SOIC，20PLCC
(#) Regulated output			One
Operating Temperature Range (°C)			0 to 70

The ICs associated with the UC3823 include:

Model	Manufacturers	lot number	encapsulation	illustrate
B32023A3823K000	TDK Epcos	16+	DIP	CAP FILM 0.082UF 10% 300VAC RAD
UC3823Q	UC	05+	PLCC-20	Brand new original
UC3823DWTR	TI	00+	SMD	Original in stock
UC3823BDW	UNITRODE	01+	SOP-16P	New original stock in stock
CY7C63823-SXC	CYPRESS	06+	SOP	Brand new original
TPS3823-50DBVT	TI	05+	SOT23-5	Single-channel voltage monitoring, low-level reset, 1.6-second watchdog timing, manual reset input
BA3823LS	ROHM	94+	JIP	New original stock available
D4382362GF-A67	NEC	02+	QFP100	Brand new original
TPS3823-33DBVT	TI	04+	SOT-23	Single-channel voltage monitoring, low-level reset, 1.6-second watchdog timing, manual reset input
TPS3823-50DBVR	TI	N／A	N／A	Single-channel voltage monitoring, low-level reset, 1.6-second watchdog timing, manual reset input
TPS3823-33QDBVRQ1	TI	04+	SOT235	Brand new original
TPS3823-25DBVR	TI	N／A	N／A	Single-channel voltage monitoring, low-level reset, 1.6-second watchdog timing, manual reset input
HSMP-3823	Agilent	05+	N／A	Brand new original
TPS3823-30DBVT	TI	09+	SOT23-5	Single-channel voltage monitoring, low-level reset, 1.6-second watchdog timing, manual reset input
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
TPS3823-50-Q1	TI	07+	SOP	Automotive power supply voltage monitor with watchdog input and manual reset
TPS3823-50	TI	10+	SOT-153	Supply voltage monitor with watchdog input and manual reset function
TPS3823-33-Q1		TI	07+	Automotive power supply voltage monitor with watchdog input and manual reset

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UC3823

parameter

The ICs associated with the UC3823 include:

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