UCC3809-1

所属类别：ACDC-和-DCDC-电源
产品名称：经济型初级侧控制器
厂商：TI
生产批号：10+
封装：8MSOP, 8PDIP, 8SOIC, 8TSSOP
库存状态：有库存
库存量：6000
最低订购量：1
详细资料：

Product Introduction

The economical series of low-power integrated circuits such as BCDMOS UCC3809 includes all control and drive circuits for off-line requirements and isolated DC-to-DC fixed-frequency current-mode switching with minimal external component count power supplies. The internal implementation of the undervoltage lockout circuitry includes a user-accessible voltage reference with a start-up current of less than 100μA, logic to ensure lockout operation, a PWM comparator, a totem pole output, and a stage that absorbs or delivers peak current. The output stage, driving N-channel MOSFETs are suitable for low off.

Oscillator frequency and maximum duty cycle programming two resistors, one capacitor. The UCC3809 series also features a full-cycle soft start.

characteristic

User-programmable soft-start with active low downtime
User-programmable maximum duty cycle
Accessible 5V reference
Undervoltage locking
Operates up to 1MHz
0.4A Source/0.8A Sink FET Driver
The low starting current is 100μA

parameter

			UCC3809 - 1
topology			Boost, buck, reverse, forward
Control method			Current mode
Duty Cycle (Max) (%)			70
Frequency (max) (kHz)			1000
On/off of undervoltage lockout threshold (5)			10 / 8
Pin/Pack			8MSOP，8PDIP，8SOIC，8TSSOP
(#) Regulated output			One
Operating Temperature Range (°C)			0 to 70

The ICs associated with UCC3809-1 include:

Model	Manufacturers	lot number	encapsulation	illustrate
TPS3809L30DBVT	TI	N／A	N／A	Single-channel voltage monitoring, low-level reset
UCC3809D-1	UNITRODE	00+	SOP-8P	New original stock in stock
3809-10/TM1030	ROHM	06	TQFP64	Brand new original
UCC3809-2	TI	10+	8MSOP, 8PDIP, 8SOIC, 8TSSOP	Economical primary side controller
UCC3809-1	TI	10+	8MSOP, 8PDIP, 8SOIC, 8TSSOP	Economical primary side controller
TPS3809L30-Q1	TI	10+	SOT23-6	Automotive 3-pin supply voltage monitor
TPS3809L30	TI	10+	3PinSOT-23	3-pin power monitor
TPS3809K33	TI	08+	SOT23-3	3-pin power monitor
TPS3809J25-Q1	TI	10+	3PinSOT-23	Automotive 3-pin supply voltage monitor
TPS3809J25	TI	10+	SOT23-3	3-pin power monitor
TPS3809I50-Q1	TI	10+	TOP-23	Automotive 3-pin supply voltage monitor
TPS3809I50	TI	10+	TOP-23	3-pin power monitor
TPS3809I50DBVR	TI/BB	0744+	SOT223
TPS3809K33DBVR	TI/BB	2005+	SOT-23-5
TPS3809K33DBVR	TI	09+	TSSOP

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UCC3809-1

parameter

The ICs associated with UCC3809-1 include:

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