UCC3808A-2

所属类别：ACDC-和-DCDC-电源
产品名称：低功耗电流模式推挽 PWM
厂商：TI
生产批号：10+
封装：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 UCC3808A is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. Contains all control and drive circuitry required for UCC3808A offline or switching with minimal number of external components, power supply, DC to DC fixed frequency current mode.

The UCC3808A dual-output drive stage is arranged in a push-pull configuration. Half of the oscillators of the two output switches use one switch flip-flop frequency. The dead time between two outputs, typically between 60 nanoseconds and 200 nanoseconds, depends on the values of capacitance and resistance, limiting the duty cycle of less than 50% per output stage.

The UCC3808A series offers a choice of packages, temperature range options, and undervoltage lockout levels.

characteristic

The dual-output drive stage is in a push-pull configuration
Current-sensing discharge transistors to improve dynamic response
Typical starting current of 130μA
Typical operating current of 1 mA
to 1 MHz operation
Internal soft start
On-chip 2-MHz gain bandwidth product error amplifier
Clamping of VDD on the chip
The 500-mA peak source of the output drive stage is capable of current, 1 peak, absorbing current

parameter

	UCC3808A - 2
topology	Boost, step-down, full bridge, half bridge, push-to-pull
Control method	Current mode
Duty Cycle (Max) (%)	50
Frequency (max) (kHz)	1000
On/off of undervoltage lockout threshold (5)	4.3/4.1
Pin/Pack	8PDIP，8SOIC，8TSSOP
(#) Regulated output	2
Operating Temperature Range (°C)	0 to 70

ICs related to UCC3808A-2 include:

Model	Manufacturers	lot number	encapsulation	illustrate
UCC3808AD-1	TI	04+	SOP8	Brand new original
UCC3808AD-2	UNITRODE	01+	SOP-8P	New original stock in stock
UCC3808A-2	TI	10+	8PDIP, 8SOIC, 8TSSOP	Low-power current mode push-pull PWM
UCC3808A-1	TI	10+	8PDIP, 8SOIC, 8TSSOP	Low-power current mode push-pull PWM

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