DS1640+

Voltage - Supply (Vcc/Vdd):	4.5 V ~ 5.5 V
Base Part Number:	DS1640
Supplier Device Package:	16-PDIP
Package / Case:	16-DIP (0.300", 7.62mm)
Operating Temperature:	0°C ~ 70°C (TA)
Fault Protection:	--
Features:	--
Input Type:	Non-Inverting
Rds On (Typ):	67 mOhm
Current - Output (Max):	300mA
Series:	--
Voltage - Load:	3 V ~ 5.5 V
Interface:	On/Off
Output Type:	P-Channel
Output Configuration:	High Side
Ratio - Input:Output:	1:1
Number of Outputs:	4
Switch Type:	Latched Driver
Part Status:	Obsolete
Packaging:	Tube

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The DS1640+ PMIC - Power Distribution Switches and Load Drivers – is an advanced, high-density, dual-channel, low-voltage, low power, 8-bit, voltage controlled PWM device ideal for powering electronic loads and regulating power in a variety of applications.The device enables efficient design for modern electronic systems by providing a simplified and cost-effective solution for controlling and distributing power by means of its two PWM output channels. It utilizes a high-frequency switching smoothing function to reduce inrush current, allowing for two stepped voltage levels and a minimum input-capacitor load, thus ensuring minimal power consumption.The device features a voltage control mode that allows the user to control the PWM output voltage level. This is done by setting the required voltage level in the PWM register and enabling the voltage sensing. The PWM register also allows users to configure the duty cycle of each channel separately. The duty cycle can be adjusted by changing the PWM duty cycle adjustment value, which is based on the input voltage level.The switch frequency of the device is adjustable, enabling users to optimize the power efficiency in closed loop applications. Additionally, the device offers a constant frequency mode for applications without closed loop control. The device also includes a built-in low-dropout (LDO) regulator and voltage supervisor. The LDO regulator is used to power other components in the system, while the voltage supervisor ensures proper system control and reset in case of an irregular condition.The DS1640+ PMIC includes comprehensive diagnostics that support safe and reliable operation of the system. It has two open drain fault signals (FATAL0 and FATAL1) that provide power-on-reset and fault detection. The diagnostics also include an over-temperature circuit with a six-bit thermal limit adjustability. This feature protects the device and other components in the system from thermal overload during fault conditions.The DS1640+ PMIC makes power control easy and cost-effective, enabling designers to create modern, efficient and reliable systems. By leveraging its versatile features and high efficiency, designers can achieve significant cost savings, reduce design complexity and minimize circuit size. The overall result is improved performance and reliability.

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