MAX1968EUI+ - Maxim Integrated

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

MAX1968EUI+
Manufacturer

Maxim Integrated
ChipWorker Part#

CW37726800
Category

Power Management IC
Package

TSSOP-28
Description

Maxim MAX1968EUI+, MOSFET Power Driver, 4.5A, 3 → 5.5V, Non-Inverting, 28Pin TSSOP
Documentation

Datasheet

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MAX1968EUI+ Specifications

Attribute	Attribute Value

Part Number	MAX1968EUI+
Manufacturer	Maxim Integrated
ChipWorker Part#	CW37726800
Category	Power Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	28 Pin
Case/Package	TSSOP-28
Supply Voltage (DC)	3.00V (min)
Number of Outputs	2 Output
Supply Current	32 mA
Number of Positions	28 Position
Input Bias Current	100 nA
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	3V ~ 5.5V
Supply Voltage (Max)	5.5 V
Supply Voltage (Min)	3 V
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Size-Length	9.8 mm
Size-Width	4.5 mm
Size-Height	4.5 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC

Product Description

The MAX1968EUI+ is a highly integrated and high-efficiency, Switch-mode Driver for Peltier thermoelectric cooler (TEC) modules. Both devices utilize direct current control to eliminate current surges in the TEC. On-chip FETs minimize external components while providing high efficiency. A 500kHz/1MHz switching frequency and a unique ripple cancellation scheme reduce component size and noise. The MAX1968EUI+ operates from a single supply and provides bipolar ±3A output by biasing the TEC between the outputs of two synchronous buck regulators. Bipolar operation allows for temperature control without "dead zones" or other nonlinearities at low load currents. This arrangement ensures that the control system does not hunt when the set point is very close to the natural operating point, requiring a small amount of heating or cooling. An analogue control signal precisely sets the TEC current.
High Accuracy and Adjustability Improves System Performance by Optimizing TEC Operation
Direct Current Control Prevents TEC Current Surges
Ripple Cancellation for Low Noise
No Dead-zone or Hunting at Low-output Current
1% Accurate Voltage Reference
Adjustable TEC Voltage Limit
Separately Adjustable Heating and Cooling Current Limits
ITEC Output Provides Proportional Voltage to TEC Current for Monitoring
High-efficiency Switch-mode Design
On-chip Power MOSFETs Improve Efficiency While Reducing External Components
500kHz/1MHz Switching Frequency
±3A Output Current
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device.

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