Datasheet Linear Technology LTC2965HDD#PBF

Manufacturer	Linear Technology
Series	LTC2965
Part Number	LTC2965HDD#PBF

100V Micropower Single Voltage Monitor

Datasheets

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PDF, 242 Kb, Revision: C, File uploaded: Oct 25, 2017

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Prices

Packaging

Package	3x3 DFN-8
Package Code	DD
Package Index	05-08-1698

Parametrics

Design Tools	LTspice Model
Export Control	no
Features	Polarity Selection, Selectable Hysteresis
Isupply	7 µA
Minimum Reset Level	3.5 V
Number of Supplies	1
Operating Temperature Range	-40 to 125 °C
Power Fail Warning	no
Power Up/Down Reset	no
Reset Voltage	Adj
Threshold Accuracy	1.4 %
Vs Max	100 V
Watchdog Timer	no

Eco Plan

RoHS

Compliant

Articles

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Simplify Small Solar Systems with Hysteretic Controller &mdash LT Journal
PDF, 122 Kb, File published: Jul 7, 2015
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design ideas Simplify Small Solar Systems* with Hysteretic Controller
Mitchell Lee Battery-based solar power systems in the 10WвЂ“100W range often use a switching
regulator to control battery charge. These have the advantage of high efficiency
and facilitate peak power point tracking, but only at the cost of an inductor, circuit
complexity and noise. As a simpler alternative to a switching regulator, linear
control is feasible in applications up to about 20W. While simple and quiet, linear
charge controllers generate heat, which must be shed by means of a heat sink.
The bulk, cost and assembly complexity of a heat sink somewhat nullify a linear
charge controllerвЂ™s perceived advantages over a switching regulator approach.
A hysteretic controller that simply
connects or disconnects the solar panel
as needed to limit the batteryвЂ™s state
of charge provides an excellent anodyne, one devoid of inductors, complexity, noise and heat sinking.
Both series and shunt hysteretic switch
topologies are possible. A series configuration opens the connection to the solar
panel when the battery has reached its
maximum charging voltage, then reconnects when the battery voltage falls to
a lower threshold. The chief difficulty
with a series configuration is driving the
high side switch, which requires either a
charge pump for an n-channel implementation or a high voltage, high side gate
drive circuit for a p-channel MOSFET.
The preferable shunt arrangement is …

Model Line

Series: LTC2965 (12)

LTC2965CDD#PBF LTC2965CDD#TRPBF LTC2965CMS#PBF LTC2965CMS#TRPBF LTC2965HDD#PBF LTC2965HDD#TRPBF LTC2965HMS#PBF LTC2965HMS#TRPBF LTC2965IDD#PBF LTC2965IDD#TRPBF LTC2965IMS#PBF LTC2965IMS#TRPBF

Manufacturer's Classification

Monitor, Control and Protection > Supervisory Circuits > Single Supply Monitors
Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) System Monitor

Other Names:

LTC2965HDDPBF, LTC2965HDD PBF