Blaupunkt GTx 102 High Power- User Manual
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Table of Contents:
- Page 2 – Design Problem; Solution
- Page 3 – Design Schematic; % output voltage from the
- Page 4 – Capacitor Selection; is recommended that the input; Table 3. Recommended Output and Input Capacitors
- Page 5 – Table 4. Recommended Capacitor Manufacturers; Power Dissipation; DISS; External Capacitor Requirements
- Page 6 – Table 5. External Capacitor Selection; Power Dissipation and Junction Temperature; qJA; Regulator Protection
- Page 7 – . An internal timer delays the return; d typ; voltage V; IT–; . This event also reinitializes; References
- Page 8 – IMPORTANT NOTICE
Designer ’s Notepage
SLVA082 - December 1999
1
Powering the TMS320VC5402 Using the TPS60100,
TPS76918, and the TPS3305-18
Shawn T. Workman
Mixed Signal Products
ABSTRACT
This report analyzes a low-cost, low-power supply design utilizing the TPS60100 dc-to-dc
converter, the TPS76918 series regulator, and the TPS3305–18 power-supply supervisor to
power DSP applications.
Contents
Design Problem
2
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Solution
2
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Design Schematic
3
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TPS60100 Charge Pump
3
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Capacitor Selection
4
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Power Dissipation
5
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TPS76918 LDO Voltage Regulator
5
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External Capacitor Requirements
5
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Power Dissipation and Junction Temperature
6
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Regulator Protection
6
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TPS3305-18 Supply Voltage Supervisor
6
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References
7
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List of Tables
1 Recommended Capacitor Values for Low Quiescent-Current Operation
(Pulse-Skip Mode)
4
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2 Recommended Capacitor Values for Low Output-Voltage Ripple Operation
(Constant-Frequency Mode)
4
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3 Recommended Output and Input Capacitors
4
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4 Recommended Capacitor Manufacturers
5
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5 External Capacitor Selection
6
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6 Function/Truth Table
7
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Summary
SLVA082 2 Powering the TMS320VC5402 Using the TPS60100, TPS76918, and the TPS3305-18 Design Problem The TMS430VC5402 is ideally suited for today’s portable applications powered by two alkalineor NiMH batteries. What high efficient, low-cost, compact power management solution producesa 1.8 V DSP core...
SLVA082 3 Powering the TMS320VC5402 Using the TPS60100, TPS76918, and the TPS3305-18 Design Schematic VOUTVOUT FB VINVINSKIP C1+ C1- C2+ C2- COM 3V8 ENABLE PGND PGND SYNC GND PGND GND TPS60100 2.2 µ F 2.2 µ F + - PGND 10 µ F 0.1 µ F 22 µ F 0.1 µ F VOUT NC/FB VINEN TPS76918 GND VDD MR Sense1 Sense2 T...
SLVA082 4 Powering the TMS320VC5402 Using the TPS60100, TPS76918, and the TPS3305-18 Capacitor Selection The TPS60100 requires only four external capacitors. Their values are closely linked to theoutput current capacity, output noise requirements, and mode of operation. Generally, thetransfer capaci...
