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MAX17135
Multi-Output DC-DC Power Supply with VCOM Amplifier and Temperature Sensor for E-Paper Applications
Complete Panel Power Solution for Electrophoretic Displays in Small, 5mm x 5mm, 32-Pin TQFN Package
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Status
Active: In Production.
Description
The MAX17135 is a complete power-management IC for E-paper displays that provides source- and gate-driver power supplies, a high-speed VCOM amplifier, and a temperature sensor.
The source-driver power supplies consist of a boost converter and an inverting buck-boost converter that generates +15V (up to +17V) and -15V (up to -17V), respectively. Both source-driver power supplies can deliver up to 200mA. The positive source-driver supply regulation voltage (VPOS) can be set either by using an I²C interface or by connecting an external resistor-divider. The negative source-driver supply voltage (VNEG) is always tightly regulated to -VPOS within ±50mV.
The gate-driver power supplies consist of regulated charge pumps that generate +22V (up to +40V) and -20V (up to -40V) and can deliver up to 20mA each.
The IC features a VCOM amplifier output whose output voltage is controlled by an internal 8-bit digital-to-analog converter (DAC). The DAC is programmable through an I²C interface and allows small-voltage-step sizes per DAC step.
The IC includes a temperature sensor that provides the ability to read the internal IC temperature and an external panel temperature with the use of an external temperature-sensing diode. Temperature output data is supplied through I²C.
The device is available in a space-saving, 32-pin TQFN package and is specified over the -40°C to +85°C extended temperature range.
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Data Sheet
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An evaluation kit is available: MAX17135EVKIT NOTE: This product uses the following:MAX17135 EVKIT Software
Key Features
- Four Regulated Output Voltages for Source- and Gate-Driver Power Supplies
- VPOS + VNEG = ±50mV Tracking Accuracy
- Measures Internal and Remote Diode Temperature Sensors
- True Shutdown on All Outputs
- 2.7V to 5.5V IN Supply Voltage Range
- Controlled Inrush Current During Soft-Start
- I²C Serial Interface for Temperature Read, Power Output Enable, POS Voltage Regulation Set-Point Adjustment, Power-Up/Power-Down Sequencing Adjustment, and Fault Monitoring
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Applications/Uses
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Key Specifications:
| Multifunction PMICs |
| Part Number |
Primary Topology |
Monitor/Control Features |
DC-DC/Power Features |
LCD/LED/Flash/CCD Features |
Interface Type |
VIN
(V) |
VIN
(V) |
VOUT
(V) |
VOUT
(V) |
Max. IOUT
(A) |
Max. IOUT
(A) |
Oper. Freq.
(kHz) |
Inverting Outputs |
Package/Pins |
Smallest Available Pckg.
(mm2) |
| min |
max |
min |
max |
≥ |
≤ |
max w/pins |
| MAX17135 NEW! |
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| Dynamic V Adj. | | Low Batt./POK Output | | Serial Interface | | Shutdown |
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| Current Limit | | Fixed Freq./PWM | | Internal Pwr. FETs | | Soft Start |
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GPIO |
2.7 |
5.5 |
-26 |
26 |
0.2 |
0.2 |
1000 |
2 |
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26 |
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See All Multifunction PMICs (96)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Simplified Operating Circuit
Notes and Comments
Complete Power-Management Solution for Electrophoretic Displays
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Information Index
Document Ref.: 19-5881
Rev 1;
2012-01-09
This page last modified: 2012-01-09
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