TPS65651_15 Datasheet, PDF (1/9 Pages) Texas Instruments – TPS65651 Triple-Output AMOLED Display Power Supply

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TPS65651
SLVSD67 – SEPTEMBER 2015
TPS65651 Triple-Output AMOLED Display Power Supply
1 Features
•1 2.9-V to 4.5-V Input Voltage Range
• Synchronous Boost Converter (AVDD)
– 5.8-V to 7.9-V Output Voltage (programmable)
– 6.1-V Default Output Voltage
– 1% Accuracy
– 80-mA Output Current Capability
– 100-mA Output Current Protection (±20%)
– V_I to V_O and V_O to V_I Isolation
• Synchronous Boost Converter (ELVDD)
– 4.6-V to 5-V Output Voltage (programmable)
– 4.6-V Default Output Voltage
– 0.5% Accuracy
– 300-mA Output Current Capability
– External Output Voltage Sensing Pin for Load
Drop Compensation
– Excellent Line Transient Response
– V_I to V_O and V_O to V_I Isolation
• Synchronous Inverting Buck-Boost Converter
(ELVSS)
– –5.4-V to –1.4-V Output Voltage
(programmable)
– –2.5-V Default Output Voltage
– 1.2% Accuracy at –2.5 V (±30 mV)
– 300-mA Output Current Capability
– V_I to V_O and V_O to V_I Isolation
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Simplified Schematic
VI = 2.9 V to 4.5 V
4.7 H
SW1
OUT1
SNS1
10 F
V(ELVDD)
4.6 V / 300 mA
Enable V(AVDD)
Enable V(ELVDD) / V(ELVSS)
Program device
Enable discharge
4.7 H
10 H
3K10 F
SW2
SW3
EN3
VDDP
VDDA
CTRL
FD
OUT2
OUT3
PGND
GND
CT
2K10 F
10 F
V(ELVSS)
±2.5 V / 300 mA
V(AVDD)
6.1 V / 80 mA
• Single-Wire Digital Interface for Programming
• Short Circuit Protection
• Thermal Shutdown
• Available in 3-mm × 3-mm x 0.75-mm 16-Pin
WQFN Package
2 Applications
• Smartphones
• Small Size Tablets
• Active Matrix OLED Displays ≤ 8"
3 Description
The TPS65651 is designed to drive AMOLED
displays (Active Matrix Organic Light Emitting Diode)
requiring V_(AVDD), V_(ELVDD) and V_(ELVSS). The device
integrates a boost converter for V_(ELVDD), an inverting
buck-boost converter for V_(ELVSS) and a boost
converter for V_(AVDD), which are suitable for battery
operated products. The digital interface control pin
(CTRL) allows programming V_(AVDD), V_(ELVDD) and
V_(ELVSS) in digital steps. The TPS65651 uses a novel
technology enabling excellent line and load
regulation.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS65651
WQFN (16)
3.00 mm x 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Efficiency
100
90
80
70
60
50
40
30
20 _{V(ELVDD) = 4.6 V}
10 ^{V(ELVSS) = 2.5 V}
TOKO DFE252012C-4R7
0
0
50
100
150
200
Output Current (mA)
V_I = 4.5 V
V_I = 3.7 V
V_I = 2.9 V
250
300
D008
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.