Advanced Linear Power Controller Operates from input supply Regul
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APW7055
Advanced Linear Power Controller
Operates from input supply Regulated Voltage provided Standard Buck Switching Power VMEM
(2.5V)
General Description
APW7055 provides power control protections output voltages applications. integrates controller source-sink linear controller(LC) source-sink purpose, well monitor protection functions into single package. controller supplies VMEM(2.5V) with standard buck converter. source-sink linear controller regulates VTT(1.25V) power Termination. Additional built-in over-voltage protection (OVP) will started when VMEM output above 115% internal setting(VDAC) function will shutdown upper MOSFET disable output voltage controllers over-current function monitors output current sensing voltage drop across upper MOSFETs rDS(ON) eliminating need current sensing resistor
Linear Controller with Source-Sink Regula
tion VTT(1.25V)
Simple Single-Loop Control Design
Voltage-Mode Control
Excellent Output Voltage Regulation
VMEM Output VMEM ±1.5% Over Tem-per
ature
Output ±25mV Over Temperature
Fast Transient Response
Built-in Feedback Compensation Full 100% Duty Ratio
Over-Voltage Over-Current Fault Monitors Constant Frequency Operation(200kHz) pins, SSOP Package
Description
BOOT UGATE PHASE PGND MEM1 MEM0 OCSET VSEN
Applications
Power Regulation AGP/PCI Graphics Power Regulation SSTL-2 Termination
SOURCE SINK
ANPEC reserves right make changes improve reliability manufacturability without notice, advise customers obtain latest version relevant information verify before placing orders. Copyright ANPEC Electronics Corp. Rev.A.1 Dec., 2001 www.anpec.com.tw
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Ordering Information
7055
Handling Code ange Package Code Voltage Voltage 2.40~2.55V 2.80~2.95V Package Code ange Handling Code 2.60~2.75V 3.00~3.15V
Tape Reel
Block Diagram
CSET
200uA PHASE
Power Reset
115%
VSEN
illa
URCE
Absolute Maximum Ratings
Symbol TSTG Supply Voltage Input Output Voltage Operating Ambient Temperature Range Junction Temperature Range Storage Temperature Range Soldering Temperature
Parameter
Rating -0.3 +0.3 +150 seconds
Unit
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Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
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Thermal Characteristics
Symbol Parameter Thermal Resistance Free SOIC SOIC (with 3in2 Copper) Value Unit °C/W
Electrical Characteristics
Recommended operating conditions, Unless otherwise noted. Refer Block Simplified Power System Diagrams Typical Application Schematic.
Symbol Supply Current Nominal Supply Current Shutdown Supply Current Rising Threshold Falling Threshold Rising OCSET Threshold Shutdown Input High Voltage Shutdown Input Voltage Free Running Frequency -1.5 -10mV 0.495VIN +10mV -10mV 0.505VIN +10mV =5V,V BOOT =9.5V, UGATE =12V,V BOOT =9.5V, UGATE =5V,V UGATE =12V, UGATE
Parameter
Test Conditions SD=0V, GATE Drive Open SD=5V Vocset=3V Vocset=3V
Min.
7055 Typ. Max.
Unit
Power-on Reset OCSET Oscillator +1.5 Ramp plitude Controller Reference Voltage Voltage Accuracy Input High Voltage Input Voltage Source-Sink Linear Controller SOURCE Source Regulation Voltage SINK ISource Sink Regulation Voltage Source Drive Current 1.26
ISINK Sink Drive Current Controllers Gate Drivers IUGATE UGATE Source
GATE
UGATE Sink
Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
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Electrical Characteristics (Cont.)
Recommended operating conditions, Unless otherwise noted. Refer Block Simplified Power System Diagrams Typical Application Schematic.
Symbol Protection VSEN O.V. trip point (VSEN/V DAC) VSEN O.V. Hysteresis IOCSET Ocset Current Source Soft start Current Vocset=3V VSEN Rising Parameter Test Conditions Min. APW7055 Typ. Max. Unit
Functional Description
(Pin Provide bias supply this pin. This also provides gate bias charge FETs source-sink regulator. voltage monitored Power-On Reset (POR) purposes. (Pin This provides soft start standard buck converter source-sink regulator. Connect capacitor from this ground.This capacitor, along with internal 28uA current source,sets soft-start interval converter preventing outputs from overshoot well limiting input current (Pin shuts down outputs. TTL-compatible, logic level high signal applied this immediately discharges soft-start capacitor,disabling outputs.When re-enabled, undergoes soft-start cycle.Left open, this pulled internal pull-down resistor,enabling operation. SOURCE (Pin Connect upper MOSFET gate drive source-sink regulator. This used drive
Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
upper external MOSFET source regulator. SINK (Pin Connect lower MOSFET gate drive source-sink regulator.This used drive lower external MOSFET sink regulator. (Pin Connect this output source-sink regulator. This provide voltage feedback path source sink regulators. This internally connected negative input source controller, also connected positive input sink controller. (Pin Connect this voltage source. voltages, above 0.5VIN, generated internal resistor divider reference voltage source sink controllers. internal resistor divider provides offset voltage ensure higher sink regulation voltage prevent direct current path through upper lower MOSFETs, damaging MOSFETs. (Pin Signal ground voltage levels sured with respect this voltage protection.
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Functional Description (Cont.)
VSEN (Pin This connected standard buck converters output voltage provide voltage feedback path converter. OVP(Over-Voltage-Protection) comparator circuit this signal monitor output voltage status over-voltage protection. OCSET (Pin Connect resistor (ROCSET from this drain standard buck converters MOSFET. ROCSET, internal 200mA current source (IOCSET MOSFETs on-resistance(rDS(ON)) converters over-current (OC) trip point according following equation: IPEAK
CSET ROCSET rDS(ON)
PGND (Pin This power ground connection.Tie this anode flywheel diode standard buck converters circuit. PHASE (Pin Connect PHASE standard buck converters MOSFET source.This used monitor voltage drop across MOSFET over-cur rent protection. UGATE (Pin Connect this MOSFET gate standard buck converter.This provides gate drive external MOSFET.
BOOT (Pin This provides bias voltage external MOSFET over-current trip cycles soft-start function driver. bootstrap circuit used pump boot voltage enforcing driving capability MEM0-1 (Pin 11-12) MEM0-1 TTL-compatible logic level input pins gate driver improving performance 2-bits DAC.The status these pins MOSFET. ternal reference voltage(VDAC) standard buck converter also sets threshold voltage.Table shows table voltage. Table Table APW7055
Name MEM1 MEM0 VMEM Voltage 2.40 2.45 2.50 2.55
APW7055
Name MEM1 MEM0 VMEM Voltage 2.60 2.65 2.70 2.75
Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
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Table Table APW7055
Name MEM1 MEM0 VMEM Voltage 2.80 2.85 2.90 2.95
APW7055
Name MEM1 MEM0 VMEM Voltage 3.00 3.05 3.10 3.15
Simplified Power System Diagram
7055
Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
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Typical Application Circuit
MEM1 MEM0 4.7u
CSET
Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
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Package Informaion
SSOP-16
GAUGE PLANE
Millimeters Min. 1.350 0.10 0.20 3.75 5.75 Max. 1.75 0.25 0.30 4.05 6.25 1.27
Variations- Variations SSOP-16 Min. 4.75 Max. 5.05
Inches Min. 0.053 0.004 0.008 0.147 0.226 0.016 0.069 0.010 0.012 0.160 0.246 0.050
Variations- Min. 0.187 Max. 0.199 SSOP-16
Max. Variations
variations 0.625 TYP.
variations 0.025 TYP.
variations
variations
Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
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Physical Specifications
Terminal Material Lead Solderability Packaging Solder-Plated Copper (Solder Material 90/10 63/37 SnPb) Meets Specification RSI86-91, ANSI/J-STD-002 Category 1000 devices reel SO-16 2500 devices reel SSOP-16.
Reflow Condition
(IR/Convection Reflow)
Reference JEDEC Standard J-STD-020A APRIL 1999
temperature
Peak temperature 183°C Pre-heat temperature
Time
Classification Reflow Profiles
Convection Convection Average ramp-up rate(183°C Peak) 3°C/second max. seconds Preheat temperature 25°C) seconds Temperature maintained above 183°C Time within actual peak temperature seconds Peak temperature range +5/-0°C +5/-0°C Ramp-down rate /second max. minutes max. Time 25°C peak temperature /second max. seconds 215-219°C +5/-0°C /second max.
Package Reflow Conditions
pkg. thickness 2.5mm bgas Convection +5/-0 215-219 IR/Convection +5/-0 pkg. thickness 2.5mm pkg. volume pkg. thickness 2.5mm pkg. volume Convection +5/-0 +5/-0 IR/Convection +5/-0
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Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
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Reliability test program
Test item SOLDERABILITY HOLT Latch-Up Method MIL-STD-883D-2003 MIL-STD-883D-1005.7 JESD-22-B, A102 MIL-STD-883D-1011.9 MIL-STD-883D-3015.7 JESD Description 245°C 1000 Bias Hrs, 121°C -65°C 150°C, Cycles VHBM 2KV, 200V 10ms 100mA
Carrier Tape Reel Dimensions
Application SSOP-16 Application SSOP-16
330±3
+0.1
+0.25
16.4 +0.3 -0.2
2.5±
3.0±
1.75± 0.3±0.013
10.9 10.8±
(mm)
Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
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Cover Tape Dimensions
Carrier Width Cover Tape Width 13.3 13.3 (mm)
Customer Service
Anpec Electronics Corp. Head Office Li-Hsin Road, SBIP, Hsin-Chu, Taiwan, R.O.C. 886-3-5642000 886-3-5642050 Taipei Branch 137, Lane 235, Chiao Rd., Hsin Tien City, Taipei Hsien, Taiwan, 886-2-89191368 886-2-89191369
Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
www.anpec.com.tw
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