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
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 controller's over-current function monitors output current sensing voltage drop across upper MOSFET`s rDS(ON) eliminating need current sensing resistor
Standard Buck Switching Power VMEM
(2.5V)
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
APW7055
Ordering Information
7055
ange ackage ackage ange Tube Tape Reel
Block Diagram
OCSET
200uA PHASE BOOT
Power Reset
PGND
115%
VSEN
illa
SOURCE
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
APW7055
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 OCSET Oscillator 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 GATE UGATE Sink =12V, UGATE
Parameter
Test Conditions
Min.
7055 Typ. Max.
Unit
SD=0V, GATE Drive Open SD=5V Vocset=3V Vocset=3V
Power-on Reset Falling Threshold Rising Threshold Shutdown Input High Voltage Shutdown Input Voltage +1.5 1.26
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
ISINK Sink Drive Current Controllers Gate Drivers
IUGATE
UGATE Source
Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
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APW7055
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 APW7055 Typ. Max. Unit
Min.
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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APW7055
Functional Description (Cont.)
VSEN (Pin This connected standard buck converter's 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 converter's MOSFET. ROCSET, internal 200mA current source (IOCSET MOSFET's on-resistance(rDS(ON)) converter's over-current (OC) trip point according following equation:
CSET ROCSET rDS(ON)
PGND (Pin This power ground connection.Tie this anode flywheel diode standard buck converter's circuit. PHASE (Pin Connect PHASE standard buck converter's 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 driver. bootstrap circuit used pump boot voltage enforcing driving capability gate driver improving performance MOSFET.
IPEAK
over-current trip cycles soft-start function MEM0-1 (Pin 11-12) MEM0-1 TTL-compatible logic level input pins 2-bits DAC.The status these pins internal reference voltage(VDAC) standard buck converter also sets threshold voltage.Table shows table voltage. Table Table APW7055
APW7055
Name MEM1 MEM0
VMEM Voltage 2.40 2.45 2.50 2.55
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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APW7055
Table Table APW7055 APW7055
Name MEM1 MEM0
VMEM Voltage 2.80 2.85 2.90 2.95
Name MEM1 MEM0
VMEM Voltage 3.00 3.05 3.10 3.15
Simplified Power System Diagram
ource ontroller
7055
Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
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APW7055
Typical Application Circuit
MEM1 MEM0 4.7u
CSET
Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
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APW7055
Package Informaion
SSOP-16
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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APW7055
Physical Specifications
Terminal Material Lead Solderability Solder-Plated Copper (Solder Material 90/10 63/37 SnPb), 100%Sn Meets Specification RSI86-91, ANSI/J-STD-002 Category
Reflow Condition
(IR/Convection Reflow)
ritical Zone
p-up
p-down Preheat
Peak
Classificatin Reflow Profiles
Profile Feature Sn-Pb Eutectic Assembly Large Body Small Body Pb-Free Assembly Large Body Small Body 3°C/second max. 150°C 200°C 60-180 seconds 3°C/second 217°C 60-150 seconds +0/-5°C +0/-5°C 10-30 seconds 20-40 seconds
Average ramp-up rate 3°C/second max. Preheat Temperature (Tsmin) 100°C Temperature (Tsmax) 150°C Time (min max)(ts) 60-120 seconds Tsmax Ramp-up Rate Tsmax Temperature(TL) 183°C Time (tL) 60-150 seconds Peak Temperature(Tp) +0/-5°C +0/-5°C Time within actual Peak 10-30 seconds 10-30 seconds Temperature(tp) Ramp-down Rate 6°C/second max. minutes max. Time 25°C Peak Temperature
Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001
6°C/second max. minutes max.
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Note: temperatures refer topside package. Measured body surface.
APW7055
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
6.95
1.75±0.1 13±0.3
5.5±0.05 21±0.8
4.0±0.1 13.5±0.5
8.0±0.1 2.0±0.2
2.0±0.05 80±1
1.55±0.05 1.55±0.1 12.0±0.3
SSOP-16
0.3±0.05
(mm)
Copyright ANPEC Electronics Corp. Rev. Rev.A.1 Dec., 2001 www.anpec.com.tw
APW7055
Cover Tape Dimensions
Application SOP- Carrier Width Cover Tape Width 21.3 Devices Reel 1000
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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