Advanced Linear Power Control Regulated Voltage provided Gen
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APW7035
Advanced Linear Power Control
Regulated Voltage provided
General Description
APW7035 integrates controller linear controller well monitoring protection functions into single package which provides controlled power outputs with over-voltage overcurrent protections. controller regulates reference voltage (1.25V) Voltage (2.05V) with synchronous-rectified buck converter. linear controller regulates power Memory Voltage. precision reference voltage-mode control provide static regulation. linear controller drives external N-channel MOSFET provide adjustable voltage. APW7035 monitors output voltages single Power Good signal issued when Voltage within ±10% setting Linear regulator output levels above their undervoltage thresholds. Additional built-in over-voltage protection output uses lower MOSFET prevent output voltages above 115% setting. over-current function monitors output current using voltage drop across upper MOSFET's RDS(ON) eliminating need current sensing resistor. APW7035A/B/C/D support 3-input Digital Analog converter that adjusts synchronousrectified buck converter output from 1.00V 3.20V referenc Table1.
Switching Power Fixed Voltage (1.25V
2.05V) Adjustable Voltage
Linear Regulator FBVDDQ(2.5V) Simple Single-Loop Control Design
Voltage-Mode Control
Excellent Output Voltage Regulation
Output Linear Output Fast Transient Response
High-Bandwidth Error Amplifier Full 100% Duty Ratio Power-Good Output Voltage Monitor Over-Voltage Over-Current Fault Monitors Small Converter Size
Constant Frequency Operation(200kHz) Reduce External Component Count
Applications
Motherboard Power Regulation Computers Low-Voltage Distributed Power Supplies Card Power Regulation Termination Voltage
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. Jul., 2001 www.anpec.com.tw
APW7035
Description
DRIVE PGOOD VSEN2 VAUX UGATE PHASE LGATE PGND OCSET VSEN1 COMP DRIVE VID2 VID1 VID0 VSEN2 VAUX UGATE PHASE LGATE PGND OCSET VSEN1 COMP
APW7035-12/19
APW7035A/B/C/D
Ordering Information
APW7035
Handling Code Temp. Range Package Code Voltage Code Voltage Code 1.25V 2.05V 1.00V~1.35V 1.40V~1.75V 1.80V~2.40V 2.50V~3.20V Package Code Temp. Range Handling Code Tube Tape Reel
Block Diagram
VSEN2 VAUX VSEN1 OCSET
1.10 0.75 1.5V 1.15 INHIBIT SOFT START FAULT LOGIC 28mA ERROR AMP1 COMP1 PWM1 4.5V VDAC DRIVE 200mA
Power-on Reset (POR)
VAUX
0.90
PGOOD
UGATE INHIBIT GATE CONTROL PHASE
LGATE PGND
OSCILLATOR
SYNCH DRIVE
VID0 VID1 VID2
COMP
Copyright ANPEC Electronics Corp. Rev. Jul., 2001
www.anpec.com.tw
APW7035
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
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.
APW7035 Min. Typ. Max. Unit
Symbol Supply Current
Parameter
Test Conditions UGATE, LGATE, DRIVE open Vocset=4.5V Vocset=4.5V Vocset=4.5V Vocset=4.5V
Nominal Supply Current
Power-on Reset Rising Threshold Falling Threshold Rising VAUX Threshold VAUX Threshold Hysteresis Rising VOCSET Threshold Oscillator FOCS VOSC Free Running Frequency Ramp Amplitude Open Open VP-P 10.7 1.26
Copyright ANPEC Electronics Corp. Rev. Jul., 2001
www.anpec.com.tw
APW7035
Electrical Characteristics Cont.
(Recommended operating conditions Unless otherwise noted) Refer Block Simplified Power System Diagrams Typical Application Schematic.
APW7035 Min. Typ. Max. -1.0 1.265 -2.5 +2.5 +1.0 Unit
Symbol
Parameter
Test Conditions
Bandgap Reference VDAC DACOUT Voltage accuracy Bandgap Reference Voltage Bandgap Reference Tolerance Linear Regulators Regulation Output Drive Current VAUX-VDRIVE >0.6V Synchronous Controller Error Amplifier Gain GBWP Gain-Bandwidth Product Slew Rate COMP=10pF Controller Gate Driver IUGATE UGATE Source VCC=12V, VUGATE RUGATE UGATE Sink VUGATE1-PHASE ILGATE LGATE Source VCC=12V, VLGATE RLGATE LGATE Sink VLGATE= Protection VSEN1 Over-Voltage VSEN1 Rising Protection IOCSET OCSET Current Source VOCSET= 4.5VDC Soft Start Current Power Good VSEN1 Upper Threshold VSEN1 Rising VSEN1 Under Voltage VSEN1 Rising VSEN1 Hysteresis Upper /Lower Threshold VPGOOD PGOOD Voltage IPGOOD= -4mA
V/µs
Functional Description
(Pin Provide bias supply this pin. This also provides gate bias charge MOSFETs controlled voltage this monitored Power-On Reset (POR) purposes. DRIVE (Pin Connect this gate external MOSFET. This provides drive FBVDDQ regulator's pass transistor.
Copyright ANPEC Electronics Corp. Rev. Jul., 2001
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APW7035
Functional Description cont.
(Pin Connect. (APW7035-12,19) PGOOD (Pin PGOOD open drain output used indicate status output voltages. This pulled when synchronous regulator output within ±10% reference voltage Linear regulator outputs below under-voltage thresholds. (APW7035-A,B,C,D) VID2 VID1 VID0 (Pin VID0-2 TTL-compatible input pins 3-bit DAC. logic states these three pins program internal voltage reference (DAC). level sets microprocessor core converter output voltage well corresponding PGOOD thresholds. (APW7035-A,B,C,D) (Pin shuts down outputs. TLL-compatible logic lebel high signal applied this immediately discharges soft-start capacitor disbling output. VSEN2 (Pin Connect this resistor divider linear regulator (FBVDDQ) output voltage. (Pin Connect capacitor from this ground. This capacitor along with internal 28µA current source sets soft-start interval converter. (Pin Pin12) Connection. VAUX (Pin This provides boost current linear regulator's output drives event bipolar transistors
Copyright ANPEC Electronics Corp. Rev. Jul., 2001
(instead N-channel MOSFETs) employed pass elements. voltage this monitored power-on reset purposes. (Pin Signal ground voltage levels measured with respect this pin. COMP (Pin COMP available external pins converter error amplifier. inverting input error amplifier. Similarly COMP error amplifier output. These pins used compensate voltage-mode control feedback loop synchronous converter. VSEN1 (Pin This connected converter's output voltage. PGOOD comparator circuits this signal report output voltage status over- voltage protection. OCSET (Pin Connect resistor from this drain respective upper MOSFET. This resistor internal 200µA current source upper MOSFET's on-resistance converter over-current trip point. over-current trip cycles soft-start function. voltage this monitored power-on reset (POR) purposes pulling this with open drain device will shutdown PGND (Pin This power ground connection. synchronous converter's lower MOSFET source this pin. LGATE (Pin Connect LGATE converter's lower MOSFET gate. This provides gate drive lower MOSFET.
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APW7035
Functional Description cont.
PHASE (Pin Connect PHASE converter's upper MOSFET source. This represents gate drive return current path used monitor voltage drop across upper MOSFET over-current protection. UGATE (Pin Connect UGATE converter's upper MOSFET gate. This provides gate drive upper MOSFET.
Table1 Output Voltage Program
VID2 VID2 VID1 VID1 VID0 VID0
APW7035-A
1.35V 1.30V 1.25V 1.20V 1.15V 1.10V 1.05V 1.00V
APW7035-C
2.40V 2.30V 2.20V 2.10V 2.00V 1.90V 1.80V
VID2 VID2
VID1 VID1
VID0 VID0
APW7035-B
1.75V 1.70V 1.65V 1.60V 1.55V 1.50V 1.45V 1.40V
APW7035-D
3.20V 3.10V 3.00V 2.90V 2.80V 2.70V 2.60V 2.50V
Simplified Power System Diagram
Linear Controller PWM1 Controller VOUT1 5.0VIN
VOUT2
APW7035
Copyright ANPEC Electronics Corp. Rev. Jul., 2001
www.anpec.com.tw
APW7035
Typical Application Circuit
OCSET PGOOD
220pF
5.0V
330uF 1.2K
10uF
UGATE
APM7313 2.05V
APW7035-12
PHASE 3.3V
APM3055L
VAUX
LGATE
APM7313
330uF
330uF
330uF
PGND DRIVE VENS1
10pF
2.5V
66.7
VENS1
330uF
COMP
0.1uF
2700pF 150K
Copyright ANPEC Electronics Corp. Rev. Jul., 2001
www.anpec.com.tw
APW7035
Package Information
300mil Reference JEDEC Registration MS-013)
h*45
GAUGE PLANE
Millimeters Min. 2.35 0.10 0.33 0.23 Max. 2.65 0.30 0.51 0.32
Variations Variations SO-20 SO-24 SO-28 Min. 12.60 17.70 Max. 13.0 18.11
Inches Min. 0.093 0.004 0.013 0.1043 0.0120 0.020
Variations Min. 0.496 0.599 0.697 Max. 0.512 0.614 0.713 SO-20 SO-24 SO-28
Max. Variations
15.20 15.60
0.0091 0.0125 variations 0.2914 0.299 0.050BSC 0.394 0.010 0.016 0.419 0.029 0.050
variations 7.40 7.60 1.27BSC 10.65 0.25 0.40 0.75 1.27
Copyright ANPEC Electronics Corp. Rev. Jul., 2001
www.anpec.com.tw
APW7035
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
Refolw 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 3°C/second max. /second max. seconds max. seconds seconds +5/-0°C +5/-0°C /second max. minutes max. seconds 215~ 219°C +5/-0°C /second max.
Average ramp-up rate(183°C Peak) Preheat temperature 25°C) Temperature maintained above 183°C Time within actual peak temperature Peak temperature range Ramp-down rate Time 25°C peak temperature
Package Reflow Conditions
pkg. thickness 2.5mm bags 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
Copyright ANPEC Electronics Corp. Rev. Jul., 2001
www.anpec.com.tw
APW7035
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
Tape Reel Dimensions
Application
SOP-20 Application SOP-20
330±1 11.5
1.5+0.1
12.75 ±0.15 1.5+0.25
24.4 +0.2
1.75±
2.5± 0.35±0.013
(mm)
Copyright ANPEC Electronics Corp. Rev. Jul., 2001
www.anpec.com.tw
APW7035
Cover Tape Dimensions
Carrier Width Cover Tape Width 21.3
(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. Jul., 2001
www.anpec.com.tw
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