AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps 1. Functional Description The AMG-PU005 has both N-channel and P-channel output drivers, a buck and linear regulator and two OP-AMPs. It is highly suitable as a supply and output stage for many applications such as MCU power stage, I/O and sensor interface. 2. Features Supply voltage: 5VDC...36VDC 5V/20mA linear regulator Adjustable fix frequency buck regulator (8V...34V) 100mA P-channel and N-channel over-current & short-circuit protected open drain outputs 2 LED current sinks 2mA 2 operational amplifiers Buck & linear regulator may be connected parallel or in a series Package: QFN24 – Body size: 4mm x 4mm x 0.85mm RoHS compliant 3. Application Inductive Proximity Sensor Optical Switch Sensor Preamplifier LED Driver DC Motor Control HV Preamplifier Level Shifter UART – RS232 Converter Monoflop WDT and VDD Monitor Oscillator Over current and temperature protection Audio Amplifier MCU power stage, I/O and sensor interface AMG-PU005 Revision: B 9. Nov. 2012 © All rights reserved Page 1 of 14 AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps 3.1. Example Application Schematic FB VL VDD RSET 5V Linear Reg. Band gap Surge Prot. LX Buck Reg. VS VP AMG-PU005 / AMGxxxx R104 Start up HVPS HVG Temp UVLO DP IN1 IN2 IN3 IN4 LS Output EncSel Control 2 PD OCP Surge Prot. OCP Surge Prot. DN ND VS/VL/VDD D1 Bonding Option or Fuse D2 GND PGND OA1P OA1N OA2P OA1O OA2N OA2O Figure 1: PU005 with basic external circuitry AMG-PU005 Revision: B 9. Nov. 2012 © All rights reserved Page 2 of 14 AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps Table of Contents 1.Functional Description........................................................................................................... 1 2.Features................................................................................................................................. 1 3.Application............................................................................................................................. 1 3.1.Example Application Schematic............................................................................................... 2 4.Block Diagram....................................................................................................................... 4 5.Block Descriptions................................................................................................................. 5 5.1.Output Control - Logic Table.....................................................................................................5 5.2.Over Current Protection (OCP) Block...................................................................................... 5 5.3.Level Shifter (LS)...................................................................................................................... 5 5.4.High Voltage Power Supply (HVPS)........................................................................................ 5 5.5.Under Voltage Lock Out (UVLO).............................................................................................. 5 5.6.Over-Temperature Protection Block (Temp).............................................................................5 5.7.Buck Regulator......................................................................................................................... 5 5.8.5V Linear Regulator................................................................................................................. 6 5.9.Open Drain Drivers................................................................................................................... 6 5.10.LED Current-Sink Blocks........................................................................................................6 5.11.OP-Amp Blocks...................................................................................................................... 6 6.Pinning................................................................................................................................... 6 7.Absolute Maximum Ratings................................................................................................... 8 8.Electrical Characteristics........................................................................................................ 8 8.1.Operational Range................................................................................................................... 8 8.2.DC Characteristics................................................................................................................... 9 8.3.AC Characteristics.................................................................................................................. 10 8.4.Application Notes.................................................................................................................... 11 9.IC-Package.......................................................................................................................... 12 9.1.QFN24 – Quad Flat No-leads Package, 24 leads, RoHS compliant......................................12 10.IC-Marking......................................................................................................................... 13 11.Ordering Information.......................................................................................................... 13 12.Notes and Cautions........................................................................................................... 13 12.1.ESD Protection..................................................................................................................... 13 12.2.Storage conditions................................................................................................................ 14 13.Disclaimer.......................................................................................................................... 14 14.Contact Information............................................................................................................ 14 AMG-PU005 Revision: B 9. Nov. 2012 © All rights reserved Page 3 of 14 AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps 4. Block Diagram VL VDD FB 5V Linear Reg. LX Buck Reg. VS AMG-PU005 RSET Band gap Start up HVPS HVG Temp UVLO DP IN1 IN2 IN3 IN4 LS Output OCP OCP Control DN 2 D1 D2 GND PGND OA1P OA1N OA2P OA1O OA2N OA2O Figure 2: Block Diagram AMG-PU005 Revision: B 9. Nov. 2012 © All rights reserved Page 4 of 14 AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps 5. Block Descriptions 5.1. Output Control - Logic Table Inputs IN1 IN2 Outputs IN3 IN4 LS HS LD1 LD2 1 ON 0 OFF 1 ON 0 OFF 1 ON 0 OFF 1 ON 0 OFF 5.2. Over Current Protection (OCP) Block The OCP block prevents the N- and P-Driver open drain outputs from driving disruptive currents. 5.3. Level Shifter (LS) Internal level shifter to translate switching signals from the low voltage domain to the high voltage domain. It is dedicated to drive the open drain P-Driver gate. 5.4. High Voltage Power Supply (HVPS) The HVPS supplies the level shifter block with the high voltage needed to drive the open drain P-Driver gate. It supplies even the N-Driver's protection circuit and the buck regulator's driver stage. 5.5. Under Voltage Lock Out (UVLO) The UVLO block detects under-voltage events on VDD and disables the outputs in case of such event. This prevents the IC from under-voltage driven malfunctions. 5.6. Over-Temperature Protection Block (Temp) The Temp block prevents the IC from thermal overload. In case of such overload the outputs will be switched off. 5.7. Buck Regulator This block allows to build an efficient step-down DC-DC converter. Depending on the load it supports continuous current mode, discontinuous current mode and cycle skipping mode. The Buck Regulator is over-current and short circuit protected. AMG-PU005 Revision: B 9. Nov. 2012 © All rights reserved Page 5 of 14 AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps 5.8. 5V Linear Regulator The 5V Linear Regulator is a shunt regulator which can be used to generate about 5V from voltages up to 36V. It is over-current and short circuit protected. 5.9. Open Drain Drivers The AMG-PU005 has got a N-Channel and P-Channel Driver with 100mA output current driving capability each. Both Drivers are built in Open Drain configuration. The drivers are over-current and over-temperature protected. 5.10. LED Current-Sink Blocks The current sink blocks are dedicated to drive LEDs from a supply voltage (5-36V) with a current of 2mA each. 5.11. OP-Amp Blocks The general purpose OP-Amp blocks allow the customer to built own I/O interfaces. The OPAmps provide a rail-to-rail input and output. 6. Pinning PIN# Symbol Description 1 VDD Linear regulator output and decoupling output 2 VL Linear regulator input voltage 3 HVG HV Decoupling 4 LX Buck regulator output 5 VS Supply voltage 6 DP Open drain output of P-Driver 7 DN Open drain output of N-Driver 8 PGND Power Ground 9 D1 LED current sink input 1 10 D2 LED current sink input 2 11 GND Analog GND 12 RSET Bias Current Set Resistor 13 OA1O OP-AMP 1 output 14 OA1N Inverting input of OP-AMP 2 15 OA1P Non inverting input of OP-AMP 1 16 OA2P Non inverting input of OP-AMP 2 17 OA2N Inverting input of OP-AMP 2 18 OA2O OP-AMP 2 output AMG-PU005 Revision: B 9. Nov. 2012 © All rights reserved Page 6 of 14 AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps Logic Input 20 IN2 Logic Input 21 IN3 Logic Input 22 IN4 Logic Input 23 n.c. Not connected 24 FB Buck regulator feed back input IN4 IN1 IN1 IN2 19 IN3 Description n.c. Symbol FB PIN# 19 1 OA2O VL OA2N PU005 VDD HVG LX OA2P OA1P RSET 7 DN Center Pad = GND GND OA1O 13 D2 DP D1 OA1N PGND VS Top View Figure 3: QFN24 Pinout AMG-PU005 Revision: B 9. Nov. 2012 © All rights reserved Page 7 of 14 AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps 7. Absolute Maximum Ratings The Absolute Maximum Ratings may not be exceeded under any circumstances. # Symbol Parameter Min 1 VVS Supply voltage 2 Vpin_hv Maximum voltage at pins DP, DN, D1, D2, LX, VL, HVG (high voltage pins) 3 VVDD Maximum analog voltage supply (if applied from external) 4 Vpin_lv Maximum voltage at all other pins (low voltage pins) 5 IDN, IDP Drain output current 100 mA 6 IBO Buck regulator output current for external loads 50 mA 7 IVDD Linear regulator output current for external loads 25 mA 8 Tstg Storage temperature range (see chapter 14.2) -55 150 °C 9 TJ Junction temperature -55 150 °C 10 VESD ESD Protection Test voltage (HBM, MIL-STD-883D, Method 3015.7 class 2) 1) -2000 2000 V -0.3 -0.3 Max Unit 37.8 V VS+0.3 V 5.5 V VVDD+0.3 V Note: 1) ESD test condition valid for any pin without external protection circuitry 8. Electrical Characteristics 8.1. Operational Range # Symbol Parameter Min Max Unit 1 VVS,BS Supply voltage range using buck and linear regulator 7.5 36 V 2 VVS,SO Supply voltage range using linear regulator only 5.75 36 V 3 VVS,LX Supply voltage range using buck regulator only 6.5 36 V 4 VVDD Analog supply voltage range if applied externally 4.5 5.5 V 5 Ta Ambient operating temperature -25 85 °C 6 fsw I/O switching frequency 400 600 kHz AMG-PU005 Revision: B 9. Nov. 2012 © All rights reserved Page 8 of 14 AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps 8.2. DC Characteristics Unless otherwise specified, the minimum and maximum characteristics contain the spread of values guaranteed within the specified operating conditions. Unless otherwise specified, typical values are given with VVS = 36V, TJ = 25°C # Symbol Parameter Conditions Min Typ Max Unit 1 mA General Parameters 1 IVS1 Supply current w/o external loads, with buck regulator in steady state VVS=36V 2 IVS2 Supply current w/o external loads, buck regulator deactivated VVS=36V 3 VRSET Bias current reference voltage 260 μA 1.25 V Buck Regulator 4 VVL Output voltage range (adjustable by external resistor divider) VVS≥10V ILoadExt B=40mA 5 VDrop B Saturation voltage drop IloadextB=40mA 6 VFB 7 4.75 8 VVS-2 V 2 V Reference voltage 2.5 V VFB_OV Overvoltage lockout 2.75 V 8 IBUCK Operating current TBD mA 9 VFB_BOFF Buck switch off input voltage VFB < VFB_OV 3.5 VDD V 5 5.25 V 5V Linear Regulator 10 VVDD Output voltage 6V≤VVL≤16V ILoadExt S=20mA 4.75 11 VVDDsat Output voltage saturated 5.5V≤VVL≤6.5V ILoadExt S=20mA VVL-1 12 VDrop S Saturation voltage drop ILoadExt S=20mA V 1 V Open Drain Drivers (FETs) 13 VDrop DP P-channel RDSon voltage drop VVS=36V IloadP=-100mA 1 V 14 VDrop DN N-channel RDSon voltage drop VVS=36V IloadN=100mA 1 V 2.2 mA VVDD0.5 V LED current sinks 15 IDx LED Driver constant current sink VDx=36V 1.8 2 OP-AMPs 16 VIN,OAx OP-AMP input voltage range 17 VIN.OFFS Input Offset voltage 18 IIN,OAx OP-AMP input current 19 VOUT,OAx OP-AMP output voltage range 20 IOUT,OAx OP-AMP output current driving capability VOUT,C=VVDD/2 AMG-PU005 Revision: B 0.5 IOUT=0uA IOUT=±100uA 9. Nov. 2012 10 15 0 © All rights reserved mV 200 nA VVDD V ±1 mA Page 9 of 14 AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps # Symbol Parameter Conditions Min Typ Max Unit Logic inputs 21 IIN_H Logic HIGH input current VVDD=4.5~5.5V -0.1 0.1 uA 22 IIN_L Logic LOW input current VVDD=4.5~5.5V -50 -10 uA 23 VIN,L Logic LOW input voltage 0 0.3* VVDD V 24 VIN,H Logic HIGH input voltage 0.5* VVDD VVDD V 8.3. AC Characteristics Unless otherwise specified, the minimum and maximum characteristics contain the spread of values guaranteed within the specified operating conditions and the technology process parameter range. Unless otherwise specified, typical values are given with VVS = 36V, TJ = 25°C # Symbol Parameter Conditions Min Typ Max Unit Buck regulator 1 fsw Output switching frequency 2 DC Duty Cycle 500 kHz 95 % OP-Amps 3 fT Transit frequency Open loop 4 gvmax Max voltage gain Open loop 5 gv Voltage gain Open loop; 10kHz 6 CMRR Common mode rejection ratio 7 PSRR 8 MPH AMG-PU005 2.8 MHz 105 dB 40 49.5 dB 10kHz TBD -71 dB Power supply rejection ratio 10kHz TBD -51.3 dB Phase Margin open loop (fT) 72.7 deg Revision: B 9. Nov. 2012 1 © All rights reserved Page 10 of 14 AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps 8.4. Application Notes 8.4.1. Supply concepts The AMG-PU005 can be used with different supply strategies and ranges. It contains a buck regulator and a linear regulator. The minimum voltage drops of the regulators to be considered are: - Buck regulator: VDROPB=2V (to be adjusted by external resistor divider) - Linear regulator: VDROPL=1V (in case of saturation, VVL≤6V). Thus none or one or both regulators may be used (see operational voltage range limitations). VL VDD 5V Linear Reg. VL VDD FB 5V Linear Reg. VS VP Surge Prot. VS VP Surge Prot. LX Buck Reg. VP Surge Prot. LX Buck Reg. FB VS LX Buck Reg. 5V Linear Reg. VL VDD FB Surge Prot. LX Buck Reg. 5V Linear Reg. VL VDD FB VS VP a) Supply concept using buck and linear regulator b) Supply concept using buck only c) Supply concept using linear regulator only d) Supply concept using neither buck nor linear regulator (5V external supply Figure 4: Different supply concepts overview The buck regulator is able to drive about 40mA external load in total. If it has to supply the linear regulator the maximum external load current will be reduced by the load of the linear regulator (max. 20mA). The buck regulator's external coil should be larger than 220uH. AMG-PU005 Revision: B 9. Nov. 2012 © All rights reserved Page 11 of 14 AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps 8.4.2. Surge Protection Pins which are subject to surges need to be adequately protected by external protection devices and appropriate PCB layout. Device functionality might get interrupted during surges. Alpha microelectronics could give you some layout and circuitry guidelines for good surge protection. 9. IC-Package 9.1. QFN24 – Quad Flat No-leads Package, 24 leads, RoHS compliant SYMBOL AMG-PU005 Dimensions in mm, angles in deg MIN NOM MAX A 0.80 0.85 0.90 A1 0 0.010 0.030 A3 - 0.20 - b 0.18 0.23 0.28 D 3.95 4.00 4.03 D1 - 2.60 - E 3.95 4.00 4.03 E1 - 2.60 - Revision: B 9. Nov. 2012 © All rights reserved Page 12 of 14 AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps e - 0.50 - L 0.35 0.4 0.45 Θ -12 - 0 ccc - 0.08 - M - - 0.05 10. IC-Marking Top Marking by Laser PU005 yyww ******* Date Code Lot Number 11. Ordering Information AMG-PU005-IQN24R (QFN24, Tape & Reel) 12. Notes and Cautions 12.1. ESD Protection The Requirements for Handling Electrostatic Discharge Sensitive Devices are described in the JEDEC standard JESD625-A. Please note the following recommendations: When handling the device, operators must be grounded by wearing a for the purpose designed grounded wrist strap with at least 1MΩ resistance and direct skin contact. Operators must at all times wear ESD protective shoes or the area should be surrounded by for ESD protection intended floor mats. Opening of the protective ESD package that the device is delivered in must only occur at a properly equipped ESD workbench. The tape with which the package is held together must be cut with a sharp cutting tool, never pulled or ripped off. Any unnecessary contact with the device or any unprotected conductive points should be avoided. Work only with qualified and grounded tools, measuring equipment, casing and workbenches. Outside properly protected ESD-areas the device or any electronic assembly that it may be part of should always be transported in EGB/ESD shielded packaging. AMG-PU005 Revision: B 9. Nov. 2012 © All rights reserved Page 13 of 14 AMG-PU005 Analog System Base Chip, I/O PowerStage, OP-Amps 12.2. Storage conditions The AMG-PU005 corresponds to moisture sensitivity classification ML2 , according to JEDEC standard J-STD-020, and should be handled and stored according to J-STD-033. 13. Disclaimer Information given in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed for the consequences of its use nor for any infringement of patents or other rights of third parties that may result from its use. The values stated in Absolute Maximum Ratings may under no circumstances be exceeded. No warranty is given for use in life support systems or medical equipment without the specific written consent of alpha microelectronics gmbh. For questions regarding the application please contact the publisher. The declared data are only a description of the product. They are not guaranteed properties as defined by law. Examples are given without obligations and cannot give rise to any liability. Reprinting of this data sheet – or any part of it – is not allowed without the license of the publisher. Data sheets are subject to change without any notice. 14. Contact Information This data sheet is published by alpha microelectronics gmbh. To order samples or inquire information please contact: alpha microelectronics gmbh Im Technologiepark 1 15236 Frankfurt (Oder) Germany [email protected] www.alpha-microelectronics.de +49-335-557-1750 (telephone) +49-335-557-1759 (fax) © All rights reserved. AMG-PU005 Revision: B 9. Nov. 2012 © All rights reserved Page 14 of 14