Power Supply Battery Charger Regulation Control Circuit

MC33341 Power Supply Battery Charger Regulation Control Circuit The MC33341 is a monolithic regulation control circuit that is specifically designed to close the voltage and current feedback loops in power supply and battery charger applications. This device features the unique ability to perform source high−side, load high−side, source low−side and load low−side current sensing, each with either an internally fixed or externally adjustable threshold. The various current sensing modes are accomplished by a means of selectively using the internal differential amplifier, inverting amplifier, or a direct input path. Positive voltage sensing is performed by an internal voltage amplifier. The voltage amplifier threshold is internally fixed and can be externally adjusted in all low−side current sensing applications. An active high drive output is provided to directly interface with economical optoisolators for isolated output power systems. This device is available in 8−lead dual−in−line and surface mount packages. Features http://onsemi.com MARKING DIAGRAMS 8 SOIC−8 D SUFFIX CASE 751 1 33341 ALYW G 1 8 PDIP−8 P SUFFIX CASE 626 1 1 MC33341P AWL YYWWG • • • • • • • • • • Differential Amplifier for High−Side Source and Load Current Sensing Inverting Amplifier for Source Return Low−Side Current Sensing Non−Inverting Input Path for Load Low−Side Current Sensing Fixed or Adjustable Current Threshold in All Current Sensing Modes www.DataSheet4U.com Positive Voltage Sensing in All Current Sensing Modes Fixed Voltage Threshold in All Current Sensing Modes Adjustable Voltage Threshold in All Low−Side Current Sensing Modes Output Driver Directly Interfaces with Economical Optoisolators Operating Voltage Range of 2.3 V to 16 V Pb−Free Packages are Available Drive Output 8 VCC 7 Current Sense Input B/ Voltage Sense Input Voltage Threshold Adjust 6 5 A = Assembly Location L, WL = Wafer Lot Y, YY = Year W, WW = Work Week G or G = Pb−Free Package (Note: Microdot may be in either location) PIN CONNECTIONS Current Sense Input A 1 Current Threshold Adjust 2 8 Drive Output 7 VCC 6 Voltage Threshold Adjust 5 Voltage Sense Input (Top View) Current Sense Input B/ Differential Amp 1.0 Voltage and Current Transconductance Amp/Driver V 1.2 V Compensation 3 GND 4 #1.0 0.2 V Inverting/ Noninverting Amp I Reference ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 17 of this data sheet. 1 Current Sense Input A 2 3 Current Compensation Threshold Adjust This device contains 114 active transistors. 4 GND Figure 1. Representative Block Diagram © Semiconductor Components Industries, LLC, 2006 1 August, 2006 − Rev. 4 Publication Order Number: MC33341/D MC33341 MAXIMUM RATINGS Rating Power Supply Voltage (Pin 7) Symbol VCC VIR Value 16 Unit V V ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á ÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁ Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Voltage Range Current Sense Input A (Pin 1) Current Threshold Adjust (Pin 2) Compensation (Pin 3) Voltage Sense Input (Pin 5) Current Sense Input B / Voltage Threshold Adjust (Pin 6) Drive Output (Pin 8) Drive Output Source Current (Pin 8) −1.0 to VCC ISource RqJA 50 mA Thermal Resistance, Junction−to−Air P Suffix, DIP Plastic Package, Case 626 D Suffix, SO−8 Plastic Package, Case 751 Operating Junction Temperature (Note 1) Storage Temperature °C/W 100 178 TJ −25 to +150 −55 to +150 °C °C Tstg NOTE: ESD data available upon request. Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. Tested ambient temperature range for the MC33341: Tlow = −25°C, Thigh = +85°C. ELECTRICAL CHARACTERISTICS (VCC = 6.0 V, TA = 25°C, for min/max values TA is the operating junction temperature range that applies (Note 1), unless otherwise noted.) Characteristic CURRENT SENSING (Pins 1, 2, 6) Symbol Min Typ Max Unit ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ High−Side Source and Load Sensing Pin 1 to Pin 6 (Pin 1 >1.6 V) Internally Fixed Threshold Voltage (Pin 2 = VCC) TA = 25°C TA = Tlow to Thigh Externally Adjusted Threshold Voltage (Pin 2 = 0 V) Externally Adjusted Threshold Voltage (Pin 2 = 200 mV) Low−Side Load Sensing Pin 1 to Pin 4 (Pin 1 = 0 V to 0.8 V) Internally Fixed Threshold Voltage (Pin 2 = VCC) TA = 25°C TA = Tlow to Thigh Externally Adjusted Threshold Voltage (Pin 2 = 0 V) Externally Adjusted Threshold Voltage (Pin 2 = 200 mV) Vth(I HS) mV 187 183 − − 197 − 10 180 207 211 − − ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á Vth(I LS+) mV ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á Current Sense Input A (Pin 1) Input Bias Current, High−Side Source and Load Sensing (Pin 2 = 0 V to VPin 6 V) Input Bias Current, Low−Side Load Sensing (Pin 2 = 0 V to 0.8 V) Input Resistance, Low−Side Source Return Sensing (Pin 2 = −0.6 V to 0 V) IIB(A HS) − − − 40 10 10 − − − mA IIB(A LS+) nA Rin(A LS−) IIB(B) kW Current Sense Input B/Voltage Threshold Adjust (Pin 6) Input Bias Current High−Side Source and Load Current Sensing (Pin 6 > 2.0 V) Voltage Threshold Adjust (Pin 6 < 1.2 V) Current Sense Threshold Adjust (Pin 2) Input Bias Current − − − − 20 100 10 − − − − mA nA nA IIB(I th) gm(I) Transconductance, Current Sensing Inputs to Drive Output 6.0 mhos Low−Side Source Return Sensing Pin 1 to 4 (Pin 1 = 0 V to −0.2 V) Internally Fixed Threshold Voltage (Pin 2 = VCC) TA = 25°C TA = Tlow to Thigh Externally Adjusted Threshold Voltage (Pin 2 = 0 V) Externally Adjusted Threshold Voltage (Pin 2 = 200 mV) Vth(I LS−) mV −195 −193 − − −201 − −10 −180 −207 −209 − − 194 192 − − 200 − 10 180 206 208 − − http://onsemi.com 2 MC33341 ELECTRICAL CHARACTERISTICS (VCC = 6.0 V, TA = 25°C, for min/max values TA is the operating junction temperature range that applies (Note 1), unless otherwise noted.) ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ DIFFERENTIAL AMPLIFIER DISABLE LOGIC (Pins 1, 6) Logic Threshold Voltage Pin 1 (Pin 6 = 0 V) Enabled, High−Side Source and Load Current Sensing Disabled, Low−Side Load and Source Return Current Sensing V Vth(I HS) Vth(I LS) Vth(V) − − ≥1.7 ≤1.3 − − VOLTAGE SENSING (Pins 5, 6) Positive Sensing Pin 5 to Pin 4 Internally Fixed Threshold Voltage TA = 25°C TA = Tlow to Thigh Externally Adjusted Threshold Voltage (Pin 6 = 0 V) Externally Adjusted Threshold Voltage (Pin 6 = 1.2 V) Voltage Sense, Input Bias Current (Pin 5) 1.186 1.174 − − − − 1.210 − 40 1.175 10 7.0 1.234 1.246 − − − − V V mV V nA Characteristic Symbol Min Typ Max Unit ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Á Á Á Á Á ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ