(INA203 - INA205) Unidirectional Measurement Current-Shunt Monitor

Burr Brown Products from Texas Instruments INA 203 INA2 03 INA 203 INA203 INA204 INA205 SBOS393 – MARCH 2007 Unidirectional Measurement Current-Shunt Monitor with Dual Comparators FEATURES • • COMPLETE CURRENT SENSE SOLUTION DUAL COMPARATORS: – Comparator 1 with Latch – Comparator 2 with Optional Delay COMMON-MODE RANGE: –16V to +80V HIGH ACCURACY: 3.5% (max) Over Temperature BANDWIDTH: 500kHz QUIESCENT CURRENT: 1.8mA PACKAGES: SO-14, TSSOP-14, MSOP-10 DESCRIPTION The INA203, INA204, and INA205 are a family of unidirectional, current-shunt monitors with voltage output, dual comparators, and voltage reference. The INA203, INA204, and INA205 can sense drops across shunts at common-mode voltages from –16V to +80V. The INA203, INA204, and INA205 are available with three output voltage scales: 20V/V, 50V/V, and 100V/V, with up to 500kHz bandwidth. The INA203, INA204, and INA205 also incorporate two open-drain comparators with internal 0.6V references. On 14-pin versions, the comparator references can be overridden by external inputs. Comparator 1 includes a latching capability, and Comparator 2 has a user-programmable delay. 14-pin versions also provide a 1.2V reference output. The INA203, INA204, and INA205 operate from a single +2.7V to +18V supply. They are specified over the extended operating temperature range of –40°C to +125°C. INA203-INA205 VS OUT 14 VIN+ 13 VIN1.2V REF 12 1.2V REF OUT 11 CMP1 OUT 10 CMP2 OUT 9 8 SO-14, TSSOP-14 CMP2 DELAY CMP1 RESET CMP1 IN+ CMP2 IN+ GND 1 2 3 4 5 0.6V REF MSOP-10 10 VIN+ 9 8 7 6 VINCMP1 OUT CMP2 OUT CMP1 RESET • • • • • • • • • • • • APPLICATIONS NOTEBOOK COMPUTERS CELL PHONES TELECOM EQUIPMENT AUTOMOTIVE POWER MANAGEMENT BATTERY CHARGERS WELDING EQUIPMENT INA203-INA205 VS OUT CMP1 IN-/0.6V REF CMP1 IN+ CMP2 IN+ CMP2 IN-/0.6V REF GND 1 2 3 4 5 6 7 DEVICE INA203 INA204 INA205 GAIN 20V/V 50V/V 100V/V RELATED PRODUCTS FEATURES Variant of INA203–INA205 Comparator 2 polarity Current-shunt monitor with single Comparator and VREF Current-shunt monitor only Current-shunt monitor with split stages for filter options PRODUCT INA206–INA208 INA200–INA202 INA193–INA198 INA270–INA271 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2007, Texas Instruments Incorporated INA203 INA204 INA205 SBOS393 – MARCH 2007 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. ORDERING INFORMATION (1) EXTERNAL COMP1 AND COMP2 REF INPUTS X X X X X X INTERNAL COMP1 AND COMP2 0.6V REF X X X X X X X X X X X X X X X X X X X COMP2 DELAY PIN X PRODUCT INA203 GAIN 20V/V PACKAGELEAD SO-14 (2) MSOP-10 TSSOP-14 (2) SO-14 (2) PACKAGE DESIGNATOR D DGS PW D DGS PW D DGS PW PACKAGE MARKING INA203A BQN INA203A INA204A BQO INA204A INA205A BQP INA205A 1.2V REF OUT X INA204 50V/V MSOP-10 TSSOP-14 (2) SO-14 (2) INA205 100V/V MSOP-10 TSSOP-14 (2) (1) (2) For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. Available Q3, 2007. ABSOLUTE MAXIMUM RATINGS (1) VALUE Supply Voltage, V+ Current-Shunt Monitor Analog Inputs, VIN+and VIN–: Differential (VIN+) – (VIN–) Common-Mode Comparator Analog Input and Reset Pins Analog Output, Out Pin Comparator Output, Out Pin VREF and CMP2 Delay Pin Input Current Into Any Pin Operating Temperature Storage Temperature Junction Temperature ESD Ratings: Human Body Model (HBM) Charged Device Model (CDM) (1) 4000 1000 V V –18 to +18 –16 to +80 GND – 0.3 to (V+) + 0.3 GND – 0.3 to (V+) + 0.3 GND – 0.3 to 18 GND – 0.3 to 10 5 –55 to +150 –65 to +150 +150 V V V V V V mA °C °C °C 18 UNIT V Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not supported. 2 Submit Documentation Feedback www.ti.com INA203 INA204 INA205 SBOS393 – MARCH 2007 ELECTRICAL CHARACTERISTICS: CURRENT-SHUNT MONITOR Boldface limits apply over the specified temperature range: TA = –40°C to +125°C. At TA = +25°C, VS = +12V, VCM = +12V, VSENSE = 100mV, RL = 10kΩ to GND, RPULL-UP = 5.1kΩ each connected from CMP1 OUT and CMP2 OUT to VS, and CMP1 IN+ = 1V and CMP2 IN– = GND, unless otherwise noted. INA203, INA204, INA205 CURRENT-SHUNT MONITOR PARAMETERS INPUT Full-Scale Sense Input Voltage Common-Mode Input Range Common-Mode Rejection Ratio Over Temperature Offset Voltage, RTI (1) +25°C to +125°C –40°C to +25°C vs Temperature vs Power Supply Input Bias Current, VIN– Pin OUTPUT (VSENSE ≥ 20mV) Gain: INA203 INA204 INA205 Gain Error Over Temperature Total Output Error (2) Over Temperature Nonlinearity Error (3) Output Impedance, Pin 2 Maximum Capacitive Load OUTPUT (VSENSE < 20mV) (4) INA203, INA204, INA205 INA203 INA204 INA205 INA203, INA204, INA205 VOLTAGE OUTPUT (5) Output Swing to the Positive Rail Output Swing to GND (6) FREQUENCY RESPONSE Bandwidth: INA203 INA204 INA205 Phase Margin Slew Rate Settling Time (1%) NOISE, RTI Output Voltage Noise Density 40 nV/√Hz SR VSENSE = 10mVPP to 100mVPP, CLOAD = 5pF BW CLOAD = 5pF CLOAD = 5pF CLOAD = 5pF CLOAD < 10nF 500 300 200 40 1 2 kHz kHz kHz Degrees V/µs µs VIN– = 11V, VIN+ = 12V VIN– = 0V, VIN+ = –0.5V (V+) – 0.15 (VGND) + 0.004 (V+) – 0.25 (VGND) + 0.05 V V –16V ≤ VCM < 0V 0V ≤ VCM ≤ VS, VS = 5V 0V ≤ VCM ≤ VS, VS = 5V 0V ≤ VCM ≤ VS, VS = 5V VS < VCM ≤ 80V 300 300 0.4 1 2 mV V V V mV RO No Sustained Oscillation VSENSE = 20mV to 100mV VSENSE = 20mV to 100mV VSENSE = 120mV, VS = +16V VSENSE = 120mV, VS = +16V VSENSE = 20mV to 100mV ±0.002 1.5 10 ±0.75 G 20 50 100 ±0.2 ±1 ±2 ±2.2 ±3.5 V/V V/V V/V % % % % % Ω nF dVOS/dT PSR IB TMIN to TMAX VOUT = 2V, VCM = +18V, 2.7V 5 2.5 ±9 100 ±16 VOS VSENSE VCM CMRR VCM = –16V to +80V VCM = +12V to +80V VSENSE = VIN+ – VIN– –16 80 100 100 123 ±0.5 ±2.5 ±3 ±3.5 0.15 (VS – 0.25)/Gain 80 V V dB dB mV mV mV µV/°C µV/V µA CONDITIONS MIN TYP MAX UNIT (1) (2) (3) (4) (5) (6) Offset is extrapolated from measurements of the output at 20mV and 100mV VSENSE. Total output error includes effects of gain error and VOS. Linearity is best fit to a straight line. For details on this region of operation, see the Accuracy Variations section in the Applications Information. See Typical Characteristic curve Positive Output Voltage Swing vs Output Current (Figure 8). Specified by design; not production tested. Submit Documentation Feedback 3 INA203 INA204 INA205 SBOS393 – MARCH 2007 www.ti.com ELECTRICAL CHARACTERISTICS: COMPARATOR Boldface limits apply over the specified temperature range: TA = –40°C to +125°C. At TA = +25°C, VS = +12V, VCM = +12V, VSENSE = 100mV, RL = 10kΩ to GND, and RPULL-UP = 5.1kΩ each connected from CMP1 OUT and CMP2 OUT to VS, unless otherwise noted. INA203, INA204, INA205 COMPARATOR PARAMETERS OFFSET VOLTAGE Offset Voltage Offset Voltage Drift, Comparator 1 Offset Voltage Drift, Comparator 2 Threshold Over Temperature Hysteresis (1), CMP1 Hysteresis (1), CMP2 INPUT BIAS CURRENT (2) CMP1 IN+, CMP2 IN+ vs Temperature INPUT IMPEDANCE Pins 3 and 6 (14-pin packages only) INPUT RANGE CMP1 IN+ and CMP2 IN+ Pins 3 and 6 (14-pin packages only) (3) OUTPUT Large-Signal Differential Voltage Gain High-Level Output Current Low-Level Output Voltage RESPONSE TIME (4) Comparator 1 Comparator 2 RESET RESET Threshold (5) Logic Input Impedance Minimum RESET Pulse Width RESET Propagation Delay Comparator 2 Delay Equation (6) Comparator 2 Delay tD CDELAY = 0.1µF 1.1 2 1.5 3 CDELAY = tD/5 0.5 V MΩ µs µs µF s RL to 5V, CL = 15pF, 100mV Input Step with 5mV Overdrive RL to 5V, CL = 15pF, 100mV Input Step with 5mV Overdrive, CDELAY Pin Open 1.3 1.3 µs µs CMP VOUT 1V to 4V, RL ≥ 15kΩ Connected to 5V VID = 0.4V, VOH = VS VID = –0.6V, IOL = 2.35mA 200 0.0001 220 1 300 V/mV µA mV 0V to VS – 1.5V 0V to VS – 1.5V V V 10 kΩ 0.005 10 15 nA nA TA = –40°C to +85°C TA = –40°C to +85°C TA = +25°C 590 586 –8 8 Comparator Common-Mode Voltage = Threshold Voltage 2 ±2 +5.4 600 610 614 mV µV/°C µV/°C mV mV mV mV CONDITIONS MIN TYP MAX UNIT (1) (2) (3) (4) (5) (6) Hysteresis refers to the threshold (the threshold specification applies to a rising edge of a noninverting input) of a falling edge on the noninverting input of the comparator; refer to Figure 1. Specified by design; not production tested. See the Comparator Maximum Input Voltage Range section in the Applications Information. The comparator response time specified is the interval between the input step function and the instant when the output crosses 1.4V. The CMP1 RESET input has an internal 2MΩ (typical) pull-down. Leaving the CMP1 RESET open results in a LOW state, with transparent comparator operation. The Comparator 2 delay applies to both rising and falling edges of the comparator output. VTHRESHOLD 0.592 0.6 VTHRESHOLD 0.6 0.608 Input Voltage Inpu