TSM9938 TOUCHSTONE [Touchstone Semiconductor Inc], TSM9938 Datasheet
TSM9938
Related parts for TSM9938
TSM9938 Summary of contents
Page 1
... For all high-side current-sensing TSM9938 features a wide input common-mode voltage range from 1.6V to 28V. The SOT23 package makes the TSM9938 an ideal choice for pcb-area-critical, accuracy current-sense applications in all battery- powered portable instruments. All TSM9938s are specified for operation over the -40° ...
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... Soldering Temperature (Reflow) ............................ +260°C PART MARKING CARRIER QUANTITY Tape & Reel TADC Tape & Reel Tape & Reel TADA Tape & Reel Tape & Reel TADF Tape & Reel Tape & Reel TADH Tape & Reel ----- 3000 ----- 3000 ----- 3000 ----- 3000 TSM9938DS r1p0 RTFDS ...
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... For GAIN = 100, the applied V For GAIN = 200, the applied V Note 5: The device is stable for any capacitive load at V Note the voltage from RS- TSM9938DS r1p0 - 0V -40°C to +85°C, unless otherwise noted. Typical values are at RS- A CONDITIONS +25° ...
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... TEMPERATURE - °C Page Input Offset Voltage vs Common-Mode Voltage 0.8 0.6 0.4 0 Gain Error Histogram -0.4 -0.2 0 0.2 0.4 GAIN ERROR - % SUPPLY VOLTAGE - Volt Supply Current vs Common-Mode Voltage SUPPLY VOLTAGE - Volt TSM9938DS r1p0 RTFDS ...
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... G = 100 3 2 1 100 SENSE Small-Signal Gain vs Frequency 100 - -15 -20 -25 -30 -35 0.001 0.01 0 FREQUENCY - kHz TSM9938DS r1p0 0.5 0.4 0.3 0.2 0 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 150 0 - -40 -60 -80 -100 -120 -140 100 1000 TSM9938 Gain Error vs. Temperature -40 -15 ...
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... Small-Signal Pulse Response, Gain = 25 200µs/DIV Small-Signal Pulse Response, Gain = 100 200µs/DIV Page 6 Large-Signal Pulse Response, Gain = 50 200µs/DIV Large-Signal Pulse Response, Gain = 25 200µs/DIV Large-Signal Pulse Response, Gain = 100 200µs/DIV TSM9938DS r1p0 RTFDS ...
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... Referring to the typical application circuit on Page 1, the inputs of the op-amp-based circuit are connected across an external RSENSE resistor that is used to measure load current. At the non-inverting input of the TSM9938 (the RS+ terminal), the applied voltage RSENSE. Since the RS- terminal is LOAD the non-inverting input of the internal op amp, op-amp ...
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... TSM9938 LOA SENSE Since the FET’s drain terminal is connected to ROUT, the output voltage of the TSM9938 at the OUT terminal is, therefore OUT LOA SENSE The current-sense amplifier’s gain accuracy is therefore the ratio match of ROUT to R1. For each of the four gain options available, Table 1 lists the values for ROUT and R1. The TSM9938’ ...
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... RSENSE should include good thermal management techniques for optimal RSENSE power dissipation. Optional Output Filter Capacitor If the TSM9938 is part of a signal acquisition system where its OUT terminal is connected to the input of an ADC with an internal, switched-capacitor track- and-hold circuit, the internal track-and-hold’s ...
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... TSM9938 RS+/RS- input pair of TSM9938 #2 is wired opposite in polarity with respect to the RS+/RS- connections of TSM9938 #1. Current-sense amplifier #1 therefore measures the discharge current and current-sense amplifier #2 measures the charge current. Note that both output voltages are measured with respect to GND. When the discharge current is being measured, V ...
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... All dimensions are in mm. 8. This part is compliant with EIAJ spec. and JEDEC MO-178 AA 9. Lead span/stand off height/coplanarity are considered as special characteristic. 1.50 – 1.75 0.90 - 1.30 5 0.09 - 0.20 10º TYP 0.10 Max 0.50 Max 0.30 Min 0.20 Max 0.09 Min TSM9938 10º TYP 0º- 8º 0.25 0.30 - 0.55 Gauge Plane 0.50 – 0.70 Page 11 TSM9938DS r1p0 RTFDS ...