isl28006 Intersil Corporation, isl28006 Datasheet

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isl28006

Manufacturer Part Number
isl28006
Description
Micropower, Rail To Rail Input Current Sense Amplifier With Voltage Output
Manufacturer
Intersil Corporation
Datasheet

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Micropower, Rail to Rail Input Current Sense
Amplifier with Voltage Output
ISL28006
The ISL28006 is a micro power, uni-directional
high-side and low-side current sense amplifier
featuring a proprietary rail-to-rail input current sensing
amplifier. The ISL28006 is ideal for high-side current
sense applications where the sense voltage is usually
much higher than the amplifier supply voltage. The
device can be used to sense voltages as high as 28V
when operating from a supply voltage as low as 2.7V.
The micropower ISL28006 consumes only 50µA of supply
current when operating from a 2.7V to 28V supply.
The ISL28006 features a common-mode input voltage
range from 0V to 28V. The proprietary architecture
extends the input voltage sensing range down to 0V,
making it an excellent choice for low-side ground sensing
applications. The benefit of this architecture is that a high
degree of total output accuracy is maintained over the
entire 0V to 28V common mode input voltage range.
The ISL28006 is available in fixed (100V/V, 50V/V, 20V/V
and Adjustable) gains in the space saving 5 Ld SOT-23
and 6 Ld SOT-23 packages. The parts operate over the
extended temperature range from -40°C to +125°C.
Typical Application
February 4, 2010
FN6548.1
POWER SUPPLY
MULTIPLE
OUTPUT
+1.0VDC
+12VDC
+5VDC
SENSE
SENSE
SENSE
GND
R
R
R
SENSE
SENSE
SENSE
1
+
+
ISL28006
ISL28006
+
ISL28006
-
-
-
+5VDC
+5VDC
+5VDC
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
+12VDC
OUTPUT
+12VDC
OUTPUT
I
+5VDC
+1.0VDC
+1.0VDC
OUTPUT
+5VDC
I
SENSE
I
SENSE
SENSE
Features
• Low Power Consumption. . . . . . . . . . . . . . . . . . 50µA,Typ
• Supply Range . . . . . . . . . . . . . . . . . . . . . . . . .2.7V to 28V
• Wide Common Mode Input . . . . . . . . . . . . . . . . 0V to 28V
• Fixed Gain Versions
• Operating Temperature Range . . . . . . . . -40°C to +125°C
• Packages . . . . . . . . . . . . . . . . .5 Ld SOT-23, 6 Ld SOT-23
Applications*
• Power Management/Monitors
• Power Distribution and Safety
• DC/DC, AC/DC Converters
• Battery Management/Charging
• Automotive Power Distribution
Gain Accuracy vs V
28V
- ISL28006-100. . . . . . . . . . . . . . . . . . . . . . . . . . . 100V/V
- ISL28006-50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50V/V
- ISL28006-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V/V
- ISL28006-ADJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ADJ
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
-0.2
-0.4
-0.6
-0.8
-1.0
-1.2
-1.4
0.6
0.4
0.2
0
0
Copyright Intersil Americas Inc. 2009, 2010. All Rights Reserved
2
4
6
8 10 12 14 16 18 20 22 24 26 28
(see page 19)
-40°C
V
RS+
+125°C
(V)
+25°C
RS+
= 0V to
GAIN 100

Related parts for isl28006

isl28006 Summary of contents

Page 1

... Low Power Consumption 50µA,Typ • Supply Range . . . . . . . . . . . . . . . . . . . . . . . . .2.7V to 28V • Wide Common Mode Input . . . . . . . . . . . . . . . . 0V to 28V • Fixed Gain Versions - ISL28006-100 100V/V - ISL28006-50 50V/V - ISL28006-20 20V/V - ISL28006-ADJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ADJ • Operating Temperature Range . . . . . . . . -40°C to +125°C • Packages . . . . . . . . . . . . . . . . .5 Ld SOT-23 SOT-23 Applications* • Power Management/Monitors • ...

Page 2

... Positive Power Supply CC RS+ Sense Voltage Non-inverting Input RS- Sense Voltage Inverting Input V CC COUPLED COUPLED OUT ESD CLAMP ESD CLAMP GND OUT ADJ OPTION ONLY F B ISL28006 (6 LD SOT-23) TOP VIEW GND ADJ. OUT 2 5 RS- GAIN RS+ CC DESCRIPTION February 4, 2010 ...

Page 3

... SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL28006. For more information on MSL please see techbrief TB363. ...

Page 4

... Common Mode Rejection Ratio PSRR Power Supply Rejection Ratio VF Full-scale Sense Voltage S 4 ISL28006 Thermal Information Thermal Resistance (Typical SOT-23 (Notes SOT-23 (Notes Maximum Storage Temperature Range . . . -65°C to +150°C Maximum Junction Temperature (T Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below http://www ...

Page 5

... Short Circuit Sinking Current SC- I Gain = 100 S Supply Current Gain = 50, 20 Supply Current V Supply Voltage CC SR Gain = 100 Slew Rate Gain = 50 Slew Rate Gain = 20 Slew Rate 5 ISL28006 = 12V 28V RS+ LOAD SENSE CONDITIONS ISL28005-100 ISL28005-50 ISL28005- 12V 20mV to 100mV ...

Page 6

... – SENSE SENSE extrapolated from the gain measurement. OS ⎛ G MEASURED 9. % Gain Accuracy = G = ⎜ ------------------------------------------------------------------------------ - A ⎝ ⎛ VOUT 10. Output Accuracy % VOA = ⎜ --------------------------------------------------------------------------------------------------------- - ⎝ 6 ISL28006 = 12V 28V RS+ SENSE CONDITIONS 12V, 0.1V 100mV SENSE 12V, 0.1V 100mV SENSE 12V, 0.1V 100mV ...

Page 7

... SENSE -200 -160 -120 -80 - (µV) OS FIGURE 5. V (µV) DISTRIBUTION AT +25° =12V, Qty: 100 RS+ 7 ISL28006 V = 12V 1M, unless otherwise specified GAIN 100 100 FIGURE 2. LARGE SIGNAL TRANSIENT RESPONSE = 100mV 2.4 2.0 1.6 1.2 0.8 0.4 0 1.4 1.6 1.8 2.0 FIGURE 4 ...

Page 8

... V (V) CC FIGURE 0.5 +25°C 0 -40°C -0.5 -1.0 -1.5 -2.0 0 0.2 0.4 0.6 0.8 1.0 1.2 V (V) RS+ FIGURE 11. GAIN ACCURACY ISL28006 V = 12V 1M, unless otherwise specified. (Continued 250 GAIN 100 200 150 100 -100 -150 -200 -250 1.4 1.6 1.8 2.0 RS+ GAIN 100 -40°C -0.2 -0.4 +125°C -0.6 -0.8 -1.2 -1.4 FIGURE 10 ...

Page 9

... FREQUENCY (Hz) FIGURE 15. GAIN vs FREQUENCY V = 100mV/12V 250mV OUT P-P 0.30 0.25 0.20 0.15 0.10 0.05 0 -0.05 -0.10 -50 - TEMPERATURE (°C) FIGURE 17. GAIN ACCURACY (%) vs TEMPERATURE 9 ISL28006 V = 12V 1M, unless otherwise specified. (Continued +25°C GAIN 100 , V = 0.1V CC RS+ = 100mV V = 12V RS+ -100 100k 1M = 100mV, SENSE GAIN 100 V = 12V RS+ 75 100 125 FIGURE 18 ...

Page 10

... V (V) CC FIGURE 23 RS+ 10 ISL28006 V = 12V 1M, unless otherwise specified. (Continued GAIN 100 GAIN 50 -100 -150 -200 -250 1.4 1.6 1.8 2.0 RS+ GAIN 50 +25°C -40°C FIGURE 24 ...

Page 11

... V = 100mV SENSE A = 100 - -35 10 100 1k 10k FREQUENCY (Hz) FIGURE 29. GAIN vs FREQUENCY V = 100mV/12V 250mV OUT P-P 11 ISL28006 V = 12V 1M, unless otherwise specified. (Continued GAIN 50 +125°C 1.4 1.6 1.8 2 FIGURE 26. GAIN ACCURACY vs V RS+ -40°C GAIN 0. GAIN 50 = 100mV V = 12V RS+ ...

Page 12

... V (V) RS+ FIGURE 35 ISL28006 V = 12V 1M, unless otherwise specified. (Continued 0.10 GAIN 50 0. 12V RS+ 0.06 0.04 0.02 -0.02 -0.04 -0.06 -0.08 -0.10 -0.12 75 100 125 FIGURE 32. V GAIN 100 150 ...

Page 13

... V (V) CC FIGURE 41. GAIN ACCURACY ISL28006 V = 12V 1M, unless otherwise specified. (Continued GAIN 20 +25°C -40°C -0.2 -0.4 -0.6 -0.8 -1.0 -1.2 -1.4 FIGURE 38. GAIN ACCURACY 0.1V RS+ GAIN 20 +125°C -0.5 -1.0 -40°C -1 ...

Page 14

... FIGURE 45. GAIN ACCURACY (%) vs TEMPERATURE Test Circuits and Waveforms SENSE RS- V RS+ - GND - FIGURE 47 CMRR, PSRR, GAIN ACCURACY 14 ISL28006 V = 12V 1M, unless otherwise specified. (Continued GAIN 20 = 100mV V = 12V RS+ 100k 1M 100mV, SENSE= GAIN 12V RS+ 75 100 125 FIGURE 46. V OUT ...

Page 15

... The ISL28006-ADJ is a single supply, uni-directional current sense amplifier with an adjustable gain via external resistors. The ISL28006 is a 2-stage amplifier. Figure 52 shows the active circuitry for high-side current sense applications where the sense voltage is between 1.35V to 28V. Figure 53 shows the active circuitry for ground sense applications where the sense voltage is between ...

Page 16

... OPTIONAL TRANSIENT PROTECTION LOAD FIGURE 52. HIGH-SIDE CURRENT DETECTION OPTIONAL I = 2.86µA FILTER CAPACITOR SENSE - R S- OPTIONAL TRANSIENT PROTECTION LOAD FIGURE 53. LOW-SIDE CURRENT DETECTION 16 ISL28006 SENSE HIGH-SIDE R SENSING =2V TO 28V HI RS 1.35V - ‘V gm SENSE R LO ...

Page 17

... It is that low-side sense gm amplifier that gives the ISL28006 the proprietary ability to sense current all the way to 0V. Negative voltages on the R beyond the sensing voltage range of this amplifier. ...

Page 18

... These parameters are related using Equation 5: θ xPD JMAX MAX JA MAXTOTAL 18 ISL28006 I = 2.86µ 1.35V gm LO where: • P DMAXTOTAL dissipation of each amplifier in the package (PD • ...

Page 19

... Under Features .... moved order of parts listing from 20, 50, 100 (from top to bottom) to 100, 50, 20. -Page 3: Removed coming soon on ISL28006FH50Z and ISL28006FH20Z and changes the order or listing them to 100, 50, 20. -Page 5: VOA test. Under conditions column ...deleted 20mV to. It now reads ... Vsense = 100mV SR test ...

Page 20

... 0. 0. SEATING PLANE 0. (L1 ISL28006 MDP0038 D SOT-23 PACKAGE FAMILY SYMBOL NOTES: 1. Plastic or metal protrusions of 0.25mm maximum per side are not A2 included. ...

Page 21

... No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see 21 ISL28006 P6.064 VIEW C 6 LEAD SMALL OUTLINE TRANSISTOR PLASTIC PACKAGE ...

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