ISL22444TFV20Z Intersil, ISL22444TFV20Z Datasheet
ISL22444TFV20Z
Specifications of ISL22444TFV20Z
Related parts for ISL22444TFV20Z
ISL22444TFV20Z Summary of contents
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... Each DCP can be used as three-terminal potentiometer or as two-terminal variable resistor in a wide variety of applications including control, parameter adjustments, and signal processing. Ordering Information PART NUMBER (Notes 1, 2) PART MARKING ISL22444TFV20Z 22444 TFVZ ISL22444TFR20Z 22444 TFRZ ISL22444UFV20Z 22444 UFVZ ISL22444UFR20Z 22444 UFRZ ...
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Block Diagram SCK SDI SDO INTERFACE CS Pinouts ISL22444 (20 LEAD TSSOP) TOP VIEW 1 RH3 2 RL3 3 RW3 SCK 6 SDO 7 GND 8 RW2 9 RL2 10 RH2 2 ISL22444 VCC V- POWER-UP, CONTROL ...
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... RL0 20 18 RW0 EPAD* * Note: PCB thermal land for QFN EPAD should be connected to V- plane or left floating. For more information refer to http://www.intersil.com/data/tb/TB389.pdf 3 ISL22444 “High” terminal of DCP3 “Low” terminal of DCP3 “Wiper” terminal of DCP3 No connection SPI interface clock input ...
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... Thermal Information Thermal Resistance (Typical, Note 3) 20 Lead TSSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 +0 Lead QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Maximum Junction Temperature (Plastic Package +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp CC Recommended Operating Conditions Temperature Range (Full Industrial .-40°C to +125°C Power Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15mW 2.25V to 5. ...
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Analog Specifications Over recommended operating conditions unless otherwise stated. (Continued) SYMBOL PARAMETER f -3dB cut off frequency cutoff (Note 20) RESISTOR MODE (Measurements between RWi and RL i with RHi not connected, or between RWi and RHi with RLi not ...
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Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued) SYMBOL PARAMETER I V- Current (standby) V- Current (shutdown Current (shutdown) V-SD I Leakage current, at pins SCK, SDI, LkgDig SDO and CS ...
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Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued) SYMBOL PARAMETER Cpin SCK, SDI, SDO and CS pin (Note 20) capacitance f SPI frequency SCK t SPI clock cycle time CYC t SPI clock high time WH t ...
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DCP Macro Model R TOTAL 10pF 25pF RW Timing Diagrams Input Timing CS t LEAD SCK t SU MSB SDI HIGH IMPEDANCE SDO Output Timing CS SCK t SO MSB SDO ADDR SDI XDCP Timing ...
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Typical Performance Curves 100 150 TAP POSITION (DECIMAL) FIGURE 1. WIPER RESISTANCE vs TAP POSITION [ I(RW FOR 10kΩ (W) CC TOTAL 0. ...
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Typical Performance Curves 0 5.5V CC 0.25 0 -0. 2.25V CC -0. 100 150 TAP POSITION (DECIMAL) FIGURE 7. DNL vs TAP POSITION IN RHEOSTAT MODE FOR 10kΩ (W) 1.60 1.20 0.80 5.5V 0.40 ...
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Typical Performance Curves SCL WIPER FIGURE 13. MIDSCALE GLITCH, CODE 7Fh TO 80h Pin Description Potentiometer Pins RHI AND RLI The high (RHi) and low (RLi) terminals of the ISL22444 are equivalent to the fixed terminals of a mechanical potentiometer. ...
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When the WRi register of a DCP contains all ones (WRi[7:0]= FFh), its wiper terminal (RWi) is closest to its “High” terminal (RHi). As ...
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SCK. CS must be LOW during communication with the ISL22444. SCK and CS lines are controlled by the host or master. The ISL22444 operates only as a slave device. All communication over the SPI interface ...
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CS 1 SCK RD ADDR SDI SDO Applications Information Communicating with ISL22444 Communication with ISL22444 proceeds using SPI interface through the ACR (address 10000b), IVRi (address 00000b, 00001b, 00010b or 00011b), WRi (addresses 00000b, 00001b, 00010b or 00011b) and General ...
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CS SCK DCP0 MOSI MISO CS SCK µC SDI SDO FIGURE 18. DAISY CHAIN CONFIGURATION CS SCK 16 CLKLS SDI SDO 0 SDO 1 SDO 2 FIGURE 19. DAISY CHAIN WRITE SEQUENCE ...
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... DCP1 programs the gain of the ISL28272 from 90 to 110 with 5V output for 10A current through current sense resistor. DCP2 and DCP3 are used for another channel of dual ISL28272 correspondently (not shown in Figure 22). More application examples can be found at http://www.intersil.com/data/an/AN1145.pdf 16 ISL22444 16 CLKS 16 CLKS ...
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DC/DC CONVERTER OUTPUT 0.005Ω 10k 0.1µF + 50k, 1% RH0 R 2 RW0 1k, 1% RL0 50k DCP0 (1/4 ISL22444U) PROGRAMMABLE OFFSET ±25mV R 3 50k, 1% -5V +5V SPI BUS -5V FIGURE 22. CURRENT SENSING WITH ...
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... Dimensions D2 and E2 are for the exposed pads which provide improved electrical and thermal performance. 8. Nominal dimensions are provided to assist with PCB Land Pattern Design efforts, see Intersil Technical Brief TB389. 9. Features and dimensions A2, A3, D1, E1, P & θ are present when Anvil singulation method is used and not present for saw singulation. 10. Compliant to JEDEC MO-220VHHC Issue I except for the " ...
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... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...