pca9922 NXP Semiconductors, pca9922 Datasheet
pca9922
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pca9922 Summary of contents
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... Rev. 01 — 15 January 2009 1. General description The PCA9922 is an 8-channel constant current LED driver designed for LED signage and display applications. The output current is adjustable from controlled by an external series resistor. The outputs are controlled via a serial interface with a maximum clock frequency of 25 MHz to allow for the system requirement of high volume data transmission ...
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... HVQFN20 plastic thermal enhanced very thin quad flat package; no leads; 20 terminals; body 5 4.1 Ordering options Table 2. Type number PCA9922N PCA9922PW PCA9922BS PCA9922_1 Product data sheet 8-channel constant current LED driver with output error detection 5 0.85 mm Ordering options Topside mark Temperature range PCA9922N ...
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... R_EXT CURRENT REGULATOR OUTPUT ENABLE LE 8 DATA LATCH V SS SDI 8 SHIFT REGISTER CLK ERROR CONTROL Block diagram of PCA9922 Rev. 01 — 15 January 2009 PCA9922 LED7 ERROR DETECT PCA9922 AUTO SHUTDOWN AND AUTO POWER-UP 002aad311 © NXP B.V. 2009. All rights reserved. SDO V ...
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... PCA9922 SDI CLK 3 LE/DM1 4 PCA9922PW 5 LED0 LED1 6 LED2 7 LED3 8 002aad163 Fig 3. Pin configuration for TSSOP16 15 SDO 14 OE/DM2 PCA9922BS 13 LED7 12 LED6 11 LED5 002aad349 © NXP B.V. 2009. All rights reserved R_EXT 14 SDO 13 OE/DM2 12 LED7 11 LED6 10 LED5 9 LED4 ...
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... Rev. 01 — 15 January 2009 PCA9922 Description supply ground serial data in serial data clock used to shift data on SDI into the shift register latch enable with internal pull-down resistor; active HIGH signal used to capture data in the shift register to present ...
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... NXP Semiconductors 7. Functional description The PCA9922 is an 8-channel constant current LED driver with built-in LED output error detection. The PCA9922 contains an 8-bit shift register and data latches, which convert serial input data into parallel output data. At the output stage, 8 regulated current sinks are designed to provide constant and ...
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... Fig 5. 7.2 LED output error detection The PCA9922 has built-in circuitry for detecting LED open-circuit and output short conditions. A predefined set of signal sequence on the input control lines must be initiated to perform the output error detection. Once the error data is captured by this sequence, error status can be read out of the device via the serial interface. The error detection mode is entered by the user via specifi ...
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... O th(det) [ channel n error status bit 0 O th(det) = 0.5 I (target) (typical). O threshold, the PCA9922 detects a shorted-load condition threshold, no error is detected or error bit is reset. This error status can be read Shorted-load detection Condition of Error status code output voltage ...
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... CLK 1'b0 for minimum of 3 clocks whichever is longer SDO previous serial data Timing for ‘Capture Fault Mode’ command Rev. 01 — 15 January 2009 PCA9922 fault data MSB resume shift with fault data 002aad205 © NXP B.V. 2009. All rights reserved ...
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... Fig 8. 7.2.7 Error detection data The PCA9922 will return a logical 1 for each output pin that has an error condition detected as described in open circuit or short-circuit at the output pin. Once the Capture Fault sequence has completed, the resultant fault/output error data may be shifted out of the device by issuing 8 clocks and reading the data at the SDO pin ...
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CLK SDI shift_reg[n-1:0] SDO previous serial data shifting out OE LE fault_load fault_data[n-1:0] error_detect_mode Lower-case signal names are internal signals shown to aid understanding of timing. Fig 9. Timing for a complete error detection sequence at ...
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... NXP Semiconductors 8. Application design-in information MICROCONTROLLER Fig 10. Typical application V DD CPU Fig 11. The PCA9922 in a typical multi-device architecture PCA9922_1 Product data sheet 8-channel constant current LED driver with output error detection LED0 LED1 LED2 PCA9922 R_EXT SDI CLK LE scan OE CLK ...
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... Parameter Conditions supply voltage LED output voltage pins LED0 to LED7 output current on pin LEDn output voltage on pin SDO total power dissipation T operating temperature Thermal characteristics Parameter thermal resistance from junction to ambient Rev. 01 — 15 January 2009 PCA9922 Min 0.5 0.5 0.5 0 DIP16 - TSSOP16 ...
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... 470 O ext between bits 910 O ext 470 O ext R = open; LED[7:0] = off ext R = 910 ; LED[7:0] = off ext R = 470 ; LED[7:0] = off ext R = 910 ; LED[7: ext R = 470 ; LED[7: ext Rev. 01 — 15 January 2009 PCA9922 Min Typ Max 2.4 2.5 2.6 2 [ 0 0 ...
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... LED0 to LED7 20.7 mA 910 O ext pins LED0 to LED7 20.7 mA 910 ; O ext OE = logic 0 Rev. 01 — 15 January 2009 PCA9922 Min Typ Max [ [2] 200 - - ...
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... LED driver with output error detection t CLK su(SDI) h(SDI su(OE) h(OE su(LE) h(LE SDO LEDn t f Rev. 01 — 15 January 2009 f CLK t w(CLKH) w(CLKL) t PD(CLK-SDO 002aad210 PCA9922 002aad209 © NXP B.V. 2009. All rights reserved ...
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... LED driver with output error detection t w(OE PD(OE-LEDH) t PD(OE-LEDL) LEDn w(LE PD(LEH-LEDH) t PD(LEH-LEDL) LEDn 50 % CLK PD(CLKH-LEDH) t PD(CLKH-LEDL) LEDn 50 % Rev. 01 — 15 January 2009 PCA9922 PD(OE-LEDH) t PD(OE-LEDL 002aad211 © NXP B.V. 2009. All rights reserved ...
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... REFERENCES JEDEC JEITA Rev. 01 — 15 January 2009 ( 6.48 3.60 8.25 2.54 7.62 6.20 3.05 7.80 0.26 0.14 0.32 0.1 0.3 0.24 0.12 0.31 EUROPEAN PROJECTION PCA9922 SOT38-4 ( max. 10.0 0.254 0.76 8.3 0.39 0.01 0.03 0.33 ISSUE DATE 95-01-14 03-02-13 © NXP B.V. 2009. All rights reserved ...
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... REFERENCES JEDEC JEITA MO-153 Rev. 01 — 15 January 2009 detail 6.6 0.75 0.4 1 0.2 0.13 6.2 0.50 0.3 EUROPEAN PROJECTION PCA9922 SOT403 ( 0.40 8 0.1 o 0.06 0 ISSUE DATE 99-12-27 03-02-18 © NXP B.V. 2009. All rights reserved ...
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... 2.5 scale (1) ( 5.1 3.25 5.1 3.25 0.65 2.6 4.9 2.95 4.9 2.95 REFERENCES JEDEC JEITA MO-220 - - - Rev. 01 — 15 January 2009 detail 0.75 0.05 0.1 2.6 0.1 0.05 0.50 EUROPEAN PROJECTION PCA9922 SOT662 ISSUE DATE 01-08-08 02-10-22 © NXP B.V. 2009. All rights reserved ...
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... Inspection and repair • Lead-free soldering versus SnPb soldering 16.3 Wave soldering Key characteristics in wave soldering are: PCA9922_1 Product data sheet 8-channel constant current LED driver with output error detection Rev. 01 — 15 January 2009 PCA9922 © NXP B.V. 2009. All rights reserved ...
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... Lead-free process (from J-STD-020C) Package reflow temperature ( C) 3 Volume (mm ) < 350 260 260 250 Figure 18. Rev. 01 — 15 January 2009 PCA9922 Figure 18) than a SnPb process, thus 350 220 220 350 to 2000 > 2000 260 260 250 245 245 245 © NXP B.V. 2009. All rights reserved. ...
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... LED driver with output error detection maximum peak temperature = MSL limit, damage level temperature minimum peak temperature = minimum soldering temperature MSL: Moisture Sensitivity Level Rev. 01 — 15 January 2009 PCA9922 peak temperature time 001aac844 ). If the stg(max) © NXP B.V. 2009. All rights reserved. ...
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... ElectroStatic Discharge Human Body Model Light Emitting Diode Machine Model Most Significant Bit Printed-Circuit Board Pulse Width Modulator Data sheet status Product data sheet Rev. 01 — 15 January 2009 PCA9922 Soldering method Dipping Wave - suitable suitable suitable - not suitable Change notice ...
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... Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. http://www.nxp.com salesaddresses@nxp.com Rev. 01 — 15 January 2009 PCA9922 © NXP B.V. 2009. All rights reserved ...
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... Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2009. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com PCA9922 All rights reserved. Date of release: 15 January 2009 Document identifier: PCA9922_1 ...