KIT34844AEPEVBE Freescale Semiconductor, KIT34844AEPEVBE Datasheet
KIT34844AEPEVBE
Specifications of KIT34844AEPEVBE
Related parts for KIT34844AEPEVBE
KIT34844AEPEVBE Summary of contents
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... Personal Computer Notebooks • GPS Screens • Small screen Televisions * This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Freescale Semiconductor, Inc., 2009-2010. All rights reserved 150/300/ EP SUFFIX (PB-FREE) ORDERING INFORMATION ...
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... SDA I0 PWM I1 A0/SEN M/~ ISET I7 PIN I8 NIN GND I9 34844A VIN SWA VDC1 SWB VDC2 VOUT VDC3 PGNDA COMP VCC PGNDB SLOPE FAIL SCK ~ ~ ~ ~ ~ ~ SDA I0 PWM I1 A0/SEN M/~ ISET I7 PIN I8 NIN GND VOUT ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... PWM Frequency Range 34844 34844A Notes 1. Refer to the respective Electrical Parameters for specific details Analog Integrated Circuit Device Data Freescale Semiconductor DEVICE VARIATIONS 31, MC34844A is within the Condition RISET=5.1 kΩ ±0.1% RISET=3.48 kΩ ±0.1% (BST [1:0]=0) (BST [1:0]=1) (BST [1:0]=2) [default] ...
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... MC34844 SPECIFICATIONS PAGES 34844 4 MC34844 SPECIFICATIONS PAGES Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... SDA 2 I ISET CURRENT DAC PIN TEMP/OPTO LOOP CONTROL NIN Figure 3. 34844 Simplified Internal Block Diagram 34844 5 LDO BOOST V SENSE 10 CHANNEL 50 mA CURRENT MIRROR C INTERFACE OCP/OTP/UVLO SWA SWB A0/SEN OVP PGNDA PGNDB FAIL GND Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... A0/SEN Input 7 EN Input I0-I9 Input 18 FAIL Open Drain 19 ISET Passive 20 PIN Input 21 NIN Input 22 SLOPE Passive 23 VDC3 Output 24 CK Input/Output Analog Integrated Circuit Device Data Freescale Semiconductor PIN CONNECTIONS TRANSPARENT TOP VIEW QFN - LEAD EP GND Figure 4. 34844 Pin Connections ...
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... Master/Slave selector Selects Master mode (1) or Slave mode (0) Internal Regulator 2 Decoupling capacitor for internal regulator Voltage Output Boost Output voltage sense pin Ground Ground Reference for all internal circuits other than Boost FET page 14. Definition Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Pin soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may cause malfunction or permanent damage to the device the Maximum allowable voltage on all LED channels in off-state. Analog Integrated Circuit Device Data Freescale Semiconductor MAXIMUM RATINGS Symbol V MAX ...
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... OUT1 V OUT2 I FET R DSON I BOOST_LEAK EFF BOOST Min Typ Max Unit 7 μ 5.4 6.0 6.4 V 150 200 250 mV 2.4 2.5 2.6 V 5.5 6.0 6.5 V 2.4 2 2.3 2.5 2 250 500 mΩ μ Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... PIN Bias Current PIN = V SET Analog Dimming Current ICHx Register = 255, RISET=5.1 kΩ 0.1% PIN = V /2 SET PIN = V SET Notes 9. Guaranteed by design Analog Integrated Circuit Device Data Freescale Semiconductor STATIC AND DYNAMIC ELECTRICAL CHARACTERISTICS = mA, PWM = VDC1, M/~S = VDC1, IN OUT LED Symbol I /V OUT IN I ...
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... Binary - 1110110 - Binary -0.3 - 0.8 V 2.1 - 5 0.4 V μA -5.0 - 5.0 ρ -0.3 - 0.5 V 1 μA -5 0.2 V 2.2 - 5.5 V ρ 5.0 Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Minimum Duty Cycle Maximum Duty Cycle Soft Start Period (10) Boost Switch Rise Time (10) Boost Switch Fall Time Notes 11. Guaranteed by design Analog Integrated Circuit Device Data Freescale Semiconductor STATIC AND DYNAMIC ELECTRICAL CHARACTERISTICS = mA, PWM = VDC1, M/~S = VDC1, IN OUT LED Symbol OVP FH OVP ...
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... SCK t RST Min Typ Max Unit 100 - 25000 Hz Hz 22500 25000 27500 90 100 110 - 0. 150 - - ns 100 - 23000 Hz 100 - 25000 0 2000 - ms 22500 25000 27500 Hz 90 100 110 400 kHz - - 100 160 Functional Device Operation for Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Passive pin used to compensate the boost converter. Add a capacitor and a resistor in series to GND to stabilize the system. Analog Integrated Circuit Device Data Freescale Semiconductor FUNCTIONAL DESCRIPTION INTRODUCTION the LCD surface. Each row or column is formed by a number of LEDs in series, forcing a single current to flow through all LEDs in each string ...
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... Ground pin for the internal Boost FET. OUTPUT VOLTAGE SENSE PIN (VOUT) Input pin to monitor the output voltage. It also supplies the input voltage for the internal regulator 2 (VDC2). SWITCHING NODE PINS (SWA, SWB) Switching node of boost converter. Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Manual mode, there capability, the bus line pins must be tied low, and the EN pin controls the ON/OFF operation. Analog Integrated Circuit Device Data Freescale Semiconductor Protection / Failure Detection LED Channels Boost Figure 5. Functional Internal Block Diagram • SM Bus mode, EN pin must be tied low and the device is turned ON by any activity on the bus lines ...
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... LED drivers would ) saturate for a few cycles once the LED channels are re- enabled. Current Consumption Comments Mode Shutdown Operational Shutdown Sleep Operational Low Power Part Doesn’t (Shutdown) Wake-up Sleep Operational command has to Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... PWM duty cycle. This pin can also be used to modulate Analog Integrated Circuit Device Data Freescale Semiconductor the LED at a lower frequency than the PWM dimming frequency (Minimum pulse width = 150 ns). ...
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... OVP level and then come down to the regulation level to continue powering the rest of the LED strings. Short LED Protection If an LED shorted in any of the LED strings, the device will continue to operate without interruption. However, if the Analog Integrated Circuit Device Data Freescale Semiconductor Eqn × 2 Eqn ...
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... If the IC temperature exceeds the OTT threshold, the IC will turn off all power sources inside the IC (LED drivers, boost and internal regulators) until the Analog Integrated Circuit Device Data Freescale Semiconductor FUNCTIONAL DESCRIPTION FUNCTIONAL INTERNAL BLOCK DESCRIPTION temperature falls below the falling OTT threshold. Once it ...
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... The 34844 can also be used in Manual mode without using 2 the I C interface. By setting the pin M/~S High, the LED dimming will be controlled by the external PWM signal. The over-voltage protection limit can be settled by a resistor divider on A0/SEN pin interface externally Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... The transmitter releases the SDA line (HIGH) during the acknowledge clock pulse. Analog Integrated Circuit Device Data Freescale Semiconductor PWM signal applied to PWM pin will be in charge of controlling LED dimming and enable the device every time the PWM is active. For this configuration EN pin should be LOW ...
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... FPWM7 FPWM6 FPWM13 FPWM12 DPWM1 DPWM0 CHEN1 CHEN0 CHEN6 CHEN5 BST1 BST0 ICH0_1 ICH0_0 ICH1_1 ICH1_0 ICH2_1 ICH2_0 ICH3_1 ICH3_0 ICH4_1 ICH4_0 ICH5_1 ICH5_0 ICH6_1 ICH6_0 ICH7_1 ICH7_0 ICH8_1 ICH8_0 ICH9_1 ICH9_0 ICHG_1 ICHG_0 Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Table 7. Register Description Default Value Register Name (Hex) 2 BST[1:0] FF ICH#[7:0] FF ICHG[7:0] Table 8. Over-voltage Protection REGISTER (HEX) Analog Integrated Circuit Device Data Freescale Semiconductor Description Boost Frequency (150,300,600,1200 kHz) [0h=150 Hz] Channel Current Program (FFh = Maximum Current) Global Current Program OVP VALUE (VOLTS ...
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... FPWM=600Hz, 100% duty Load = 16 LEDs, 50mA/channel V = 48V, ±1V /channel LED Vin, volts Fs = 600KHz L=22uH, DCR=52mO Schottky V12P10-E3/86A C = 2x4.7µF, 2x2.2µF/100V OUT FPWM=600Hz, 100% duty Load = 16 LEDs, 50mA/channel V = 48V, ±1V /channel LED Vin, volts Changing Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Figure 12. Bias Current vs Input Voltage (Operational Mode) Analog Integrated Circuit Device Data Freescale Semiconductor 25.03 mA 12.46 mA 25.0% 50.0% 75.0% PWM Duty Cycle (%) Figure 11. PWM Dimming Linearity Vin, volts FUNCTIONAL DEVICE OPERATION TYPICAL PERFORMANCE CURVES (TA=25° ...
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... Figure 13. Bias Current vs Input Voltage (Sleep Mode) COMP COMP VOUT VOUT INDUCTOR INDUCTOR CURRENT CURRENT 34844 Vin, volts Vin=24V Vin=24V Load=16 LEDs, 50mA/channel Load=16 LEDs, 50mA/channel VLED = 47V, ±1V VLED = 47V, ±1V Figure 14. Boost Soft Start I2C Mode SM_Bus Mode Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... CURRENT VOUT VOUT (ac coupled) (ac coupled) ILED, CH1 ILED, CH1 Figure 16. Typical Operation Waveforms for FPWM=600 Hz, 100% Duty Analog Integrated Circuit Device Data Freescale Semiconductor TYPICAL PERFORMANCE CURVES (TA=25°C) ILED, CH1 ISET=40mA (all channels) FPWM=600Hz, 40% duty VCH1 VOUT (ac coupled) INDUCTOR CURRENT ...
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... ISET = 20mA, FPWM=20KHz, Duty=0.78% (2LSB) FPWM=20KHz, Duty=0.78% (2LSB) FPWM=20KHz, Duty=0.78% (2LSB) ILED1 ILED1 ILED1 ISET = 20mA, ISET = 20mA, ISET = 20mA, FPWM=20KHz, Duty=0.39% (1LSB) FPWM=20KHz, Duty=0.39% (1LSB) FPWM=20KHz, Duty=0.39% (1LSB) VCh1 VCh1 VCh1 ILED1 ILED1 ILED1 Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... EN Control PWM VOUT Unit 150K 150K OVP = 55V Analog Integrated Circuit Device Data Freescale Semiconductor TYPICAL APPLICATIONS MANUAL MODE (Single Wire Control) 22uH 22uH VIN SWA 3 SWB 28 VDC1 31 32 VDC2 VOUT ...
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... SDA A0/SEN M/~ 5.1K 5. ISET I9 VDC1 20 PIN 21 33 NIN GND 0 34844 34844 0 Figure 22. Master - Slave Connection LED MATRIX (16S10P) VOUT 13.8uF 13.8uF + + 0 LED MATRIX (16S10P) VOUT 13.8uF 13.8uF + + 0 LED MATRIX (16S10P) VOUT 13.8uF 13.8uF + + 0 Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Analog Integrated Circuit Device Data Freescale Semiconductor MC34844A SPECIFICATIONS PAGES MC34844A SPECIFICATIONS PAGES 34844A 32 ...
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... SLOPE VOUT CK EN M/~S PWM PWM GENERATOR SCK SDA ISET PIN NIN Figure 23. 34844A Simplified Internal Block Diagram Analog Integrated Circuit Device Data Freescale Semiconductor INTERNAL BLOCK DIAGRAM LDO BOOST CONTROLLER V SENSE CLOCK/PLL 10 CHANNEL 80 mA CURRENT INTERFACE MIRROR CURRENT DAC TEMP/OPTO ...
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... Decoupling capacitor for internal phase locked loop power Clock signal Clock synchronization pin (input for M/~S = low - internal pull-up, output for M/~S = high) External PWM External PWM input (internal pull-down VDC3 22 SLOPE 21 NIN 20 PIN 19 ISET 18 FAIL page 42. Definition Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Output 29 COMP Passive 30 M/~S Input 31 VDC2 Output 32 VOUT Input EP GND - Analog Integrated Circuit Device Data Freescale Semiconductor Formal Name data I C data Line clock I C clock line Internal Regulator 1 Decoupling capacitor for internal logic rail Compensation pin Boost converter Type compensation pin ...
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... MAXIMUM RATINGS Symbol V MAX I MAX V ESD θ θ STO (16) T PPRT Value Unit +2000 +200 -40 to 105 °C 32 °C/W 3.5 °C/W 150 °C -40 to 150 °C 260 °C W 3.9 2.5 2.0 1.4 Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... This output is for internal use only and not to be used for other purposes 19. Minimum and Maximum output voltages are dependent on Min/Max duty cycle and current limit condition. 20. Guaranteed by design Analog Integrated Circuit Device Data Freescale Semiconductor STATIC AND DYNAMIC ELECTRICAL CHARACTERISTICS = PWM = VDC1, M/~S = VDC1, PIN & NIN = VDC1, IN OUT ...
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... CH_LEAK V PIN_DIS I PIN I DIM_PIN Min Typ Max Unit -0.2 - 0.2 %/V -0.2 - 0.2 %/V - 0.49 - V/μ mΩ μS - 200 - μA - 100 - μ 0 78.4 80 81.6 mV 625 700 775 -2 2.007 2.048 2.069 % - 1.5 - μ 2 μA -2 Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... SINK Output High Voltage (CK) I < 2.0 mA SOURCE Input Current (22) Input Capacitance Notes 22. Guaranteed by design Analog Integrated Circuit Device Data Freescale Semiconductor STATIC AND DYNAMIC ELECTRICAL CHARACTERISTICS = PWM = VDC1, M/~S = VDC1, PIN & NIN = VDC1, IN OUT Symbol V NIN_DIS I NIN I DIM_NIN ...
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... 37.5 V 30 6.15 6.5 6.85 V μA 70 100 130 0.14 0.16 0.18 MHz 0.29 0.32 0.35 MHz 0.59 0.65 0.72 MHz 1.17 1.30 1.42 MHz 0.29 0.32 0.35 MHz - 6 Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Notes 24. Special considerations should be made for frequencies between 110 Hz to 1.0 KHz. Please refer to further details. 25. Guaranteed by design Analog Integrated Circuit Device Data Freescale Semiconductor STATIC AND DYNAMIC ELECTRICAL CHARACTERISTICS = PWM = VDC1, M/~S = VDC1, PIN & NIN = VDC1, IN OUT Symbol fPWM ...
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... This terminal is internally pulled down. An external PWM signal can be applied to modulate the LED channel directly in 2 absence CLOCK I C SIGNAL (SCK) Clock line for I 2 ADDRESS I C SIGNAL (SDA) Address line for programmable or external C interface communication communication. Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... V PIN pin and NIN pin, scales the current to 100%. By Analog Integrated Circuit Device Data Freescale Semiconductor applying a voltage higher than 2.2 V, the scaling factor is disabled and the internal pull-ups are activated in both pins. GROUND (GND) Ground Reference for all internal circuits other than the Boost FET ...
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... IC prepared to communicate by I taking the EN bit low and then the EN pin low, the part enters into a shutdown mode. Boost LED Channels 2 C capability, the bus line pins collapses to a voltage OUT 2 C (setting communication Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... The boost controller has an integral track and hold amplifier with indefinite hold time capability, to enable immediate LED on cycles after extended off times. During extended off times, the external LEDs cool down from their Analog Integrated Circuit Device Data Freescale Semiconductor 2 SCK/SDA Pins I C Bit Command ...
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... POR or shutdown condition. This also apply if the part is reenabled by software. If the part is reenabled by software recommended to take PWM pin low, reenable the part and then follow the corresponding sequence shown above Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... A 6.98 kohm resistor or higher value must be used at the ISET pin if the part is configured to use PIN+NIN control loop Analog Integrated Circuit Device Data Freescale Semiconductor FUNCTIONAL INTERNAL BLOCK DESCRIPTION functionality, the 80 mA maximum current is achieved at the higher allowed level of PIN/NIN pins, ensuring the maximum current of the LED Drivers are not exceeded ...
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... EN pin. • PWM Signal tied to SDA pin (Just ONE signal): In this configuration the PWM pin should be tied to the SDA pin. The PWM signal applied to PWM pin will interface externally by 14, under this configuration the Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Master (Control Unit). • The transmitter releases the SDA line (HIGH) during the acknowledge clock pulse.The receiver (34844A) must pull Analog Integrated Circuit Device Data Freescale Semiconductor I2C BUS SPECIFICATION Figure 26. A Complete Data Transfer down the SDA line during this acknowledge pulse to indicate that the data was correctly written. • ...
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... ICH0_0 ICH1_2 ICH1_1 ICH1_0 ICH2_2 ICH2_1 ICH2_0 ICH3_2 ICH3_1 ICH3_0 ICH4_2 ICH4_1 ICH4_0 ICH5_2 ICH5_1 ICH5_0 ICH6_2 ICH6_1 ICH6_0 ICH7_2 ICH7_1 ICH7_0 ICH8_2 ICH8_1 ICH8_0 ICH9_2 ICH9_1 ICH9_0 ICHG_2 ICHG_1 ICHG_0 POWER OFF section. Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... FF ICH#[7:0] FF ICHG[7:0] Table 15. Over-voltage Protection Analog Integrated Circuit Device Data Freescale Semiconductor Description PWM Frequency PWM Duty Cycle (FFh =100%) Channel Enable (0=off, 1=on) All 10 channels OFF at the same. In order to reactivate channels this bit should be clear. Clear fail if channels are re-enable. ...
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... PWM = 200Hz (5V) 0 27K 27K 100pF 100pF 0 EN Control PWM VOUT Unit 150K 150K OVP = 53V 27K 27K ISET = 60mA 0 Conditons Analog Integrated Circuit Device Data Freescale Semiconductor TYPICAL APPLICATIONS 47uH 47uH D429 D429 VIN SWA 3 SWB 28 VDC1 31 32 VDC2 VOUT ...
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... SCK SDA A0SEN_Slave CONTROL UNIT * FOR I2C MODE - SETI2C bit should be set High. * FOR SM-BUS MODE - EN pin should be connected to GND or taken low by the Control Unit. Conditons Analog Integrated Circuit Device Data Freescale Semiconductor I2C MODE (Master Mode) 47uH 47uH D533 D533 1 ...
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... PWM = 200Hz (5V) VOUT 270K 270K 4.64K 4.64K OVP = 125V 18K 18K ISET = 0 60mA Figure 31. HIGH VOUT application (Manual Mode) Conditions 72V Analog Integrated Circuit Device Data Freescale Semiconductor 150UH 150UH 1 PDS3200 PDS3200 7447709151 7447709151 VDC2 FDS2572 FDS2572 0.1UF 0.1UF 0 MMSZ5268BT1G MMSZ5268BT1G ...
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... SENSE amplifier gain (A ). CSA Analog Integrated Circuit Device Data Freescale Semiconductor COMPONENTS CALCULATION The output voltage ripple (ΔV the Output capacitor, for a low output voltage ripple it is recommended to use Ceramic capacitors that usually have very low ESR. Since ceramic capacitor are expensive, Electrolytic or Tantalum capacitors can be mixed with ceramic capacitors to have a cheaper solution ...
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... Shunt Compensation Capacitor COMP2 V = Slope Compensation (V/ SLOPE × External Resistor for Slope Compensation SLOPE 3 ×10 33 ---------------------------- - R = SLOPE × SLOPE of Internal Switch = RMS current for Input Capacitor = RMS current for Output Capacitor = ESR of Output Capacitor s) μ Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Analog Integrated Circuit Device Data Freescale Semiconductor LAYOUT GUIDELINES SWITCHING NODE (SWA & SWB) The components associated to this node must be placed as close as possible to each other to keep the switching loop small enough so that it does not contaminate other signals ...
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... PACKAGING PACKAGE DIMENSIONS For the most current package revision, visit www.freescale.com and perform a keyword search using the “98A” listed below. 34844 58 PACKAGING PACKAGE DIMENSIONS EP SUFFIX 32-PIN 98ASA10800D REVISION O Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Analog Integrated Circuit Device Data Freescale Semiconductor EP SUFFIX 32-PIN 98ASA10800D REVISION O PACKAGING PACKAGE DIMENSIONS 34844 59 ...
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... PACKAGING PACKAGE DIMENSIONS 34844 60 EP SUFFIX 32-PIN 98ASA10800D REVISION O Analog Integrated Circuit Device Data Freescale Semiconductor ...
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... Combined Complete Data sheet for Part Numbers MC34844 and MC34844A to this data 3/2010 7.0 sheet. • Removed OVP=4h, OVP=3h and OVP=2h rows from Table 11. 7/2010 8.0 • PWM and CK Frequency range changed in Electrical Characteristics table. Analog Integrated Circuit Device Data Freescale Semiconductor REVISION HISTORY REVISION HISTORY 34844 61 ...
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... Freescale Semiconductor was negligent regarding the design or manufacture of the part. Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc ...