MAX1883EUP-T Maxim Integrated, MAX1883EUP-T Datasheet
MAX1883EUP-T
Specifications of MAX1883EUP-T
Related parts for MAX1883EUP-T
MAX1883EUP-T Summary of contents
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... MAX1880EUG -40°C to +85°C MAX1880EUG/V+ -40°C to +85°C MAX1881EUG -40°C to +85°C MAX1882EUG -40°C to +85°C MAX1883EUP -40°C to +85°C MAX1884EUP -40°C to +85°C MAX1885EUP -40°C to +85°C + Denotes a lead(Pb)-free/RoHS-compliant package. /V denotes an automotive qualified part. Typical Operating Circuit appears at end of data sheet. ...
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... TSSOP (derate 10.9mW/°C above +70°C) ......879mW + 0.3V) SUPP 24-Pin TSSOP (derate 12.2mW/°C above +70°C) ......975mW Operating Temperature Range MAX1778EUG, MAX1883EUP ........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C + 0.3V) SUPL Lead Temperature (soldering, 10s) .................................+300° ...
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... DRVP PCH On-Resistance R PCH(ON) DRVP NCH On-Resistance R NCH(ON) Maximum RMS DRVP Current FBP Power-Ready Trip Level FBP Fault Trip Level Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer = 10V, LDOOUT = FBL, BUF- = BUFOUT, BUF+ = FLTSET = TGND = SUPN SUPB SUPL = 0° ...
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... FBL 4.5 420 -10 = 2.25V 85 98 1.2 75 -100 -10 -100 13 MAX UNITS +50 mV +50 nA Ω 10 Ω 4 kΩ A 165 mV 190 4.3 V 220 µA 300 mV 1.265 V 1.2 % 0.02 %/V µA +0.8 mA 220 V 13 µA 850 µ +100 nA +100 kHz Maxim Integrated ...
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... I FLTSET Input Voltage Range FLTSET Threshold Voltage FLTSET Input Current RDY Output Low Voltage RDY Output High Leakage Thermal Shutdown Dual Mode is a trademark of Maxim Integrated Products, Inc. Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer = 10V, LDOOUT = FBL, BUF- = BUFOUT, BUF+ = FLTSET = TGND = ...
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... Phase IV = fully on (after 3072/f Falling edge, FLTSET = GND MIN 2.7 2.2 = 1MHz) OSC = 500kHz) OSC V IN 1.223 1.21 -50 0.75 375 79 ) 0.275 ) 1.1 OSC 1.07 MAX UNITS 5 0.7 mA 0.5 0.7 mA 0.5 10 µA 10 µA 10 µA 10 µA 13 µ 1.269 V 1.29 +50 nA 1.25 MHz 625 kHz 91 % Ω 0.7 20 µA 0.525 A 2.05 1.14 V Maxim Integrated ...
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... SUPB Input Supply Range V SUPB SUPB Quiescent Current I SUPB BUFOUT Leakage Current Input Common-Mode Voltage V CM Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer = 10V, LDOOUT = FBL, BUF- = BUFOUT, BUF+ = FLTSET = TGND = SUPN SUPB SUPL = -40°C to +85°C, unless otherwise noted.) (Note 2) ...
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... I 4.93 BUFOUT = ±5mA I -30 BUFOUT = ±45mA I -70 BUFOUT 9 80 1.223 0.9 2.1 0. REF 80 is 100mV below the set value of V LDOOUT MAX UNITS +500 nA +500 nA 5.012 5.03 V 5.07 + 170 mV 1.269 V 1 µA 0. REF 170 0 µA . Maxim Integrated ...
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SHDN = IN, V (Circuit of Figure BUF+ = FLTSET = TGND = PGND = GND, T MAIN 8V OUTPUT VOLTAGE vs. LOAD CURRENT 8.12 8. 3.3V IN 8.04 8. ...
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... REFERENCE VOLTAGE vs. REFERENCE LOAD CURRENT 1.27 1.26 1.25 1.24 1. (µA) REF STEP-UP CONVERTER LOAD-TRANSIENT RESPONSE (1µs PULSES) MAX1778 toc14 0. 8.0V B 7. 4µs/div 500mA, 500mA/div MAIN 8V, 100mV/div MAIN C. INDUCTOR CURRENT, 500mA/div 60 80 100 MAX1778 toc15 Maxim Integrated ...
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... C. POSITIVE CHARGE PUMP = V = 20V, R POS LOAD D. STEP-UP CONVERTER 8V 40Ω, 10V/div MAIN LOAD E. NEGATIVE CHARGE PUMP -5V, R NEG LOAD Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer Typical Operating Characteristics (continued MAIN SUPP = +25°C.) A STEP-UP CONVERTER SOFT-START (LIGHT LOAD) ...
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... 8V, BUF- = BUFOUT, SUPN SUPB SUPL LDO OUTPUT VOLTAGE vs. TEMPERATURE (INTERNAL LINEAR REGULATOR) 5.10 5.08 5.06 5.04 5.02 5.00 4.98 4.96 4.94 4.92 4.90 10 100 -40 -15 10 TEMPERATURE (°C) LDO SUPPLY CURRENT vs. LDO OUTPUT CURRENT (INTERNAL LINEAR REGULATOR) 4 LDOOUT 3.5 3.0 2.5 2.0 1.5 1.0 0 (mA) LDOOUT LDOOUT I = 40mA LDOOUT Maxim Integrated ...
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... 100µA TO 40mA, 40mA/div LDO 5V, 20mV/div LDO 100mV IN LDO Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer Typical Operating Characteristics (continued MAIN SUPP = +25°C.) A REGION OF STABLE C LDOOUT vs. LOAD CURRENT 100 ...
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... FIGURE 7 250mA 50mA 2.55V 2.50V 2.45V 100µs/div 100 1000 50mA TO 250mA, 200mA/div LDO 2.5V, 50mV/div LDO FIGURE 7 INPUT OFFSET VOLTAGE DEVIATION vs. BUFFER SUPPLY VOLTAGE 1.0 0.6 0.2 -0.2 -0.6 -1 SUPB MAX1778 toc35 SUPB (V) Maxim Integrated ...
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... BUFFER SUPPLY CURRENT vs. BUFFER SUPPLY VOLTAGE 0.50 0.46 0.42 0.38 0. SUPB 0. (V) SUPB Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer Typical Operating Characteristics (continued MAIN SUPP = +25°C.) A INPUT OFFSET VOLTAGE DEVIATION vs. TEMPERATURE 1 13V SUPB SUPB ...
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... BUF+ = GND, C SUPB MAIN VCOM BUFFER STARTUP MAX1778 toc51 8.1V 7.8V 100µs/div A. RDY, 2V/div B. BUFOUT = BUF 1µF, 2V/div BUF 8V 20mA, 200mV/div SUPB MAIN MAIN BUF+ = GND MAX1778 toc50 1µF BUF Maxim Integrated ...
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... Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC-DC Converters with Buffer MAX1885 NAME Main Step-Up Regulator Feedback Input. Regulates to 1.25V 1 FB nominal. Connect a resistive divider from the output (V to analog ground (GND). Main Step-Up Integrator Output. When using the integrator, ...
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... Active-Low, Open-Drain Output. Indicates all outputs are ready. RDY 20 On-resistance is 125Ω (typ). 11–13, N.C. No Connection. Not internally connected. 15, 16 Pin Description (continued) FUNCTION ⎛ I LDOOUT MAX ( ≥ ⎜ LDOOUT ⎝ V LDOOUT ) to FBL to analog ground (GND). LDOOUT REF ⎞ ) ⎟ ⎠ and 0. REF SUPN SUPP Maxim Integrated ...
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... These low-power outputs NEG use external diode and capacitor stages (as many stages as required) to regulate output voltages from - 40V to +40V. A unique control scheme minimizes output ripple as well as capacitor sizes for both charge pumps. Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer L1 6.8µH ...
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... V IN ≈ ⎜ ⎟ ⎜ ⎝ ⎠ ⎝ MAIN (2.7V TO 5.5V MAIN (UP TO 13V) C OUT R1 R COMP (OPTIONAL) C COMP (OPTIONAL REF ( ) MAIN REF 1.25V REF ⎞ MAIN IN ⎟ ⎠ OSC Maxim Integrated ...
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... POS REF 1.25V REF Figure 4. Low-Power Charge Pump Block Diagram Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer Dual Charge-Pump Regulator (MAX1778/ The MAX1778/MAX1880–MAX1882 controllers contain two independent low-power charge pumps (Figure 4). One charge pump inverts the input voltage and pro- vides a regulated negative output voltage ...
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... To improve the transient response MAX1778 MAX1881 MAX1883 MAX1884 THERMAL SENSOR CURRENT LIMIT ERROR AMPLIFIER V REF 1.25V GBW = gm/C OUT SUPL V SUPL 4.5V TO 15V C SUPL LDOOUT 1.25V TO (V SUPL LDOOUT C LDOOUT R7 FBL LDOOUT R8 GND V = 1.25V REF VCOM Buffer - 0.3V) REF Maxim Integrated ...
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... Then, the main DC-DC step- up converter powers up with soft-start enabled. The lin- ear regulator powers up at the same time as the main step-up converter; however, the power sequence and Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer MAX1778 ...
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... Thermal-Overload Protection = +160°C, a thermal J ⎡ 2 ⎛ ⎞ ⎛ ⎢ MAIN MAIN ≈ + ⎜ ⎟ ⎜ − ⎢ ⎝ ⎠ ⎝ ⎣ × FLTSET ) sec- ⎤ 2 ⎞ ⎥ IN ⎟ ⎥ ⎠ OSC ⎦ Maxim Integrated ...
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... STEP NEG The maximum allowed power dissipation is 975mW (24- pin TSSOP)/879mW (20-pin TSSOP) or: Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer and Efficiency where T the controller’s junction and the surrounding air, θ θ the thermal resistance of the package to the JC board, and θ ...
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... Figure COMP to be half the value of R2, the low-side COMP Integrator Capacitor = 1MHz)/1000pF (ƒ OSC ) in step-up designs reduces IN as for C IN OUT ( ) , AND ) ⎞ I MAIN ⎟ ⎠ f OUT OSC RIP series with = 500kHz) OSC Input Capacitor is largely IN . Maxim Integrated ...
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... C None COMP *R and C are connected between the step-up converter’s output (V COMP COMP Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer Rectifier Diode charge pump’s output impedance can be approximat- ed using the following equation: R where the charge pump’s switching frequency (f equal to 0 ...
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... None None ) and FB. MAIN Charge-Pump Input Power and Efficiency Considerations = + SUPP POS = + SUPP POS CIRCUIT 9 3.3V 9V 200mA -5V 5mA 24V 5mA 10µH >1A 20µF 309kΩ 49.9kΩ 20kΩ* 200pF* Maxim Integrated ...
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... CXN POS ( ) SUPD for the positive charge pump, and: Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer for the negative charge pump, where N is the stage number in which the flying capacitor appears, and N V SUPD (Figure 4). For example, the two-stage positive charge ...
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... LDOOUT MIN ( ) ⎛ ⎞ LDO + ≥ + ⎜ ⎟ ⎝ ⎠ 100 and LDOOUT ⎞ ⎟ ⎠ ⎞ ⎟ ⎠ ), even LDOOUT + β MIN I LOAD MAX ( ) REF LDO Maxim Integrated ...
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... 4.7µF 0.22µF C 0.22µF Figure 7. External Linear Regulator Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer voltage-divider from SUPB to BUF+ to GND (Figure 6). Select R12 in the 10kΩ to 100kΩ range. Calculate R11 with the following equation: Typical Operating where V can range from 1. mum 1µ ...
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... C R1 (2) 10µ COMP 86.6kΩ 4.7kΩ COMP 470pF 10kΩ C4 0.1µF FBP 1.0µF 750kΩ 49.9kΩ BUFFER OUTPUT BUFOUT SUPB C BUF 1.0µF R9 30kΩ R10 100kΩ MAIN V = 12V MAIN OUT POSITIVE V = 20V POS /2 REF Maxim Integrated ...
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... R10 100kΩ C INTG 470pF Figure 9. Input Voltage Above and Below the Output Voltage Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer Larger output capacitors with higher voltage ratings allow configurations with output voltages above 10V. Additionally, physically larger inductors with less series resistance and higher saturation ratings provide more output current and higher efficiency ...
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... STARTUP MAIN SYSTEM MAIN MAIN(START) MAIN(SYS OUT (2) 3.3µF 3.3µF C10 0.1µ 1.0µF 10kΩ C7 1.0µF STARTUP SYSTEM POSITIVE POSITIVE 20V V = 20V POS(START) POS(SYS RDY 5.1kΩ 100kΩ VCOM Buffer Startup INPUT V = 3.3V IN Maxim Integrated ...
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... BUFOUT These resistor values are selected to charge the output capacitor close to the output set voltage before the buffer starts up: ≈ BUFOUT Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer L1 6.8µ 274kΩ SHDN 49.9kΩ ...
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... Quad-Output TFT LCD DC/DC Converters with Buffer INPUT TO LOGIC LDO OUTPUT NEGATIVE 36 Typical Operating Circuit IN LX SHDN FB RDY SUPL LDOOUT SUPB SUPN SUPP MAX1778 FBL DRVP DRVN FBP FBN BUFOUT BUF- REF BUF+ FLTSET INTG GND PGND TGND MAIN POSITIVE BUFFER OUTPUT Maxim Integrated ...
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... REF 9 FBP 10 FBN 11 SHDN 12 TOP VIEW FB 1 INTG BUF+ 4 BUF- 5 SUPB 6 BUFOUT 7 GND 8 REF 9 SHDN 10 Maxim Integrated MAX1778/MAX1880–MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer + 24 RDY TGND INTG PGND BUF+ 4 MAX1778 20 DRVP BUF- 5 MAX1881 19 SUPP SUPB ...
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... RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE PACKAGE OUTLINE NO. TYPE CODE 20 TSSOP U20-2 21-0066 24 TSSOP U24-1 21-0066 LAND PATTERN NO. 90-0116 90-0118 Maxim Integrated ...
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... Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed ...