TB62737FPG Toshiba, TB62737FPG Datasheet
TB62737FPG
Specifications of TB62737FPG
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TB62737FPG Summary of contents
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... TOSHIBA BiCD Digital Integrated Circuit Silicon Monolithic Step Up Type DC-DC Converter for White LED The TB62737FPG is a high efficient step-up type DC-DC converter specially designed for constant current driving of White LED. This IC can drive 2-6 white LEDs connected series using a Li-ion battery. This IC contains N-ch MOS-FET Transistor for Coil-Switching, and LED Current ( set with an external resistor ...
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... Level detect CTL AMP VIN 5 GND OVD 4 FB SHDN Function Description = 25% to 100 100% F setting resistor connecting terminal TB62737FPG OVD 2 CTL AMP Error AMP. 5 GND GND Week 2010-11-16 ...
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... I/O Equivalent Pin Circuits 1. SHDN Terminal V IN SHDN 3 3. VIN Terminal to GND Terminal VIN 1 GND Terminal OVD Terminal OVD Terminal TB62737FPG 2010-11-16 ...
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... In the case of LED open circuit, Overvoltage output is detected and switching operation of NchMOS is stopped. ( *If the voltage returns to detection level or less, operation is enabled again. ) Indictor Size 4.7 μ H 6.8 μ H LED current I 8.1 μ μ H (Ω) is the resistance for the setting the output current. SENS 4 TB62737FPG Note = (mA). F 2010-11-16 ...
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... Linearity error in V-A Conversion is within +/−10 0.5 V SHDN Voltage V SHDN I Valuable Rate F 100 0 2 SHDN 100 Current variable due to SHDN pin 3 variable rate 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 V (V) SHDN 5 TB62737FPG > 2 Note SHDN 100 Unit 2.0 2.2 2.4 2.6 2.8 2010-11-16 ...
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... SENS Set ON-time Set OFF-time = 0.1 (μF) or less are recommended. of charge depends on the constant number. And so arises in turning on. Take care in selecting the × ONDuty % [ ] Ω 6 TB62737FPG 33 μ more = 3.3% Available Duty Ratio (3.3% to 96.7%) 33 μ more = 3.3% 2010-11- ...
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... SHDN 500kHz VOUT 1kHz 2kHz 4kHz 8kHz I 12kHz IN 80 100 SHDN 500kHz VOUT 1kHz 2kHz 4kHz 8kHz I 12kHz IN 80 100 SHDN 500kHz VOUT 1kHz 2kHz 4kHz 8kHz 12kHz 100 7 TB62737FPG Wave Form Wave Form Wave Form Wave Form 2010-11-16 ...
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... V IN 2.8 to 5.5 V PWM signal 6.8 μ H S-Di VIN SW SHDN OVD FB GND 8 TB62737FPG 2010-11-16 ...
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... Ratio with Setting Current No connect (OFF) 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 <Recommended application> 2 the input analog voltage is between 0 V SENS 100% 116.0% 106.5% 95.4% 140.0% 120.0% 84.5% 100.0% 73.6% 80.0% 59.9% 60.0% 40.0% 48.4% 20.0% 37.4% 0.0% 0 26.6% 15.9% 5.8% 0.0% 6.8 μ H S-Di VIN SW SHDN OVD 16 k Ω FB GND Analog DAC 9 TB62737FPG TB62737FUG Analog Voltage Input to FB Terminal 0.5 1 1.5 2 Input Voltage 2010-11-16 2.5 ...
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... SENS 100% 116.1% Input PWM signal filtered with R,C to the FB terminal Input PWM signal filtered with RC to the FB terminal 105.3% 140.0% 95.1% 120.0% 84.8% 100.0% 80.0% 74.6% 60.0% 64.0% 40.0% 53.8% 20.0% 0.0% 43.7% 0% 34.0% 24.2% 13.3% 6.8 μ H S-Di VIN SW SHDN OVD 16 k Ω FB GND PWM signal 10 TB62737FPG TB62737FUG TB62737FUG 20% 40% 60% 80% 100% PWM Duty(%) 2010-11-16 ...
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... R SENS [ ] Ω SENS × 325 Ω R SENS [ ] [ ] [ ] Ω × Ω SENS 1 SENS × 325 Ω × SENS 1 11 TB62737FPG . Ω × Ω Ω × Ω Ω × Ω + Ω × Ω ...
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... 25° 6.8 μ opr = 3.6 V (typ Δ 3 OVD OVD OVD 12 TB62737FPG Unit °C/W °C °C °C Min Typ. Max ⎯ 2.8 5.5 ⎯ 2 ⎯ 0 0.5 ⎯ ⎯ 33 ⎯ ⎯ 20 Min Typ ...
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... I (Off GND FB TB62737FPG VIN OVD SHDN (SW) o ↓ GND FB TB62737FPG SHDN VIN OVD Δ OSC 6.8 μ H 1SS404 VIN SW OVD TB62737FPG SHDN GND TB62737FPG 2010-11-16 ...
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... VIN SW OVD TB62737FPG GND SHDN 3 5 *1:The locations of the pins differ from the actual ones to simplify the diagram. See page 2 for the actual pin locations OVD TB62737FPG GND TB62737FPG VIN OVD SHDN 2010-11-16 ...
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... Efficiency Output current in the range 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 5 LEDs < LEDs 15 TB62737FPG Evaluation conditions (Ta = 25° CXLD120 series (NEO MAX CO.,Ltd.) 1 (Size: 2.5 mm × 3.0 mm × 1.2 mm C2012JB1E225K (TDK Corp C2012JB1E105K (TDK Corp.) 2 S-Di : CUS02 1 A/30 V (TOSHIBA Corp.) WLEDs : NSCW215T (NICHIA Corp RK73B1ETBK (KOA Corp ...
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... Efficiency Output current in the range 3 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 5 LEDs < LEDs 16 TB62737FPG Evaluation conditions (Ta = 25° 1001AS series (TOKO, INC) 1 (Size: 3.6 mm × 3.6 mm × 1.2 mm C2012JB1E225K (TDK Corp C2012JB1E105K (TDK Corp.) 2 S-Di : CUS02 1 A/30 V (TOSHIBA Corp.) WLEDs : NSCW215T (NICHIA Corp RK73B1ETBK (KOA Corp ...
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... Efficiency Output current in the range 3 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 5 LEDs < LEDs 17 TB62737FPG Evaluation conditions (Ta = 25° LQH2M series 1 (Murata Manufacturing Co.,Ltd.) (Size: 2.0 mm × 1.6 mm × 0.95 mm C2012JB1E225K (TDK Corp C2012JB1E105K (TDK Corp.) 2 S-Di : CUS02 1 A/30 V (TOSHIBA Corp.) WLEDs : NSCW215T (NICHIA Corp ...
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... Efficiency Output current in the range 3 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 5 LEDs < LEDs 18 TB62737FPG Evaluation conditions (Ta = 25° VLF3010A series (TDK Corp.) 1 (Size: 3.0 mm × 3.0 mm × 1.0 mm C2012JB1E225K (TDK Corp C2012JB1E105K (TDK Corp.) 2 S-Di : CUS02 1 A/30 V (TOSHIBA Corp.) WLEDs : NSCW215T (NICHIA Corp RK73B1ETBK (KOA Corp ...
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... Output current in the range 3 Iout 60 Efficiency Efficiency 50 4.6 4.9 5.2 5.5 2 LEDs 3 LEDs 4 LEDs 19 TB62737FPG Evaluation conditions (Ta = 25° 32R51 (KOA Corp.) 1 (Size: 3.2 mm × 2.5 mm × 0.6 mm C2012JB1E225K (TDK Corp C2012JB1E105K (TDK Corp.) 2 S-Di : CUS02 1 A/30 V (TOSHIBA Corp.) WLEDs : NSCW215T (NICHIA Corp RK73B1ETBK (KOA Corp ...
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... Package Dimensions Weight: 0.005 g (typ.) 20 TB62737FPG 2010-11-16 ...
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... DC voltage will increase. If this output voltage is connected to a speaker with low input withstand voltage, overcurrent or IC failure can cause smoke or ignition. (The over current can cause smoke or ignition from the IC itself.) In particular, please pay attention when using a Bridge Tied Load (BTL) connection type IC that inputs output DC voltage to a speaker directly. 21 TB62737FPG 2010-11-16 ...
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... If the current sink capability of the power supply is small, the device’s motor power supply and output pins might be exposed to conditions beyond maximum ratings. To avoid this problem, take the effect of back-EMF into consideration in system design. 22 TB62737FPG ) at any time and J 2010-11-16 ...
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... Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product. Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. TOSHIBA assumes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. 23 TB62737FPG 2010-11-16 ...