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LTC3452 Datasheet(PDF) 7 Page - Linear Technology |
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LTC3452 Datasheet(HTML) 7 Page - Linear Technology |
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7 / 16 page  7 LTC3452 3452f BLOCK DIAGRA 1MHz OSCILLATOR – + – + – + – + – + – + LOGIC GATE DRIVERS AND ANTI-CROSS- CONDUCTION AB PWM COMPARATOR CD PWM COMPARATOR 1600mA 200mA FORWARD CURRENT LIMIT REVERSE CURRENT LIMIT 18 21 UV UV OT VIN 2.7V TO 5.5V VC VIN PVIN VOUT SW1 SW2 20 1 19 17 UNDERVOLTAGE LOCKOUT OT OVERTEMPERATURE PROTECTION 1.23V VBIAS 800mV SDL 1.23V 1.23V BANDGAP REFERENCE 15 SWITCH A SWITCH B SWITCH D SWITCH C LED DETECT 4 LEDL1 VOUT LOW POWER LED BANK HIGH POWER LED BANK LED DETECT 5 LEDL2 LED DETECT 6 LEDL3 LED DETECT 7 LEDL4 LED DETECT 8 LEDL5 LED DETECT 10 LEDH1 LED DETECT 12 LEDH2 SOFT-START CLAMP EXPONENTIAL BRIGHTNESS CONTROL VOUT 327k 123k IMAXL 256 16 MAIN ERROR AMP LOW POWER LED CURRENT SETTING AMP SAFETY ERROR AMP 3 RISETL VFB PGND 11 GND 9 GND EXPOSED PAD ISETL ENL ENH 3452 BD – + 800mV SDH HIGH POWER LED CURRENT SETTING AMP RISETH ISETH – + IMAXH 768 SHUTDOWN CIRCUIT 2 14 13 SDL 8 LEVELS SDH SHUTDOWN |
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Similar Description - LTC3452 |
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