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STLED25JR Datasheet(PDF) 8 Page - STMicroelectronics |
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STLED25JR Datasheet(HTML) 8 Page - STMicroelectronics |
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8 / 30 page  Electrical characteristics STLED25 8/30 Doc ID 022323 Rev 3 4 Electrical characteristics - 30 °C < TA < 85 °C, VIN = 3.7 V; VOUT = 7.5 V, EN13 = EN45 = VIN, typical values are at TA = 25 °C, unless otherwise specified. Table 6. Electrical characteristics Symbol Parameter Test conditions Min. Typ. Max. Unit General section VIN Operating input voltage 2.3 3.7 5.5 V Iq Shutdown mode EN13 = EN45 = 0 0.5 2 µA VUVLO Undervoltage lockout threshold VIN rising 1.9 2.0 V VIN falling 1.7 1.8 fSW Switching frequency 2.25 2.5 2.75 MHz IOUT Continuous output current (1) VIN = 2.5 V, VOUT = 6.2 V 125 mA IPK Inductor peak current 550 650 mA ν Application efficiency (1) (VIN = 3.7 V; VOUT = 6.2 V; see application schematic) IOUT = 50 mA 84 % IOUT = 75 mA 86 IOUT = 100 mA 86 ν DC-DC DC-DC converter efficiency IOUT = 100 mA 88 VOVP Overvoltage protection 8.8 9.05 9.3 V OVPHYST Overvoltage protection hysteresis 250 mV TSHDN Thermal shutdown 150 °C Hysteresis 20 °C LEDs current ID1-D5 Current matching -5.5 +5.5 % VSCP Short-circuit protection on LEDs Measured on the Dx pins 1.28 V ILED Absolute channel accuracy 5 mA < ILED < 25 mA, VIN = 2.5 V to 5.5 V -7.5 +7.5 % 2.5 mA < ILED < 5 mA, VIN = 2.5 V to 5.5 V -10 10 % ISET Voltage reference RSET = 200 k to 15 k 1.28 V Current mirror ILED / ISET 390 A/A VCSH Current source headroom voltage 135 mV |
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