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TPS60230 Datasheet(PDF) 3 Page - Texas Instruments |
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TPS60230 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 21 page  www.ti.com ELECTRICAL CHARACTERISTICS TPS60230 SLVS516A – MAY 2004 – REVISED JUNE 2004 V I = 3.6 V, EN1 = EN2 = VI, TA = -40°C to 85°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VOLTAGE AND CURRENT VI Input voltage range IO = 0 mA to 75 mA 2.7 6.5 V VI = 4.2 V, x1-mode, EN1 = EN2 = 1, ISET = 20 µA 200 µA IQ Operating quiescent current IO = 0 mA, x1.5-mode 2.1 mA ISD Shutdown current EN2 = EN1 = GND 0.1 1 µA CHARGE PUMP STAGE VOUT Overvoltage limit LED1 unconnected, VI = 4.2 V 5.5 V Startup time CO = 1 µF, IDX≥ 0.9 IDX, set 375 µs Softstart duration 160 µs f Switching frequency 0.75 1 1.25 MHz η Efficiency VI = 3.7 V, ILED = 15 mA each, VDX = 3.1 V 83% Shutdown temperature Temperature rising 160 °C Shutdown temperature hysteresis 20 °C Input current limit EN2 = EN1 = 1, ISET = 100 µA 350 mA CURRENT SINKS Recommended maximum current per cur- 3.2 V ≤ V I≤ 6.5 V 25 mA IDx rent sink Current into each current sink when Iset is 50 mA IDx 3.0 V ≤ V I≤ 6.5 V, ISET shorted to GND shorted to GND Current matching between any two outputs VDx = 3.1 V, TA = 25°C –2% 0.4% 2% 3.2 V ≤ V I≤ 6.5 V, VDx = 3.1 V, EN1 = EN2 = 1, ±3% Line regulation ISET = 80 µA EN2 = 0, EN1 = 1 200 VISET Reference voltage for current set EN2 = 1, EN1 = 0 400 mV EN2 = 1, EN1 = 1 580 600 620 Iset Recommended ISET pin current range 4 130 µA k IDx to Iset current ratio EN2 = EN1 = 1, ISET = 80 µA 230 260 280 EN2 = 0, EN1 = 1 200 Vsource Voltage at Dx to GND EN2 = 1, EN1 = 0 300 mV EN2 = 1, EN1 = 1 400 ENABLE 1, ENABLE 2 VIH EN1, EN2 high level input voltage 1.3 V VIL EN1, EN2 low level input voltage 0.3 V EN1, EN2 trip point hysteresis 50 mV IIKG EN2 input leakage current EN1, EN2 = GND or EN2 = VI, VI = 6.5 V 0.01 1 µA II EN1 input current EN1 = VI, VI = 4.2 V 11 15 µA V(UVLO) Undervoltage lockout threshold Input voltage falling 2.1 V Undervoltage lockout hysteresis 50 mV Frequency range at PWM 0 50 kHz Recommended ON-time for PWM signal 2.5 µs Delay time when EN1 = EN2 go to GND after which Shutdown delay time 0.5 0.85 1.5 ms the TPS60230 shuts down completely 3 |
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