Datasheet LTC4101 (Analog Devices) - 4
| Fabricante | Analog Devices |
| Descripción | Smart Battery Charger Controller |
| Páginas / Página | 30 / 4 — ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply … |
| Formato / tamaño de archivo | PDF / 261 Kb |
| Idioma del documento | Inglés |
ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply over the full operating
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LTC4101
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VDCIN = 20V, VDD = 3.3V, VBAT = 4V unless otherwise noted. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VBGATE at Shutdown ITGATE = 1μA 100 mV
AC Present Comparator
VACP DCDIV Threshold VDCDIV Rising from 1V to 1.4V l 1.14 1.20 1.26 V DCDIV Hysteresis 25 mV DCDIV Input Bias Current VDCDIV = 1.2V –1 1 μA ACP VOH IACP = –2mA 2 V ACP VOL IACP = 1mA 0.5 V DCDIV to ACP Delay VDCDIV = 1.3V 10 μs
SafetySignal Decoder
SafetySignal Trip (RES_COLD/RES_OR) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) l 95 100 105 kΩ RTHB = 54.9Ω ±1% SafetySignal Trip (RES_IDEAL/RES_COLD) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) l 28.5 30 31.5 kΩ RTHB = 54.9Ω ±1% SafetySignal Trip (RES_HOT/RES_IDEAL) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) l 2.85 3 3.15 kΩ RTHB = 54.9Ω ±1% SafetySignal Trip (RES_UR/RES_HOT) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) l 425 500 575 Ω RTHB = 54.9Ω ±1% Time Between SafetySignal Measurements DCDIV = 1.3V 32 ms DCDIV = 1V 250 ms
DACs
Charging Current Resolution Guaranteed Monotonic Above IMAX/16 10 Bits Charging Current Granularity RILIM = 0 1 mA RILIM = 10k ±1% 2 mA RILIM = 33k ±1% 4 mA RILIM = Open (or Short to VDD) 4 mA Wake-Up Charging Current (IWAKE-UP) All Values of RILIM 80 (Note mA All Values of RVLIM 5) Charging Current Limit RILIM = 0 (0-1A) 97.3 107.3 mV CSP – BAT Charging Current = 0x03FF (0x0400 Note 7) RILIM = 10k ±1% (0-2A) 97.3 107.3 mV Charging Current = 0x07FE (0x0800 Note 7) RILIM = 33k ±1% (0-3A) 72.3 82.3 mV Charging Current = 0x0BFC (0x0C00 Note 7) RILIM = 0pen (or Short to VDD) (0-4A) l 97.3 107.3 mV Charging Current = 0x0FFC (0x1000 Note 7) Charging Voltage Resolution Guaranteed Monotonic (2.9V ≤ VBAT ≤ 5.6V) 11 Bits Charging Voltage Granularity 16 mV Charging Voltage Limit RVLIM = 0 4.206 4.240 4.274 V Charging Voltage = 0x1090 (Note 7) RVLIM = 10k ±1% 4.270 4.304 4.338 V Charging Voltage = 0x10D0 (Note 7) RVLIM = 33k ±1% 4.397 4.432 4.467 V Charging Voltage = 0x1150 (Note 7) RVLIM = 100k ±1% 4.476 4.512 4.548 V Charging Voltage = 0x11A0 (Note 7) RVLIM = 0pen (or Short to VDD) 5.460 5.504 5.548 V Charging Voltage = 0x1580 (Note 7) 4101fa 4
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VDCIN = 20V, VDD = 3.3V, VBAT = 4V unless otherwise noted. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VBGATE at Shutdown ITGATE = 1μA 100 mV
AC Present Comparator
VACP DCDIV Threshold VDCDIV Rising from 1V to 1.4V l 1.14 1.20 1.26 V DCDIV Hysteresis 25 mV DCDIV Input Bias Current VDCDIV = 1.2V –1 1 μA ACP VOH IACP = –2mA 2 V ACP VOL IACP = 1mA 0.5 V DCDIV to ACP Delay VDCDIV = 1.3V 10 μs
SafetySignal Decoder
SafetySignal Trip (RES_COLD/RES_OR) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) l 95 100 105 kΩ RTHB = 54.9Ω ±1% SafetySignal Trip (RES_IDEAL/RES_COLD) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) l 28.5 30 31.5 kΩ RTHB = 54.9Ω ±1% SafetySignal Trip (RES_HOT/RES_IDEAL) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) l 2.85 3 3.15 kΩ RTHB = 54.9Ω ±1% SafetySignal Trip (RES_UR/RES_HOT) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) l 425 500 575 Ω RTHB = 54.9Ω ±1% Time Between SafetySignal Measurements DCDIV = 1.3V 32 ms DCDIV = 1V 250 ms
DACs
Charging Current Resolution Guaranteed Monotonic Above IMAX/16 10 Bits Charging Current Granularity RILIM = 0 1 mA RILIM = 10k ±1% 2 mA RILIM = 33k ±1% 4 mA RILIM = Open (or Short to VDD) 4 mA Wake-Up Charging Current (IWAKE-UP) All Values of RILIM 80 (Note mA All Values of RVLIM 5) Charging Current Limit RILIM = 0 (0-1A) 97.3 107.3 mV CSP – BAT Charging Current = 0x03FF (0x0400 Note 7) RILIM = 10k ±1% (0-2A) 97.3 107.3 mV Charging Current = 0x07FE (0x0800 Note 7) RILIM = 33k ±1% (0-3A) 72.3 82.3 mV Charging Current = 0x0BFC (0x0C00 Note 7) RILIM = 0pen (or Short to VDD) (0-4A) l 97.3 107.3 mV Charging Current = 0x0FFC (0x1000 Note 7) Charging Voltage Resolution Guaranteed Monotonic (2.9V ≤ VBAT ≤ 5.6V) 11 Bits Charging Voltage Granularity 16 mV Charging Voltage Limit RVLIM = 0 4.206 4.240 4.274 V Charging Voltage = 0x1090 (Note 7) RVLIM = 10k ±1% 4.270 4.304 4.338 V Charging Voltage = 0x10D0 (Note 7) RVLIM = 33k ±1% 4.397 4.432 4.467 V Charging Voltage = 0x1150 (Note 7) RVLIM = 100k ±1% 4.476 4.512 4.548 V Charging Voltage = 0x11A0 (Note 7) RVLIM = 0pen (or Short to VDD) 5.460 5.504 5.548 V Charging Voltage = 0x1580 (Note 7) 4101fa 4