Datasheet LTC4100 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | Smart Battery Charger Controller |
| Pages / Page | 30 / 4 — e lecTrical characTerisTics The. denotes the specifications which apply … |
| File Format / Size | PDF / 328 Kb |
| Document Language | English |
e lecTrical characTerisTics The. denotes the specifications which apply over the full operating
Model Line for this Datasheet
Text Version of Document
LTC4100
e lecTrical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VDCIN = 20V, VDD = 3.3V, VBAT = 12V unless otherwise noted. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS AC Present Comparator
VACP DCDIV Threshold VDCDIV Rising from 1V to 1.4V ● 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) ● 95 100 105 kΩ RTHB = 54.9kΩ ±1% SafetySignal Trip (RES_IDEAL/RES_COLD) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) ● 28.5 30 31.5 kΩ RTHB = 54.9kΩ ±1% SafetySignal Trip (RES_HOT/RES_IDEAL) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) ● 2.85 3 3.15 kΩ RTHB = 54.9kΩ ±1% SafetySignal Trip (RES_UR/RES_HOT) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) ● 425 500 575 Ω RTHB = 54.9kΩ ±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 5) mA All Values of RVLIM 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) 97.3 107.3 mV Charging Current = 0x0FFC (0x1000 Note 7) Charging Voltage Resolution Guaranteed Monotonic (2.9V ≤ VBAT ≤ 28V) 11 Bits Charging Voltage Granularity 16 mV Charging Voltage Limit RVLIM = 0 8.730 8.800 8.870 V Charging Voltage = 0x2260 (Note 7) RVLIM = 10k ±1% 12.999 13.104 13.209 V Charging Voltage = 0x3330 (Note 7) RVLIM = 33k ±1% 17.269 17.408 17.547 V Charging Voltage = 0x4400 (Note 7) RVLIM = 100k ±1% 21.538 21.712 21.886 V Charging Voltage = 0x5400 DCIN ≥ 22V (Note 7) RVLIM = 0pen (or Short to VDD) 27.781 28.006 28.231 V Charging Voltage = 0x6D60 DCIN ≥ 29V (Note 7) 4100fc 4 For more information www.linear.com/LTC4100
e lecTrical characTerisTics The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VDCIN = 20V, VDD = 3.3V, VBAT = 12V unless otherwise noted. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS AC Present Comparator
VACP DCDIV Threshold VDCDIV Rising from 1V to 1.4V ● 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) ● 95 100 105 kΩ RTHB = 54.9kΩ ±1% SafetySignal Trip (RES_IDEAL/RES_COLD) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) ● 28.5 30 31.5 kΩ RTHB = 54.9kΩ ±1% SafetySignal Trip (RES_HOT/RES_IDEAL) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) ● 2.85 3 3.15 kΩ RTHB = 54.9kΩ ±1% SafetySignal Trip (RES_UR/RES_HOT) RTHA = 1130Ω ±1%, CTH = 1nF (Note 6) ● 425 500 575 Ω RTHB = 54.9kΩ ±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 5) mA All Values of RVLIM 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) 97.3 107.3 mV Charging Current = 0x0FFC (0x1000 Note 7) Charging Voltage Resolution Guaranteed Monotonic (2.9V ≤ VBAT ≤ 28V) 11 Bits Charging Voltage Granularity 16 mV Charging Voltage Limit RVLIM = 0 8.730 8.800 8.870 V Charging Voltage = 0x2260 (Note 7) RVLIM = 10k ±1% 12.999 13.104 13.209 V Charging Voltage = 0x3330 (Note 7) RVLIM = 33k ±1% 17.269 17.408 17.547 V Charging Voltage = 0x4400 (Note 7) RVLIM = 100k ±1% 21.538 21.712 21.886 V Charging Voltage = 0x5400 DCIN ≥ 22V (Note 7) RVLIM = 0pen (or Short to VDD) 27.781 28.006 28.231 V Charging Voltage = 0x6D60 DCIN ≥ 29V (Note 7) 4100fc 4 For more information www.linear.com/LTC4100
