Datasheet LTC1960 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | Dual Battery Charger/ Selector with SPI Interface |
| 页数 / 页 | 28 / 4 — ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply … |
| 修订版 | C |
| 文件格式/大小 | PDF / 547 Kb |
| 文件语言 | 英语 |
ELECTRICAL CHARACTERISTICS. The. denotes the specifications which apply over the full operating
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LTC1960
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range (Note 7), otherwise specifications are at TA = 25°C. VDCIN = 20V, VBAT1 = 12V, VBAT2 = 12V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS DACs
IRES IDAC Resolution Guaranteed Monotonic Above IMAX/16 10 bits IDAC Pulse Period: tIP Normal Mode 6 10 15 µs tILOW Low Current Mode 50 ms VRES VDAC Resolution Guaranteed Monotonic (5V < VBAT < 25V) 11 bits VSTEP VDAC Granularity 16 mV VOFF VDAC Offset (Note 6) 0.8 V tVP VDAC Pulse Period 7 11 16.5 µs
Charge MUX Switches
tONC GCH1/GCH2 Turn-On Time VGCHX – VSCHX > 3V, CLOAD = 3nF 5 10 ms tONC GCH1/GCH2 Turn-Off Time VGCHX – VSCHX < 1V, from Time of VCSN < 3 7 µs VBATX – 30mV, CLOAD = 3nF VCON CH Gate Clamp Voltage ILOAD = 1µA GCH1 VGCH1 – VSCH1 5 5.8 7 V GCH2 VGCH2 – VSCH2 5 5.8 7 V VCOFF CH Gate Off Voltage ILOAD = 10µA GCH1 VGCH1 – VSCH1 –0.8 –0.4 0 V GCH2 VGCH2 – VSCH2 –0.8 –0.4 0 V VTOC CH Switch Reverse Turn-Off Voltage VCSN – VBATX, 5V ≤ VBATX ≤ 28V l 5 20 40 mV VFC CH Switch Forward Regulation Voltage VBATX – VCSN, 5V ≤ VBATX ≤ 28V l 15 35 60 mV GCH1/GCH2 Active Regulation: VGCHX – VSCHX = 1.5V IOC(SRC) Max Source Current –2 µA IOC(SNK) Max Sink Current 2 µA VCHMIN BATX Voltage Below Which Charging Is Inhibited (Note 8) 3.5 4.7 V
PowerPath Switches
tDLY Blanking Period After UVLO Trip Switches Held Off 250 ms tPPB Blanking Period After LOPWR Trip Switches in 3-Diode Mode 1 sec tONPO GB1O/GB2O/GDCO Turn-On Time VGS < –3V, from Time of Battery/DC l 5 10 µs Removal, or LOPWR Indication tOFFPO GB1O/GB2O/GDCO Turn-Off Time VGS > –1V, from Time of Battery/DC l 3 7 µs Removal, or LOPWR Indication VPONO Output Gate Clamp Voltage ILOAD = 1µA GB1O Highest (VBAT1 or VSCP) – VGB1O 4.75 6.25 7 V GB2O Highest (VBAT2 or VSCP) – VGB2O 4.75 6.25 7 V GDCO Highest (VDCIN or VSCP) – VGDCO 4.75 6.25 7 V VPOFFO Output Gate Off Voltage ILOAD = –25µA GB1O Highest (VBAT1 or VSCP) – VGB1O 0.18 0.25 V GB2O Highest (VBAT2 or VSCP) – VGB2O 0.18 0.25 V GDCO Highest (VDCIN or VSCP) – VGDCO 0.18 0.25 V VTOP PowerPath Switch Reverse Turn-Off Voltage VSCP – VBATX or VSCP – VDCIN l 5 20 60 mV 6V ≤ VSCP ≤ 28V VFP PowerPath Switch Forward Regulation Voltage VBATX – VSCP or VDCIN – VSCP l 0 25 50 mV 6V ≤ VSCP ≤ 28V GDCI/GB1I/GB2I Active Regulation (Note 4) IOP(SRC) Source Current –4 µA IOP(SNK) Sink Current 75 µA Rev. C 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuit Timing Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range (Note 7), otherwise specifications are at TA = 25°C. VDCIN = 20V, VBAT1 = 12V, VBAT2 = 12V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS DACs
IRES IDAC Resolution Guaranteed Monotonic Above IMAX/16 10 bits IDAC Pulse Period: tIP Normal Mode 6 10 15 µs tILOW Low Current Mode 50 ms VRES VDAC Resolution Guaranteed Monotonic (5V < VBAT < 25V) 11 bits VSTEP VDAC Granularity 16 mV VOFF VDAC Offset (Note 6) 0.8 V tVP VDAC Pulse Period 7 11 16.5 µs
Charge MUX Switches
tONC GCH1/GCH2 Turn-On Time VGCHX – VSCHX > 3V, CLOAD = 3nF 5 10 ms tONC GCH1/GCH2 Turn-Off Time VGCHX – VSCHX < 1V, from Time of VCSN < 3 7 µs VBATX – 30mV, CLOAD = 3nF VCON CH Gate Clamp Voltage ILOAD = 1µA GCH1 VGCH1 – VSCH1 5 5.8 7 V GCH2 VGCH2 – VSCH2 5 5.8 7 V VCOFF CH Gate Off Voltage ILOAD = 10µA GCH1 VGCH1 – VSCH1 –0.8 –0.4 0 V GCH2 VGCH2 – VSCH2 –0.8 –0.4 0 V VTOC CH Switch Reverse Turn-Off Voltage VCSN – VBATX, 5V ≤ VBATX ≤ 28V l 5 20 40 mV VFC CH Switch Forward Regulation Voltage VBATX – VCSN, 5V ≤ VBATX ≤ 28V l 15 35 60 mV GCH1/GCH2 Active Regulation: VGCHX – VSCHX = 1.5V IOC(SRC) Max Source Current –2 µA IOC(SNK) Max Sink Current 2 µA VCHMIN BATX Voltage Below Which Charging Is Inhibited (Note 8) 3.5 4.7 V
PowerPath Switches
tDLY Blanking Period After UVLO Trip Switches Held Off 250 ms tPPB Blanking Period After LOPWR Trip Switches in 3-Diode Mode 1 sec tONPO GB1O/GB2O/GDCO Turn-On Time VGS < –3V, from Time of Battery/DC l 5 10 µs Removal, or LOPWR Indication tOFFPO GB1O/GB2O/GDCO Turn-Off Time VGS > –1V, from Time of Battery/DC l 3 7 µs Removal, or LOPWR Indication VPONO Output Gate Clamp Voltage ILOAD = 1µA GB1O Highest (VBAT1 or VSCP) – VGB1O 4.75 6.25 7 V GB2O Highest (VBAT2 or VSCP) – VGB2O 4.75 6.25 7 V GDCO Highest (VDCIN or VSCP) – VGDCO 4.75 6.25 7 V VPOFFO Output Gate Off Voltage ILOAD = –25µA GB1O Highest (VBAT1 or VSCP) – VGB1O 0.18 0.25 V GB2O Highest (VBAT2 or VSCP) – VGB2O 0.18 0.25 V GDCO Highest (VDCIN or VSCP) – VGDCO 0.18 0.25 V VTOP PowerPath Switch Reverse Turn-Off Voltage VSCP – VBATX or VSCP – VDCIN l 5 20 60 mV 6V ≤ VSCP ≤ 28V VFP PowerPath Switch Forward Regulation Voltage VBATX – VSCP or VDCIN – VSCP l 0 25 50 mV 6V ≤ VSCP ≤ 28V GDCI/GB1I/GB2I Active Regulation (Note 4) IOP(SRC) Source Current –4 µA IOP(SNK) Sink Current 75 µA Rev. C 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Test Circuit Timing Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts