Datasheet LT1505 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | Constant-Current/Voltage High Efficiency Battery Charger |
| 页数 / 页 | 16 / 2 — ABSOLUTE MAXIMUM RATINGS (Note 1). PACKAGE/ORDER INFORMATION. NOTE:. … |
| 文件格式/大小 | PDF / 170 Kb |
| 文件语言 | 英语 |
ABSOLUTE MAXIMUM RATINGS (Note 1). PACKAGE/ORDER INFORMATION. NOTE:. ELECTRICAL CHARACTERISTICS The
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LT1505
W W W U ABSOLUTE MAXIMUM RATINGS (Note 1)
VCC, CLP, CLN, INFET, UV, 3CELL, FLAG.. 27V TGATE, BGATE Current Continuous ... 0.2A SW Voltage with Respect to GND ... – 2V TGATE, BGATE Output Energy (per cycle) ... 2µJ BOOST, BOOSTC Voltage with Respect to VCC ... 10V Maximum Operating VCC ... 24V GBIAS ... 10V Operating Ambient Temperature Range ... 0°C to 70°C SYNC, BAT2, BAT, SENSE, SPIN .. 20V Operating Junction Temperature Range .. 0°C to 125°C VC, PROG, VFB, 4.1V, 4.2V .. 7V Storage Temperature Range ... – 65°C to 150°C CAP, SHDN .. ±3mA Lead Temperature (Soldering, 10 sec).. 300°C
U W U PACKAGE/ORDER INFORMATION
TOP VIEW ORDER PART TOP VIEW ORDER PART BOOST 1 28 PGND NUMBER BOOST 1 28 PGND NUMBER TGATE 2 27 BGATE TGATE 2 27 BGATE SW 3 26 GBIAS LT1505CG SW 3 26 GBIAS LT1505CG-1 SYNC 4 25 BOOSTC SYNC 4 25 BOOSTC SHDN 5 24 VCC SHDN 5 24 VCC AGND 6 23 BAT AGND 6 23 BAT UV 7 22 SPIN UV 7 22 SPIN INFET 8 21 SENSE INFET 8 21 SENSE CLP 9 20 BAT2 NC 9 20 BAT2 CLN 10 19 PROG NC 10 19 PROG COMP1 11 18 VC GND 11 18 VC CAP 12 17 VFB CAP 12 17 VFB FLAG 13 16 3CELL FLAG 13 16 3CELL 4.1V 14 15 4.2V 4.1V 14 15 4.2V G PACKAGE G PACKAGE 28-LEAD PLASTIC SSOP
NOTE:
LT1505CG-1 DOES NOT 28-LEAD PLASTIC SSOP HAVE INPUT CURRENT T T JMAX = 125°C, θJA = 100°C/ W JMAX = 125°C, θJA = 100°C/ W LIMITING FUNCTION. Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VCC = 18V, VBAT = 12.6V, VCLN = VCC (LT1505), no load on any outputs unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS Overall
Supply Current VCC ≤ 24V ● 12 15 mA Sense Amplifier CA1 Gain and Input Offset Voltage 11V ≤ VCC ≤ 24V , 0V ≤ VBAT ≤ 20V (With RS2 = 200Ω, RS3 = 200Ω) RPROG = 4.93k 95 100 105 mV (Measured across RS1, Figure 1) (Note 2) RPROG = 4.93k ● 92 108 mV RPROG = 49.3k 7 10 13 mV BOOST Pin Current VBOOST = VSW + 8V, 0V ≤ VSW ≤ 20V TGATE High 2 3 mA TGATE Low 2 3 mA BOOSTC Pin Current VBOOSTC = VCC + 8V 1 mA
Reference
Reference Voltage (Note 3) RPROG = 4.93k, Measured at VFB with VA 2.453 2.465 2.477 V Supplying IPROG and Switching Off Reference Voltage Tolerance 11V ≤ VCC ≤ 24V ● 2.441 2.489 V 1505fc 2
W W W U ABSOLUTE MAXIMUM RATINGS (Note 1)
VCC, CLP, CLN, INFET, UV, 3CELL, FLAG.. 27V TGATE, BGATE Current Continuous ... 0.2A SW Voltage with Respect to GND ... – 2V TGATE, BGATE Output Energy (per cycle) ... 2µJ BOOST, BOOSTC Voltage with Respect to VCC ... 10V Maximum Operating VCC ... 24V GBIAS ... 10V Operating Ambient Temperature Range ... 0°C to 70°C SYNC, BAT2, BAT, SENSE, SPIN .. 20V Operating Junction Temperature Range .. 0°C to 125°C VC, PROG, VFB, 4.1V, 4.2V .. 7V Storage Temperature Range ... – 65°C to 150°C CAP, SHDN .. ±3mA Lead Temperature (Soldering, 10 sec).. 300°C
U W U PACKAGE/ORDER INFORMATION
TOP VIEW ORDER PART TOP VIEW ORDER PART BOOST 1 28 PGND NUMBER BOOST 1 28 PGND NUMBER TGATE 2 27 BGATE TGATE 2 27 BGATE SW 3 26 GBIAS LT1505CG SW 3 26 GBIAS LT1505CG-1 SYNC 4 25 BOOSTC SYNC 4 25 BOOSTC SHDN 5 24 VCC SHDN 5 24 VCC AGND 6 23 BAT AGND 6 23 BAT UV 7 22 SPIN UV 7 22 SPIN INFET 8 21 SENSE INFET 8 21 SENSE CLP 9 20 BAT2 NC 9 20 BAT2 CLN 10 19 PROG NC 10 19 PROG COMP1 11 18 VC GND 11 18 VC CAP 12 17 VFB CAP 12 17 VFB FLAG 13 16 3CELL FLAG 13 16 3CELL 4.1V 14 15 4.2V 4.1V 14 15 4.2V G PACKAGE G PACKAGE 28-LEAD PLASTIC SSOP
NOTE:
LT1505CG-1 DOES NOT 28-LEAD PLASTIC SSOP HAVE INPUT CURRENT T T JMAX = 125°C, θJA = 100°C/ W JMAX = 125°C, θJA = 100°C/ W LIMITING FUNCTION. Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VCC = 18V, VBAT = 12.6V, VCLN = VCC (LT1505), no load on any outputs unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS Overall
Supply Current VCC ≤ 24V ● 12 15 mA Sense Amplifier CA1 Gain and Input Offset Voltage 11V ≤ VCC ≤ 24V , 0V ≤ VBAT ≤ 20V (With RS2 = 200Ω, RS3 = 200Ω) RPROG = 4.93k 95 100 105 mV (Measured across RS1, Figure 1) (Note 2) RPROG = 4.93k ● 92 108 mV RPROG = 49.3k 7 10 13 mV BOOST Pin Current VBOOST = VSW + 8V, 0V ≤ VSW ≤ 20V TGATE High 2 3 mA TGATE Low 2 3 mA BOOSTC Pin Current VBOOSTC = VCC + 8V 1 mA
Reference
Reference Voltage (Note 3) RPROG = 4.93k, Measured at VFB with VA 2.453 2.465 2.477 V Supplying IPROG and Switching Off Reference Voltage Tolerance 11V ≤ VCC ≤ 24V ● 2.441 2.489 V 1505fc 2