LT6110 ケーブル /ワイヤ電圧降下 補償器 特長 概要 離れた場所の負荷に対する電圧レギュレーションを 10 倍改善 n 抵抗で調整可能な電圧レギュレータに最適 n 1 本の抵抗で利得を設定可能 n ハイサイド電流検出: 最大 3Aを得るため20mΩの検出抵抗を内蔵 外付けの検出抵抗を使用可能 n 入力オフセット電圧:最大 300µV n 出力電流精度:最大 1% n 電源電流:最大 30µA n 電源電圧範囲:2V ~ 50V n –40°C ~ 125°Cの範囲で完全に規定 n 高さの低い (1mm)ThinSOT ™パッケージおよび (2mm×2mmの) DFN パッケージで供給 LT®6110 n LT6110 2 LT6110 DC アプリケーション n n n n n 自動車用および産業用電力配分装置 USB 電源 DC/DCコンバータ プラグインDCアダプタ Power over Ethernet L、LT、LTC、LTM、Linear Technology、リニアのロゴ、および μModuleはリニアテクノロジー社 の登録商標です。ThinSOTはリニアテクノロジー社の商標です。その他すべての商標の所有権 は、それぞれの所有者に帰属します。 標準的応用例 IN OUT REGULATOR RWIRE ILOAD VREG VLOAD RIN FB +IN V+ RS –IN IOUT LT6110 + – VLOAD UNCOMPENSATED 5V 2A IMON V– REMOTE LOAD 5V GND 500mV/DIV VIN 1A VLOAD COMPENSATED 6110 TA01 ILOAD 200µs/DIV 6110fa 詳細:www.linear-tech.co.jp/LT6110 1 LT6110 絶対最大定格Note 1 全電源電圧(V+ ~ V–) .......................................................... 55V +IN、–IN、IOUT、IMON ~ V– 電圧 ............................................V+ +IN、–IN、IOUT、IMON 電流 .............................................. 10mA IOUT ~ IMON 電圧 ................................................... 36V、–0.6V V+、+IN ~ IOUT 電圧 ............................................................ 36V 差動入力電圧 .........................................................................V+ RSENSE 電流(Note 2) 連続 ................................................................................... 3A 過渡(<0.1 秒)................................................................... 5A 規定温度範囲(Note 3) LT6110I............................................................ –40°C ~ 85°C LT6110H ........................................................ –40°C ~ 125°C 接合部温度.......................................................................150°C 保存温度範囲.................................................... –65°C ~ 150°C リード温度(半田付け、10 秒) TS8................................................................................300°C ピン配置 TOP VIEW TOP VIEW NC* 1 IOUT 2 IMON 3 V– 4 8 NC* +IN 1 8 +IN 7 V+ 6 RS 5 –IN V+ 2 RS 3 –IN 4 TS8 PACKAGE 8-LEAD PLASTIC TSOT-23 TJMAX = 150°C, θJA = 195°C/W *NC PIN NOT INTERNALLY CONNECTED 9 V– 7 IOUT 6 IMON 5 V– DC PACKAGE 8-LEAD (2mm × 2mm) PLASTIC DFN TJMAX = 150°C, θJA = 80.6°C/W EXPOSED PAD (PIN 9) IS V–, MUST BE SOLDERED TO PCB *NC PIN NOT INTERNALLY CONNECTED 発注情報 * LT6110ITS8#TRMPBF LT6110ITS8#TRPBF LTGCQ 8-Lead Plastic TSOT-23 –40°C to 85°C LT6110HTS8#TRMPBF LT6110HTS8#TRPBF LTGCQ 8-Lead Plastic TSOT-23 –40°C to 125°C LT6110IDC#TRMPBF LT6110IDC#TRPBF LGCP 8-Lead (2mm × 2mm) Plastic DFN –40°C to 85°C LT6110HDC#TRMPBF LT6110HDC#TRPBF LGCP 8-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C TRM=500 個。* 温度グレードは出荷時のコンテナのラベルで識別されます。 さらに広い動作温度範囲で規定されるデバイスについては、弊社または弊社代理店にお問い合わせください。 鉛仕上げの製品の詳細については、弊社または弊社代理店にお問い合わせください。 無鉛仕上げの製品マーキングの詳細については、http://www.linear-tech.co.jp/leadfree/をご覧ください。 テープアンドリールの仕様の詳細については、http://www.linear-tech.co.jp/tapeandreel/をご覧ください。 6110fa 2 詳細:www.linear-tech.co.jp/LT6110 LT6110 電気的特性 I+IN 1.2V SYMBOL PARAMETER V+ Supply Range VOS Amplifier Input Offset Voltage ∆VOS/∆I+IN TA l 100µA VIOUT – VIMON V+ 25C CONDITIONS MIN l 0°C ≤ TA ≤ 85°C (Note 5) 85°C ≤ TA ≤ 125°C (Note 5) –40°C ≤ TA ≤ 0°C (Note 5) Amplifier Input Offset Voltage Change with I+IN = 10µA to 1mA I+IN 0°C ≤ TA ≤ 85°C (Note 6) 5V V– TYP 2.0 VIMON MAX 0V UNITS 50 V 100 300 400 500 550 µV µV µV µV 0.15 0.3 0.5 1.5 mV/mA mV/mA mV/mA l l l l l ∆VOS/∆VIOUT Amplifier Input Offset Voltage Change with VIOUT = 0.4V to 5V IOUT Voltage l 0.005 0.02 mV/V ∆VOS/∆VIMON Amplifier Input Offset Voltage Change with VIMON = 0V to 1V IMON Voltage l 0.3 1 mV/V ∆VOS/∆T Amplifier Input Offset Voltage Drift l 1 IB Amplifer Input Bias Current (–IN) + V = 5V 35 l IOS Amplifier Input Offset Current V+ = 5V PSRR Power Supply Rejection Ratio V+ = 2.0V to 36V V+ = 36V to 50V IOUT Current Error (Note 4) (Referred to I+IN) I+IN = 10µA 0°C ≤ TA ≤ 85°C, (Note 6) I+IN = 100µA 0°C ≤ TA ≤ 85°C, (Note 6) I+IN = 1mA 0°C ≤ TA ≤ 85°C, (Note 6) IMON Current Error (Note 4) (Referred to I+IN) I+IN = 10µA 0°C ≤ TA ≤ 85°C, (Note 6) I+IN = 100µA 0°C ≤ TA ≤ 85°C, (Note 6) I+IN = 1mA 0°C ≤ TA ≤ 85°C, (Note 6) l l 96 90 µV/°C 70 100 nA nA 1 nA 110 100 dB dB 0.6 1.6 2 2.5 % % % 0.5 1 1.5 2.3 % % % 0.75 2.5 3 4 % % % 1.5 3 3.5 5 % % % 1.5 3 3.5 5 % % % 1.7 l l 4 5 6 % % % l l l l l l l l l l ∆IIOUT/VIOUT IOUT Current Error Change with IOUT Voltage (Note 4) VIOUT = 0.4V to 3.5V VIOUT = 0.4V to 5V l l 0.2 0.4 %/V %/V ∆IIMON/VIMON IMON Current Error Change with IMON Voltage (Note 4) VIMON = 0V to 3.1V, VIOUT = 5V l 0.2 %/V 1 mA 16 30 50 µA µA 30 50 100 µA µA 0.02 0.0225 +IN Current Range IS Supply Current l 0.01 + V = 5V, I+IN = 0µA l V+ = 50V, I+IN = 0µA, VIOUT = 25V l RSENSE RSENSE Resistance (Note 2) BW Signal Bandwidth (–3dB) I+IN = 100µA, RIOUT = 1k tr Rise Time 0.0165 Ω 180 kHz 2 µs 6110fa 詳細:www.linear-tech.co.jp/LT6110 3 LT6110 電気的特性 Note 1 絶対最大定格に記載された値を超えるストレスはデバイスに永続的損傷を与える可 能性がある。長期にわたって絶対最大定格条件に曝すと、デバイスの信頼性と寿命に悪影響 を与える恐れがある。絶対最大定格の他に、LT6110 内の電力損失によってダイ温度が 150°C を超えることがないよう、出力電流と電源電流を制限する必要がある。詳細については、 「アプ リケーション情報」 セクションの 「電力損失」 を参照。 Note 2 RSENSE 抵抗と最大 RSENSE 電流は、特性評価とプロセス・コントロールによって保証さ れている。 Note 3 LT6110Iは–40°C ~ 85°Cで性能仕様に適合することが保証されている。LT6110Hは –40°C ~ 125°Cで性能仕様に適合することが保証されている。 Note 4 規定された誤差はLT6110の出力電流ミラーに関するもので、VOS に起因する誤差や 抵抗許容差を含まない。ほとんどのシステムは100%の誤差修正を提供しないため、適切な 設計により、総システム誤差は規定された誤差未満に補償できる。詳細については、 「アプリ ケーション情報」 のセクションを参照のこと。 Note 5 測定誤差により、自動テストの精度は制限される。これらの測定値は、設計の相関性、 特性評価、および拡張範囲に対するテストによって保証されている。 Note 6 0°C ≤ TA ≤ 85°Cの温度範囲は、–40°C、25°C、および 85°Cのテストに対する特性評価と 相関で保証されている。 標準的性能特性 VOS 800 UNITS 125 100 75 50 25 0 –350 –250 –150 –50 50 150 250 INPUT OFFSET VOLTAGE (µV) 300 TA = 125°C 200 TA = 85°C 100 TA = 0°C 0 TA = –40°C, –55°C TA = 25°C –100 –200 350 I+IN = 100µA VIOUT = 0.4V VIMON = 0V 0 5 10 15 20 25 30 SUPPLY VOLTAGE (V) 35 VOS NUMBER OF UNITS VIOUT = 1.2V 10 VIMON = 0V I+IN = 100µA VOS 40 UNITS –40°C TO 125°C 8 6 4 2 300 200 TA = 85°C TA = 125°C 100 TA = 0°C 0 TA = –40°C, –55°C –100 –200 TA = 25°C 40 45 SUPPLY VOLTAGE (V) 35 VOS 0 0 1.0 2.0 –3.0 –2.0 –1.0 3.0 INPUT OFFSET VOLTAGE TEMPERATURE COEFFICIENT (µV/°C) 300 TA = 25°C 200 TA = 125°C TA = 85°C 100 0 TA = –55°C TA = 0°C –100 –200 0.1 TA = –40°C 1 10 IOUT VOLTAGE (V) V+ = 50V VIMON = 25V I+IN = 100µA 9 8 7 6 TA = 125°C 5 TA = 85°C TA = 25°C 4 3 TA = –55°C 2 TA = 0°C 1 40 6110 G05 6110 G04 IOUT 10 V+ = 36V VIMON = 0V I+IN = 100µA 50 6110 G03 IOUT 400 INPUT OFFSET VOLTAGE (µV) V+ = 5V I+IN = 100µA VIOUT = 25V VIMON = 0V 6110 G02 6110 G01 12 40 400 INPUT OFFSET VOLTAGE (mV) NUMBER OF UNITS 175 VIOUT = 1.2V VIMON = 0V I = 100µA 150 +IN VOS 400 INPUT OFFSET VOLTAGE (µV) V+ = 5V INPUT OFFSET VOLTAGE (µV) VOS 200 0 30 35 TA = –40°C 40 45 IOUT VOLTAGE (V) 50 6110 G06 6110fa 4 詳細:www.linear-tech.co.jp/LT6110 LT6110 標準的性能特性 VSENSE V+ = 5V IMON VOS TA = 25°C TA = 125°C 200 TA = 85°C 100 TA = 0°C 0 TA = –40°C, –55°C –100 8 TA = 85°C 7 6 5 TA = 125°C 4 3 2 TA = 25°C 1 0.5 0 1.0 1.5 2.0 2.5 VSENSE (V) 3.0 3.5 0 0.1 4.0 1 10 IMON VOLTAGE (V) 40 6110 G07 800 UNITS IOUT CURRENT ERROR (%) 100 50 TA = –55°C 1 0 TA = 25°C –1 TA = –40°C TA = 0°C TA = 85°C, 125°C –0.8 –0.4 0 0.4 0.8 IOUT CURRENT ERROR (%) IOUT –3 1.2 3 TA = –55°C 0 –1 TA = 85°C, 125°C TA = 25°C –2 0 5 10 15 20 25 30 SUPPLY VOLTAGE (V) 35 0.1 0.01 +IN CURRENT (mA) TA = –55°C 1 0 1 2 TA = 0°C TA = 85°C, 125°C 35 40 45 SUPPLY VOLTAGE (V) 6110 G12 3 TA = –40°C TA = –55°C 1 0 TA = 25°C –1 50 IOUT V+ = 5V VIMON = 0V 2 I+IN = 100µA –3 2 TA = 25°C –1 –3 40 TA = 85°C, 125°C TA = 0°C –2 –3 –4 0.001 TA = –40°C IOUT TA = 0°C 1 VIOUT = 25V I+IN = 100µA 2 IOUT CURRENT ERROR (%) 1 TA = –40°C 0.1 0.01 OUTPUT CURRENT (mA) 6110 G09 3 IOUT CURRENT ERROR (%) IOUT CURRENT ERROR (%) –200 0.001 TA = –40°C TA = 0°C 6110 G11 +IN V+ = 5V VOUT = 1.2V TA = –55°C –2 6110 G10 2 200 –2 0 –1.2 TA = 25°C 0 VIOUT = 0.4V I+IN = 100µA 2 150 TA = 85°C IOUT 3 200 TA = 125°C 400 IOUT V+ = 5V VIOUT = 1.2V 250 VIMON = 0V I+IN = 100µA 3 600 6110 G08 IOUT 300 NUMBER OF UNITS TA = –40°C, –55°C +IN V+ = 5V VOUT = 1.2V 800 INPUT OFFSET VOLTAGE (µV) 300 –200 1000 VIOUT = V+ = 36V 9 I+IN = 100µA INPUT OFFSET VOLTAGE (mV) INPUT OFFSET VOLTAGE (µV) VOS 10 IOUT CURRENT ERROR (%) VOS 400 V+ = 36V VIMON = 0V 2 I+IN = 100µA TA = –40°C TA = –55°C 1 0 TA = 85°C, 125°C TA = 25°C –1 TA = 0°C –2 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 OUTPUT VOLTAGE (V) 6110 G14 6110 G13 –3 0 10 20 30 OUTPUT VOLTAGE (V) 40 6110 G15 6110fa 詳細:www.linear-tech.co.jp/LT6110 5 LT6110 標準的性能特性 IMON 800 UNITS 200 150 100 50 5 4 TA = –55°C 3 TA = 0°C 2 –1 TA = –40°C TA = 25°C 1 TA = 85°C, 125°C 0 0 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 IMON CURRENT ERROR (%) 0 5 10 15 20 25 30 SUPPLY VOLTAGE (V) 35 IMON I+IN = 1mA I+IN = 100µA 0.2 I+IN = 10µA 0 –55 –35 –15 5 4 TA = –55°C 3 TA = –40°C TA = 0°C 2 1 TA = 125°C –1 TA = 25°C 0 TA = –55°C 5 4 TA = –55°C 3 1 –1 TA = 125°C TA = 25°C 0 5 TA = 85°C 10 15 20 25 30 OUTPUT VOLTAGE (V) 10 I+IN = 0µA 40 TA = 85°C TA = 125°C 30 1 2 0 TA = 25°C TA = –40°C 20 TA = –55°C 10 0.1 0.01 +IN CURRENT (mA) TA = 85°C 35 40 6110 G21 0 5 10 15 20 25 30 35 40 45 50 SUPPLY VOLTAGE (V) 6110 G22 6110 G23 SUPPLY CURRENT (mA) TA = –40°C TA = 125°C TA = 25°C TA = –40°C TA = 0°C 2 V+ = 5V VOUT = 1.2V 50 SUPPLY CURRENT (µA) IMON CURRENT ERROR (%) TA = 0°C 50 +IN –2 –3 0.001 40 45 SUPPLY VOLTAGE (V) V+ = 36V 6 VIMON = 0V I+IN = 100µA 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 OUTPUT VOLTAGE (V) 60 1 –1 35 +IN 3 0 TA = 85°C, 125°C 6110 G20 5 2 TA = 25°C 1 7 TA = 85°C 6110 G19 V+ = 5V 4 VOUT = 1.2V TA = 0°C 6110 G18 V+ = 5V I+IN = 100µA 0 5 25 45 65 85 105 125 TEMPERATURE (°C) IMON TA = –40°C 2 IMON 6 0.6 TA = –55°C 3 IMON 7 V+ = 5V VIMON = 0V ∆IOUT ERROR < 1% 0.4 4 6110 G17 IMON CURRENT ERROR (%) IOUT TO IMON VOLTAGE (V) 0.8 5 –1 40 IMON CURRENT ERROR (%) IOUT VIOUT = 25V I+IN = 100µA 6 0 6110 G16 1.0 7 VIOUT = 0.4V I+IN = 100µA 6 IMON CURRENT ERROR (%) NUMBER OF UNITS V+ = 5V VIOUT = 1.2V 250 VIMON = 0V I+IN = 100µA IMON 7 IMON CURRENT ERROR (%) IMON 300 1.0 0.1 TA = 85°C TA = 125°C TA = –40°C, –55°C 0.01 0.001 TA = 25°C 0.1 0.01 +IN CURRENT (mA) 1 2 6110 G24 6110fa 6 詳細:www.linear-tech.co.jp/LT6110 LT6110 標準的性能特性 RSENSE 50 160 INPUT BIAS CURRENT (nA) 140 120 TA = 125°C 100 80 TA = –40°C 60 TA = –55°C 40 TA = 85°C 20 0 0 5 TA = 25°C VIOUT = V+ VIMON = 0V SHORT DURATION = 1ms 40 30 V+ = 36V 30 20 V+ = 5V 10 25 20 15 10 0 –55 –35 –15 10 15 20 25 30 35 40 45 50 SUPPLY VOLTAGE (V) 35 RSENSE (mΩ) OUTPUT SHORT-CIRCUIT CURRENT (mA) 180 5 –55 –35 –15 5 25 45 65 85 105 125 TEMPERATURE (°C) 5 25 45 65 85 105 125 TEMPERATURE (°C) 6110 G26 6110 G25 6110 G27 PSRR TA = 125°C 200 TA = 25°C TA = 0°C 0 0 0.5 1 1.5 2 2.5 3 3.5 INPUT VOLTAGE (V) 4 4.5 I+IN = 1mA –5 I+IN = 100µA –10 –15 –20 TA = –40°C T = –55°C A –100 I+IN = 10µA 0 TA = 85°C 100 –200 V+ = 5V 5 VIOUT = 1.2V VIMON = 0V V+ = 5V VIOUT = 0.4V VIMON = 0V I+IN = 100µA 5 6110 G28 I+IN = 10µA, RIN = RIOUT = 10k –25 I+IN = 100µA, RIN = RIOUT = 1k I+IN = 1mA, RIN = RIOUT = 100Ω –30 100 10 1k 10k 100k FREQUENCY (Hz) 1M POWER SUPPLY REJECTION RATIO (dB) 300 100 10 GAIN (dB) INPUT OFFSET VOLTAGE (µV) 400 80 70 60 50 40 30 20 10 0 100 1k 10k FREQUENCY (Hz) 1M 0µA 1mA IOUT VSENSE VSENSE VSENSE 50mV/DIV 50mV/DIV 50mV/DIV VIOUT VIOUT VIOUT 20µs/DIV V+ = 5V R+IN = 1k R–IN = 0Ω RIOUT = 1k TO 1.2V 100k 6110 G30 0µA 100µA IOUT 6110 G31 10 6110 G29 0µA 10µA IOUT 20µs/DIV V+ = 5V R+IN = 10k R–IN = 0Ω RIOUT = 10k TO 1.2V V+ = 5V I+IN = 100µA RIN = RIOUT = 1k 90 6110 G32 20µs/DIV V+ = 5V R+IN = 100Ω R–IN = 0Ω RIOUT = 100Ω TO 1.2V 6110 G33 6110fa 詳細:www.linear-tech.co.jp/LT6110 7 LT6110 標準的性能特性 0µA 30µA IMON 0µA 300µA IMON 0µA 3mA IMON VSENSE VSENSE VSENSE 50mV/DIV 50mV/DIV 50mV/DIV VIOUT VIOUT VIOUT 6110 G34 R+IN = 10k R–IN = 0Ω RIMON = 3.4k TO GND 20µs/DIV V+ = 5V R+IN = 1k R–IN = 0Ω RIMON = 340Ω TO GND VSENSE VSENSE 20µs/DIV V+ = 5V 5mV VSENSE 20mV/DIV VIOUT 50mV/DIV 6110 G37 100µs/DIV V+ = 5V R+IN = 49.9Ω R–IN = 0Ω RIOUT = 1k TO 1.2V VSENSE V+ = 5V VSENSE VSENSE 20mV/DIV VSENSE 200mV/DIV VIOUT 50mV/DIV VIOUT 50mV/DIV 20µs/DIV V+ = 5V R+IN = 499Ω R–IN = 0Ω RIOUT = 1k TO 1.2V 6110 G38 VSENSE VSENSE 500mV/DIV VSENSE 500mV/DIV VIOUT 50mV/DIV VIOUT 50mV/DIV 6110 G40 20µs/DIV 6110 G36 R+IN = 100Ω R–IN = 0Ω RIMON = 34Ω TO GND 50mV 1V 20µs/DIV V+ = 5V R+IN = 10k R–IN = 0Ω RIOUT = 1k TO 1.2V 6110 G35 500mV 20µs/DIV V+ = 5V R+IN = 4.99k R–IN = 0Ω RIOUT = 1k TO 1.2V 6110 G39 1V 20µs/DIV V+ = 5V R+IN = 10k R–IN = 10k RIOUT = 1k TO 1.2V 6110 G41 6110fa 8 詳細:www.linear-tech.co.jp/LT6110 LT6110 ピン機能TSOT-23/DFN NC 1/ IOUT RIN 8 2/ 7 IOUT VSENSE/ V+ V+ +IN VSENSE 7/ V– 2 0.1µF 8/ 1 –IN IMON 3/ VSENSE/RIN V– –IN 4/ 5/ 6 5 IMON 3• +IN V+ +IN IMON IMON R+IN 9 DFN 4 IOUT IOUT V– PCB RSPin 6/Pin 3 6110fa 詳細:www.linear-tech.co.jp/LT6110 9 LT6110 ブロック図 VIN IN OUT + VREG RF REGULATOR I+IN ADJ GND VSENSE ILOAD RWIRE VLOAD+ 0.1µF RIN +IN – V+ RS –IN RSENSE 0.020Ω 1k NC + – IOUT RG IMON V– 6110 F01 RWIRE VLOAD– 1. 6110fa 10 詳細:www.linear-tech.co.jp/LT6110 LT6110 アプリケーション情報 LT6110 LT6110 IOUT IMON 2 IOUT LT3980 IMON IR LT1083 LT3080 IC LT6110 LT6110 LT6110 LT6110 3A RSENSE 1 VSENSE 180kHz +IN V+ RIN LT6110 LT6110 I+IN –IN +IN RIN VSENSE VSENSE/RIN +IN IOUT 3 LT6110 IOUT I+IN IMON 5V 0.5V 10% LT6110 2 50% 10% • 50% V+ IMON I+IN 3 V– LT6110 V+ 50V V– 36V 5% V+ LT6110 IOUT 1% V+ 36V 1 0.1µF 10% 0.5% 6110fa 詳細:www.linear-tech.co.jp/LT6110 11 LT6110 アプリケーション情報 +IN –IN +IN –IN LT6110 3 –IN LT6110 IOUT RWIRE 2mA BOOST RSENSE +IN RF IOUT 36V IOUT ILOADMAX 2 IMON IOUT IMON 36V IOUT IMON IOUT IMON –0.6V 36V IOUT IMON NPN IOUT RS LT6110 RSWIRE R 2 RWIRE 1 RSENSE 3A 5A VDROP = (RSWIRE + RRWIRE + RSENSE) • ILOADMAX 0.1 VDROP = (0.125Ω + 0.125Ω + 0.02Ω) • 2A = 0.54V VDROP VIN REGULATOR RF 3.65k RSWIRE 0.125Ω ILOAD VREG I+IN VSENSE RIN FB + +IN V+ RSENSE 20mΩ RG IOUT IMON LT6110 ILOADMAX = 2A – RS –IN + LOAD CIRCUIT OR BATTERY + – – RRWIRE 0.125Ω V– VDROP 2.2 1 VLOAD 6110 F02 1 6110fa 12 詳細:www.linear-tech.co.jp/LT6110 LT6110 アプリケーション情報 2 VDROP R +IN IN IOUTR F RSENSE RWIRE VCOMP = IIOUT • RF VCOMP VDROP VCOMP = IIOUT • RF = VDROP IOUT +IN RIN +IN RIN IOUT IOUT 30µA ≤ IIOUT ≤ 300µA IIOUT =I+IN = VSENSE RIN VSENSE IOUT ILOADMAX • RSENSE RIN = (ILOADMAX • RSENSE ) • RIN = ( 2A • 0.02Ω ) • RF VDROP IIOUT = 3.65k = 270Ω 0.54V 3 LT6110 RF 10% 30µA VSENSE 0.04 = = 148µA RIN 270 IOUT 30µA RSENSE7.5% VOS IOUT RIN 2.5% 2 VLOADERROR = VCOMP • 補償誤差 5V % VLOADERROR = 0.54V • (±10%) = ±0.054V 10 LoadRegCOMP ( %) = VLOADERROR •100 VREG LoadRegCOMP ( %) = ±0.054V •100 = ±1.1% 5V 6110fa 詳細:www.linear-tech.co.jp/LT6110 13 LT6110 アプリケーション情報 RSENSE RSENSE % LoadRegUNCOMP ( %) = RSENSE RSENSE RIN –0.5V •100 = –10% 5V –IN 2 ILOADMAX RF VDROP PCB LT6110 R 2 F LT6110 IOUT 30µA 1 IIOUT 2 3 VDROP VDROP I IIOUT 100µA Q PCB ILOAD VREG VIN RFA REGULATOR FB IQ <30µA I+IN RWIRE VLOAD VSENSE RIN + – +IN V+ RFB RS –IN LOAD 20mΩ RG IOUT IMON LT6110 V– + – 6110 F03 3.3 6110fa 14 詳細:www.linear-tech.co.jp/LT6110 LT6110 アプリケーション情報 3 RF RFA = RFA RFB VREG 2 5 LT3080 10µA VDROP IIOUT IIOUT 2 ISET 100µA VDROP RFB = LT6110 VREG – VFB –RFA IQ IMON IOUT IQ 3 VREG = ISET • (RSET1 + RSET2) 4 LT6110 6 Ω 300m 3 2A LT3980 10µA VSENSE = ILOAD • RSENSE I+IN = IQ 5V 2A IOUT 20mΩ VIN 100µA VIN 2A LT6110 640mV VSENSE RIN IIMON = 3 • I+IN BD RUN/SS BOOST 100k 97.6k 15k LT3980 PGOOD SW RT DA 0.47µF 10µH DFLS240L 1.5nF VC 100pF GND FB VREG 47µF 6.49k NC 10pF VFB = 0.79V 422k 80.6k +IN LT6110 IOUT V+ 20mΩ IMON RS GND –IN 402Ω 0.1µF RWIRE 0.3Ω 100µF 5V 2A 6110 F04 4. LT6110 LT3980 6110fa 詳細:www.linear-tech.co.jp/LT6110 15 LT6110 アプリケーション情報 RWIRE 0.5Ω RIN 200Ω LT3080 IN VIN +IN V+ ISET RS –IN LOAD 20mΩ + – VLOAD 3V 1A VREG LT6110 IOUT + – SET RSET1 301k 6110 F05 IMON = 3 IIN+ 5. ILOADMAX V– IMON IMON RSET2 1.69k LDO VDROP 6 LT6110 5V 2 IMON and VREG –RSET2 ISET 3V 500mV 7A I+IN 1A • 20mΩ = 200Ω 100µA LT1083 1A 最も近い1% 許容差の標準の抵抗値を使用して、 RSET1 =301kおよび RSET2 =1.69kになります。 RIN = V– IMON V RSET2 = DROP IIMON RSET1 = IMON 100µA OUTピンとADJピン間のVREF = 1.25V、IADJ = 75µA(標準) V ISET = REF IADJ R1 VLOAD (ILOAD = 0) = (ISET + IADJ) • (R2 + RG) + VREF VSENSE = ILOAD • RSENSE I+IN = VSENSE RIN IIMON = 3 • I+IN 6 5A 250mΩ 12V 25mΩ 3 VDROP = ILOAD(MAX) • (RSENSE + RWIRE) = 5A • 275mΩ = 1.375V 6110fa 16 詳細:www.linear-tech.co.jp/LT6110 LT6110 アプリケーション情報 RWIRE 0.25Ω RSENSE 0.025Ω VLOAD 12V 5A RIN +IN V+ RS –IN R1= 20mΩ VIN 10µF LT1083 IN ADJ VREG OUT R1 499Ω IADJ IOUT 10µF RG 1k R2 = RG = 1.62k ISET R2 3.16k + – LT6110 1.25V ISET IMON R1• ( VLOAD – VREF ) –RG IADJ •R1+ VREF ILOAD • (RSENSE +R WIRE ) 3 •I+IN VIMON(MAX) = RG • (ISET +IADJ + 3 •I+IN ) V– 6110 F06 IIMON IIMON = 3 I+IN 6. 3.16k 12V ILOADMAX VDROP ISET >> IADJ とし、ISET = 33.3 • IADJ ならば、ISET = 2.5mA R1= VREF 1.25V = = 499Ω ISET 2.5mA LT6110 RIN = 12V (R2+RG ) = VLOAD – VREF 10.75V = = 4.175k ISET +IADJ 2.575mA RG = 274Ω 30µA 3mA IOUT 10mA 1.62k VDROP IIMON 1.375V VSENSE VSENSE = IIMON I+IN 3 IIMON 1.375mA = = 460µA so 3 3 125mV = 271Ω RIN = 460µA RG IMON IMON RIN VSENSE = 5A • 25mΩ = 125mV、 RG LT6110 1% RG IMON RG R2 = 4.175k – 1k = 3.175k 1k 12V LT1083 ILOAD 10mA IMON 1.375mA VIMON(MAX) = (ISET + IADJ + IIMON) • RG = (2.5mA + 75µA + 1.375mA) • 1k = 3.95V 6110fa 詳細:www.linear-tech.co.jp/LT6110 17 LT6110 アプリケーション情報 2A LT6110 LT6110 760mV VDROP 5V 15% LT6110 LT6110 20mΩ RF 10k 0.8V 7 全負荷時のVSENSE は、20mΩ • 2A、すなわち40mV 5V 6 2 28AWG7/36 V 2A 2A RWIRE VWIRE + VSENSE、760mV + 40mV、すなわち800mV 28 4 6 6ft • 63.3mΩ/ft 28AWG7/36 380mΩ COMP RF DC 800mV/10k IIOUT VCOMP/RF 80µA IOUT 30µA 300µA + VDROP – VIN IN OUT REGULATOR VREG RF 10k ADJ + VSENSE – + RWIRE 6 FT, AWG 28 19/40 STRANDED WIRE ≥0.1µF VCOMP – I+IN GND RIN LT6110 +IN ±VOS* + – V+ RS RSENSE 0.020Ω –IN VLOAD LOAD 1k NC I+IN VIOUT + VWIRE – ILOAD + – IOUT BIAS IIOUT ±IOUT ERROR IMON IIMON ±IMON ERROR *± VOS = VOS + V– 6110 F07 VIMON ∆VOS ∆VOS ∆VOS + + + T V • ∆T ∆I+IN ∆VIOUT ∆VIMON C OS 7. 6110fa 18 詳細:www.linear-tech.co.jp/LT6110 LT6110 アプリケーション情報 RIN IIOUT 40mV/80µA 1% RIN VSENSE/ • ∆VOS/∆VIOUT 500Ω 499Ω IOUT mV/V VIOUT 1.2V DC 15% 0.01% • ∆VOS/∆VIMON LT6110 IMON mV/V • IOUT I+IN • IMON IMON 3 • I+IN 7 LT6110 • 1 • RSENSE 7 25C • RIN • RF µV • VOS • ∆VOS/∆I+IN LT6110 10 LT6110 0 mV/mA Ω 2A RIN 76mV 38mΩ 6 18AWG I+IN LT6110 2 100µA 6110fa 詳細:www.linear-tech.co.jp/LT6110 19 LT6110 アプリケーション情報 1.25C FIGURE 7 DESIGN EXAMPLE.TOTAL VDROP TO COMPENSATE = 744mV, I+IN = 74.6µA TERM DESIGN VALUE/SPEC UNITS FOR MAXIMUM VCOMP COMMENT/CALCULATION TYPICAL ERROR Internal Sense Resistor FOR MINIMUM VCOMP VALUE TYPICAL ERROR VALUE RSENSE 20 mΩ 7.50% 21.5 –7.50% 18.5 RIN 499 Ω –0.5% 496.5 0.5% 501.5 VOS 0 µV –100 –100 100 100 ∆VOS/∆I+IN 0 –0.15 –0.15 0.15 0.15 ∆VOS/∆VIOUT 0 mV/V Relative to VIOUT = 1.2V –0.005 –0.005 0.005 0.005 ∆VOS/∆VIMON 0 mV/V Relative to VIMON = 0V –0.3 –0.3 0.3 0.3 mV/mA Relative to I+IN = 100µA VOS + ∆VOS /∆I+IN (100µA – 80µA) + ∆VOS /∆VIOUT (1.2V – 0.8V) + ∆VOS /∆VIMON •0V Total VOS µV –105 105 IIOUT Error 0 % % IOUT Current Error Relative to I+IN 0.5 0.5 –0.5 –0.5 IIMON Error 0 % % IMON Current Error Relative to 3 • I+IN 1.5 1.5 –1.5 –1.5 40 mV ILOAD(MAX) • RSENSE Summary of Terms VSENSE 43 37 I+IN 80.2 µA (VSENSE – Total VOS)/RIN 86.8 73.6 IIOUT 80.2 µA I+IN • (1 + IIOUT Error) 87.2 73.2 IIMON 240.6 µA 3 • I+IN • (1 + IIMON Error) 264.4 219.6 RF 10 kΩ Fixed Resistor Value in Power Source VCOMP 802 mV IIOUT • RF 0 % 2 mV 0.03 % VCOMP Error 0.5% 10.05 –0.5% 9.95 876 728 9.2 –9.2 76 –72 1.52 –1.44 With Compensation VLOAD_ERROR Load Regulation LT6110 180kHz VCOMP – VDROP –3dB RF 8 LT6110 LT6110 10 100µF 9 6110fa 20 詳細:www.linear-tech.co.jp/LT6110 LT6110 アプリケーション情報 0dB R+IN –3dB R–IN 1k C1 0 –60 –90 1 IIOUT = 100µA 10 100 FREQUENCY (kHz) PHASE (DEG) –30 +IN V+ RS –IN 20mΩ –120 1000 LT6110 IOUT 6110 F08 + – 8.LT6110 IMON VREG 500mV/DIV V– 6110 F11 11.LT6110 VLOAD 500mV/DIV 2A LT6110 3A 1A 6110 F09 100µs/DIV 9. RSENSE VLOAD RSENSE DC VREG 500mV/DIV DCR 12 VLOAD 500mV/DIV LT6110 RS 2A 0A CLOAD = 100µF 6110 F10 10ms/DIV EXTERNAL RSENSE TO VREG 10. TO LOAD RIN LT6110 11 +IN V+ RC RC LT6110 RC 2 LT6110 9 LT6110 LT6110 IOUT LT6110 + – RF IMON LT6110 RS –IN 20mΩ V– 6110 F12 RC 12. RSENSE PCB 6110fa 詳細:www.linear-tech.co.jp/LT6110 21 LT6110 アプリケーション情報 IIOUT IOUT RSENSE 100µA VSENSE VSENSE 50mV VOS LT6110 VLOAD 1% 1% 13 5% RSENSE IIOUT 100 IOUT CURRENT ERROR (%) RSENSE 0.4V ≤ VIOUT ≤ V+ – 1.5V VIMON = V– = 0V VOS(MAX) 100ppm/C RSENSE 14 5V 3.5A 10 TCR RSENSE LT6110 2 1 0.1 IIOUT = 300µA IIOUT = 100µA IIOUT = 30µA 0 10 20 30 40 50 60 70 80 90 100 VSENSE (mV) 6110 F13 13.VSENSE VIN 8V TO 36V 22µF 4.7µF BD VIN BOOST RUN/SS 0.047µF 6.8µH SW VC 47µF 15k 9.53k LT3972 NC MBRA340 1nF 100pF 47pF FB 63.4k SYNC 0.79V 0.1µF LT6110 100k GND 866Ω V+ IOUT 523k RT +IN IMON RS GND –IN EXTERNAL RSENSE RWIRE 25mΩ 0.25Ω ±5% 10 FT 24AWG I = 600kHz VLOAD LOAD 5V 3.5A 6110 F14 14. 2. RSENSE LT6110 LT3972 RSENSE PART NUMBER THICK FILM VALUE RANGE TOLERANCE TCR POWER SIZE IRC LRC-LRF-2512 2mΩ to 1Ω 1% to 5% 100ppm 2W 2512 Stackpole Electronics CSR2512 10mΩ to 1Ω 1% to 5% 200ppm 2W 2512 Vishay RCWE2512 33mΩ to 51Ω 1% to 5% 200ppm 2W 2512 Panasonic ERJM1W 1mΩ to 20mΩ 1% to 5% 100ppm 2W 2512 10mΩ to 100mΩ 10mΩ to 100mΩ 1% to 2% 1% to 2% 100ppm(20mΩ to 51mΩ) 100ppm(20mΩ to 51mΩ) 1W 2W 1206 2512 Susumu PRL1632 Susumu PRL3264 6110fa 22 詳細:www.linear-tech.co.jp/LT6110 LT6110 アプリケーション情報 RF 24 DC 22 DCR 20 +3900ppm/C RSENSE VSENSE 18 PCB TRACE CURRENT (A) RCOIL LT6110 2oz COPPER 16 14 12 10 1oz COPPER 8 6 4 3 3. 2 RSENSE RSENSE COILCRAFT PART NUMBER 0 6110 F15 INDUCTANCE nH * DCR NOMINALmΩ 6% TYPICAL 27 8.5 4.4 221 9.8 5 1010 US-141 146 3.1 14 *インダクタンスは、電流検出に関係しません。 PCB 10A 2 RSENSE 60mV VSENSE IOUT RPCB 10A 2 150mil 2 RPCB 1 1 0.25mΩ PCB W T PCB 15 ρL/ T • W 15% T 15 2.8mil LT6110 VSENSE 60mV = = 6mΩ ILOAD(MAX) 10A RPCB W T 10C ILOADMAX PCB RPCB = PCB 2 15.PCB IRMS A 2222SQ-221 L/W 50 100 150 200 250 300 350 400 450 500 PCB TRACE WIDTH (MILS) Coilcraft 0908SQ-27N ρ PCB L PCB 0 0.5mΩ 2 1 150mil 6mΩ PCB 0.25mΩ 24 24 150mil 6mΩ/0.25mΩ/ 3.6 RPCB 1 PCB ANSI IPC2221 T 1.4mil 10˚C 16 6mΩ PCB VSENSE 3/4 RPCB 6 3.5 2 0.15 RPCB 6 21 LT6110 16 2 3/4 0.15 2 6110fa 詳細:www.linear-tech.co.jp/LT6110 23 LT6110 アプリケーション情報 5.4mΩ ±15% AT 25°C PCB RESISTOR 21 2oz COPPER SQUARES TO REGULATOR ONE SQUARE 0.15 INCH × 0.15 INCH TO LOAD A 3/4 CORNER SQUARES 0.15 INCH × 0.15 INCH B A 3.5-SQUARE COLUMN RIN — 3/4 SQUARE 21 SQUARES (6 COLUMNS) — ONE SQUARE –IN — 3/4 SQUARE 6110 F16 V– IMON RS V+ IOUT NC +IN — ONE SQUARE A 16.LT6110 21 5.25mΩ 21 • PCB 25C 1 0.25mΩ 0.015 B IIOUT VSENSE/RIN VOS LT6110 0.15 5 0.125mΩ[0.015 inch/0.15 inch] • 0.25mΩ • 5 RIN RSENSE IOUT –50ppm/C VOS 1µV/C RIN 25C RF 100ppm/C RSENSE LT6110 LT6110 LT6110 RWIRE +3900ppm/C LT6110 VREGNOM IIOUT • RF VDROP {IIOUT • RF – VDROP} 25C VLOAD 5V RF – VDROP} 5mV VLOAD 0.1% VDROP 0 75C +3400ppm/C {IIOUT • 100 5mV/5V • IOUT VOS RIN RWIRE IOUT RIN RF 17% RWIRE RF 0.25% VOS 0.5% 19.5% RSENSE 50C 50µV RSENSE VLOAD 5V ILOAD 2A IIOUT 71.2µA RF 562Ω RWIRE 0.336Ω 3 10k RIN VLOAD 6110fa 24 詳細:www.linear-tech.co.jp/LT6110 LT6110 アプリケーション情報 1 LT6110 75C RSENSE VLOAD RSENSE –0.025% VLOAD VLOAD AWG 2 LT6110 75C 2.3% 2.3% –0.36% 3900ppm/C 25C VLOAD RSENSE RSENSE 100ppm/C 0.05% IOUT VLOAD RIN VLOAD 3 LT6110 –2.6% 25C 75C VLOAD 3 80C RWIRE α 1 4 20C RLOW 0.0039/C TLOW 200C 0C 100C RHIGH AWG 4.20C AWG 18 STRANDS/GAUGE 16/30 Current AMPS RWIRE mΩ/ft AWG 20 STRANDS/GAUGE 7/28 RWIRE mΩ/ft AWG 22 STRANDS/GAUGE 7/30 RWIRE mΩ/ft AWG 24 STRANDS/GAUGE 19/36 RWIRE mΩ/ft AWG 26 STRANDS/GAUGE 19/38 RWIRE mΩ/ft AWG 28 STRANDS/GAUGE 7/36 RWIRE mΩ/ft AWG 30 STRANDS/GAUGE 7/38 RWIRE mΩ/ft 1 6.53 9.61 15.42 22.47 37.97 62.31 102.36 2 6.54 9.63 15.51 22.66 38.41 63.32 109.14 65.23 3 6.56 9.68 15.66 22.99 39.08 4 6.59 9.73 15.84 23.38 40.21 23.78 5 6.62 9.82 15.99 6 6.65 9.90 16.32 7 6.71 10.02 8 6.79 10.15 9 6.83 10 6.91 6110fa 詳細:www.linear-tech.co.jp/LT6110 25 LT6110 アプリケーション情報 THIGH 10 RHIGH = RLOW • (1 + α • (THIGH – TLOW)) 18AWG 4 18AWG 24AWG 6.5mΩ/ft 24AWG 22.43mΩ/ ft 18AWG RLOW RHIGH TRISE THIGH – TLOW 24AWG TRISE (°C) = 256.4 • (RHIGH/RLOW – 1) 4 20C 18AWG 28AWG ft RLOW 3A (31.39 • 10–6) • [(100000)2/(6.5 • 10–3 • 100000)] = 483 ポン ド (31.39 • 10–6) • [(100000)2/ (22.43 • 10–3 • 100000)] = 141 ポンド 30AWG 18AWG 3A 4 28AWG 3A 65.23mΩ/ft RHIGH TRISE 256.4 •65.23/62.31 – 1 3.4×24AWG LT6110 1A 62.31mΩ/ 12C National Bureau of Standards Handbook 100 LT6110 LT6110 I+IN I+IN 100µA 1mA LT6110 3 VIOUT • IIOUT 0.26% VREG •I +IN ISUPPLY ILOAD2 • RSENSE RSENSE IACS メートル法:153.28 • 10–6(Ω-kg)/m2 英単位系:31.39 • 10–6(Ω-lb)/ft2 / / VREG VIOUT 50V I+IN 1mA 36V IIOUT 1mA ISUPPLY 2.7mAI ISUPPLY I+IN SUPPLY I+IN ILOAD RSENSE 20mΩ 2A LT6110 kg 153.28 • 10–6 31.39 • 10–6 m2/ Ω ft / Ω 2 電力 = 36 • 0.001 + 50 • (0.001 + 0.0027) + 22 • 0.02 電力 = 0.301ワット 6110fa 26 詳細:www.linear-tech.co.jp/LT6110 LT6110 アプリケーション情報 ILOAD VREG VIN I+IN SWITCHING REGULATOR SWITCHING REGULATOR RIN IOUT FB ISUPPLY +IN V+ RS RFA VLOAD VDROP IIOUT +IN V+ RFB RS LOAD –IN 20mΩ RIOUT + – RWIRE RIN FB –IN 20mΩ VIOUT IOUT ILOAD VREG VIN + – RG IOUT IMON V– LT6110 V– IMON LT6110 6110 F18 6110 F17 17.LT6110 T 18. TJMAX – θJA • AMAX TSOT-23 195C/W TJMAX DFN TJMAX 150C BOOST 2. RIOUT 150 C θJA θJA RIOUT = 80.6C/W RFA VLOAD – R • VFB •RFA G VREGMAX – VLOAD 5V TSOT-23 195C/W DFN 80.6C/W VREGMAX TAMAX 150 C – 0.301W • TAMAX 150 C – 0.301W • 91C 126C 6V VLOAD RFA VFB 5V ILOADMAX 6.49k RFB 0.79V 4 2A IIOUT 422k RG 100µA 80.6k RIN 402Ω RIOUT BOOST VREGMAX 6490 • 0.79 • 6490 5 – 80600 RIOUT = 6–5 RIOUT RIOUT BOOST IIOUT VREGMAX 5.649V ≤ VREGMAX ≤ 6V VIOUT RIOUT IOUT 36V IOUT IOUT IOUT IMON IOUT 1mA 32k VIOUT 36V VIOUT 0.1µF VIOUT RIOUT RFA • IIOUT VZENERMIN IIOUT 1. VREGMAX V– IOUT 36V VZENER IOUT VLOAD VIOUT IOUT VLOAD 2mA ≤1mA VZENERMIN 5mA LT6110 VZENERMIN RFA • IIOUT 6110fa 詳細:www.linear-tech.co.jp/LT6110 27 LT6110 アプリケーション情報 ILOAD VREG VIN SWITCHING REGULATOR RFA RWIRE VLOAD VDROP RIN FB +IN V+ RFB RS LOAD SWITCHING REGULATOR VZENER VIOUT RFA +IN V+ RG – 19.IOUTV OUT 2V VZENERMIN LT6110 V IMON LOAD RS –IN 20mΩ IOUT RZ 10M VLOAD RIN2 RFB + – RWIRE VDROP RIN1 IOUT FB –IN 20mΩ RG ILOAD VREG VIN + – VIOUT IOUT 6110 F19 IMON ≤ 36V V– LT6110 VREG 2V VREGMAX VIOUT +IIOUT •RFA + VZENERMIN ≥ VREGMAX – RFA • VFB RG VREGMAX VLOAD V 20V IOUT VLOAD ILOADMAX R • 48V and ILOADMAX SENSE 2A RWIRE ILOADCOMP WIRE DROP COMPENSATION THRESHOLD RWIRE 48 20.02 1 ILOAD 6110 F20 20. 1Ω RSENSE 20mΩ RFA 20.5k RFB 453k RG RIN 402Ω VFB 1.223V IIOUT 100µA VREGMAX ILOADMAX 12.4k 50.04V ILOADCOMP ILOADCOMP ILOAD ILOADCOMP ILOADMAX 0 VZENERMIN 1. 20 + 100 •10 –6 • VZENERMIN ≥ 50.04 – 20.5 •103 + 3 20.5 •10 •1.223 12.4 •103 ( VZENERMIN ( ) ) 2. RIN1 RIN2 •R I RIN1 = LOADMAX SENSE – IIOUT VLOAD +ILOADMAX •R WIRE IIOUT VLOAD –1 ILOADCOMP •RSENSE VLOAD RIN2 = – 1 •RIN1 ILOADCOMP •RSENSE 26V 28V 1A +IN RIN2 VLOAD 5V ILOADMAX 3.5A RWIRE 25mΩ IIOUT 100µA 0.25Ω RSENSE 6110fa 28 詳細:www.linear-tech.co.jp/LT6110 LT6110 アプリケーション情報 VIN VREG µModule REGULATOR RINT RSENSE RF IOUT VFB ILOAD 1/2R WIRE 24 + LOAD VLOAD RIN +IN V+ RS – –IN 1/2RWIRE RG + – V– 21.µModule 1. ILOADCOMP LT6110 6110 F21 VLOAD 4.75V 100µA RIN 100µA 1% RIN RIN 10 • 0.006 /0.0001 604Ω RIN 604Ω RSENSE/RIN ] IIOUT 99.34µA [IIOUT 600Ω ILOAD • 10 • ( 0.006 + 0.15) 99.34 •10 –6 RF = 10 105 – • ( 0.006 + 0.15) 99.34 •10 –6 576Ω ILOAD RF 18.7k 1% (18.7 •10 ) •10 • 0.6 (18.7 •10 +10 ) • (3 – 0.6) 3 3.5A RG = 5V RG µModule PCB IIOUT RF RG 1A RIN1 6mΩ 10A 0.15Ω RWIRE 105 • µModule 3 3.92k 5 5 1% ® RINT LT6110 RF µModule R ILOAD LT6110 2. RIN1 RIN2 RIN2 115k ILOAD 1A VLOAD RSENSE IIOUT IOUT IMON 18AWG LT6110 µModule INT LT6110 LT6110 1. IIOUT 2.RF RG 100µA 22 LT6110 RIN VC ILOAD • (RSENSE +R WIRE ) IIOUT RF = I RINT – LOAD • (RSENSE +R WIRE ) IIOUT RINT • V V FB C/VFB DC g R •R VFB RG = F INT • (RF +RINT ) ( VREG – VFB ) RIN = VREG VREG/VC VFB/VREG • RLOAD VREF/VREG m ge • R e ILOAD •RSENSE IIOUT 24 LTM4600 18AWG 3V 10A RINT 100kV LTM4600 µModule FB R1 C1 0.6V 6110fa 詳細:www.linear-tech.co.jp/LT6110 29 LT6110 アプリケーション情報 BUCK REGULATOR MODEL VIN – + MODULATOR gm IS THE MODULATOR TRANSCONDUCTANCE SLOPE COMP R OSCILLATOR Q S L LT6110 MODEL VREG CO RFA CCOMP RESR R1 C2 Re C1 + – VREF RFB VFB 22. VLOAD RLOAD RG ERROR AMPLIFIER ge IS THE ERROR AMPLIFIER TRANSCONDUCTANCE RWIRE RSENSE + – VC RIN IIOUT LT6110 6110 F22 LT6110 160kHz CCOMP LT6110 AN76 LT6110 CCOMP 160kHz 23 LT6110 LT3980 RFA CCOMP CCOMP LT6110 1nF RFA CCOMP 10% CCOMP VIN VIN CCOMP 1 BD RUN/SS BOOST 100k 97.6k 15k LT3980 PGOOD SW 0.47µF 10µH VREG 47µF DA RT 100pF GND CCOMP 1nF RFB 412k 1.5nF VC RFA 6.49k FB RG 80.6k NC +IN LT6110 IOUT V+ 20mΩ IMON RS GND –IN RIN 402Ω 0.1µF RWIRE 0.3Ω VLOAD 5Ω 10µF 1.6A 1A 8Ω 2k 180pF 6110 F23 23.LT6110 LT3980 6110fa 30 詳細:www.linear-tech.co.jp/LT6110 LT6110 アプリケーション情報 RFA RFB VREG VFB 24b LT6110 LT3980 CCOMP LT6110 24a 24c LT6110 24c 24a LT3980 VREG 200mV/DIV 1A VLOAD 200mV/DIV 1.6A LT6110 LT3980 VREG 200mV/DIV VLOAD 200mV/DIV LT6110 CCOMP 1.6A ILOAD ILOAD 1A 6110 F24a 200µs/DIV 200µs/DIV 24a.LT6110 24b. 6110 F24b LT6110 VREG 200mV/DIV VLOAD 200mV/DIV 1.6A 1A ILOAD 200µs/DIV 24c. CCOMP 6110 F24c LT6110 6110fa 詳細:www.linear-tech.co.jp/LT6110 31 LT6110 標準的応用例 RSENSE VIN 6.5V TO 25V 10µF LT6110 VIN EN BST 0.68µF UVLO 4.7µH SS 1000pF VC SW LT3690 0.47µF FB VCCINT SYNC 10.2k BIAS 47pF 100µF PG 22k 680pF LT36903.3V 2 301k 0.8V 3 100k GND RT 1 4 32.4k 600kHz NC +IN V+ IOUT LT6110 IMON RS V– –IN 8 RIN 340Ω 7 0.1µF 6 5 RSENSE* 8.5mΩ RWIRE 0.25Ω *THE CURRENT SENSE RESISTOR IS THE DCR OF A LOW COST INDUCTOR. COILCRAFT 0908SQ-27N (27nH) VLOAD LOAD 3.3V 4A 6110 TA02 WIRE DROP COMPENSATION: VLOAD = 3.3V, ILOADMAX = 4A, USING 10ft, 24AWG WIRE. MEASURED VLOAD REGULATION FOR 0 ≤ ILOAD ≤ 4A AT 25°C: WITHOUT COMPENSATION: ∆VLOAD = 1000mV (250mV/A) WITH COMPENSATION: ∆VLOAD = 16mV (4mV/A) RSENSE VIN 8.5V TO 36V 10µF EN BST 0.68µF 10µH SS VC SW LT3690 0.47µF FB VCCINT SYNC 20.5k BIAS 47µF PG 22k 680pF LT36905V VIN UVLO 1000pF LT6110 511k 0.8V RT 1 2 3 100k GND 47pF 32.4k 600kHz 4 NC +IN V+ IOUT LT6110 IMON RS V– –IN 8 RIN 340Ω 7 6 5 0.1µF RSENSE* 8.5mΩ RWIRE 0.5Ω *THE CURRENT SENSE RESISTOR IS THE DCR OF A LOW COST INDUCTOR. COILCRAFT 0908SQ-27N (27nH) VLOAD LOAD 5V 4A 6110 TA03 WIRE DROP COMPENSATION: VLOAD = 5V, ILOADMAX = 4A, USING 20ft, 24AWG WIRE. MEASURED VLOAD REGULATION FOR 0 ≤ ILOAD ≤ 4A AT 25°C: WITHOUT COMPENSATION: ∆VLOAD = 2000mV (500mV/A) WITH COMPENSATION: ∆VLOAD = 24mV (6mV/A) 6110fa 32 詳細:www.linear-tech.co.jp/LT6110 LT6110 標準的応用例 PCB RSENSE VIN 6V TO 24V + 150µF 22µF 22µF VIN LT6110 µ LTM46003V VREG VOUT 22µF 100µF 100µF LTM4600HV 1M 100k ±0.5% 0.6V VOSET RUN/SS 0.1µF FCB SGND PGND 1000pF RF 18.7k RG 3.92k 1 2 3 4 NC +IN IOUT V+ LT6110 IMON RS V– –IN 8 RIN 523Ω 7 6 0.1µF 5 PCB RSENSE RWIRE 6mΩ 0.075Ω ±20% + RWIRE 0.075Ω WIRE DROP COMPENSATION: VLOAD = 3.0V, ILOADMAX = 10A, USING 20ft, 18AWG WIRE WITH GROUND RETURN. MEASURED VLOAD REGULATION FOR 0 ≤ ILOAD ≤ 10A AT 25°C: WITHOUT COMPENSATION: ∆VLOAD = 1500mV (150mV/A) WITH COMPENSATION: ∆VLOAD = 50mV (5mV/A) 100µF + 100µF + VLOAD LOAD 3V 10A – 6110 TA04 V+ LT6110 VIN 6V TO 24V + 150µF 22µF 22µF VIN 2V VREG VOUT 22µF 100µF 100µF LTM4600HV 1M RUN/SS 0.1µF FCB SGND PGND 1000pF 100k ±0.5% 0.6V VOSET 11k 10k 1 2 3 4 22µF VIN RANGE OF –5V INVERTER, 1V TO 6V MURATA LQH3C220K 22µH + 15µF 1µF 5 1 VIN SW LT1617-1 4 SHDN IOUT IMON RS V– –IN RIN 1k 7 6 5 0.1µF PCB RSENSE RWIRE 10mΩ 90mΩ ±5% 12 ft. 18AWG 100Ω + V+ LT6110 8 + 100µF + 100µF + VLOAD LOAD 1.2V 10A – –5V 15µF 1µF 0.1µF 30.1k NFB GND +IN 0.1µF MURATA LQH3C220K 22µH MBR0520 NC 3 10k 6110 TA05 WIRE DROP COMPENSATION: VLOAD = 1.2V, ILOADMAX = 10A, USING 12ft, 18AWG WIRE. (ONE WIRE TO A LOAD SHARING THE REGULATOR’S GROUND). MEASURED VLOAD REGULATION FOR 0 ≤ ILOAD ≤ 10A AT 25°C: WITHOUT COMPENSATION: ∆VLOAD = 1000mV (100mV/A) WITH COMPENSATION: ∆VLOAD = 80mV (8mV/A) 6110fa 詳細:www.linear-tech.co.jp/LT6110 33 LT6110 標準的応用例 RSENSE VIN 5V TO 36V INTVCC 100k 1 2 1nF 0.01µF 0.01µF 3 4 14.7k 5 6 7 121k 8 400kHz VIN VREG 9 10 11 12 13 PGOOD VFB SW1 TG1 SS BOOST1 SENSE+ PGND – BG1 SENSE ITH SGND LTC3789 VIN MODE/PLLIN INTVCC FREQ EXTVCC RUN VINSNS VOUTSNS BG2 BOOST2 27 2.2µF 14 I – OSENSE TG2 SW2 TRIM CA 0.22µF + LTC378912V 270µF 390pF 5.6Ω 10Ω 26 QA Si7848BDP 25 24 DA DFLS160 23 1µF 22 L 4.7µH QB Si7848BDP 10µF 21 D1 B240A 10mΩ 20 DB DFLS160 19 QC SiR496DP 18 ILIM IOSENSE+ LT6110 17 VREG BZT52C6V2S 16 CB 0.22µF VREG 100pF QD SiR496DP D2 B240A 15 5.62k 133k 1 2 3 100Ω 100Ω 1k 1k 10k 10mΩ 2.2µF + 4 NC +IN V+ IOUT LT6110 IMON RS GND –IN 8 RIN 619Ω 7 6 5 0.1µF EXTERNAL RSENSE RWIRE 25mΩ 0.1Ω ±5% + 330µF 0.8V WIRE DROP COMPENSATION: VLOAD = 12V, ILOADMAX = 5A, USING 20ft, 20AWG WIRE WITH GROUND RETURN. MEASURED VLOAD REGULATION FOR 0 ≤ ILOAD ≤ 5A AT 25°C: WITHOUT COMPENSATION: ∆VLOAD = 1000mV (250mV/A) WITH COMPENSATION: ∆VLOAD = 25mV (5mV/A) RWIRE 0.1Ω LOAD – 12V 5A 6110 TA06 6110fa 34 詳細:www.linear-tech.co.jp/LT6110 LT6110 パッケージ http://www.linear-tech.co.jp/designtools/packaging/ TS8 Package 8-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1637 Rev A) 0.40 MAX 2.90 BSC (NOTE 4) 0.65 REF 1.22 REF 1.4 MIN 3.85 MAX 2.62 REF 2.80 BSC 1.50 – 1.75 (NOTE 4) PIN ONE ID RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.22 – 0.36 8 PLCS (NOTE 3) 0.65 BSC 0.80 – 0.90 0.20 BSC 0.01 – 0.10 1.00 MAX DATUM ‘A’ 0.30 – 0.50 REF 注記: 1. 寸法はミリメートル 2. 図は実寸とは異なる 3. 寸法はメッキを含む 4. 寸法はモールドのバリおよび金属のバリを含まない 5. モールドのバリは各サイドで 0.254mm を超えないこと 6. JEDEC パッケージリファレンスは MO-193 0.09 – 0.20 (NOTE 3) 1.95 BSC TS8 TSOT-23 0710 REV A 6110fa 詳細:www.linear-tech.co.jp/LT6110 35 LT6110 パッケージ http://www.linear-tech.co.jp/designtools/packaging/ DC8 Package 8-Lead Plastic DFN (2mm × 2mm) (Reference LTC DWG # 05-08-1719 Rev A) 0.70 ±0.05 2.55 ±0.05 1.15 ±0.05 0.64 ±0.05 (2 SIDES) PACKAGE OUTLINE 0.25 ±0.05 0.45 BSC 1.37 ±0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED R = 0.05 TYP 2.00 ±0.10 (4 SIDES) PIN 1 BAR TOP MARK (SEE NOTE 6) R = 0.115 TYP 5 8 0.40 ±0.10 0.64 ±0.10 (2 SIDES) PIN 1 NOTCH R = 0.20 OR 0.25 × 45° CHAMFER (DC8) DFN 0409 REVA 4 0.200 REF 1 0.23 ±0.05 0.45 BSC 0.75 ±0.05 1.37 ±0.10 (2 SIDES) 0.00 – 0.05 BOTTOM VIEW—EXPOSED PAD 注記: 1. 図は JEDEC のパッケージ外形ではない 2. 図は実寸とは異なる 3. 全ての寸法はミリメートル 4. パッケージ底面の露出パッドの寸法にはモールドのバリを含まない。 モールドのバリは (もしあれば)各サイドで 0.15mm を超えないこと 5. 露出パッドは半田メッキとする 6. 網掛けの部分はパッケージの上面と底面のピン 1 の位置の参考に過ぎない 6110fa 36 詳細:www.linear-tech.co.jp/LT6110 LT6110 改訂履歴 REV A 11/13 Amplifier input Bias Currentの最大値を200nAから100nAに変更。 「最小入力電圧」のグラフを追加。 「出力を基準とした可変電圧レギュレータの補償」セクションを編集。 「誤差要因」セクションを編集。 タイトルを追加:µModuleレギュレータを使用したワイヤ電圧降下補償 「外付けPCB RSENSE を持つLT6116とµレギュレータLTM4600(3V)」の図を編集。 「外付けPCB RSENSE を持つLT6116とµレギュレータLTM4600(1.8V)」の図を「LT6110のV+ が 2V 未満時の ワイヤ電圧降下補償」の図に差し替え。 「内部 RSENSE を持つLT6116と降圧レギュレータLT3975(3.3V)」の図を編集。 3 7 16 18、19、20 29 33 33 38 6110fa リ ア ク ロジー ー ーション 訂 改 情報 特 関連 最 的 最 関 用 ー シー 関 37 LT6110 標準的応用例 LT6110 RSENSE VIN 7V TO 42V 100µF 10µF B00ST VIN EN LT39753.3V 0.47µF 4.7µH SW PDS360 LT3975 VREG OUT 100µF 10nF 1µF SS RT 78.7k f = 600kHz SYNC GND FB 16.5k 10pF 1.197V 1 2 1M 3 576k 4 NC +IN IOUT V+ LT6110 IMON RS V– –IN 8 RIN 499Ω 7 0.1µF RWIRE 0.32Ω 6 5 + VLOAD LOAD 3.3V RWIRE 2.5A – 0.32Ω WIRE DROP COMPENSATION: VLOAD = 3.3V, ILOADMAX = 2.5A, USING 6ft, 30AWG WIRE WITH GROUND RETURN. MEASURED VLOAD REGULATION FOR 0 ≤ ILOAD ≤ 2.5A AT 25°C: WITHOUT COMPENSATION: ∆VLOAD = 1600mV (640mV/A) WITH COMPENSATION: ∆VLOAD = 25mV (10mV/A) 6110 TA07 関連製品 LT1787 LTC4150 2.7V 60V 75µV 60µA 8V/V 4.1V 48V 10 12.5 20 25 40 50V/V / LT6100 LTC6101 100V 300µV SOT-23 LTC6102 100V 10µV MSOP8/DFN LTC6103 4V 60V 2 LTC6104 4V 60V MSOP8 LT6105 –0.3V LT6106 2.7V 36V LT6107 2.7V 36V –55C 1.4V 18V LT6700 400mV 44V 300µV MSOP8 1% 250µV SOT23 150C –55C 25C 150C 6.5µA LT4180 6110fa 38 LT 1113 REV A • PRINTED IN JAPAN 〒102-0094 東京都千代田区紀尾井町3-6紀尾井町パークビル8F TEL 03-5226-7291 ● FAX 03-5226-0268 ● www.linear-tech.co.jp/LT6110 LINEAR TECHNOLOGY CORPORATION 2013