LT6110 - ケーブル/ワイヤ電圧降下補償器

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