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參數(shù)資料
| 型號(hào)： | LT1621IGN#TR |
| 廠商： | Linear Technology |
| 文件頁(yè)數(shù)： | 12/12頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP CURR SENSE RR DUAL 16SSOP |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 放大器類型： | 電流檢測(cè) |
| 電路數(shù)： | 2 |
| 輸出類型： | 滿擺幅 |
| 電流 - 輸入偏壓： | 20nA |
| 電壓 - 輸入偏移： | 6000µV |
| 電流 - 電源： | 2.3mA |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SSOP |
| 包裝： | 帶卷 (TR) |
9
LT1620/LT1621
APPLICATIONS INFORMATION
WU
U
Figure 5a. Typical Setpoint Voltage (VPROG) Changes Slightly
Depending Upon the Amount of Current Sinked by the IOUT Pin
IN+ – IN– (VID) INPUT (mV)
0
V
PROG
OFFSET
(mV)
20
10
0
–10
–20
–30
–40
60
100
LT1620/21 F05b
40
80
120
140
VCC = 5V
VCM = 16.8V
IOUT = 130A
Figure 5b. Typical Setpoint Voltage (VPROG) Changes Slightly
Depending Upon the Programmed Differential Input Voltage (VID)
IOUT SINK CURRENT (A)
0
V
PROG
OFFSET
(mV)
150
250
LT1620/21 F05a
50
100
200
40
30
20
10
0
–10
–20
–30
–40
VCC = 5V
VID = 80mV
VCM = 16.8V
Figure 5e. Typical Setpoint Voltages for VPROG and VPROG2
Change Slightly Depending Upon the Supply Voltage (VCC)
VCC (V)
4.50
PROGRAMMING
OFFSET
(mV)
0
5
5.50
LT1620/21 F05e
–5
–10
4.75
5.00
5.25
10
VPROG
VPROG2
VID = 80mV
VCM = 16.8mV
IOUT = 130A
IN+ – IN– (VID) INPUT (mV)
0
V
PROG2
OFFSET
(mV)
40
20
0
–20
–40
–60
–80
60
100
LT1620/21 F05c
20
40
80
120
140
VCC = 5V
VCM = 16.8V
IOUT = 130A
Figure 5c. Typical Comparator Threshold Voltage (VPROG2)
Changes Slightly Depending Upon the Programmed Differential
Input Voltage (VID)
Figure 5d. Sense Amplifier Input Offset Tolerence Degrades for
Input Common Mode Voltage (VCM) Below (VCC – 0.5V). This
Affects the SENSE, AVG and AVG2 Amplifier Outputs
IN+, IN– COMMON MODE VOLTAGE (VCM) (V)
0
±8
±10
±12
35
LT1620/21 F05d
±6
±4
12
436
±2
0
ADDITIONAL
INPUT
REFERRED
OFFSET
(mV)
±14
VCC = 5V
VID = 80mV
IOUT = 130A
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