参数资料
型号: LT1680CSW#TRPBF
厂商: Linear Technology
文件页数: 2/16页
文件大小: 0K
描述: IC REG CTRLR BST PWM CM 16-SOIC
标准包装: 1,000
PWM 型: 电流模式
输出数: 1
频率 - 最大: 200kHz
占空比: 90%
电源电压: 4 V ~ 60 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: 0°C ~ 70°C
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
包装: 带卷 (TR)
LT1680
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
Power Supply Voltage (12V IN ) .................. – 0.3V to 20V
Sense Amplifier Input Common Mode ...... – 0.3V to 60V
GATE Pin Voltage ....................... – 0.3V to 12V IN + 0.3V
RUN/SHDN Pin Voltage ......................... – 0.3V to 12V IN
All Other Pin Voltages ................................. – 0.3V to 7V
5V Reference Output Current ............................... 65mA
SL/ADJ
C T
I AVG
SS
V C
SGND
1
2
3
4
5
6
TOP VIEW
16 5V REF
15 SYNC
14 12V IN
13 GATE
12 PGND
11 RUN/SHDN
ORDER PART
NUMBER
LT1680CN
LT1680CSW
LT1680IN
LT1680ISW
Operating Ambient Temperature Range
LT1680C .................................................. 0 ° C to 70 ° C
LT1680I .............................................. – 40 ° C to 85 ° C
Storage Temperature Range ................ – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec)................. 300 ° C
V FB 7 10 SENSE –
V REF 8 9 SENSE +
N PACKAGE SW PACKAGE
16-LEAD PDIP 16-LEAD PLASTIC SO WIDE
T JMAX = 125 ° C, θ JA = 75 ° C/ W (N)
T JMAX = 125 ° C, θ JA = 90 ° C/ W (SW)
Consult factory for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T A = 25 ° C.
12V IN = 12V, V VC = 2V, V FB = V REF = 1.25V, C GATE = 3000pF, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply and Protection
I 12VIN
DC Active Supply Current (Note 2)
Gate Output On
q
15
22
mA
Gate Output Off
12
mA
DC Standby Supply Current
V RUN < 0.5V
q
150
250
μ A
V RUN/SHDN Shutdown Rising Threshold
V SSHYST
Shutdown Threshold Hysteresis
q
1.15
1.25
25
1.35
V
mV
I SS
V UVLO
Soft Start Charge Current
Undervoltage Lockout Threshold - Falling
Undervoltage Lockout Threshold - Rising
Undervoltage Lockout Hysteresis
q
q
q
q
5
8.20
200
8
9.00
9.35
350
14
9.75
9.95
μ A
V
V
mV
5V Reference
V REF5
5V Reference Voltage
5V Reference Line Regulation
Line, Load and Temperature
10V ≤ 12V IN ≤ 15V
q
q
4.75
5
3
5.25
5
V
mV/V
I REF5
5V Reference Load Range - DC
Pulse
q
q
10
20
mA
mA
I SC
5V Reference Load Regulation
5V Reference Short-Circuit Current
0 ≤ I REF5 ≤ 20mA
q
–1.25
45
–2
V/A
mA
Error Amplifier
V FB
Error Amplifier Reference Voltage
Measured at Feedback Pin
1.242
1.250
1.258
V
q
1.235
1.265
V
I FB
g m
A V
I VC
Feedback Input Current
Error Amplifier Transconductance
Error Amplifier Voltage Gain
Error Amplifier Source Current
Error Amplifier Sink Current
V FB = V REF
V FB – V REF = 500mV
q
q
q
q
q
0.1
1200
1500
200
280
0.5
2000
3000
275
400
1.0
3200
μ A
μ mho
V/V
μ A
μ A
V VC
Absolute V C Clamp Voltage
Measured at V C Pin
3.5
V
2
相关PDF资料
PDF描述
LT1680CSW#TR IC REG CTRLR BST PWM CM 16-SOIC
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