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参数资料
| 型号： | LT1339ISW#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/20页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BST PWM CM 20-SOIC |
| 标准包装： | 1,000 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 150kHz |
| 占空比： | 90% |
| 电源电压： | 最高 60V |
| 降压： | 无 |
| 升压： | 是 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 包装： | 带卷 (TR) |
LT1339
A BSOLUTE
A XI U
R A TI G S
PACKAGE/ORDER I FOR ATIO
(Note 1)
Supply Voltages
Power Supply Voltage (12V IN )............... – 0.3V to 20V
Topside Supply Voltage (V BOOST )
V TS – 0.3V to V TS + 20V (V MAX = 75V)
Topside Reference Pin Voltage (TS) ...... – 0.3V to 60V
Input Voltages
Sense Amplifier Input Common Mode ... – 0.3V to 60V
RUN/SHDN Pin Voltage ...................... – 0.3V to 12V IN
All Other Inputs ....................................... – 0.3V to 7V
Maximum Currents
5V Reference Output Current............................ 65mA
Maximum Temperatures
SYNC 1
5V REF 2
CT 3
SL/ADJ 4
I AVG 5
SS 6
V C 7
SGND 8
V FB 9
V REF 10
N PACKAGE
TOP VIEW
20 V BOOST
19 TG
18 TS
17 12V IN
16 BG
15 PGND
14 PHASE
13 RUN/SHDN
12 SENSE –
11 SENSE +
SW PACKAGE
ORDER PART
NUMBER
LT1339CN
LT1339CSW
LT1339IN
LT1339ISW
Operating Ambient Temperature Range
LT1339C ............................................ 0 ° C to 70 ° C
LT1339I ......................................... – 40 ° C to 85 ° C
Storage Temperature Range ................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
20-LEAD PDIP 20-LEAD PLASTIC SO WIDE
T JMAX = 125 ° C, θ JA = 70 ° C/W (N)
T JMAX = 125 ° C, θ JA = 85 ° C/W (SW)
Consult factory for Military grade parts.
ELECTRICAL C HARA C TERISTICS
12V IN = V BOOST = 12V, V C = 2V, TS = 0V, V FB = V REF = 1.25V, C TG = C BG = 3000pF, T A = 25 ° C unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply and Protection
I 12VIN
I BOOST
DC Active Supply Current (Note 2)
DC Standby Supply Current
DC Active Supply Current (Note 2)
DC Standby Supply Current
V RUN/SHDN < 0.5V
V RUN/SHDN < 0.5V
q
q
14
150
2.2
0
20
250
mA
μ A
mA
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
4
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
5.00
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
sn1339 1339fas
2
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