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参数资料
| 型号： | LT3845MPFE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/26页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 16TSSOP |
| 标准包装： | 2,500 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 500kHz |
| 电源电压： | 4 V ~ 60 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -55°C ~ 125°C |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 包装： | 带卷 (TR) |
LT3845
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (V IN ) ........................................65V
Boosted Supply Voltage (BOOST) .............................80V
Switch Voltage (SW) (Note 8) ....................... 65V to –2V
Differential Boost Voltage
(BOOST to SW).....................................................24V
Bias Supply Voltage (V CC ) .........................................24V
SENSE + and SENSE – Voltages ..................................40V
Differential Sense Voltage
(SENSE + to SENSE – )................................... 1V to –1V
PIN CONFIGURATION
TOP VIEW
BURST_EN Voltage ...................................................24V
SYNC, V C , V FB , C SS , and SHDN Voltages ....................5V
SHDN Pin Currents ..................................................1mA
Operating Junction Temperature Range (Note 2)
LT3845E (Note 3) ............................... –40°C to 125°C
LT3845I .............................................. –40°C to 125°C
LT3845MP.......................................... –55°C to 125°C
Storage Temperature.............................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
TOP VIEW
V IN
SHDN
C SS
1
2
3
16 BOOST
15 TG
14 SW
V FB
V C
f SET
1
2
3
16 BURST_EN
15 C SS
14 SHDN
BURST_EN
V FB
V C
SYNC
4
5
6
7
17
13 V CC
12 BG
11 PGND
10 SENSE +
SGND
SENSE –
SENSE +
PGND
4
5
6
7
13 V IN
12 BOOST
11 TG
10 SW
f SET
8
9
SENSE –
BG
8
9
V CC
FE PACKAGE
16-LEAD PLASTIC TSSOP
T JMAX = 125°C, θ JA = 40°C/W, θ JC = 10°C/W
EXPOSED PAD (PIN 17) IS SGND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
N PACKAGE
16-LEAD PDIP
T JMAX = 125°C, θ JA = 70°C/W, θ JC = 34°C/W
LEAD FREE FINISH
LT3845EFE#PBF
LT3845IFE#PBF
LT3845MPFE#PBF
LT3845EN#PBF
TAPE AND REEL
LT3845EFE#TRPBF
LT3845IFE#TRPBF
LT3845MPFE#TRPBF
LT3845EN#TRPBF
PART MARKING*
3845FE
3845FE
3845FE
3845N
PACKAGE DESCRIPTION
16-Lead Plastic TSSOP
16-Lead Plastic TSSOP
16-Lead Plastic TSSOP
16-Lead PDIP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges. *The temperature grade is identi?ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based ?nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
3845fd
2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3846 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Current Mode PWM Controller |
| LT3846J | 制造商:Linear Technology 功能描述:Current Mode PWM Controller 200mA 16-Pin CDIP |
| LT3846N | 制造商:LINER 制造商全称:Linear Technology 功能描述:Current Mode PWM Controller |
| LT3847 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Current Mode PWM Controller |
| LT3847J | 制造商:Linear Technology 功能描述:Current Mode PWM Controller 200mA 16-Pin CDIP |
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