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参数资料
| 型号： | 5962-9326501V2X |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, CQCC20 |
| 封装： | LCC-20 |
| 文件页数： | 39/45页 |
| 文件大小： | 1128K |
| 代理商： | 5962-9326501V2X |
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PRODUCT FOLDER | PRODUCT INFO: FEATURES | DESCRIPTION | DATASHEETS | PRICING/AVAILABILITY | APPLICATION NOTES
UC1832, Precision Low Dropout Linear Controllers
DEVICE STATUS: ACTIVE
PARAMETER NAME
UC1832
Iq (typ) (mA)
3.3
Vin (max) (V)
40
Tolerance (%)
2
Shutdown
Yes
VO (min) (V)
2
Idrive (max) (mA)
100
Type of Short Circuit Limit Duty Cycle Duty Cycle Duty Cycle
FEATURES
Precision 1% Reference
q
Over-Current Sense Threshold Accurate to 5%
q
Programmable Duty-Ratio Over-Current Protection
q
4.5V to 36V Operation
q
100mA Output Drive, Source or Sink
q
Under-Voltage Lockout
q
Additional Features of the UC1832 series:
Adjustable Current Limit to Current Sense Ratio
r
Separate +VIN terminal
r
Programmable Driver Current Limit
r
Access to VREF and E/A(+)
r
Logic-Level Disable Input
r
q
DESCRIPTION
The UC1832 and UC1833 series of precision linear regulators include all the control functions required in the design of very
low dropout linear regulators. Additionally, they feature an innovative duty-ratio current limiting technique which provides
peak load capability while limiting the average power dissipation of the external pass transistor during fault conditions. When
the load current reaches an accurately programmed threshold, a gated-astable timer is enabled, which switches the
regulator’s pass device off and on at an externally programmable duty-ratio. During the on-time of the pass element, the
output current is limited to a value slightly higher than the trip threshold of the duty-ratio timer. The constant-current-limit
is programmable on the UCx832 to allow higher peak current during the on-time of the pass device. With duty-ratio control,
high initial load demands and short circuit protection may both be accommodated without extra heat sinking or foldback
current limiting. Additionally, if the timer pin is grounded, the duty-ratio timer is disabled, and the IC operates in
constant-voltage/constant-current regulating mode.
These IC’s include a 2 Volt (±1%) reference, error amplifier, UVLO, and a high current driver that has both source and sink
outputs, allowing the use of either NPN or PNP external pass transistors. Safe operation is assured by the inclusion of
under-voltage lockout (UVLO) and thermal shutdown.
The UC1833 family includes the basic functions of this design in a low-cost, 8-pin mini-dip package, while the UC1832 series
provides added versatility with the availability of 14 pins. Packaging options include plastic (N suffix), or ceramic (J suffix).
Specified operating temperature ranges are: commercial (0°C to 70°C), order UC3832/3 (N or J); industrial (–25°C to
85°C), order UC2832/3 (N or J); and military (–55°C to 125°C), order UC1832/3J. Surface mount packaging is also
available.
TECHNICAL DOCUMENTS
Product Folder:UC1832, Precision Low Dropout Linear Controllers
file:///J|/imaging/BITTING/mail_pdf/cpl_images/uc1832.html (1 of 2) [8/6/2001 9:47:05 AM]
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All Semiconductors
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相关代理商/技术参数 |
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| 5962-9326502M2A | 制造商:Texas Instruments 功能描述:LDO Cntrlr REG 2V 20-Pin LCCC 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 5962-9326701M2C | 功能描述:监控电路 5P Supervisory Circuit RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| 5962-9326701MPA | 功能描述:监控电路 MCU Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| 5962-9326702M2C | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| 5962-9326702MPA | 功能描述:监控电路 MCU Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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