参数资料
| 型号： | CS5165AGDW16 |
| 厂商： | ON Semiconductor |
| 文件页数： | 11/18页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR BUCK SYNC 5BIT 16-SOIC |
| 产品变化通告： | Product Obsolescence 11/Feb/2009 Product Obsolescence 30/Dec/2003 |
| 标准包装： | 47 |
| 应用： | 控制器，Intel Pentium? II |
| 输入电压： | 8 V ~ 14 V |
| 输出数： | 2 |
| 输出电压： | 1.34 V ~ 2.09 V，2.14 V ~ 3.54 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 管件 |
CS5165A
M 25.0 ms
Trace 1? GATE(H) (10 V/div.)
Trace 2? Inductor Switching Node (5.0 V/div.)
Trace 3? Load Current (5.0 A/div)
Trace 4? V OUT (100 mV/div.)
Figure 17. Output Voltage Transient Response to a 14
A Load Turn?Off, V OUT = +2.84 V (DAC = 10111)
Trace 4? 5.0 V Supply Voltage (2.0 V/div.)
Trace 3? Soft?Start Timing Capacitor (1.0 V/div.)
Trace 2? Inductor Switching Node (2.0 V/div.)
Figure 18. Demonstration Board Hiccup Mode Short
Circuit Protection. Gate Pulses are Delivered While
the Soft?Start Capacitor Charges, and Cease During
Discharge
PROTECTION AND MONITORING FEATURES
Short Circuit Protection
A lossless hiccup mode short circuit protection feature is
provided, requiring only the Soft?Start capacitor to implement.
If a short circuit condition occurs the V FB low comparator sets
the FAULT latch. This causes the top FET to shut off,
disconnecting the regulator from it’s input voltage. The
Soft?Start capacitor is then slowly discharged by a 2.0 m A
current source until it reaches it’s lower 0.7 V threshold. The
regulator will then attempt to restart normally, operating in it’s
extended off time mode with a 50% duty cycle, while the
Soft?Start capacitor is charged with a 60 m A charge current.
If the short circuit condition persists, the regulator output
will not achieve the 1.0 V low V FB comparator threshold
before the Soft?Start capacitor is charged to it’s upper 2.5 V
threshold. If this happens the cycle will repeat itself until the
short is removed. The Soft?Start charge/discharge current
ratio sets the duty cycle for the pulses (2.0 m A/60 m A = 3.3%),
while actual duty cycle is half that due to the extended off time
mode (1.65%).
This protection feature results in less stress to the regulator
components, input power supply, and PC board traces than
occurs with constant current limit protection (see Figures 18
and 19).
If the short circuit condition is removed, output voltage will
rise above the 1.0 V level, preventing the FAULT latch from
being set, allowing normal operation to resume.
M 50.0 m s
Trace 4? 5.0 V from PC Power Supply (2.0 V/div.)
Trace 2? Inductor Switching Node (2.0 V/div.)
Figure 19. Demonstration Board Startup with
Regulator Output Shorted To Ground
Overvoltage Protection
Overvoltage protection (OVP) is provided as result of the
normal operation of the V 2 control topology and requires no
additional external components. The control loop responds to
an overvoltage condition within 100 ns, causing the top
MOSFET to shut off, disconnecting the regulator from it’s
input voltage. The bottom MOSFET is then activated, resulting
in a “crowbar” action to clamp the output voltage and prevent
damage to the load (see Figures 20 and 21 ). The regulator will
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| CS5165AGDW16G | 功能描述:DC/DC 开关控制器 5-Bit Synchronous Dual N-Channel Buck RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| CS5165AGDWR16 | 功能描述:DC/DC 开关控制器 5-Bit Synchronous RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| CS5165AGDWR16G | 功能描述:DC/DC 开关控制器 ANA BUCK SYNC 5BIT CNTRLR RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| CS-5165DW16 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage-Mode SMPS Controller |
| CS-5165DWR16 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Voltage-Mode SMPS Controller |
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