参数资料
| 型号： | ADP1610ARMZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 1.2A 8MSOP |
| 产品培训模块： | Fully Isolated ADM3251E RS-232 Transceiver |
| 标准包装： | 1 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 12V |
| 输入电压： | 2.5 V ~ 5.5 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 700kHz，1.23MHz |
| 电流 - 输出： | 1.2A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-MSOP |
| 产品目录页面： | 791 (CN2011-ZH PDF) |
| 其它名称： | ADP1610ARMZ-R7DKR |
ADP1610
DIODE SELECTION
The output rectifier conducts the inductor current to the
The regulator loop gain is calculated using the following
equation:
A VL =
× × G MEA × Z COMP × G CS × Z OUT
output capacitor and load while the switch is off. For high
efficiency, minimize the forward voltage drop of the diode.
For this reason, Schottky rectifiers are recommended. The
following are recommended Schottky diode manufacturers:
? ON Semiconductor
? Diodes, Inc.
V FB V IN
V OUT V OUT
where:
A VL is the loop gain.
V FB is the feedback regulation voltage, 1.230 V.
V OUT is the regulated output voltage.
(14)
V OUT ? V IN ? MAX
However, for high voltage, high temperature applications, where
the Schottky rectifier reverse leakage current becomes significant
and can degrade efficiency, use an ultrafast junction diode.
Make sure that the diode is rated to handle the average output
load current. Many diode manufacturers derate the current
capability of the diode as a function of the duty cycle. Verify
that the output diode is rated to handle the average output load
current with the minimum duty cycle. The minimum duty cycle
of the ADP1610 is calculated by the following equations:
D MIN = (12)
V OUT
V IN is the input voltage.
G MEA is the error amplifier transconductance gain.
Z COMP is the impedance of the series RC network from COMP
to GND.
G CS is the current sense transconductance gain (the inductor
current divided by the voltage at COMP), which is internally
set by the ADP1610.
Z OUT is the impedance of the load and output capacitor.
To determine the crossover frequency, it is important to note
that at that frequency the compensation impedance (Z COMP ) is
dominated by the resistor, and the output impedance (Z OUT ) is
dominated by the impedance of the output capacitor. Therefore,
A VL =
× × G MEA × R COMP × G CS ×
where V IN-MAX is the maximum input voltage.
LOOP COMPENSATION
The ADP1610 uses external components to compensate the
regulator loop, allowing optimization of the loop dynamics
when solving for the crossover frequency, the equation (by
definition of the crossover frequency) is simplified to
V FB V IN 1
V OUT V OUT 2 π × f C × C OUT
= 1 (15)
? V IN
?
F Z ( RHP ) = ? ?
? × LOAD
?
2 π × L
2 π × f C × C OUT × V OUT × V OUT
R COMP = (16)
for a given application.
The step-up converter produces an undesirable right-half plane
zero in the regulation feedback loop. This requires compensating
the regulator such that the crossover frequency occurs well below
the frequency of the right-half plane zero. The right-half plane
zero is determined by the following equation:
2
R
(13)
? V OUT ?
where:
f C is the crossover frequency.
R COMP is the compensation resistor.
R COMP is calculated using the following equation:
V FB × V IN × G MEA × GCS
V FB = 1.23, G MEA = 100 μ S, and G CS = 2 S is calculated using the
following equation:
where:
F Z (RHP) is the right-half plane zero.
R LOAD is the equivalent load resistance or the output voltage
R COMP =
2 . 55 × 10 4 × f C × C OUT × V OUT × V OUT
V IN
(17)
divided by the load current.
To stabilize the regulator, make sure that the regulator crossover
frequency is less than or equal to one-fifth of the right-half plane
When the compensation resistor is known, the zero formed
by the compensation capacitor and resistor is to be set to one-
fourth of the crossover frequency using the following equation:
zero and less than or equal to one-fifteenth of the switching
frequency.
C COMP =
2
π × f C × R COMP
(18)
where C COMP is the compensation capacitor.
Rev. A | Page 13 of 20
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADP1610-BL1-EVZ | 制造商:Analog Devices 功能描述:Evaluation Board For Step-Up DC-DC Converter 制造商:Analog Devices 功能描述:BLANK ADISIMPOWER EVAL ADP1610 - Boxed Product (Development Kits) |
| ADP1610-EVALZ | 功能描述:BOARD EVALUATION FOR ADP1610 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 标准包装:1 系列:- 主要目的:DC/DC，步降 输出及类型:1，非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND |
| ADP1611 | 制造商:AD 制造商全称:Analog Devices 功能描述:Constant-Frequency, Current-Mode Step-Up DC/DC Controller |
| ADP1611ARMZ-R7 | 功能描述:IC REG BOOST ADJ 1.2A 8MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:20 系列:SIMPLE SWITCHER® 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:12V 输入电压:4 V ~ 60 V PWM 型:电压模式 频率 - 开关:52kHz 电流 - 输出:1A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:通孔 封装/外壳:16-DIP（0.300"，7.62mm） 包装:管件 供应商设备封装:16-DIP 其它名称:*LM2575HVN-12LM2575HVN-12 |
| ADP1611-EVAL | 制造商:AD 制造商全称:Analog Devices 功能描述:20 V,1.2 MHz Step-Up DC-to-DC Switching Converter |
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