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参数资料
| 型号： | MAX8614ETD+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/15页 |
| 文件大小： | 0K |
| 描述： | IC DC-DC CONV DL CCD 14TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 转换器，CCD |
| 输入电压： | 2.7 V ~ 5.5 V |
| 输出数： | 2 |
| 输出电压： | 最高可调至 24V，最低可调至 -10V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
Dual-Output (+ and -) DC-DC
Converters for CCD
Functional Diagram
ERROR
MAX8614A
AMPLIFIER
PWM
COMPARATOR
MAX8614B
V CC
INVERTER
CONTROL
LOGIC
LXN
INVERTER
CURRENT SENSE
FBN
ONBST
ONINV
BIAS
1.01V
REFERENCE
1.25V
REF
FLT
SEQ
AV CC
AND
CONTROL
BLOCK
SOFT-START
1MHz
OSCILLATOR
ERROR
PVP
AMPLIFIER
PWM
COMPARATOR
STEP-UP
LXP
CONTROL
LOGIC
PGND
STEP-UP
CURRENT SENSE
FBP
GND
Detailed Description
The MAX8614A/MAX8614B generate both a positive and
negative output voltage by combining a step-up and an
inverting DC-DC converter on one IC. Both the step-up
converter and the inverter share a common clock. Each
output is independently regulated.
Each output is separately controlled by a pulse-width-
modulated (PWM) current-mode regulator. This allows
the converters to operate at a fixed frequency (1MHz)
for use in noise-sensitive applications. The 1MHz
switching rate allows for small external components.
Both converters are internally compensated and are
optimized for fast transient response (see the Load-
Transient Response/Voltage Positioning section).
Step-Up Converter
The step-up converter generates a positive output volt-
age up to 24V. An internal power switch, internal True-
Shutdown load switch (PVP), and external catch diode
allow conversion efficiencies as high as 90%. The inter-
nal load switch disconnects the battery from the load
by opening the battery connection to the inductor, pro-
viding True Shutdown. The internal load switch stays on
at all times during normal operation. The load switch is
used in the control scheme for the converter and can-
not be bypassed.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8614EVKIT | 功能描述:直流/直流开关转换器 Evaluation Kit for the MAX8614A/MAX8614B RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX8615ETD+ | 制造商:Maxim Integrated Products 功能描述:DUAL OUTPUT CCD AND OLE SUPPLY IN 3MMX3MM TDF - Rail/Tube |
| MAX8615ETD+T | 制造商:Maxim Integrated Products 功能描述:DUAL OUTPUT CCD AND OLE SUPPLY IN 3 - Tape and Reel |
| MAX8617ETL+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8617EVKIT+ | 制造商:Maxim Integrated Products 功能描述:MAXIM EVALUATION KIT - Boxed Product (Development Kits) |
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