参数资料
型号: MAX1855EEG
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: 稳压器
英文描述: Replaced by TMS320C6202B : Fixed-Point Digital Signal Processor 352-FCBGA
中文描述: SWITCHING CONTROLLER, 550 kHz SWITCHING FREQ-MAX, PDSO24
封装: 0.150 INCH, 0.025 INCH PITCH, QSOP-24
文件页数: 16/33页
文件大小: 840K
代理商: MAX1855EEG
M
High-Speed, Adjustable, Synchronous Step-Down
Controllers with Integrated Voltage Positioning
16
______________________________________________________________________________________
Figure 2. Functional Diagram
REF
-10%
FROM
OUT
REF
7R
R
D0
ERROR
AMP
TOFF
1-SHOT
TON
REF
+10%
CHIP
SUPPLY
x2
SHDN
VPS
CC
VGATE
*
NO OVERVOLTAGE PROTECTION ON THE MAX1854
D1
D2
D3
D4
ON-TIME
COMPUTE
1-SHOT
TRIG
IN
2V TO 28V
TRIG
Q
Q
S
R
2V
REF
R-2R
DAC
REF
REF
PGND
+5V
OUTPUT
CS
DL
CS
V
CC
V
DD
LX
ZERO CROSSING
CURRENT
LIMIT
DH
BST
9R
R
I
LIM
+5V
+5V
Q
SKIP
TON
V+
Σ
MAX1716
MAX1854
MAX1855
S
R
Q
OVP/UVP
DETECT
*
200k
gm
FB
TON SETTING
(kHz)
K-FACTOR
(
μ
s)
5
3.3
2.2
1.8
APPROXIMATE
K-FACTOR ERROR (%)
MIN RECOMMENDED V
BATT
AT
V
OUT
= 1.6V (V)
2.04
2.28
2.84
3.55
200
300
400
550
±
9
±
11
±
15
±
20
Table 3. Approximate K-Factor Errors
相关PDF资料
PDF描述
MAX1854 High-Speed, Adjustable, Synchronous Step-Down Controllers with Integrated Voltage Positioning
MAX1857EUA47 500mA, Low-Dropout, Ripple-Rejecting LDO in MAX
MAX1857 Replaced by TMS320C6202B : Fixed-Point Digital Signal Processor 352-FCBGA
MAX1858 Dual 180∑ Out-of-Phase Buck Controllers with Sequencing/Prebias Startup and POR
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相关代理商/技术参数
参数描述
MAX1855EEG+ 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX1855EEG-T 功能描述:DC/DC 开关控制器 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
MAX1855EVKIT 功能描述:DC/DC 开关控制器 Evaluation Kit for the MAX1716 MAX1854 MAX1855 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
MAX1856EUB 功能描述:电信线路管理 IC RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray
MAX1856EUB+ 功能描述:电信线路管理 IC Synchronizable PWM SLIC Power Supply RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray