參數(shù)資料
型號(hào): S-8327
廠商: Seiko Instruments Inc.
英文描述: CMOS PWM-Control Step-Up Switching Regulator(External Transistor)(CMOS PFM(頻率脈沖調(diào)制)控制步升開關(guān)穩(wěn)壓器)
中文描述: 的CMOS脈寬調(diào)制控制升壓開關(guān)穩(wěn)壓器(外部晶體管)(烤瓷的CMOS(頻率脈沖調(diào)制)控制步升開關(guān)穩(wěn)壓器)
文件頁(yè)數(shù): 48/65頁(yè)
文件大小: 569K
代理商: S-8327
47
Collection of Product FAQs
Author: Tachibana Midori
Date: 98/11/12 (Thursday) 10:17 (Modified:)
<Information level>
A:
Public (Printing O.K.)
Index:
B: Technical
<Product>
Division name: 01 IC
Category 1:
11 Power Supply
Category 2:
4. Switching Regulators
Cal No.:
S-8323/24/27/28
Related Documents:
Question:
Is there any way to adjust the output-voltage value using the DAC output of a microcomputer, etc.
Answer:
L
VIN
CIN
Tr2
Tr1
VDD S-8327/8E
EXT
VSS
VOUT
CC
RE
RB
RA
D
VDAC
DAC
Output
Output voltage
VEE
COUT
The output voltage can be adjusted by adding Tr2 and RE to the output-voltage regulation circuit in the
above circuit diagram. If the internal resistance of VOUT, etc. is not taken into account, output voltage
VEE can be represented by the following equation:
RB
+
RA
×
VOUT
=
VEE
RE
VBE
VDAC
×
RA
+
RB
The above equation indicates that output voltage VEE changes with variations in DAC output voltage
VDAC of a microcomputer, etc.
-
相關(guān)PDF資料
PDF描述
S-8324 CMOS PWM/PFM-Control Step-Up Switching Regulator(CMOS PWM/PFM控制步升開關(guān)穩(wěn)壓器)
S-8328 CMOS PWM/PFM-Control Step-Up Switching Regulator(CMOS PWM/PFM控制步升開關(guān)穩(wěn)壓器)
S-8330 Step-Up Switching Regulator For LCD Bias Supply(用于LCD偏置電源的步升開關(guān)穩(wěn)壓器)
S-8331 Step-Up Switching Regulator For LCD Bias Supply(用于LCD偏置電源的步升開關(guān)穩(wěn)壓器)
S-8340 PWM Control High-Frequency Step-Up Switching Regulator-Controllers(PWM控制,高頻步升開關(guān)穩(wěn)壓器-控制器)
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