參數(shù)資料
型號: MAX1565
廠商: Maxim Integrated Products, Inc.
英文描述: Small, High-Efficiency, Five-Channel Digital Still Camera Power Supply
中文描述: 小型、高效率、5路輸出數(shù)碼相機電源
文件頁數(shù): 23/26頁
文件大小: 512K
代理商: MAX1565
When the MOSFET turns on, C1 discharges through
D3, thereby charging C3 to V
OUT
- minus the drop
across D3 to create roughly the same voltage as
V
OUT
+ at V
OUT
- but with inverted polarity.
If different magnitudes are required for the positive and
negative voltages, a linear regulator can be used at
one of the outputs to achieve the desired voltages. One
such connection is shown in Figure 10. This circuit is
somewhat unique in that a positive output linear regula-
tor is able to regulate the negative output. It does this
by controlling the charge to the flying capacitor rather
than directly regulating at the output.
Adding a MAX1801 Slave
The MAX1801 is a 6-pin SOT slave DC-to-DC controller
that can be connected to generate additional output
voltages. It does not generate its own reference or
oscillator. Instead, it uses the reference and oscillator
of the MAX1565 (Figure 11). The MAX1801 controller
operation and design are similar to that of a MAX1565
AUX controller. All comments in the
Auxiliary Controller
Component Selection
section also apply to add-on
MAX1801 slave controllers. For more details, refer to
the MAX1801 data sheet.
M
Small, High-Efficiency, Five-Channel
Digital Still Camera Power Supply
______________________________________________________________________________________
23
MAX1565
(PARTIAL)
AUX_
PWM
OUTSU
DL_
FB_
C2
1
μ
F
TO V
BATT
1
μ
F
L1
10
μ
H
D2
R1
1M
R2
90.9k
C1
1
μ
F
D3
D1
Q1
C3
1
μ
F
V
OUT+
+15V
20mA
V
OUT-
-15V
10mA
Figure 9. ±15V Output Using a Boost with Charge-Pump
Inversion
MAX1565
(PARTIAL)
AUX_
PWM
OUTSU
DL_
FB_
1
μ
F
TO V
BATT
1
μ
F
10
μ
H
1M
90.9k
1
μ
F
Q1
1
μ
F
1
μ
F
110k
549k
MAX1616
FB_
GND
SHDN
IN
OUT
+1.25V
+15V
20mA
-7.5V
20mA
Figure 10. +15V and -7.5V CCD Bias without Transformer
相關PDF資料
PDF描述
MAX1565ETJ Small, High-Efficiency, Five-Channel Digital Still Camera Power Supply
MAX1566-MAX1567 Six-Channel, High-Efficiency, Digital Camera Power Supplies
MAX156ACNG 8-/4-Channel ADCs with Simultaneous T/Hs and Reference
MAX156BCNG 8-/4-Channel ADCs with Simultaneous T/Hs and Reference
MAX156BENG 8-/4-Channel ADCs with Simultaneous T/Hs and Reference
相關代理商/技術參數(shù)
參數(shù)描述
MAX1565ETJ 功能描述:PMIC 解決方案 5Ch Digital Camera Power Supply RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
MAX1565ETJ+ 功能描述:PMIC 解決方案 5Ch Digital Camera Power Supply RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
MAX1565ETJ+T 功能描述:PMIC 解決方案 5Ch Digital Camera Power Supply RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
MAX1565ETJ-T 功能描述:PMIC 解決方案 5Ch Digital Camera Power Supply RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
MAX1565EVKIT 制造商:Maxim Integrated Products 功能描述:SMALL, HIGH-EFFICIENCY, FIVE-CHANNEL DSC - Bulk