參數(shù)資料
型號(hào): ISL6522IVZ
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller
中文描述: SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO14
封裝: ROHS COMPLIANT, PLASTIC, MO-153-AC, TSSOP-14
文件頁(yè)數(shù): 11/14頁(yè)
文件大?。?/td> 473K
代理商: ISL6522IVZ
11
FN9030.7
March 4, 2005
ISL6522 DC-DC Converter Application
Circuit
Figure 11 shows a DC-DC converter circuit for a
microprocessor application, originally designed to employ
the HIP6006 controller. Given the similarities between the
HIP6006 and ISL6522 controllers, the circuit can be
implemented using the ISL6522 controller without any
modifications. Detailed information on the circuit, including a
complete bill of materials and circuit board description, can
be found in Application Note AN9722. See Intersil’s home
page on the web: http://www.intersil.com.
ISL6522
RT
FB
COMP
SS
REF
-
+
+
-
GND
+
-
OSC
VCC
14
V
IN
C1-3
L1
C6-9
0.1
μ
F
2x 1
μ
F
1206
0.1
μ
F
1
μ
F
1206
15K
3x 680
μ
F
4x 1000
μ
F
UGATE
OCSET
PHASE
BOOT
SPARE
CR1
4148
Q1
3.01K
1000pF
CR2
MBR
340
C13
R1
SPARE
R4
C15
R5
C14
C12
C17-18
C19
R6
C20
U1
RTN
12V
CC
2
10
9
8
7
4
5
1
3
PGND
LGATE
12
11
PVCC
13
JP1
Q2
V
OUT
RTN
ENABLE
R2
1K
COMP
TP1
PHASE
TP2
6
R7
10K
MONITOR AND
PROTECTION
+
-
C16
0.01
μ
F
33pF
SPARE
Component Selection Notes:
C1-C3 - Three each 680
μ
F 25W VDC, Sanyo MV-GX or equivalent.
C6-C9 - Four each 1000
μ
F 6.3W VDC, Sanyo MV-GX or equivalent.
L1 - Core: micrometals T50-52B; winding: ten turns of 17AWG.
CR1 - 1N4148 or equivalent.
CR2 - 3A, 40V Schottky, Motorola MBR340 or equivalent.
Q1, Q2 - Fairchild MOSFET; RFP25N05
FIGURE 11. DC-DC CONVERTER APPLICATION CIRCUIT
R3
1K
ISL6522
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