參數(shù)資料
型號(hào): ISL6532CR-T
廠商: INTERSIL CORP
元件分類: 穩(wěn)壓器
英文描述: PWM Control Circuit 16-PDIP 0 to 70
中文描述: SWITCHING CONTROLLER, 280 kHz SWITCHING FREQ-MAX, PQCC20
封裝: 6 X 6 MM, PLASTIC, MO-220VJJB, QFN-20
文件頁(yè)數(shù): 13/14頁(yè)
文件大?。?/td> 365K
代理商: ISL6532CR-T
13
from the switching losses seen when sinking current. When
sourcing current, the upper MOSFET realizes most of the
switching losses. The lower switch realizes most of the
switching losses when the converter is sinking current (see
the equations below). These equations assume linear voltage-
current transitions and do not adequately model power loss
due the reverse-recovery of the upper and lower MOSFET’s
body diode. The gate-charge losses are dissipated in part by
the ISL6532 and do not significantly heat the MOSFETs.
However, large gate-charge increases the switching interval,
t
SW
which increases the MOSFET switching losses. Ensure
that both MOSFETs are within their maximum junction
temperature at high ambient temperature by calculating the
temperature rise according to package thermal-resistance
specifications. A separate heatsink may be necessary
depending upon MOSFET power, package type, ambient
temperature and air flow.
ISL6532 Application Circuit
Figure 7 shows an application circuit utilizing the ISL6532.
Detailed information on the circuit, including a complete Bill-
of-Materials and circuit board description, can be found in
Application Note AN1055.
P
LOWER
= Io
2
x r
DS(ON)
x (1 - D)
Where: D is the duty cycle = V
OUT
/ V
IN
,
t
SW
is the combined switch ON and OFF time, and
f
s
is the switching frequency.
Approximate Losses while Sourcing current
Io
2
r
DS ON
Approximate Losses while Sinking current
P
UPPER
= Io
2
x r
DS(ON)
x D
P
LOWER
Io
2
r
DS ON
)
×
1
D
(
)
×
1
2
--
Io
V
IN
×
t
SW
f
s
×
×
+
=
P
UPPER
)
×
D
×
1
2
--
Io
V
IN
×
t
SW
f
s
×
×
+
=
FIGURE 7. DDR SDRAM AND AGP VOLTAGE REGULATOR USING THE ISL6532
10.0k
1
μ
F
5VSBY
UGATE
FB
COMP
ISL6532
C
17,18
LGATE
VCC12
VTT
VTT
+
V
TT
VREF_IN
VREF_OUT
VTTSNS
PGOOD
+3.3V
V
DDQ
2.5V
Q
1,3
+
+
Q
2,4
VCC5
NCH
G
V
REF
V
DDQ
Q
5
VDDQ
VDDQ
G
5
P
P
S5
S3
SLP_S5#
SLP_S3#
PGOOD
C
16
1
μ
F
R
2
L
1
2.1
μ
H
L
2
2.1
μ
H
4.99k
R
1
C
19
0.47
μ
F
C
6-8
1800
μ
F
C
9-12
22
μ
F
6.8nF
C
14
825
R
6
C
15
1000pF
C
13
56nF
R
5
R
4
R
3
22.6
1.74k
19.1k
1.25V
+
V
DDQ
C
20
220
μ
F
C
21
220
μ
F
C
26
0.1
μ
F
C
27
0.1
μ
F
C
1-3
2200
μ
F
C
4,5
1
μ
F
ISL6532
相關(guān)PDF資料
PDF描述
ISL6532CRZ PWM Control Circuit 16-PDIP 0 to 70
ISL6532CRZ-T PWM Control Circuit 16-SO 0 to 70
ISL6536AIBZ-T Four Channel Supervisory IC
ISL6536A PWM Control Circuit 16-SOIC -40 to 85
ISL6536AIB PWM Control Circuit 16-SOIC -40 to 85
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL6532CRZ 功能描述:IC CTRLR PWM 2CHAN DDR 20QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 應(yīng)用:熱電冷卻器 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.173",4.40mm 寬)裸露焊盤 供應(yīng)商設(shè)備封裝:28-TSSOP 裸露焊盤 包裝:管件 產(chǎn)品目錄頁(yè)面:1410 (CN2011-ZH PDF)
ISL6532CRZ-T 功能描述:IC REG/CTRLR ACPI DUAL DDR 20QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 應(yīng)用說(shuō)明:Ultrasound Imaging Systems Application Note 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:37 系列:- 應(yīng)用:醫(yī)療用超聲波成像,聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-TQFN-EP(8x8) 包裝:管件
ISL6532EVAL1 功能描述:EVAL BOARD 1 FOR ISL6532 RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 評(píng)估板 - 線性穩(wěn)壓器 (LDO) 系列:* 產(chǎn)品變化通告:1Q2012 Discontinuation 30/Mar/2012 設(shè)計(jì)資源:NCP590MNDPTAGEVB Gerber Files 標(biāo)準(zhǔn)包裝:1 系列:- 每 IC 通道數(shù):2 - 雙 輸出電壓:1.8V,2.8V 電流 - 輸出:300mA 輸入電壓:2.1 ~ 5.5 V 穩(wěn)壓器類型:正,固定式 工作溫度:-40°C ~ 85°C 板類型:完全填充 已供物品:板 已用 IC / 零件:NCP590MNDP 其它名稱:NCP590MNDPTAGEVB-NDNCP590MNDPTAGEVBOS
ISL6534CR 功能描述:IC REG TRPL BCK/LINEAR 32-QFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 + 切換式 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 拓?fù)?降壓(降壓)同步(2),線性(LDO)(1) 功能:任何功能 輸出數(shù):3 頻率 - 開關(guān):300kHz 電壓/電流 - 輸出 1:控制器 電壓/電流 - 輸出 2:控制器 電壓/電流 - 輸出 3:控制器 帶 LED 驅(qū)動(dòng)器:無(wú) 帶監(jiān)控器:無(wú) 帶序列發(fā)生器:是 電源電壓:4.5 V ~ 24 V 工作溫度:-40°C ~ 85°C 安裝類型:* 封裝/外殼:28-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:* 包裝:帶卷 (TR) 其它名稱:ISL6402IVZ-TTR
ISL6534CR-T 功能描述:IC REG TRPL BCK/LINEAR 32-QFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 + 切換式 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 拓?fù)?降壓(降壓)同步(3),線性(LDO)(2) 功能:任何功能 輸出數(shù):5 頻率 - 開關(guān):300kHz 電壓/電流 - 輸出 1:控制器 電壓/電流 - 輸出 2:控制器 電壓/電流 - 輸出 3:控制器 帶 LED 驅(qū)動(dòng)器:無(wú) 帶監(jiān)控器:無(wú) 帶序列發(fā)生器:是 電源電壓:5.6 V ~ 24 V 工作溫度:-40°C ~ 85°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:*