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參數(shù)資料
| 型號： | ISL6522IBZ-T |
| 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, MS-012-AB, SOIC-14 |
| 文件頁數(shù)： | 4/14頁 |
| 文件大?。?/td> | 473K |
| 代理商： | ISL6522IBZ-T |
4
FN9030.7
March 4, 2005
Functional Pin Descriptions
RT
This pin provides oscillator switching frequency adjustment.
By placing a resistor (R
T
) from this pin to GND, the nominal
200kHz switching frequency is increased according to the
following equation:
Conversely, connecting a pull-up resistor (R
T
) from this pin
to V
CC
reduces the switching frequency according to the
following equation:
Upper Gate Sink
R
UGATE
ISL6522C, I
LGATE
= 0.3A
-
5.5
10
ISL6522I, I
LGATE
= 0.3A
-
5.5
7.2
Lower Gate Source
I
LGATE
V
CC
= 12V, V
LGATE
= 6V
300
450
-
mA
Lower Gate Sink
R
LGATE
ISL6522C, I
LGATE
= 0.3A
-
3.5
6.5
ISL6522I, I
LGATE
= 0.3A
-
3.5
4.5
PROTECTION
OCSET Current Source
I
OCSET
V
OCSET
= 4.5VDC
170
200
230
μ
A
Soft-Start Current
I
SS
-
10
-
μ
A
Electrical Specifications
Recommended Operating Conditions, Unless Otherwise Noted
(Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Typical Performance Curves
FIGURE 1. R
T
RESISTANCE vs FREQUENCY
FIGURE 2. BIAS SUPPLY CURRENT vs FREQUENCY
10
100
1000
SWITCHING FREQUENCY (kHz)
R
)
10
100
1000
R
T
PULLUP
TO +12V
R
T
PULLDOWN
TO V
SS
100
200
300
400
500
600
700
800
900
1000
80
70
60
50
40
30
20
10
0
I
V
SWITCHING FREQUENCY (kHz)
C
GATE
= 1000pF
C
GATE
= 3300pF
C
GATE
= 10pF
8
9
10
11
12
13
14
7
6
5
4
3
2
1
OCSET
SS
EN
COMP
FB
RT
VCC
LGATE
PGND
BOOT
UGATE
PHASE
GND
PVCC
SOIC
and
TSSOP
QFN
1
3
4
15
SS
COMP
FB
EN
N
O
R
V
16
14
13
2
12
10
9
11
6
5
7
8
PVCC
LGATE
PGND
BOOT
N
G
P
U
GND
Fs
200kHz
------------------
6
T
+
≈
(R
T
to GND)
Fs
200kHz
------------------
7
T
–
≈
(R
T
to 12V)
ISL6522
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|---|---|
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| ISL6522IBZ-TS2698 | 制造商:Intersil Corporation 功能描述:PB-FREE PWM CONTROLLER,DDR REGULATOR,14 LD NSOIC,T&R - Tape and Reel 制造商:Intersil Corporation 功能描述:IC REG CTRLR BUCK PWM 制造商:Intersil 功能描述:PWM CNTRLR DDRG 14LD N |
| ISL6522IR | 功能描述:IC REG CTRLR BST PWM VM 16-QFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| ISL6522IRR5190 | 制造商:Intersil Corporation 功能描述: |
| ISL6522IR-T | 功能描述:IC REG CTRLR BST PWM VM 16-QFN RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
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