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参数资料
| 型号： | ISL8106CRZ-T |
| 厂商： | Intersil |
| 文件页数： | 14/15页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 16-QFN |
| 标准包装： | 6,000 |
| 系列： | Robust Ripple Regulator™ (R³) |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 600kHz |
| 电源电压： | 7 V ~ 25 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 16-VQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
ISL8106
The control loop model of the ISL8106 is partitioned into
function blocks consisting of:
- The duty cycle to Vo transfer function G VD (s) which is
determined by the value of the output power
components, input voltage, and output voltage.
- The Vcomp to duty cycle transfer function F m (s) which
is determined by the PWM frequency, input voltage,
output voltage, resistor R FSET , and capacitor C FSET.
120
100
80
60
40
20
0
20
Vcomp to Vo Transfer Function Gvovc(s)
90
60
30
0
30
60
90
120
1 . 10
1 . 10
1 . 10
1 . 10
- The product of the G VD (s) and F m (s) transfer functions
is expressed as the V COMP to Vo transfer function
40
10
100
3
4
5
150
6
G VOVC (s).
- The type-two compensation network G COMP (s) that
connects across the COMP and FB pins.
- The product of the G COMP (s) and G VOVC (s) transfer
functions is expressed as the loop transfer function T(s).
T(s)=G COMP (s) x G VOVC (s)
Frequency (Hz)
Gain (Gvovc)
Phase (Gvovc)
FIGURE 9. OPEN LOOP TRANSFER FUNCTION
Voltage Loop Gain T(s)
120
90
V REF
+
?
G COMP (s)
V COMP
G VOVC (s)
V o
100
80
60
40
75
60
45
30
20
15
FIGURE 8. SYSTEM CONTROL BLOCK DIAGRAM
0
0
1 . 10
1 . 10
1 . 10
1 . 10
The compensator transfer function can be written as:
20
40
10
100
3
4
5
15
30
6
ω i ? 1 + ----------
G COMP ( s ) = ----------------------------------
s ? 1 + ----------
s
ω z1
s
ω p1
(EQ. 19)
Gain (Tv)
Phase (Tv)
Frequency (Hz)
ω z1 = -------------------------------------------------
f z1 = ----------
where the compensator zero fz1 is
1
R COMP ? C COMP2
ω z1
2 ? π
the compensator pole fp1 is
(EQ. 20)
(EQ. 21)
FIGURE 10. CLOSED LOOP TRANSFER FUNCTION
ω p1 = ------------------------ + ------------------------
1
f p1 = ----------
ω p1
2 ? π
1 1
C COMP1 C COMP2
?
---------------------
R COMP
(EQ. 22)
(EQ. 23)
and
ω i = --------------------------------------------------------------------------------------
1
R COMP ? [ C COMP1 + C COMP2 ]
(EQ. 24)
The Your local Intersil representative can provide a PC-
based tool that can be used to calculate compensation
network component values and help simulate the loop
frequency response. The compensation network consists of
the internal error amplifier of the ISL8106 and the external
components R TOP , R COMP , C COMP1 , and C COMP2 as well as
the frequency setting components R FSET , and C FSET, are
identified in the schematic Figure 7.
14
FN9283.1
November 10, 2006
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL8106EVAL1Z | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Wide VIN, 7V to 25V, Single-Phase PWM Controller with Integrated MOSFET Drivers |
| ISL8106IRZ | 功能描述:IC REG CTRLR BUCK PWM VM 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:Robust Ripple Regulator™ (R³) 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) |
| ISL8106IRZ-T | 功能描述:IC REG CTRLR BUCK PWM VM 16-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:Robust Ripple Regulator™ (R³) 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) |
| ISL8107 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Single-Phase Pulse-Width Modulation (PWM) Controller with Integrated High-Side Gate Drivers |
| ISL8107EVAL1Z | 功能描述:EVAL BOARD FOR ISL8107 RoHS:是 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 传感器类型:CMOS 成像，彩色（RGB） 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
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