参数资料
| 型号： | ISL8106IRZ |
| 厂商： | Intersil |
| 文件页数： | 6/15页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 16-QFN |
| 标准包装： | 75 |
| 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： | -40°C ~ 85°C |
| 封装/外壳： | 16-VQFN 裸露焊盘 |
| 包装： | 管件 |
ISL8106
Electrical Specifications
Recommended Operating Conditions, unless otherwise noted specifications in bold are valid for process,
temperature, and line operating conditions.
PARAMETER
PGOOD Soft-Start Delay
SYMBOL
TSS
TEST CONDITIONS
EN High to PGOOD High; ISL8106CRZ
EN High to PGOOD High; ISL8106IRZ
MIN
2.20
2.20
TYP
2.75
2.75
MAX
3.30
3.50
UNIT
ms
ms
PROTECTION
BSOC OCP Threshold Current
IOC
ISL8106CRZ
ISL8106IRZ
-33
-33
-26
-26
-19
-17
μ A
μ A
BSOC Short-Circuit Threshold Current
ISC
-50
μ A
UVP Threshold Voltage
OVP Rising Threshold Voltage
OVP Falling Threshold Voltage
OTP Rising Threshold Temperature
OTP Temperature Hysteresis
VUV
VOVR
VOVF
TOTR
TOTHYS
(Note 3)
(Note 3)
81
113
84
116
103
150
25
87
119
%
%
%
°C
°C
Functional Pin Descriptions
GND (Bottom terminal pad)
Signal common of the IC. Unless otherwise stated, signals
are referenced to the GND pin, not the PGND pin. Connect
the GND pad of the ISL8106 to the signal ground layer of the
pcb using at least five vias, for a robust thermal and
electrical conduction path.
The best tie-point between the signal ground and the power
ground is at the negative side of the output capacitors that is
not in the return path of the inductor ripple current flowing
through the output capacitors.
VIN (Pin 1)
The VIN pin measures the converter input voltage with
respect to the GND pin. VIN is a required input to the R 3
PWM modulator. The VIN pin is also the input source for the
integrated +5V LDO regulator.
VCC (Pin 2)
The VCC pin is the output of the integrated +5V LDO regulator,
which provides the bias voltage for the IC. The VCC pin
delivers regulated +5V whenever the EN pin is pulled above
V ENTHR . For best performance, the LDO requires at least a
1μF MLCC decouple capacitor to the GND pin.
FCCM (Pin 3)
The FCCM pin configures the controller to operate in forced-
continuous-conduction-mode (FCCM) or diode-emulation-
mode (DEM). DEM is disabled when the FCCM pin is pulled
above the rising threshold voltage V FCCMTHR , and DEM is
enabled when the FCCM pin is pulled below the falling
threshold voltage V FCCMTHF.
EN (Pin 4)
The EN pin is the on/off switch of the IC. When the EN pin is
pulled above the rising threshold voltage V ENTHR, V CC will
ramp up and begin regulation. The soft-start sequence
begins once V CC ramps above the power-on reset (POR)
6
rising threshold voltage V CCTHR . When the EN pin is pulled
below the falling threshold voltage V ENTHF , PWM
immediately stops and V CC decays below the POR falling
threshold voltage V CCTHF , at which time the IC turns off.
COMP (Pin 5)
The COMP pin is the output of the control-loop error
amplifier. Loop compensation components connect from the
COMP pin to the FB pin.
FB (Pin 6)
The FB pin is the inverting input of the control loop error
amplifier. The converter will regulate to 600mV at the FB pin
with respect to the GND pin. Scale the desired output
voltage to 600mV with a voltage divider network made from
resistors R TOP and R BOTTOM . Loop compensation
components connect from the FB pin to the COMP pin.
FSET (Pin 7)
The FSET pin programs the PWM switching frequency of the
converter. Connect a resistor R FSET and a 10nF capacitor
C FSET from the FSET pin to the GND pin.
VO (Pin 8)
The VO pin makes a direct measurement of the converter
output voltage used exclusively by the R 3 PWM modulator.
The VO pin should be connected to the top of feedback
resistor R TOP at the converter output. Refer to Typical
Application Schematic.
BSOC (Pin 9)
The BSOC pin is the input to the overcurrent protection
(OCP) and short-circuit protection (SCP) circuits. Connect a
resistor R BSOC between the BSOC pin and the LX pin.
Select the value of R BSOC that will force the BSOC pin to
source the I BSOC threshold current I OC when the peak
inductor current reaches the desired OCP setpoint. The SCP
threshold current I SC is fixed at twice the OCP threshold
current I OC .
FN9283.1
November 10, 2006
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| 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) |
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