参数资料
型号: ISL6420IAZ
厂商: Intersil
文件页数: 7/19页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 20-QSOP
标准包装: 580
PWM 型: 电压模式
输出数: 1
频率 - 最大: 1.4MHz
占空比: 100%
电源电压: 4.5 V ~ 16 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 20-SSOP(0.154",3.90mm 宽)
包装: 管件
ISL6420
Electrical Specifications
Operating Conditions, Unless Otherwise Noted: VIN = 12V, PV CC shorted with V CC5 , T A = +25°C (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
REFERENCE AND SOFT-START/ENABLE
Internal Reference Voltage
V REF
0.594
0.606
V
Soft-Start Current
Soft-Start Threshold
Enable Low (Converter disabled)
I SS
V SOFT
-
1.0
-
10
-
-
-
-
1.0
μ A
V
V
PWM CONTROLLER GATE DRIVERS
Gate Drive Peak Current
-
0.7
-
A
Rise Time
Fall Time
Dead Time Between Drivers
Co = 1000pF
Co = 1000pF
-
-
-
20
20
20
-
-
-
ns
ns
ns
ERROR AMPLIFIER
DC Gain (Note 7)
-
88
-
dB
Gain-Bandwidth Product (Note 7)
Slew Rate (Note 7)
GBW
SR
-
-
15
6
-
-
MHz
V/ μ s
PROTECTION
OCSET Current Source
I OCSET
Vocset = 4.5V
80
100
120
μ A
POWER GOOD AND CONTROL FUNCTIONS
Power-Good Lower Threshold
Power-Good Higher Threshold
PGOOD Leakage Current
PGOOD Voltage Low
PGOOD Delay
CDEL Current for PGOOD
CDEL Threshold
V PG-
V PG+
I PGLKG
Fraction of the set point; ~3 μ s noise filter
Fraction of the set point; ~3 μ s noise filter
V PULLUP = 5.5V
I PGOOD = 4mA
CDEL = 0.1μF
CDEL threshold = 2.5V
-14
10
-
-
-
-
-
-10
-
-
-
125
2
2.5
-8
16
1
0.5
-
-
-
%
%
μ A
V
ms
μ A
V
EXTERNAL REFERENCE
External Reference Input Range at
VMSET/MODE = H, C REFOUT = 2.2μF
0.6
-
1.25
V
GPIO1/REFIN.
REFERENCE BUFFER
Buffered Output Voltage - Internal Reference
V REFOUT
I REFOUT = 20mA,
0.585
0.6V
0.615
V
VMSET/MODE = HIGH,
C REFOUT = 2.2μF, T A = -40°C to +85°C
Buffered Output Voltage - External Reference
V REFOUT
V REFIN = 1.25V, I REFOUT = 20mA,
Vrefin
-
Vrefin
V
VMSET/MODE = HIGH,
C REFOUT = 2.2μF
-0.01
+0.01
Current Drive Capability
C REFOUT = 2.2μF
20
-
-
mA
VOLTAGE MARGINING
Voltage Margining Range (Note 7)
-10
+10
%
CDEL Current for Voltage Margining
-
100
-
μ A
Slew Time
CDEL = 0.1μF, VMSET/MODE = 330k Ω
-
2.5
-
ms
7
FN9151.5
February 13, 2008
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