参数资料
型号: ISL6420BIRZ-TK
厂商: Intersil
文件页数: 8/21页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 20-QFN
标准包装: 1,000
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 ~ 28 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-VFQFN 裸露焊盘
包装: 带卷 (TR)
ISL6420B
Electrical Specifications
Operating Conditions: VIN = 12V, PVCC shorted with VCC5, T A = +25°C. Boldface limits
apply over the operating temperature range, -40°C to +85°C. (Continued)
MIN
MAX
PARAMETER
SYMBOL
TEST CONDITIONS
(Note 12)
TYP
(Note 12) UNITS
Ramp Amplitude (Note 10)
Δ V OSC
-
1.25
-
V P-P
REFERENCE AND SOFT-START/ENABLE
Internal Reference Voltage
Soft-Start Current
Soft-Start Threshold
Enable Low
V REF
I SS
V SOFT
0.594
-
1.0
-
-
10
-
-
0.606
-
-
1.0
V
μA
V
V
(Converter Disabled)
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 10)
-
88
-
dB
Gain-Bandwidth Product
GBW
-
15
-
MHz
(Note 10)
Slew Rate (Note 10)
SR
-
6
-
V/μs
COMP Souce/Sink Current
(Note 10)
OVERCURRENT PROTECTION
±0.4
mA
OCSET Current Source
I OCSET
V OCSET = 4.5V
80
100
120
μA
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; ~3μs noise
filter
Fraction of the set point; ~3μs noise
filter
V PULLUP = 5.0V (Note 11)
I PGOOD = 4mA
CDEL = 0.1μF
CDEL threshold = 2.5V
-14
9
-
-
-
-
-
-10
-
-
-
125
2
2.5
-8
16
1
0.5
-
-
-
%
%
μA
V
ms
μA
V
EXTERNAL REFERENCE
Min External Reference Input at
GPIO1/REFIN
Max External Reference Input
at GPIO1/REFIN
V MSET/MODE = H, C REFOUT = 2.2μF
V MSET/MODE = H, C REFOUT = 2.2μF
-
-
0.600
-
-
1.250
V
V
REFERENCE BUFFER
Buffered Output Voltage -
Internal Reference
Buffered Output Voltage -
Internal Reference
V REFOUT
V REFOUT
I REFOUT = 1mA,V MSET/MODE = High,
C REFOUT = 2.2μF, T A = -40°C to +85°C
I REFOUT = 20mA,V MSET/MODE = High,
C REFOUT = 2.2μF, T A = -40°C to +85°C
0.583
0.575
0.595
0.587
0.607
0.599
V
V
8
FN6901.1
December 4, 2009
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