参数资料
型号: ISL6219ACAZ-T
厂商: Intersil
文件页数: 6/17页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 28-QSOP
标准包装: 2,500
PWM 型: 电压模式
输出数: 3
频率 - 最大: 1.5MHz
占空比: 75%
电源电压: 4.75 V ~ 5.25 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -10°C ~ 85°C
封装/外壳: 28-SSOP(0.154",3.90mm 宽)
包装: 带卷 (TR)
ISL6219A
Electrical Specifications
Operating Conditions: V CC = 5V, T A = -10°C to +85°C, Unless Otherwise Specified (Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
PROTECTION and MONITOR
Overvoltage Threshold
Undervoltage Threshold
VSEN Rising
VSEN Falling
VSEN Rising
VSEN Falling
112
-
85
80
115
VID
92
83
12
-
95
90
%V DAC
%V DAC
%V DAC
%V DAC
NOTES:
2. These parts are designed and adjusted for accuracy within the system tolerance given in the Electrical Specifications. The system tolerance
accounts for offsets in the differential and error amplifiers; reference-voltage inaccuracies; temperature drift; and the full DAC adjustment range.
3. VID input levels above 2.9V may produce an reference-voltage offset inaccuracy. Use a current limit resistor when pull up to 5V.
R C
C C
COMP
VIN
L 1
FB
ERROR
AMPLIFIER
-
+
+
+
-
PWM
CIRCUIT
PWM
CIRCUIT
PWM1
ISEN1
DAC
&
REFERENCE
+
-
PWM
CIRCUIT
R ISEN1
VIN
L 2
-
AVERAGE
PWM2
V OUT
R FB
I OUT
+
ISEN2
R ISEN2
VIN
C O
μ P
LOAD
CURRENT
+
+
-
-
SENSE
CURRENT
SENSE
CURRENT
PWM3
ISEN3
L 3
ISL6219A
-
SENSE
R ISEN3
VSEN
FIGURE 1. SIMPLIFIED BLOCK DIAGRAM OF THE ISL6219A
6
FN9093.1
March 20, 2007
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