参数资料
型号: ISL6443IRZ
厂商: Intersil
文件页数: 3/18页
文件大小: 0K
描述: IC CTRLR SGL/STEP DOWN PWM 28QFN
产品培训模块: Solutions for Industrial Control Applications
标准包装: 60
应用: 电源
电流 - 电源: 50µA
电源电压: 5.6 V ~ 24 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-VFQFN 裸露焊盘
供应商设备封装: 28-QFN 裸露焊盘(5x5)
包装: 管件
产品目录页面: 1243 (CN2011-ZH PDF)
Block Diagram
BOOT1
PGOOD
SD1
VIN
SGND
SD2
VCC
BOOT2
UGATE1
PHASE1
ADAPTIVE DEAD-TIME
ADAPTIVE DEAD-TIME
UGATE2
PHASE2
VCC_5V
DIODE EMULATION
DIODE EMULATION
VCC
LGATE1
PGND
V/I SAMPLE TIMING
0.8V REFERENCE
POR
ENABLE
BIAS SUPPLIES
V/I SAMPLE TIMING
PGND
LGATE2
GATE3
+
V E
+
REFERENCE
FB3
g m *V E
-
FAULT LATCH
SOFT-START
UV
PGOOD
UV
PGOOD
1400k Ω
18.5pF
18.5pF
1400k Ω
FB1
+ 0.8V
REF
180k Ω
-
+
16k Ω
ERROR AMP 1
-
+
PWM1
OC1
OC2
PWM2
-
+
16k Ω
ERROR AMP 2
-
+
180k Ω
VSEN2
SOFT2
SS1
+
0.8V
REF
DUTY CYCLE RAMP GENERATOR
ISEN1
CURRENT
-
PWM CHANNEL PHASE CONTROL
-
CURRENT
ISEN2
SAMPLE
+
CURRENT
SAMPLE
CURRENT
SAMPLE
+
SAMPLE
OCSET1
OCSET2
+
0.8V REFERENCE
0.8V REFERENCE
+
-
+
OC1
VIN
SYNC
VCC
OC2
-
+
SAME STATE FOR
2 CLOCK CYCLES
REQUIRED TO LATCH
OVERCURRENT FAULT
SAME STATE FOR
2 CLOCK CYCLES
REQUIRED TO LATCH
OVERCURRENT FAULT
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