参数资料
型号: ISL9443IRZ-T7A
厂商: Intersil
文件页数: 5/23页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 32-QFN
标准包装: 1
PWM 型: 电流模式
输出数: 3
频率 - 最大: 1.32MHz
电源电压: 4.5 V ~ 26 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: 32-VFQFN 裸露焊盘
包装: 标准包装
其它名称: ISL9443IRZ-T7ADKR
Block Diagram
BOOT1
PGOOD
EN23
VIN VCC_5V
BOOT2
UGATE1
PHASE1
VCC_5V
VCC_5V
UGATE2
PHASE2
VCC_5V
LGATE1
ADAPTIVE DEAD-TIME
V/I SAMPLE TIMING
ADAPTIVE DEAD-TIME
V/I SAMPLE TIMING
VCC_5V
LGATE2
PGND
PGND
POR
ENABLE
BIAS SUPPLIES
REFERENCE
EN/SS1
VCC_5V
PGND
BOOT3
UGATE3
FAULT LATCH
SOFT-START
EN23
ADAPTIVE DEAD-TIME
PHASE3
(Note 6)
V/I SAMPLE TIMING
VCC_5V
FB1
180k ?
1000k ?
15pF
LGATE3
_
+ 0.7V
+
16k ?
OCP
_
PGND
FB3
REF
ERROR AMP 1
_
PWM1
OC1 OC2 OC3
UV/OV
PWM3
+
0.7V REF
TK/SS3
EN/SS1
+
1.55μA
+
FB1 FB2 FB3
ERROR AMP 3
EN/SS1
OC3
ISEN3
1.3V
VIN
VCC_5V
MINIMUM
ISEN1
CURRENT
SAMPLE
_
+
CURRENT
SAMPLE
DUTY CYCLE RAMP GENERATOR
PWM CHANNEL PHASE CONTROL
SOFT-START
CHANNEL 3
OCSET3
OCSET1
FB2
+
1.75V REFERENCE
-
OC1
PWM2
TK/SS2
+
SAME STATE FOR
2 CLOCK CYCLES
REQUIRED TO LATCH
OC2
ISEN2
CHANNEL 1
OVERCURRENT FAULT
CHANNEL 2
OCSET2
SGND
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