参数资料
型号: ISL6237IRZ
厂商: Intersil
文件页数: 5/35页
文件大小: 0K
描述: IC MAIN PWR CTRLR QUAD 32-QFN
产品培训模块: Solutions for Industrial Control Applications
标准包装: 60
应用: 控制器,笔记本电脑电源系统
输入电压: 5.5 V ~ 25 V
输出数: 4
输出电压: 多重
工作温度: -40°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-QFN 裸露焊盘(5x5)
包装: 管件
ISL6237
Electrical Specifications
No load on LDO, OUT1, OUT2, and REF, V IN = 12V, EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V,
V EN_LDO = 5V, T A = -40°C to +100°C, unless otherwise noted. Typical values are at T A = +25°C. (Continued)
MIN
MAX
PARAMETER
LDO Short-Circuit Current
Undervoltage-Lockout Fault Threshold
CONDITIONS
LDO = GND, BYP = GND
Rising edge of PVCC
Falling edge of PVCC
(Note 4)
3.9
TYP
200
4.35
4.05
(Note 4)
400
4.5
UNITS
mA
V
V
LDO 5V Bootstrap Switch Threshold to BYP Rising edge at BYP regulation point
4.53
4.68
4.83
V
LDOREFIN = GND
LDO 3.3V Bootstrap Switch Threshold to
Rising edge at BYP regulation point
3.0
3.1
3.2
V
BYP
LDOREFIN = VCC
LDO 5V Bootstrap Switch Equivalent
LDO to BYP, BYP = 5V, LDOREFIN > (VCC - 1V) (Note 3)
0.7
1.5
Ω
Resistance
LDO 3.3V Bootstrap Switch Equivalent
LDO to BYP, BYP = 3.3V, LDOREFIN < 0.3V (Note 3)
1.5
3.0
Ω
Resistance
REF Output Voltage
No external load
1.980
2.000
2.020
V
REF Load Regulation
REF Sink Current
0 < I LOAD < 50μA
REF in regulation
10
10
mV
μA
VIN Operating Supply Current
Both SMPSs on, FB1 = SKIP = GND, REFIN2 = VCC
25
50
μA
V OUT1 = BYP = 5.3V, V OUT2 = 3.5V
VIN Standby Supply Current
VIN Shutdown Supply Current
Quiescent Power Consumption
V IN = 5.5V to 25V, both SMPSs off, EN_LDO = VCC
V IN = 4.5V to 25V, EN1 = EN2 = EN_LDO = 0V
Both SMPSs on, FB1 = SKIP = GND, REFIN2 = VCC,
180
20
5
250
30
7
μA
μA
mW
V OUT1 = BYP = 5.3V, V OUT2 = 3.5V
FAULT DETECTION
Overvoltage Trip Threshold
Overvoltage Fault Propagation Delay
POK_ Threshold
FB1 with respect to nominal regulation point
REFIN2 with respect to nominal regulation point
FB1 or REFIN2 delay with 50mV overdrive
FB1 or REFIN2 with respect to nominal output, falling
+8
+12
-12
+11
+16
10
-9
+14
+20
-6
%
%
μs
%
edge, typical hysteresis = 1%
POK_ Propagation Delay
POK_ Output Low Voltage
POK_ Leakage Current
Thermal-Shutdown Threshold
Falling edge, 50mV overdrive
I SINK = 4mA
High state, forced to 5.5V
10
+150
0.2
1
μs
V
μA
°C
Output Undervoltage Shutdown Threshold
Output Undervoltage Shutdown Blanking
FB1 or REFIN2 with respect to nominal output voltage
From EN_ signal
65
10
70
20
75
30
%
ms
Time
INPUTS AND OUTPUTS
FB1 Input Voltage
Low level
High level
VCC - 1.0
0.3
V
V
REFIN2 Input Voltage
LDOREFIN Input Voltage
OUT2 Dynamic Range, V OUT2 = V REFIN2
Fixed OUT2 = 1.05V
Fixed OUT2 = 3.3V
Fixed LDO = 5V
LDO Dynamic Range, V LDO = 2 x V LDOREFIN
Fixed LDO = 3.3V
0.5
3.0
VCC - 1.0
0.35
VCC - 1.0
2.50
VCC - 1.1
0.30
2.25
V
V
V
V
V
V
5
FN6418.4
March 18, 2008
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