参数资料
型号: ISL6237IRZ-T
厂商: Intersil
文件页数: 4/35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: 6,000
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: 带卷 (TR)
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
CONDITIONS
(Note 4)
TYP
(Note 4)
UNITS
Current-Limit Threshold
(Positive, Adjustable)
GND - PHASE_
V ILIM_ = 0.5V
V ILIM_ = 1V
V ILIM_ = 2V
40
93
185
50
100
200
60
107
215
mV
mV
mV
Zero-Current Threshold
Current-Limit Threshold (Negative, Default)
Soft-Start Ramp Time
SKIP = GND, REF, or OPEN, GND - PHASE_
SKIP = VCC, GND - PHASE_
Zero to full limit
3
-120
1.7
mV
mV
ms
Operating Frequency
(V tON = GND), SKIP = VCC
(V tON = REF or OPEN),
SKIP = VCC
(V tON = VCC), SKIP = VCC
SMPS 1
SMPS 2
SMPS 1
SMPS 2
SMPS 1
SMPS 2
400
500
400
300
200
300
kHz
kHz
kHz
kHz
kHz
kHz
On-Time Pulse Width
Minimum Off-Time
Maximum Duty Cycle
V tON = GND (400kHz/500kHz)
V tON = REF or OPEN
(400kHz/300kHz)
V tON = VCC (200kHz/300kHz)
T A = -40°C to +100°C
T A = -40°C to +85°C
V tON = GND
V OUT1 = 5.00V
V OUT2 = 3.33V
V OUT1 = 5.05V
V OUT2 = 3.33V
V OUT1 = 5.05V
V OUT2 = 3.33V
V OUT1 = 5.05V
0.895
0.475
0.895
0.833
1.895
0.833
200
200
1.052
0.555
1.052
0.925
2.105
0.925
300
300
88
1.209
0.635
1.209
1.017
2.315
1.017
425
410
μs
μs
μs
μs
μs
μs
ns
ns
%
V OUT2 = 3.33V
85
%
V tON = REF or OPEN
V tON = VCC
V OUT1 = 5.05V
V OUT2 = 3.33V
V OUT1 = 5.05V
V OUT2 = 3.33V
88
91
94
91
%
%
%
%
Ultrasonic SKIP Operating Frequency
SKIP = REF or OPEN
25
37
kHz
INTERNAL REGULATOR AND REFERENCE
LDO Output Voltage
BYP = GND, 5.5V < V IN < 25V, LDOREFIN < 0.3V,
4.925
5.000
5.075
V
0 < ILDO < 100mA
LDO Output Voltage
BYP = GND, 5.5V < V IN < 25V, LDOREFIN > (VCC - 1V),
3.250
3.300
3.350
V
0 < ILDO < 100mA
LDO Output in Adjustable Mode
LDO Output Accuracy in Adjustable Mode
LDOREFIN Input Range
LDO Output Current
LDO Output Current During Switchover
LDO Output Current During Switchover to
V IN = 5.5V to 25V, V LDO = 2 x V LDOREFIN
V IN = 5.5V to 25V, V LDOREFIN = 0.35V to 0.5V
V IN = 5.5V to 25V, V LDOREFIN = 0.5V to 2.25V
V LDO = 2 x V LDOREFIN
BYP = GND, V IN = 5.5V to 25V (Note 3)
BYP = 5V, V IN = 5.5V to 25V, LDOREFIN < 0.3V
BYP = 3.3V, V IN = 5.5V to 25V, LDOREFIN > (VCC - 1V)
0.7
0.35
4.5
±2.5
±1.5
2.25
100
200
100
V
%
%
V
mA
mA
mA
3.3V
4
FN6418.4
March 18, 2008
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