参数资料
型号: ISL6442IAZ-TK
厂商: Intersil
文件页数: 5/16页
文件大小: 0K
描述: IC REG TRPL BCK/LINEAR 24QSOP
标准包装: 1
拓扑: 降压(降压)同步(2),线性(LDO)(1)
功能: 任何功能
输出数: 3
频率 - 开关: 300kHz ~ 2.55MHz
电压/电流 - 输出 1: 控制器
电压/电流 - 输出 2: 控制器
电压/电流 - 输出 3: 控制器
带 LED 驱动器:
带监控器:
带序列发生器:
电源电压: 4.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: *
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
供应商设备封装: *
包装: 标准包装
其它名称: ISL6442IAZ-TKDKR
ISL6442
Electrical Specifications
Operating Conditions Unless Otherwise Noted: VIN = 12V, or V CC = 5V ±10%, T A = -40°C to +85°C. Typical
values are at +25°C. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise
specified. Temperature limits established by characterization and are not production tested. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
PWM CONVERTERS
Minimum UGATE on Time
t UGATE_min (Note 3)
100
ns
Maximum Duty Cycle
Maximum Duty Cycle
FB x Pin Bias Current
DC max
DC max
I FBx
VIN = 4.5 or 12V; F SW = 300kHz
VIN = 4.5V; F SW = 2.5MHz
(Note 3)
95
80
80
%
%
nA
OSCILLATOR
Low End Frequency
High End Frequency
Frequency Adjustment Range
F SW
F SW
F SW
VIN = 5V or 12V; RT = 52.3k Ω
VIN = 24V; RT = 52.3k Ω
VIN = 5V; RT = 5.23k Ω
VIN = 12V; RT = 5.23k Ω
RT = 52.3k Ω ; (Note 3)
270
270
2.25
2.25
300
305
2.5
2.55
0.3
330
340
2.75
2.85
kHz
kHz
MHz
MHz
MHz
RT = 5.23k Ω ; (Note 3)
2.5
MHz
PWM Sawtooth Ramp Amplitude
V P-P
(Note 4)
1.25
V
(Peak-to-Peak)
PWM CONTROLLER GATE DRIVERS
Gate Drive Peak Current
Rise Time
Fall Time
Dead Time Between Drivers
(Note 3)
(Note 3); C L = 1000pF
(Note 3); C L = 1000pF
(Note 3)
0.7
20
20
30
A
ns
ns
ns
ERROR AMPLIFIERS
DC Gain
Gain-Bandwidth Product
Slew Rate
Gain
GBWP
SR
(Note 4)
(Note 4)
(Note 4); COMP = 10pF
88
15
5
dB
MHz
V/μs
Maximum Output Voltage
V EA_max
VCC = 5V; RL = 10k Ω to ground
3.9
4.4
PROTECTION and OUTPUT MONITOR
Overvoltage Threshold
Undervoltage Threshold
OV
UV
113
78
116
82
121
88
%
%
OCSET Current Source
I OCSET
V OCSET = 4.5V
80
110
140
μ A
LINEAR CONTROLLER
Drive Sink Current
LCFB Feedback Threshold
LCFB Input Leakage Current
I LCDR
V LCFB
I LCFB
LCDR
T A = +25°C
T A = -40°C to +85°C
T A = 0°C to +70°C
(Note 3)
50
0.570
0.580
0.595
80
0.620
0.610
mA
V
V
V
nA
PGOOD
Power-Good Lower Threshold
PG_low x
LCFB = VCC, LDO disabled
88
91
94
%
PGOOD for Ch1 and Ch2 only
Power-Good Higher Threshold
PG_hi x
LCFB = VCC, LDO disabled
107
110
113
%
PGOOD for Ch1 and Ch2 only
5
FN9204.2
October 31, 2008
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