参数资料
| 型号： | ISL97651ARTZ-T |
| 厂商： | Intersil |
| 文件页数： | 3/19页 |
| 文件大小： | 0K |
| 描述： | IC LCD SUPPLY HP 4CHN 36-TQFN |
| 标准包装： | 4,000 |
| 应用： | LCD 电视机/监控器 |
| 电流 - 电源： | 400µA |
| 电源电压： | 4 V ~ 5.5 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 36-WFQFN 裸露焊盘 |
| 供应商设备封装： | 36-TQFN 裸露焊盘（6x6） |
| 包装： | 带卷 (TR) |
ISL97651
Electrical Specifications
V IN = 5V, V BOOST = V SUP = 15V, V ON = 25V, V OFF = -8V, over-temperature from -40°C to +105°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
EFF BOOST
DESCRIPTION
Peak Efficiency
CONDITIONS
See graphs and component
MIN
TYP
90
MAX
UNIT
%
recommendations
r DS(ON)
Switch ON-Resistance
70
100
m Ω
Δ V BOOST / Δ V IN
Δ V BOOST / Δ I OUT
Line Regulation
Load Regulation
PI mode, R1 = 10k and C3 = 4.7nF over a
load range of 0mA to 300mA (tested),
0-I LIMIT_ONSET (by design)
0.4
0.1
1.5
0.5
%/V
%
V FBB
Boost Feedback Voltage
T A = +25°C
1.192
1.205
1.218
V
1.188
1.205
1.222
V
ACC BOOST
t SS
A VDD Output Accuracy
Soft-start Period for A VDD
T A = +25°C
C DEL = 220nF
-1.5
9.6
+1.5
%
ms
V LOGIC BUCK
D MAX _buck typical maximum duty cycle = 0.85*(V INL -I LOAD *0.3) I LOAD _min, Minimum 1mA for V INL -V BUCK >1.5V, 5mA otherwise
V BUCK
Buck Output Voltage
Output current = 0.5A
V REF
4
V
I LXL
I BUCK
EFF BUCK
LX Leakage Current
Buck Switch Current
Peak Efficiency
LX = 0V and 18V
Current limit
See graphs and component
-10
2.0
.01
2.7
92
10
μA
A
%
recommendations
R DS-ONBK
Switch ON-Resistance
200
455
m Ω
Δ V BUCK / Δ V IN
Δ V BUCK / Δ I OUT
Line Regulation
Load Regulation
PI mode, R1 = 2k and C3 = 4.7nF over a
load range of 0mA to 300mA (tested),
0-I LIMIT_ONSET (by design)
0.1
0.04
1
0.5
%/V
%
V FBL
ACC LOGIC
t SS(L)
FBL Regulation Voltage
V LOGIC Output Accuracy
Soft-Start Period for V(Logic)
I DRVL = 1mA, T A = +25°C
I DRVL = 1mA
T A = +25°C
C(VREF) = 220nF (Note - no soft-start if EN
1.176
1.174
-2
1.2
1.2
0.5
1.224
1.226
+2
V
V
%
ms
asserted HIGH before ENB)
NEGATIVE (V OFF ) CHARGE PUMP
V OFF
V OFF Output Voltage Range
2X Charge Pump
-V SUP +1.4V
0
V
I LOAD_NCP_MIN
r ON(NOUT)H
External Load Driving Capability
High-Side Driver ON-Resistance at
V SUP > 5V
I (NOUT) = +60mA
30
10
mA
Ω
N OUT
r ON(NOUT)L
Low-Side Driver ON-Resistance at
I (NOUT) = -60mA
5
Ω
N OUT
I PU(NOUT)LIM
Pull-up Current Limit in N OUT
V (NOUT) = 0V to V(SUP) - 0.5V
60
270
mA
I PD(NOUT)LIM
I (NOUT)LEAK
Pull-down Current Limit in N OUT
Leakage Current in N OUT
V (NOUT) = 0.36V to V(VSUP)
V (FBN) < 0 or EN = LOW
-2
-200
-60
2
mA
μA
V FBN
ACCN
FBN Regulation Voltage
V OFF Output Accuracy
I DRVN = 0.2mA, T A = +25°C
I DRVN = 0.2mA
I OFF = 1mA, T A = +25°C
0.173
0.171
-3
0.203
0.203
0.233
0.235
+3
V
V
%
D_NCP_max
Max Duty Cycle of the Negative
50
%
Charge Pump
r PD(FBN)OFF
Pull-Down Resistance, Not Active
I (FBN) = 500μA
2
3
4
k Ω
3
FN7493.3
April 24, 2009
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