参数资料
型号: ZL2008ALBFT
厂商: Intersil
文件页数: 5/42页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 36-QFN
标准包装: 100
PWM 型: 电压模式
输出数: 1
频率 - 最大: 1.4MHz
占空比: 95%
电源电压: 3 V ~ 5.5 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: 36-VFQFN 裸露焊盘
包装: 带卷 (TR)
ZL2008
Electrical Specifications
V DD = 12V, T A = -40°C to +85°C unless otherwise noted. Typical values are at T A = +25°C. Boldface limits apply
over the operating temperature range, -40°C to +85°C. (Continued)
MIN
MAX
PARAMETER
Current Sense Input Bias Current
(V out Referenced, V out < 4.0V)
Soft-start Delay Duration Range
(Note 8)
Soft-start Delay Duration Accuracy
CONDITIONS
ISENA
ISENB
Set using SS pin or resistor
Set using I 2 C/SMBus
Turn-on delay (precise mode)
(Note 14)
-1
-100
2
0.002
-
TYP
±0.25
(Note 14)
1
100
30
500
-
UNIT
μA
μA
ms
s
ms
(Notes 8, 9, 10)
Turn-on delay (normal mode) (Note 10)
Turn-off delay (Note 10)
-
-
-0.25/+4
-0.25/+4
-
-
ms
ms
Soft-start Ramp Duration Range
Set using SS pin or resistor
2
20
ms
Soft-start Ramp Duration Accuracy
Set using
I 2 C
0
100
200
ms
μs
Logic Input/Output Characteristics
Logic Input Leakage Current
Logic Input Low, V IL
Logic Input OPEN (N/C)
Logic Input High, V IH
Logic Output Low, V OL
Logic Output High, V OH
EN, PG, SCL, SDA, SALRT pins
Multi-mode logic pins
I OL ≤ 4mA
I OH ≥ -2mA
-250
2.0
2.25
1.4
250
0.8
0.4
nA
V
V
V
V
V
Oscillator and Switching Characteristics
Switching Frequency Range
200
1400
kHz
Switching Frequency Set-point Accuracy
Maximum Pwm Duty Cycle
Minimum Sync Pulse Width
Input Clock Frequency Drift Tolerance
Predefined settings (See Table 11)
Factory default
External clock source
-5
95
150
-13
5
13
%
%
ns
%
Gate Drivers
High-side driver voltage (V BST -V SW )
4.5
V
High-side Driver Peak Gate Drive
Current (Pull-down)
High-side Driver Pull-up Resistance
High-side Driver Pull-down Resistance
Low-side Driver Peak Gate
Drive Current (Pull-up)
Low-side Driver Peak Gate
Drive Current (Pull-down)
Low-side Driver Pull-up Resistance
Low-side Driver Pull-down Resistance
(V BST -V SW ) = 4.5V
(V BST -V SW ) = 4.5V, (V BST -V GH ) = 50mV
(V BST -V SW ) = 4.5V, (V GH -V SW ) = 50mV
V R = 5V
V R = 5V
V R = 5V, (V R -V GL ) = 50mV
V R = 5V, (V GL -PGND) = 50mV
2
3
0.8
0.5
2.5
1.8
1.2
0.5
2
2
2
2
A
Ω
Ω
A
A
Ω
Ω
Switching Timing
Gh Rise and Fall Time
Gl Rise and Fall Time
(V BST -V SW ) = 4.5V, C LOAD = 2.2nF
V R = 5V, C LOAD = 2.2nF
5
5
20
20
ns
ns
Tracking
VTRK Input Bias Current
VTRK Tracking Ramp Accuracy
VTRK Regulation Accuracy
VTRK = 5.5V
100% Tracking, V OUT -VTRK
100% Tracking, V OUT -VTRK
-100
-1
110
200
+ 100
1
μA
mV
%
5
FN6859.4
April 29, 2011
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