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ZL2005PALRFT

Part # ZL2005PALRFT
Description IC REG CNTRLR BUCK PWM 36-QFN
Category IC
Availability In Stock
Qty 200
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169 + $2.68765
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Zilker Labs
Date Code: 1010
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Zilker Labs
Date Code: 1010
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Zilker Labs
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

Table 2. Recommended Operating Conditions and Thermal Information
Parameter Symbol Min Typ Max Unit
Input Supply Voltage Range, V
DD
V
R
tied to V
DD
(Figure 9) 3.0 5.5 V
V
R
floating (Figure 9) 4.5 14 V
Output Voltage Range V
OUT
(RDSON sensing) 0.54 5.5 V
Output Voltage Range V
OUT
(DCR sensing) 0.6 3.6
3
V
Operating Junction Temperature Range T
J
-40 125 °C
Junction to Ambient Thermal
Impedan
ce
1
Θ
JA
35 °C/W
Junction to Case Thermal Impedance
2
Θ
JC
5 °C/W
NOTES:
2. For Θ
JC
, the “case” temperature is measured at the center of the exposed metal pad.
3. With margin
4
FN6849.3
December 16, 2011
1. Θ
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech Brief
TB379
.
Table 3. Electrical Specifications
Unless otherwise specified V
DD
= 12 V, T
A
= -40
o
C to +85
o
C. Typical values are at
T
A
= 25
o
C. Boldface limits apply over the operating temperature range, -40°C to +85°C.
Parameter Condition Min
(Not
e 6)
Typ Max
(Note 6)
Unit
Input and Supply Characteristics
Supply current (I
DD
)
(No load on GH and GL)
f
SW
= 200 kHz 16 30 mA
f
SW
= 1,000 kHz 25 50 mA
Standby supply current (I
DD
)
EN = Low
no I
2
C/SMBus activity
2 5 mA
VR reference voltage (V
R
)
V
DD
6 V
I
VR
< 50 mA
4.5 5.2 5.5 V
V25 reference voltage (V
25
)
V
R
3 V
I
V25
< 50 mA
2.25 2.5 2.75 V
Output Characteristics
Output voltage adjustment range 0.6 5.5 V
Output voltage setpoint resolution
Set using resistors on V(0,1)
Set using resistor on VADJ
10
Table 8
mV
Set using I
2
C/SMBus
±0.025 % of
F.
S.
1
Output voltage accuracy Over line and load -1 1 %
VSEN input bias current VSEN = 5.5 V 110 200 µA
Current sense differential input voltage
(ground referenced)
V
ISENA
- V
ISENB
-100 100 mV
Current sense differential input voltage
(V
OUT
referenced)
V
ISENA
- V
ISENB
-50 50 mV
Current sense input bias current Ground referenced -100
100 µA
Current sense input bias current
(V
OUT
referenced,
V
OUT
<= 3.6V)
ISENA -1 1 µA
ISENB -100 100 µA
Soft start delay duration range
5
Configurable via I
2
C/SMBus 0.007 500 s
ZL2005P
5
FN6849.3
December 16, 2011
Soft start delay duration accuracy 6 ms
Soft start ramp duration range
5
Configurable via I
2
C/SMBus 0 200 ms
Soft start ramp duration accuracy 100 µs
Logic Input/Output Characteristics
Logic input leakage current Push-pull logic -250 250 nA
Logic input low threshold (V
IL
) 0.8 V
Logic input OPEN (N/C)
Multi-mode logic pins
1.4 V
Logic input high threshold (V
IH
)
2 V
Logic output low (V
OL
)
I
OL
<= 4 mA
0.4 V
Logic output high (V
OH
)
I
OH
>= - 2 mA
2.25 V
Oscillator and Switching Characteristics
Switching frequency range 200 1400 kHz
Switching frequency setpoint
accuracy
Predefined settings
(See Table 13)
-5 5 %
Maximum PWM duty cycle Factory default 95 %
Minimum SYNC pulse width
5
150 ns
Input clock frequency drift tolerance External clock signal -13 13 %
Gate Drivers
High-side driver voltage
(V
BST
- V
SW
)
4.5 V
High-side driver peak gate drive
current (pull down)
5
(V
BST
- V
SW
) = 4.5 V 2 3 A
High-side driver pull-up resistance
5
(V
BST
- V
SW
) = 4.5 V,
(V
BST
- V
GH
) = 50 mV
0.8 2 Ω
High-side driver pull-down
resistance
5
(V
BST
- V
SW
) = 4.5 V,
(V
GH
- V
SW
) = 50 mV
0.5 2 Ω
Low-side driver peak gate drive
current (pull-up)
5
V
R
= 5 V 2.5 A
Low-side driver peak gate drive
current (pull-down)
5
V
R
= 5 V 1.8 A
Low-side driver pull-up resistance
5
V
R
= 5 V,
(V
R
- V
GL
) = 50 mV
1.2 2 Ω
Low-side driver pull-down resistance
5
V
R
= 5 V,
(V
GL
- PGND) = 50 mV
0.5 2 Ω
Switching timing
GH rise and fall time
5
(V
BST
- V
SW
) = 4.5 V,
C
LOAD
= 2.2 nF
5 20 ns
GL rise and fall time
5
V
R
= 5 V,
C
LOAD
= 2.2 nF
5 20 ns
Tracking
VTRK input bias current VTRK = 5.5 V 110 200 µA
Table 3. Electrical Specifications
Unless otherwise specified V
DD
= 12 V, T
A
= -40
o
C to +85
o
C. Typical values are at
T
A
= 25
o
C. Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)
Parameter Condition Min
(Note 6)
Typ Max
(Note 6)
Unit
ZL2005P
6
FN6849.3
December 16, 2011
VTRK tracking threshold
5
VTRK >= 0.3 V – 100 100 mV
Fault Protection Characteristics
UVLO threshold range 2.85 16 V
UVLO setpoint accuracy ZL2005P configuration -3 3 %
UVLO hysteresis Factory default 3 %
Configurable via I
2
C/SMBus 0 100 %
UVLO delay 2.5 µs
Power good V
OUT
low threshold Factory default 90
%
V
OUT
Power good V
OUT
high threshold Factory default 115
%
V
OUT
Power good V
OUT
hysteresis Factory default 5 %
Power good delay range
5
Configurable via I
2
C/SMBus 0 500 s
VSEN undervoltage threshold
Factory default 85
%
V
OUT
Configurable via I
2
C/SMBus
5
0 110
%
V
OUT
VSEN overvoltage threshold
Factory default 115
%
V
OUT
Configurable via I
2
C/SMBus
5
0 115
%
V
OUT
VSEN undervoltage/overvoltage fault
response time
Factory default 16 µs
Configurable via I
2
C/SMBus
5
5 60 µs
Current limit setpoint accuracy
(V
OUT
referenced)
±10 % F.S.
1
Current limit setpoint accuracy
2
(Ground referenced)
|V
ISENA
- V
ISENB
|> 12 mV ±10 % F.S.
Current limit protection delay
Factory default 5
t
SW
3
Configurable via I
2
C/SMBus
5
1 32
Temperature compensation of current
limit protection threshold
Factory default 4400
ppm/°C
Configurable via I
2
C/SMBus
5
100 12700
Thermal protection threshold
Factory default 125 °C
Configurable via I
2
C/SMBus
5
- 40 125 °C
Thermal protection hysteresis 15 °C
NOTES:
1. Percentage of Full Scale (F.S.) with temperature compensation applied.
2. T
A
= 0
o
C to +85
o
C
3. t
SW
= 1/f
SW
, f
SW
switching frequency
4. Automatically set to same value as soft start ramp time.
5. Limits established by characterization and not production tested.
6. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
Table 3. Electrical Specifications
Unless otherwise specified V
DD
= 12 V, T
A
= -40
o
C to +85
o
C. Typical values are at
T
A
= 25
o
C. Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)
Parameter Condition Min
(Note 6)
Typ Max
(Note 6)
Unit
ZL2005P
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