ADP1882 Analog Devices, ADP1882 Datasheet - Page 4

• Manufacturer Part Number: ADP1882
• Description: Synchronous Current-Mode Buck Controller with Constant On-time and 0.8 V Reference Voltage
• Manufacturer: Analog Devices

ADP1882/ADP1883
Parameter
OUTPUT DRIVER CHARACTERISTICS
PRECISION ENABLE THRESHOLD
COMP VOLTAGE
THERMAL SHUTDOWN
1
2
The maximum specified values are with the closed loop measured at 10% to 90% time points (see
MOSFETs specified as Infineon BSC042N030MSG.
Not automatic test equipment (ATE) tested.
High-Side Driver
Low-Side Driver
Propagation Delays
SW Leakage Current
Integrated Rectifier
Logic High Level
Enable Hysteresis
COMP Clamp Low Voltage
COMP Clamp High Voltage
COMP Zero Current Threshold
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
Hiccup Current Limit Timing
Output Source Resistance
Output Sink Resistance
Rise Time
Fall Time
Output Source Resistance
Output Sink Resistance
Rise Time
Fall Time
DRVL Fall to DRVH Rise
DRVH Fall to DRVL Rise
Channel Impedance
2
2
2
2
2
2
Symbol
t
t
t
t
t
t
I
V
V
V
T
SW, LEAK
R, DRVH
F, DRVH
R, DRVL
F, DRVL
TPDH, DRVH
TPDH, DRVL
TMSD
COMP(LOW)
COMP(HIGH)
COMP_ZCT
Conditions
I
I
BST − SW = 4.4 V, C
BST − SW = 4.4 V, C
I
I
V
V
BST − SW = 4.4 V (see Figure 60)
BST − SW = 4.4 V (see Figure 61)
BST = 25 V, SW = 20 V, VDD = 5.5 V
I
V
V
From disable state, release COMP/EN pin to enable
device; 2.75 V ≤ V
2.75 V ≤ V
2.75 V ≤ V
Rising temperature
SOURCE
SINK
SOURCE
SINK
SINK
DD
DD
IN
IN
= 2.75 V to 20 V, V
= 2.75 V to 20 V, V
= 5.0 V, C
= 5.0 V, C
= 1.5 A, 100 ns, negative pulse (5 V to 0 V)
= 1.5 A, 100 ns, negative pulse (5 V to 0 V)
= 10 mA
= 1.5 A, 100 ns, positive pulse (0 V to 5 V)
= 1.5 A, 100 ns, positive pulse (0 V to 5 V)
Rev. 0 | Page 4 of 40
DD
DD
≤ 5.5 V
≤ 5.5 V
IN
IN
= 4.3 nF (see Figure 61)
= 4.3 nF (see Figure 60)
DD
IN
IN
≤ 5.5 V
= 4.3 nF (see Figure 60)
= 4.3 nF (see Figure 61)
DD
DD
= 2.75 V to 5.5 V
= 2.75 V to 5.5 V
Figure 60
and
Figure 61)
, C
GATE
= 4.3 nF, and the upper-side and lower-si
Min
235
0.47
Typ
2
0.8
25
11
1.7
0.75
18
16
22
24
22
285
35
0.95
155
15
6
Max
3.5
2
3
2
110
330
2.55
Unit
Ω
Ω
ns
ns
Ω
Ω
ns
ns
ns
ns
μA
Ω
mV
mV
V
V
V
°C
°C
ms
de