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12V PWM Controller with Hot-Swap
2  _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
IN to AGND.............................................................-0.3V to +24V
HSENSE, PWM_IN to AGND........................-0.3V to (V
IN
+ 0.3V)
GATE to AGND.......................................................-0.3V to +30V
GATE to PWM_IN ....................................................-0.3V to +6V
PWREN, PWRFLT, MPWRGD, HUVLO, PGI, DCENO
to AGND ................................................................-0.3V to +6V
BST to AGND..........................................................-0.3V to +30V
BST to LX..................................................................-0.3V to +6V
CS- to AGND.......................................-0.3V to (V
PWM_IN
+ 0.3V)
REG, DREG, PUVLO, DCENI, SYNCIN, THRESH,
SENSE to AGND....................................................-0.3V to +6V
RT, ILIM, STARTUP, PGOOD, FB, CS+ to AGND ....-0.3V to +6V
SYNCOUT, COMP to AGND.....................-0.3V to (V
REG
+ 0.3V)
DL to PGND...............................................-0.3V to (V
DREG
+ 6V)
DH to LX....................................................-0.3V to (V
BST
+ 0.3V)
PGND to AGND.....................................................-0.3V to +0.3V
Input Current (any pin) .....................................................?0mA
Continuous Power Dissipation
32-Pin TQFN (derate 34.5 mW/癈 above +70癈) ...2758.6mW
32-Pin TQFN (?/DIV>
JA
) ......................................................+29癈/W
32-Pin TQFN (?/DIV>
JC
)........................................................2.1癈/W
Operating Ambient Temperature Range.............-40癈 to +85癈
Maximum Junction Temperature .....................................+150癈
Storage Temperature Range.............................-60癈 to +150癈
Lead Temperature (soldering, 10s) ...&&&&&&&&.+300癈
ELECTRICAL CHARACTERISTICS
(V
IN
= V
PWM_IN
= 12V or V
IN
= V
PWM_IN
= V
REG
= 5V, V
DREG
= V
REG
, V
PGND
= 0V, V
SYNCIN
= 0V, R
RT
= 100k&, R
ILIM
= 60k&,
C
REG
= 2.2礔, T
A
= T
J
= -40癈 to +85癈, unless otherwise noted. Typical values are at T
A
= T
J
= +25癈.) (Note 1)
PARAMETER
YMB  L
CONDITIONS
MIN
TYP
MAX
NIT
8
16
Input-Voltage Range
V
IN
V
IN
= V
PWM_IN
= V
REG
= V
DREG
(Note 2)
4.5
5.5
V
Standby Supply Current
V
IN
 = 16V, V
PWM_IN
 = V
HUVLO
 = 0V
1.0
1.6
mA
Quiescent Supply Current
V
IN
 = V
PWM_IN
 = 16V, V
FB
 = 0.9V
2.3
3.7
mA
Switching Supply Current
V
IN
 = V
PWM_IN
 = 16V, V
FB
 = 0V
6
9
mA
HOT-SWAP UVLO
Default Hot-Swap Undervoltage
Lockout Threshold
V
IN
 rising
6.7
7.3
V
Hot-Swap UVLO Hysteresis
0.7
V
HUVLO Threshold
V
HUVLO
V
HUVLO
 rising
1.202
1.220
1.238
V
HUVLO Hysteresis
122
mV
HUVLO Input Impedance
180
310
500
k&
HOT-SWAP PWREN CONTROL
PWREN In
Hi  h-L  v  l V  l
2
V
PWREN In
L  w-L  v  l V  l
0.8
V
PWREN Input Hysteresis
260
mV
PWREN In
P  ll    R   i    n
50
100
160
k&
PWREN Clamp Voltage
I
PWREN
 = 1mA
4.8
V
P
W RE N Hi  h-  -L w D   li  h Tim
6.5
10.5
15.0
ms
HOT-SWAP CIRCUIT-BREAKER COMPARATOR
Circuit-Breaker Threshold
V
CB
V
IN
 - V
HSENSE
553
613
673
mV
HSENSE Input Bias Current
V
HSENSE
 = 12V
-1
+1
礎
HOT-SWAP GATE CONTROL
GATE Charge Current
I
GATE
4
5
6
礎
GATE High Voltage
V
ATE
 - V
PWM IN
, sourcing 1礎
4.7
5.4
6.1
V
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