MAX1981A Maxim Integrated Products, MAX1981A Datasheet - Page 7

• Manufacturer Part Number: MAX1981A
• Description: (MAX1907A / MAX1981A) Quick-PWM Master Controllers
• Manufacturer: Maxim Integrated Products

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ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, V
= 1.26V, ILIM = V
otherwise specified.)
Reference Voltage
FAULT PROTECTION
Output Overvoltage Protection
Threshold
Output Undervoltage Protection
Threshold
IMVPOK, CLKEN Threshold
CLKEN Delay
IMVPOK Delay
V CC Undervoltage
Lockout Threshold
CURRENT LIMIT
Current-Limit Threshold Voltage
(Positive, Default)
Current-Limit Threshold Voltage
(Positive, Adjustable)
Current-Limit Threshold Voltage
(Negative)
GATE DRIVERS
DH Gate-Driver On-Resistance
DL Gate-Driver On-Resistance
VOLTAGE-POSITIONING AMPLIFIER
Input Offset Voltage
Output Voltage Swing
Positioned CPU Core Power Supplies (IMVP-IV)
PARAMETER
Quick-PWM Master Controllers for Voltage-
CC
, SUS = D5 = D1= D0 = SO = S1 = S2 = B0 = GND, V
_______________________________________________________________________________________
CC
= V
V
SYMBOL
DD
UVLO(VCC)
R
R
t
t
IMVPOK
CLKEN
ON(DH)
V
ON(DL)
V
= V
REF
OS
SHDN
V
Measured at FB with respect to unloaded
output voltage
With respect to unloaded output voltage
SYSPOK = V
measured at FB with
respect to unloaded
output voltage
FB in regulation, measured from the rising
edge of SYSPOK
FB in regulation, measured from the falling
edge of CLKEN
Rising edge, hysteresis = 20mV, PWM
disabled below this level
CSP - CSN, ILIM = V
CSP - CSN
CSP - CSN; ILIM = V
DPSLP = V
BST - LX forced to 5V
High state (pullup)
Low state (pulldown)
V
|
R
= V
V
CC
CM
L
OAIN+
= 1kΩ to V
TON
= 4.5V to 5.5V, I
= 0
= V
- V
CC
OAIN-
DPSLP
CC
CC
CONDITIONS
;
/2
|
≤ 10mV,
= V
REF
CC
CC
BI
D4
lower threshold
(undervoltage)
upper threshold
(overvoltage)
V
V
, SUS = GND and
= V
ILIM
ILIM
= 0
= V
OAIN
= 0.3V
= 2V (REF)
D3
V
V
- = 5V, V
CC
OL
= V
- V
D2
OH
= 1V, V
FB
= V
B2
CSP
1.985
3.95
MIN
-12
-70
+8
13
67
30
45
25
95
= 2V. T
-2
3
= V
CSN
A
TYP
= -40°C to +100°C, unless
= V
OAIN+
2.015
MAX
+12
4.45
105
300
200
-56
4.5
4.5
2.0
+2
19
73
55
35
-8
= V
NEG
UNITS
= V
ms
mV
mV
mV
mV
mV
µs
%
%
%
%
Ω
Ω
V
V
POS
7