MAX1907A 데이터 시트보기 (PDF) - Maxim Integrated
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MAX1907A
Maxim Integrated
MAX1907A Datasheet PDF : 43 Pages
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Quick-PWM Master Controllers for Voltage-
Positioned CPU Core Power Supplies (IMVP-IV)
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = 15V, VCC = VDD = VSHDN = VTON = VDPSLP = VBI = VOAIN- = 5V, VFB = VCSP = VCSN = VOAIN+ = VNEG = VPOS
= 1.26V, ILIM = VCC, SUS = D5 = D1= D0 = SO = S1 = S2 = B0 = GND, VD4 = VD3 = VD2 = 1V, VB2 = 2V. TA = -40°C to +100°C, unless
otherwise specified.)
PARAMETER
Reference Voltage
FAULT PROTECTION
Output Overvoltage Protection
Threshold
SYMBOL
CONDITIONS
VREF VCC = 4.5V to 5.5V, IREF = 0
Measured at FB with respect to unloaded
output voltage
MIN
1.985
TYP
MAX UNITS
2.015
V
13
19
%
Output Undervoltage Protection
Threshold
With respect to unloaded output voltage
67
73
%
IMVPOK, CLKEN Threshold
SYSPOK = VCC;
lower threshold
measured at FB with (undervoltage)
-12
respect to unloaded upper threshold
output voltage
(overvoltage)
+8
-8
%
+12
%
CLKEN Delay
tCLKEN
FB in regulation, measured from the rising
edge of SYSPOK
30
µs
IMVPOK Delay
tIMVPOK
FB in regulation, measured from the falling
edge of CLKEN
3
ms
VCC Undervoltage
Lockout Threshold
VUVLO(VCC)
Rising edge, hysteresis = 20mV, PWM
disabled below this level
3.95
CURRENT LIMIT
Current-Limit Threshold Voltage
(Positive, Default)
CSP - CSN, ILIM = VCC
45
Current-Limit Threshold Voltage
(Positive, Adjustable)
CSP - CSN
VILIM = 0.3V
25
VILIM = 2V (REF)
95
Current-Limit Threshold Voltage
(Negative)
CSP - CSN; ILIM = VCC, SUS = GND and
DPSLP = VCC
-70
GATE DRIVERS
DH Gate-Driver On-Resistance
DL Gate-Driver On-Resistance
RON(DH)
RON(DL)
BST - LX forced to 5V
High state (pullup)
Low state (pulldown)
VOLTAGE-POSITIONING AMPLIFIER
Input Offset Voltage
Output Voltage Swing
VOS
VCM = 0
-2
|VOAIN+ - VOAIN-| ≤ 10mV,
RL = 1kΩ to VCC/2
VCC - VOH
VOL
4.45
V
55
mV
35
mV
105
-56
mV
4.5
Ω
4.5
Ω
2.0
+2
mV
300
mV
200
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