MAX17499 Maxim Integrated Products, MAX17499 Datasheet - Page 3

• Manufacturer Part Number: MAX17499
• Description: (MAX17499 / MAX17500) Current-Mode PWM Controllers
• Manufacturer: Maxim Integrated Products

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ELECTRICAL CHARACTERISTICS (continued)
(V
MAX17500A), R12 = 7.5kΩ (MAX17499B/MAX17500B), R15 = 1kΩ, C6 = 100nF (see the Typical Application Circuit ), NDRV = open,
V
+25°C.) (Note 1)
GATE DRIVER
Driver Output Impedance
Driver Peak Sink Current
Driver Peak Source Current
PWM COMPARATOR
Comparator Offset Voltage
CS Input Bias Current
Comparator Propagation Delay
CURRENT-LIMIT COMPARATOR
Current-Limit Trip Threshold
CS Input Bias Current
Propagation Delay from
Comparator Input to NDRV
IN CLAMP VOLTAGE
IN Clamp Voltage
ERROR AMPLIFIER
Voltage Gain
Unity-Gain Bandwidth
Phase Margin
FB Input Offset Voltage
COMP High Voltage
COMP Low Voltage
Source Current
Sink Current
Reference Voltage
Reference Voltage Accuracy
FB Input Bias Current
COMP Short-Circuit Current
DIGITAL SOFT-START
Soft-Start Duration
Reference Voltage Steps During
Soft-Start
Reference Voltage Step
UVLO/EN
IN
= +12V (for MAX17500, bring V
= +1.4V, V
PARAMETER
FB
_______________________________________________________________________________________
= +1.0V, COMP = open, V
Programmable Switching Frequency
Current-Mode PWM Controllers with
IN
R
R
SYMBOL
ON(HIGH)
ON(LOW)
V
t
up to 23.6V for startup), 10nF bypass capacitors at IN and V
t
V
PDCS
V
PWM
V
PWM
I
I
t
REF
CS
CS
INC
SS
CS
Measured at NDRV sinking 100mA
Measured at NDRV sourcing 20mA
V
V
Change in V
V
100mV overdrive
2mA sink current (Note 2)
R
R
R
I
I
(Note 3)
f
COMP
COMP
SW
CS
COMP
CS
CS
LOAD
LOAD
LOAD
= 0V, T
= 350kHz
= 0V
= 0V
= 0A
= 0A
= 100kΩ
= 100kΩ, C
= 100kΩ, C
- V
CS
A
CS
CONDITIONS
= -40°C to +125°C, unless otherwise noted. Typical values are at T
= 0.1V
LOAD
LOAD
= 200pF
= 200pF
MIN
1.24
24.1
900
-1.5
2.5
0.5
0.5
-50
-4
-4
CC
1.230
39.67
, R12 = 15kΩ (MAX17499A/
1000
1984
TYP
0.65
1.38
26.1
5.6
80
±1
31
60
60
65
2
4
1
2
8
MAX
1100
1.54
29.0
+1.5
+50
1.1
+4
+4
10
4
D eg r ees
UNITS
cycles
NDRV
Steps
MHz
mV
mV
mA
mA
mA
mV
ms
μA
μA
dB
nA
ns
ns
%
Ω
A
A
V
V
V
V
V
A
3
=
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