MAX5974CETE+ Maxim Integrated Products, MAX5974CETE+ Datasheet - Page 10

• Manufacturer Part Number: MAX5974CETE+
• Description: Current Mode PWM Controllers ACTIVE-CLAMPED CUR MODE PWM CONTLR
• Manufacturer: Maxim Integrated Products

Specifications of MAX5974CETE+

• Duty Cycle (max): 82 %
• Mounting Style: SMD/SMT
• Switching Frequency: 600 KHz
• Operating Supply Voltage: 12 V to 21 V
• Supply Current: 1.8 mA
• Maximum Operating Temperature: + 85 C
• Fall Time: 14 ns
• Minimum Operating Temperature: - 40 C
• Rise Time: 27 ns
• Package / Case: TQFN-16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Active-Clamped, Spread-Spectrum,
Current-Mode PWM Controllers
(V
V
10
GND
IN
AUXDRV 10% TO 90% RISE TIME
= 12V (for MAX5974A/MAX5974C, bring V
, V
V
0ns
DCLMP
EN
= 2V, NDRV = AUXDRV = SS = COMP = unconnected, R
RAMP RESPONSE
10µs/div
10ns/div
45.6ns
MAX5974A/B/C/D toc35
MAX5974A/B/C/D toc38
PEAK AUXDRV CURRENT
PEAK SINK CURRENT
400ns/div
V
2V/div
V
10V/div
V
10V/div
V
2V/div
DCLMP
NDRV
AUXDRV
AUXDRV
PEAK SOURCE
CURRENT
MAX5974A/B/C/D toc41
IN
Typical Operating Characteristics (continued)
AUXDRV 90% TO 10% FALL TIME
NDRV 10% TO 90% RISE TIME
up to 21V for startup), V
I
0.2A/div
AUXDRV
0ns
0ns
10ns/div
10ns/div
21ns
RT
MAX5974A/B/C/D toc36
MAX5974A/B/C/D toc39
27.6ns
= 34.8kI, R
CS
= V
SHORT-CIRCUIT BEHAVIOR
V
2V/div
V
2V/div
CSSC
NDRV
AUXDRV
DT
= 25kI, unless otherwise noted. )
= V
40ms/div
DITHER/SYNC
NDRV 90% TO 10% FALL TIME
MAX5974A/B/C/D toc42
PEAK NDRV CURRENT
PEAK SINK CURRENT
0ns
200ns/div
10ns/div
= V
PEAK SOURCE CURRENT
FB
V
V
I
LX
13.8ns
IN
NDRV
= V
MAX5974A/B/C/D toc37
MAX5974A/B/C/D toc40
FFB
= V
DCLMP
V
2V/div
I
0.5A/div
NDRV
NDRV
=