ISL88550AIRZ Intersil, ISL88550AIRZ Datasheet - Page 10

• Manufacturer Part Number: ISL88550AIRZ
• Description: IC PWM CONTROLLER 28TQFN
• Manufacturer: Intersil

Specifications of ISL88550AIRZ

• Applications: PWM Controller
• Voltage - Input: 2 ~ 25 V
• Current - Supply: 25µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN
• Rohs Compliant: YES
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -

Typical Operating Characteristics
FIGURE 15. VDDQ START-UP AND SHUTDOWN INTO LIGHT
FIGURE 17. OVERVOLTAGE AND TURN-OFF OF BUCK
FIGURE 19. SHORT CIRCUIT AND RECOVERY OF VDDQ
UVP ENABLE
R
VDDQ
= 10Ω, R
LOAD, DISCHARGE ENABLED
OUTPUT
VTT
= 20Ω
2ms/DIV
50µs/DIV
50µs/DIV
10
V
unless otherwise noted. (Continued)
UGATE
2V/DIV
VDDQ
500mV/DIV
LGATE
2V/DIV
VTT
500mV/DIV
VDDQ
1V/DIV
I
10A/DIV
V
10V/DIV
I
5A/DIV
VDDQ
1V/DIV
VTT
500mV/DIV
POK1
5V/DIV
SHDNA#
5V/DIV
VDDQ
IN
IN
IN
= 12V, V
ISL88550A
DDQ
= 1.8V, t
I
VTT
UVP DISABLE, FOLDBACK CURRENT LIMIT
FIGURE 18. SHORT CIRCUIT AND RECOVERY OF VDDQ
FIGURE 20. SHORT CIRCUIT AND RECOVERY OF VTT
ON
FIGURE 16. VTT, VTTR START-UP AND SHUTDOWN
= 1.5A, I
= GND, SKIP# = AV
VTTR
= 15mA
200µs/DIV
100µs/DIV
100µs/DIV
DD
, circuit of Figure 29, T
A
= +25°C,
April 23, 2008
POK2
1V/DIV
VTT
500mV/DIV
2A/DIV
VTT
500mV/DIV
VTTR
500mV/DIV
STBY#
5V/DIV
VDDQ
1V/DIV
I
10A/DIV
V
10V/DIV
I
5A/DIV
I
VDDQ
IN
VTT
IN
FN6168.3