ISL6235 Datasheet, PDF (5/14 Pages) Intersil Corporation – Advanced Triple PWM Only Mode and Dual Linear Power Controller for Portable Applications

ISL6235
Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted. Refer to Block and Simplified Power System
Diagrams, and Typical Application Schematic (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
Internal Resistance to GND on VSNS2 Pin
R_VSNS2
PWM1 and PWM2 CONTROLLER GATE DRIVERS
-
66K
-
Ω
Upper Drive Pull-Up Resistance
Upper Drive Pull-Down Resistance
Lower Drive Pull-Up Resistance
Lower Drive Pull-Down Resistance
PWM 3 CONVERTER
R_2UGPUP
R_2UGPDN
R_2LGPUP
R_2LGPDN
-
5
12
Ω
-
4
10
Ω
-
6
9
Ω
-
5
8
Ω
12V Feedback Regulation Voltage
VSEN3
- 2.472 -
V
12V Feedback Regulation Voltage Input
Current
I_VSEN3
-
0.1 1.0
µA
Line and Load Regulation
0.0 < IVOUT3 < 120mA, 4.9V < 5VMain < 5.1V -2
-
+2
%
Undervoltage Shut-Down Level
Overvoltage Threshold
PWM3 Oscillator Frequency
Maximum Duty Cycle
V_UV3
2µs Delay, % Feedback Voltage at VSNS3 Pin 70
75
80
%
V_OVP3 2µs Delay, % Feedback Voltage at VSNS3 Pin -
115 120
%
F_c3
85 100 115
kHz
-
33
-
%
PWM 3 CONTROLLER GATE DRIVERS
Pull-Up Resistance
R3GPUP
-
8
12
Ω
Pull-Down Resistance
R3GPDN
-
8
12
Ω
5V AND 3.3V ALWAYS
Linear Regulator Accuracy
PWM1, 5V Output OFF (SDWN1 = 0V);
5.6V < VBATT < 22V; 0 < Iload < 50mA
-2.0 0.5 +2.0
%
5V ALWAYS Output Voltage Regulation
PWM1, 5V output ON (SDWN1 = 5V);
0 < Iload < 50mA
-3.3 1.0 +2.0
%
Maximum Output Current
Combined 5V ALWAYS and 3.3V ALWAYS
50
-
-
mA
Current Limit
Combined 5V ALWAYS and 3.3V ALWAYS
100 180
-
mA
5V ALWAYS Undervoltage Shut-Down
-
75
-
%
Bypass Switch r_DS(ON)
POWER GOOD AND CONTROL FUNCTIONS
PWM1, 5V output ON (SDWN1 = 5V)
-
1.3
-
Ω
Power Good Threshold for PWM1 and
PWM2 Output Voltages
-14 -12 -10
%
PGOOD Leakage Current
PGOOD Voltage Low
PGOOD Minimum Pulse Width
SDWN1, 2- Low (Off)
I_PGLKG
V_PGOOD
T_PGmin
VPULLUP = 5.0V
IPGOOD = -4mA
-
-
1.0
µA
-
0.2 0.5
V
-
10
-
µs
-
0.8
-
V
SDWN1, 2, - High (On)
-
4.3
-
V
SDWNALL - High (On)
-
2.4
-
V
SDWNALL - Low (Off)
Over-Temperature Shutdown
Over-Temperature Hysteresis
SDWNALL
-
40
-
mV
-
150
-
o_C
-
25
-
o_C
5