SP6134 Datasheet, PDF (3/14 Pages) Sipex Corporation – Dual Supply Synchronous Buck Controller

ELECTRICAL SPECIFICATIONS: Continued
Unless otherwise specified: 0°C < T_AMB < 70°C, 4.5V < V_CC < 5.5V, BST=V_CC,SWN = GND = 0V, UVIN = 3.0V, CV_CC = 10µF,
C_COMP = 0.1µF, CGH = CGL = 3.3nF, C_SS = 50nF, Typical measured at V_CC=5V. The ♦ denotes the specifications which
apply over the full operating temperature range, unless otherwise specified.
PARAMETER
MIN TYP
TIMERS: SOFTSTART
SS Charge Current:
10
SS Discharge Current:
1
PROTECTION: SHORT CIRCUIT & THERMAL
Short Circuit Threshold Voltage
0.2 0.25
Hiccup Timeout
100
Number of Allowable Clock Cycles
20
at 100% Duty Cycle
Minimum GL Pulse After 20 Cycles
0.5
Thermal Shutdown Temperature
145
Thermal Recovery Temperature
135
Thermal Hysteresis
10
OUTPUT: NFET GATE DRIVERS
GH & GL Rise Times
35
GH & GL Fall Times
30
GL to GH Non Overlap Time
45
SWN to GL Non Overlap Time
20
GH & GL Pull Down Resistance
50
Driver Pull Down Resistance
1.5
Driver Pull Up Resistance
2.5
MAX UNITS ♦ CONDITIONS
µA
mA ♦ Fault Present, SS = 0.2V
0.3
V
♦ Measured V_REF (0.8V) - V_FB
ms
V_FB = 0V
Cycles
V_FB = 0.7V
Cycles
°C
°C
°C
V_FB = 0.7V
50
ns ♦ Measured 10% to 90%
40
ns ♦ Measured 90% to 10%
70
ns ♦ GH & GL Measured at 2.0V
30
ns ♦ Measured SWN = 100mV to GL = 2.0V
KΩ
Resistor Pull-Down
1.9
Ω
♦ Note 1
3.0
Ω
♦ Note 1
Note 1: Gauranteed by design, not 100% tested.
Date: 5/25/04
SP6134 Dual Supply, Synchronous Buck Controller
3
© Copyright 2004 Sipex Corporation