Rainbow Electronics MAX5051 - Manual (Page 5)

MAX5051
Parallelable, Clamped Two-Switch
Power-Supply Controller IC
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ELECTRICAL CHARACTERISTICS (continued)
(AVIN = 12V, PVIN = 12V, V UVLO = V STT = 3V, V CON = 3V, R RCOSC = 24k Ω, C
CSS = 10nF, C RCOSC = 100pF, C REG9 = 4.7µF,
C REG5 = 4.7µF, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C. All driver, voltage-regulator, and refer-
ence outputs unconnected except for bypass capacitors.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
HIGH-SIDE MOSFET DRIVER (BST, DRVH, XFRMRH)
Peak Source Current
V D RV H = GN D , p ul se w i d th < 100ns,
V B S T = V R E G9 , V X FR M R H = 0V
2 A
Peak Sink Current
V D RV H = V B S T , p ul se w i d th < 100ns,
V B S T = V R E G9 , V X FR M R H = 0V
5 A
DRVH Resistance Sourcing
I DRVH = 50mA, V BST = V REG9 ,
V XFRMRH = 0V
1.7 3.5 Ω
DRVH Resistance Sinking
I DRVH = -50mA, V BST = V REG9 ,
V XFRMRH = 0V
0.6 1.4 Ω
Skew Between Low-Side and
High-Side Drivers
0 ns
BOOST CAPACITOR CHARGE MOSFET (DRVB)
DRVB Resistance Sourcing I DRVB = 50mA 8 35 Ω
DRVB Resistance Sinking I DRVB = 50mA 5 35 Ω
Delay from Clock Fall 200 ns
One-Shot Pulse Width 300 ns
STARTUP (STARTUP)
Startup Threshold V STARTUP V STARTUP rising 1.4 2.1 V
Startup Threshold Hysteresis 330 mV
Internal Pullup Current I STARTUP 50 µA
S TARTU P P ul l d ow n M OS FE T
R
D S ( ON )
Sinking 10mA 50 100 Ω
OVERTEMPERATURE SHUTDOWN
Shutdown Junction Temperature Temperature rising 150 °C
Hysteresis 10 °C