Datasheet

ADP1828
Rev. C | Page 4 of 36
Parameter Conditions Min Typ Max Unit
OSCILLATOR
Oscillator Frequency SYNC = FREQ = GND 240 300 360 kHz
SYNC = GND, FREQ = VREG 480 600 720 kHz
R
FREQ
= 57.6 kΩ 240 300 360 kHz
R
FREQ
= 35.7 kΩ 370 450 530 kHz
R
FREQ
= 24.9 kΩ 480 600 720 kHz
SYNC Synchronization Range FREQ = GND 300 600 kHz
FREQ = VREG 600 1200 kHz
SYNC Input Pulse Width 200 ns
SYNC Pin Capacitance 5 pF
CURRENT SENSE
CSL Threshold Voltage Relative to PGND −17 −38 −58 mV
CSL Output Current CSL = PGND 42 50 56 A
Current Sense Blanking Period 100 ns
GATE DRIVERS
DH Rise Time C
DH
= 3 nF, V
BST
− V
SW
= 5 V 15 ns
DH Fall Time C
DH
= 3 nF, V
BST
− V
SW
= 5 V 10 ns
DL Rise Time C
DL
= 3 nF 15 ns
DL Fall Time C
DL
= 3 nF 10 ns
DH or DL Driver R
ON
, Sourcing Current
3, 4
Sourcing 1.5 A with a 0.1 µs pulse 2 Ω
DH or DL Driver R
ON
, Sinking Current
3, 4
Sinking 1.5 A with a 0.1 µs pulse 1.5 Ω
DH or DL Driver R
ON
, Sourcing Current IN = VREG = 3 V; sourcing 1 A with a 0.1 µs pulse 2.3 Ω
DH or DL Driver R
ON
, Sinking Current IN = VREG = 3 V; sinking 1 A with a 0.1 µs pulse 2 Ω
DH to DL, DL to DH Dead Time 40 ns
CLOCK OUT
CLOCKOUT Pulse Width 360 ns
CLKOUT Rise or Fall Time C
CLKOUT
= 47 pF 10 ns
SYNC to CLKOUT Propagation Delay, t
PD
C
CLKOUT
= 47 pF, C
SYNC
= 5 pF 40 ns
SYNC to CLKOUT Propagation Delay, t
PD
C
CLKOUT
= 47 pF, C
SYNC
= 5 pF, IN < 5 V 52 ns
LOGIC THRESHOLDS
SYNC, CLKSET, FREQ Logic High 1.8 V
SYNC, CLKSET Logic Low 0.4 V
FREQ Logic Low 0.25 V
CLKSET, SYNC, FREQ Input Leakage
Current
CLKSET, SYNC, FREQ = 0 V or VREG 1 A
EN Input Threshold 1.1 1.5 1.8 V
EN Input Threshold Hysteresis 0.2 V
EN Current Source EN = 0 V to 3.0 V −0.1 −0.6 −1.5 A
EN Input Impedance to 5 V Zener EN = 5.5 V to 20 V 100 kΩ
THERMAL SHUTDOWN
Thermal Shutdown Threshold
4
145 °C
Thermal Shutdown Hysteresis
4
15 °C