ZL2102_14 Datasheet, PDF (25/58 Pages) Intersil Corporation – 6A Digital Integrated Synchronous Step-Down DC/DC Regulator with Auto Compensation

ZL2102
VOUT_COMMAND (21h)
Definition: This command sets or reports the target output voltage. The integer value is multiplied by 2 raised to the power of
VOUT_MODE. This command cannot be set to be higher than the value of VOUT_MAX. This command can be written while the device is
enabled, but the adjusted value must be within 10% of the value that was selected prior to enable.
Data Length in Bytes: 2
Data Format: L16u.
Type: R/W
Default Value: Pin strap setting (VSET)
Units: Volts
Equation: V_OUT = VOUT_COMMAND×2^-13
Range: 0.6V to 5.5V or the value of VOUT_MAX
Reference: N/A
Example: VOUT_MODE = 13h (Since the value is 5-bit signed 13h = -13)
VOUT_COMMAND = 699Ah = 27,034
Target voltage equals: 27034× 2^-13 = 3.3V
COMMAND
Format
Bit Position
Access
Default Value
VOUT_COMMAND (21h)
Linear, unsigned binary
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w
Pin strap setting
VOUT_MAX (24h)
Definition: The VOUT_ MAX command sets an upper limit on the output voltage the unit can command regardless of any other
commands or combinations. The intent of this command is to provide a safeguard against a user accidentally setting the output
voltage to a possibly destructive level rather than to be the primary output overprotection. If a VOUT_COMMAND is sent with a value
higher than VOUT_MAX, the device will set the output voltage to VOUT_MAX. The initial value of VOUT_MAX is 110% of the pin strap
value of VOUT.
Data Length in Bytes: 2
Data Format: L16u
Type: R/W
Default Value: 1.10 x VOUT_COMMAND pin strap setting
Units: Volts
Equation: V_OUT max = VOUT_MAX×2^-13
Range: 0V to 5.5V
Reference: N/A
COMMAND
Format
Bit Position
Access
Default Value
VOUT_MAX (24h)
Linear, unsigned binary
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w r/w
1.10 x VOUT_COMMAND Pin Strap Setting
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FN8440.2
November 20, 2014